High Voltage最新文献_第5页

Development of a novel signal restoration algorithm to eliminate the distorted components in space charge measurement excited by femtosecond laser irradiation 开发新型信号恢复算法，消除飞秒激光照射激发的空间电荷测量中的失真成分

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-26 DOI: 10.1049/hve2.12409

Tianrun Qi, Hanwen Ren, Haoyu Gao, Qingmin Li, Yidan Ma, Yiqun Ma, Tao Xiao

{"title":"Development of a novel signal restoration algorithm to eliminate the distorted components in space charge measurement excited by femtosecond laser irradiation","authors":"Tianrun Qi, Hanwen Ren, Haoyu Gao, Qingmin Li, Yidan Ma, Yiqun Ma, Tao Xiao","doi":"10.1049/hve2.12409","DOIUrl":"10.1049/hve2.12409","url":null,"abstract":"For the space charge measurement method with optical excitation for electrical insulation, the distortion of the excitation laser on the measurement signal and the accumulation of space charge have not been discussed before. Both experiment and simulation results show that three types of distorted components introduced by optical excitation can lead to distortion of the upper interface signal. Further, the factors causing distortion of the measured signal and the formation mechanism are analysed. A virtual electrode potential compensation method and a distorted component extraction method are proposed. Meanwhile, an attenuation restoration and charge conversion correction factor is introduced, leading to a novel signal processing algorithm adapted to space charge optical measurement methods. Compared with the traditional algorithm, the novel algorithm has an error of less than 1% in the calculation of charge and electric field strength, with an increase in accuracy of 47.7% and 9.81%, respectively. By applying the novel restoration algorithm, the comparison shows that the space charge accumulation does not change significantly under laser irradiation, verifying the reliability of the optical excitation. The given algorithm can provide a theoretical and technical foundation for the realisation of the optical measurement method for space charge.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12409","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140303569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A high-power electromagnetic source for disabling improvised explosive devices 用于拆除简易爆炸装置的大功率电磁源

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-25 DOI: 10.1049/hve2.12416

Laurent Ariztia, Njomza Ibrahimi, Alexey Zhabin, Antoine Silvestre de Ferron, Marc Rivaletto, Edson Martinod, Valérie Bertrand, Bucur Novac, Laurent Pécastaing

{"title":"A high-power electromagnetic source for disabling improvised explosive devices","authors":"Laurent Ariztia, Njomza Ibrahimi, Alexey Zhabin, Antoine Silvestre de Ferron, Marc Rivaletto, Edson Martinod, Valérie Bertrand, Bucur Novac, Laurent Pécastaing","doi":"10.1049/hve2.12416","DOIUrl":"10.1049/hve2.12416","url":null,"abstract":"Ultra-wideband (UWB) microwave sources driven by specialised pulsed power generators have experienced a considerable development in the last decade due to their wide domain of new applications such as defence or counter-terrorism activity. The authors present the main findings of a research dedicated to the development of a pulsed power-driven electromagnetic field source for disabling improvised explosive devices (IED). The pulsed power generator driving the source is a 13-stage compact Marx producing voltage pulses reaching an amplitude of 0.5 MV, with a pulse repetition frequency (PRF) of up to 100 Hz. The generator is coupled to a bipolar pulse forming line, providing bipolar pulses with a dV/dt of around 1.6 MV/ns. This pulsed power system feeds an array composed of 16 Koshelev-type UWB antennas through an impedance matching transformer. The resulting electromagnetic source is capable to produce pulsed electric fields (PEFs) having a figure-of-merit (FOM) of 1 MV. First, practical experiments were carried out to study the effects of the PEFs on targets. The targets used in the present study are M2B type flashbulbs, known to have the same susceptibility as the US army M6 detonator. Different configurations of wires (shielded, twisted, etc) with different lengths were used in connecting items inside these targets. The tests were performed by placing the flashbulbs at different distances to determine the essential parameters (i.e., amplitude, duration, and frequency range) of the PEFs required to trigger them. An overview of the experimental campaign and the main findings are also presented followed by conclusions.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12416","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140303625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel approach towards parametric assessment of reliability and resilience of high voltage mica-based insulation systems by statistical analysis of experimental failure data 通过对实验故障数据进行统计分析，对高压云母绝缘系统的可靠性和弹性进行参数评估的新方法

