Chinese Journal of Electrical Engineering最新文献_第4页

Voltage Stabilization Control for Dual Three-phase Permanent Magnet Synchronous Generator Based on Cascaded Linear Active Disturbance Rejection Control 基于级联线性自抗扰控制的双三相永磁同步发电机稳压控制

Chinese Journal of Electrical Engineering Pub Date : 2024-06-13 DOI: 10.23919/CJEE.2024.000066

Chao Cheng;Yang He;Tao Tao;Huanan Wang;Wenxiang Zhao

{"title":"Voltage Stabilization Control for Dual Three-phase Permanent Magnet Synchronous Generator Based on Cascaded Linear Active Disturbance Rejection Control","authors":"Chao Cheng;Yang He;Tao Tao;Huanan Wang;Wenxiang Zhao","doi":"10.23919/CJEE.2024.000066","DOIUrl":"https://doi.org/10.23919/CJEE.2024.000066","url":null,"abstract":"Dual three-phase permanent magnet synchronous generator (DTP-PMSG) offers high efficiency and power density, and is suitable for high-reliability applications. To improve the voltage response of traditional linear active disturbance rejection voltage regulators in noisy environments, a voltage control method based on cascaded linear active disturbance rejection controllers is proposed. A low-pass filter is often used to filter noise in bus voltage signals, resulting in phase and amplitude losses. Therefore, in the proposed method, the output and filtering losses of the low-pass filter are defined as new system state variables. Subsequently, a cascaded linear active disturbance rejection controller is introduced to estimate the system state variables and compensate for filtering loss. Compared to the traditional linear active disturbance rejection voltage controller, the proposed method can effectively shorten the voltage recovery time and improve the anti-interference performance. Simulation and experimental results demonstrate the feasibility and effectiveness of the proposed control strategy.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"10 4","pages":"37-46"},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10557516","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142918120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review of High-Frequency PWM Acoustic Noise Suppression Methods for PMSMs PMSM 高频 PWM 声学噪声抑制方法综述

Chinese Journal of Electrical Engineering Pub Date : 2024-06-13 DOI: 10.23919/CJEE.2024.000078

Wentao Zhang;Haiyang Gao;Yongxiang Xu;Jibin Zou

引用次数: 0

Pole-Wrapped Negative Equivalent Magnetic Reluctance Structure-Based Transformer for Line-Frequency Isolation-Dependent Applications 用于线路频率隔离应用的极包负等效磁感结构变压器

Chinese Journal of Electrical Engineering Pub Date : 2024-06-13 DOI: 10.23919/CJEE.2024.000077

Yuanxi Chen;Weinong Fu;Shuangxia Niu;Hongjian Lin

{"title":"Pole-Wrapped Negative Equivalent Magnetic Reluctance Structure-Based Transformer for Line-Frequency Isolation-Dependent Applications","authors":"Yuanxi Chen;Weinong Fu;Shuangxia Niu;Hongjian Lin","doi":"10.23919/CJEE.2024.000077","DOIUrl":"https://doi.org/10.23919/CJEE.2024.000077","url":null,"abstract":"Isolation-dependent applications require a transformer with high efficiency, low magnetizing current, and anti-DC bias capability. The kilohertz planar negative magnetic reluctance structure is used to achieve this target with its magnetic-frequency variation property, which reduces the magnetic reluctance of the fundamental component. However, this design cannot be applied to low-frequency transformers owing to the high loss caused by its limited self-inductance and quality factor. To solve this problem, a pole-wrapped negative equivalent magnetic reluctance (PNEMR) structure is presented. The proposed design employed a copper-based PNEMR structure wrapped around the magnetic poles to enhance the fundamental flux and suppress the DC component of flux. Accordingly, the magnetizing current is reduced, and the isolation transformer is less susceptible to the DC bias. The proposed design can simultaneously improve the anti-DC magnetic bias capability, efficiency, and power factor of the transformers. To verify the effectiveness of the proposed design, a 10 kW C-core PNEMR structure-based transformer for isolation-dependent applications was constructed and compared to the generalized structures and transformers with planar negative magnetic reluctance structures. Results indicate that the PNEMR-based transformer can enhance the efficiency and power factor from 96.1% and 0.87 to 96.6% and 0.93, respectively, under full load conditions.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"10 3","pages":"12-24"},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10557491","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142397125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modified Parabolic Extrapolation Based Maximum Power Point Tracking of Thermoelectric Generator for Dynamic Conditions 基于改进抛物外推的动态条件下热电发电机最大功率点跟踪

Chinese Journal of Electrical Engineering Pub Date : 2024-06-13 DOI: 10.23919/CJEE.2024.000079

Adithya Chepuru;Saravanakumar Rajendran;Prabhakaran Koothu Kesavan

{"title":"Modified Parabolic Extrapolation Based Maximum Power Point Tracking of Thermoelectric Generator for Dynamic Conditions","authors":"Adithya Chepuru;Saravanakumar Rajendran;Prabhakaran Koothu Kesavan","doi":"10.23919/CJEE.2024.000079","DOIUrl":"https://doi.org/10.23919/CJEE.2024.000079","url":null,"abstract":"A thermoelectric generator (TEG) is a one of thermo electric conversion device that operates based on the heat difference between the two surfaces of a device. In a TEG, the power generation varies owing to various ambiences, sources, and loads. These variables make it difficult to draw available power from the device, leading to poor utilization of the TEG. To overcome these drawbacks, maximum power tracking technique (MPPT) can be employed in TEG. A modified PEMPPT scheme is developed to track the maximum power point (MPP) when there is a change in the operating conditions, and is based on a parabolic curve of the power current characteristics of the TEG. The proposed algorithm is developed by considering two features. First, the reduction in tracking time by a sample compared with the PEMPPT algorithm by considering a new shifted point as the first duty. Second, the sign of the voltage is checked to limit the voltage, current, and power by applying the next duties close to the MPP. The proposed system is simulated and experimentally verified using a laboratory prototype. The simulation and experimental results show that the tracking time of the proposed algorithm is almost 3/4th of PEMPPT.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"10 4","pages":"97-105"},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10557514","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142918119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 of Source-load Interaction in Demand Response Considering the Potential of Flexible Load Dispatch 考虑柔性负荷调度潜力的需求响应源荷交互研究

Chinese Journal of Electrical Engineering Pub Date : 2024-06-13 DOI: 10.23919/CJEE.2024.000074

Wenqi Ge;Xiaotong Wang

{"title":"Study of Source-load Interaction in Demand Response Considering the Potential of Flexible Load Dispatch","authors":"Wenqi Ge;Xiaotong Wang","doi":"10.23919/CJEE.2024.000074","DOIUrl":"https://doi.org/10.23919/CJEE.2024.000074","url":null,"abstract":"With the further deepening of power market reform, flexible loads have become the focus of attention for power supply and demand. In the context of new power