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-25 DOI: 10.1049/hve2.12431

Shahram Negari, Davoud Esmaeil Moghadam

{"title":"A novel approach towards parametric assessment of reliability and resilience of high voltage mica-based insulation systems by statistical analysis of experimental failure data","authors":"Shahram Negari, Davoud Esmaeil Moghadam","doi":"10.1049/hve2.12431","DOIUrl":"10.1049/hve2.12431","url":null,"abstract":"Insulation systems in high-voltage electric machines play a pivotal role in the reliable operation and longevity of the equipment. Mica-based insulation materials have proven to possess and maintain excellent dielectric properties in the long run and prevent premature insulation degradation. Numerous qualifications tests, such as voltage endurance, are outlined in IEC and IEEE standards. The authors, however, take a different parametric approach, opting for reliability assessment of insulation systems using derived three-parameter Weibull models. Therefore, instead of simple pass–fail criteria, empirical data is employed to determine failure rate probabilities quantitatively and objectively. Experimental data, including breakdown, dissipation factor, and partial discharge measurements, are used to construct the Weibull distribution model to predict fault and failure rates and calculate hazard functions. The rigorous examinations interpreted through the analytical model help assess insulation system resilience and particularly the impact of electrical field stress and mica content. Variation of electrical stress from 66.75 to 71.20 V/mil demonstrated how the mean time to failure of the system changed from 146.4 to 85.1 at 3 Un, hence identifying opportunities for design improvement and uncovering performance boundaries. Ultimately, the developed framework enhances comprehension of insulation system failure probabilities, guiding design decisions and ensuring a secure and reliable operation of electrical machines across applications.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12431","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140303630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation method for electromagnetic interference complexity of high voltage switch based on feature extraction and GCC-GRU network 基于特征提取和 GCC-GRU 网络的高压开关电磁干扰复杂性评估方法

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-25 DOI: 10.1049/hve2.12402

Wenchao Lu, Jiandong Duan, Lin Cheng, Jiangping Lu, Jiaxin Tao, Jianning Yin

{"title":"Evaluation method for electromagnetic interference complexity of high voltage switch based on feature extraction and GCC-GRU network","authors":"Wenchao Lu, Jiandong Duan, Lin Cheng, Jiangping Lu, Jiaxin Tao, Jianning Yin","doi":"10.1049/hve2.12402","DOIUrl":"10.1049/hve2.12402","url":null,"abstract":"When some new-type sensors are subjected electromagnetic interference (EMI), the traditional standard can no longer serve as the guidance for their EMI protection. Therefore, it is necessary to evaluate the complexity of the new sensing equipment's suffering from electromagnetic interference. A hybrid method of feature extraction and complexity evaluation of Electromagnetic Interference signals based on generalised correntropy criterion (GCC) is proposed. First, a variational mode decomposition algorithm for adaptive extraction of decomposed signals is constructed using GCC, and Generalised S-transform is used for processing and reorganisation. Then, according to the time-frequency space model, a new quantitative evaluation criterion interference factor is proposed, which overcomes the shortcomings of the traditional qualitative classification and the inability to solve the cross classification of indicators. Then, the Gated Recurrent Unit is introduced, and the GCC-GRU evaluation model with GCC as the loss function is derived. The authors conduct EMI tests and measured signal evaluation with Medium Voltage and High Voltage switches, and the results show that the method proposed is correct and effective.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12402","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140303652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel linear regression density peak clustering-based transmission line protection for line-commuted converter-voltage source converter hybrid high voltage direct current system 基于线性回归密度峰值聚类的新型输电线路保护，适用于线路换流器-电压源换流器混合高压直流系统

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-25 DOI: 10.1049/hve2.12436

Shunguang Lei, Hongchun Shu, Zhimin Li, Yinan Hu, Xincui Tian, Taiwen Liu

{"title":"A novel linear regression density peak clustering-based transmission line protection for line-commuted converter-voltage source converter hybrid high voltage direct current system","authors":"Shunguang Lei, Hongchun Shu, Zhimin Li, Yinan Hu, Xincui Tian, Taiwen Liu","doi":"10.1049/hve2.12436","DOIUrl":"10.1049/hve2.12436","url":null,"abstract":"Line-commuted converter (LCC)–voltage source converter (VSC) hybrid high voltage direct current (HVDC) transmission system is an innovative technology, the existing LCC and VSC protection require setting, and it is difficult to be directly applied in the LCC–VSC hybrid HVDC, which is a serious problem in practical engineering. A novel linear regression density peak clustering (LRDPC) approach is introduced for transmission line protection. LRDPC employs Least Squares linear regression to compute the fault current slope, followed by density peak clustering for fault type identification. The proposed protection structure is straightforward and setting-less, eliminating the need for fault pole selection elements and classification thresholds. Validation on the Kun-Liu-Long LCC–VSC HVDC RTDS system demonstrates the method's effectiveness in identifying diverse faults under varying conditions, including fault types, locations, resistances, and signal-to-noise ratios. Notably, it remains robust against fault impedance (600 Ω) and noise interference (20 dB).","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12436","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140303638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical assessment of discharge effects on the decomposition tendency of C6F12O over metallic surfaces 放电对金属表面 C6F12O 分解趋势影响的理论评估

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-23 DOI: 10.1049/hve2.12426

Zhaolun Cui, Yanpeng Hao, Shuangshuang Tian, Xiaoxing Zhang, Yashuang Zheng

{"title":"Theoretical assessment of discharge effects on the decomposition tendency of C6F12O over metallic surfaces","authors":"Zhaolun Cui, Yanpeng Hao, Shuangshuang Tian, Xiaoxing Zhang, Yashuang Zheng","doi":"10.1049/hve2.12426","DOIUrl":"10.1049/hve2.12426","url":null,"abstract":"C6F12O is proposed to be one potential eco-friendly insulation gas to replace SF6. However, the assessment of its decomposition properties and the compatibility with metal electrodes in discharge faults is still challenging, which greatly hinders the development of its insulation and arc-extinction applications. Herein, a theoretical method is proposed to reasonably address the discharge effects on C6F12O decomposition over typical Cu and Al electrodes at atomic scale. The results show that both the external electric field and the excess electrons could affect the activation of C6F12O by changing the electron acceptance of C6F12O and the orbital hybridisation during the surface bonding. On metal surfaces, the C-F single bond in adsorbed C6F12O is the weakest position to decompose, and its cleavage could be promoted by the discharge effects. After the C-F breaking, the C-C cleavage remains unfavourable on Cu (111), but it is significantly promoted on Al (111), indicating a higher corrosion risk on the Al surface via continuous C6F12O decompositions. The proposed method as a valid supplement to the experiment reveals the discharge effects and the decomposition tendency of C6F12O on metal electrodes in discharge faults, which broadens the means for insulation gas evaluation.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12426","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140211091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on thermal cycling ageing resistance of performances of polypropylene/elastomer/boron nitride nanocomposites for high voltage direct current cable insulation 用于高压直流电缆绝缘的聚丙烯/弹性体/氮化硼纳米复合材料耐热循环老化性能研究

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-22 DOI: 10.1049/hve2.12429

Jing Li, Yu Gao, Zheng Song, Baixin Liu, Chenyi Guo, Yu Chen, Junguo Gao, Boxue Du

{"title":"Study on thermal cycling ageing resistance of performances of polypropylene/elastomer/boron nitride nanocomposites for high voltage direct current cable insulation","authors":"Jing Li, Yu Gao, Zheng Song, Baixin Liu, Chenyi Guo, Yu Chen, Junguo Gao, Boxue Du","doi":"10.1049/hve2.12429","DOIUrl":"10.1049/hve2.12429","url":null,"abstract":"The influences of thermal cycling ageing on structures and insulation performances of polypropylene (PP)/elastomer/boron nitride (BN) nanocomposites are investigated. The Melt blending method was used to prepare the nanocomposites, in which propylene-based elastomer (PBE) or ethylene-octene copolymer elastomer (EOC) was contained for comparison. Then, the samples were treated using a thermal cycling process with a temperature range from −30 to 150°C, and the number of thermal cycles was set from 0 to 15. Scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry and X-ray diffraction measurements were taken to facilitate the comprehension of structural changes. Additionally, measurements were taken to assess the trap distribution and direct current (DC) breakdown strength of the samples. The obtained results revealed that following thermal cycling ageing, the morphology and crystallinity of PP/PBE/BN remained almost unchanged. In contrast, PP/EOC/BN exhibited substantial microstructural damage accompanied by a significant reduction in crystallinity. As the number of thermal cycles increased, the trap level and DC breakdown strength of PP/PBE/BN were maintained at high levels, while those of PP/EOC/BN initially remained stable but then experienced a sharp decline. It is suggested that the addition of BN nanoparticles enhances the thermal cycling ageing resistance of the PP/PBE blend, whereas it weakens this resistance of the PP/EOC blend.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12429","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140219969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gas production analysis for the buffer layer of high-voltage cross-linked polyethylene cables 高压交联聚乙烯电缆缓冲层产气分析

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-21 DOI: 10.1049/hve2.12430

Wenqing Zhou, Licheng Li, Hao Cheng, Xun Wu, Gang Liu

{"title":"Gas production analysis for the buffer layer of high-voltage cross-linked polyethylene cables","authors":"Wenqing Zhou, Licheng Li, Hao Cheng, Xun Wu, Gang Liu","doi":"10.1049/hve2.12430","DOIUrl":"10.1049/hve2.12430","url":null,"abstract":"The cross-linked polyethylene insulated cables with corrugated aluminium-sheathed are widely used in urban power systems. Recently, a new type of power cable fault has emerged, primarily due to defects in the buffer layer. However, there is a notable lack of effective evaluation methods for these defects in high-voltage (HV) cables. Initially, a theoretical analysis of the gas generation mechanism in the cable buffer layer was conducted, identifying distinct gas products at different stages. Subsequently, the diffusion kinetics of gas within the cable was studied, highlighting the importance of gas in determining the state of the buffer layer. The authors then collected and analysed 60 sets of buffer layer gases from two operational 110 kV HV cables using gas chromatography technology. Combining these results with the findings from on-site inspections, the characteristic gas components and concentration distribution under various defect conditions were summarised. The results found higher concentrations of CH4 in normal cables and defective cables, while there are higher concentrations of H2, CO and CO2 in defective cables, and the oxygen content decreases. The discoveries made in this research may offer a new approach for assessing the state of the cable buffer layer.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12430","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140189147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accelerated thermal ageing on performance of polypropylene-based semiconducting screen for high voltage direct current cable applications—Effect of antioxidants 加速热老化对高压直流电缆用聚丙烯基半导体屏蔽性能的影响--抗氧化剂的效果

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-20 DOI: 10.1049/hve2.12415

Haitian Wang, Yi Luo, Mingyu Zhou, Xintong Ren, George Chen

{"title":"Accelerated thermal ageing on performance of polypropylene-based semiconducting screen for high voltage direct current cable applications—Effect of antioxidants","authors":"Haitian Wang, Yi Luo, Mingyu Zhou, Xintong Ren, George Chen","doi":"10.1049/hve2.12415","DOIUrl":"10.1049/hve2.12415","url":null,"abstract":"The potential of using eco-friendly thermoplastic polypropylene (PP)-based insulation for high voltage direct current (HVDC) cable has been widely investigated but much less work on the PP-based semiconducting screen (SC). Considering a long service life (>30 years) under high temperature and high electrical stress is required for typical HVDC cables, and investigations on the effect of antioxidant (AO) concentration and thermal oxidative stability, mechanical, and electrical properties of PP-based SCs have been conducted. It has been demonstrated that an appropriate combination and amounts of AOs are critical for achieving high thermal stability and maintaining the mechanical properties of SC after ageing in a harsh environment (150°C, with Cu, in air, 7 days). Although higher amounts of space charges have been observed in SC/PP/SC samples with higher AO concentrations, the impact on space charge behaviours is less after ageing, suggesting that ageing (or operating at high temperature) leads to microstructure evolution in SC and can potentially mitigate space accumulation in PP-based insulating materials.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/hve2.12415","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140189155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parallel multi-rate simulation scheme for modular multilevel converter-based high-voltage direct current with accurate simulation of high-frequency characteristics and field programmable gate array-based implementation 基于模块化多电平转换器的高压直流电并行多速率模拟方案，精确模拟高频特性并基于现场可编程门阵列实现

IF 4.4 2区工程技术

High Voltage Pub Date : 2024-03-19 DOI: 10.1049/hve2.12418

Chongru Liu, Yanqi Hou, Haoyun Dong, Yipeng Lv, Xinyan Wang, Chenbo Su

{"title":"Parallel multi-rate simulation scheme for modular multilevel converter-based high-voltage direct current with accurate simulation of high-frequency characteristics and field programmable gate array-based implementation","authors":"Chongru Liu, Yanqi Hou, Haoyun Dong, Yipeng Lv, Xinyan Wang, Chenbo Su","doi":"10.1049/hve2.12418","DOIUrl":"https://doi.org/10.1049/hve2.12418","url":null,"abstract":"The real-time simulation of the modular multilevel converter-based high-voltage direct current (MMC-HVDC) transmission system has become a popular research topic. However, in order to meet the real-time performance, the real-time simulation technology will cause additional simulation errors for MMC-HVDC, especially on its frequency characteristics. Therefore, a parallel multi-rate simulation scheme for MMC-HVDC is developed in this work to ensure accurate simulation of high-frequency characteristics. Firstly, a non-error method based on converter transformer decoupling is proposed to decouple the converter and alternating current system; direct current transmission line decoupling and arm decoupling methods are used to achieve decoupling among and within converters. A multi-rate data synchronous mechanism is established by considering the differences among high-frequency characteristics caused by delayed data interaction. Secondly, the computing architectures of the primary system solver and modular multilevel converter controller are designed based on a field programmable gate array (FPGA). The real-time simulation platform for a four-terminal true bipolar MMC-HVDC is constructed based on the FPGA array. Thirdly, the factors in multi-rate simulation affecting the simulation accuracy of high-frequency characteristics are analysed. The simulator is shown to be accurate in steady and dynamic states. The authors also verify its applicability for further research on high-frequency resonance based on control experiments.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140189177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0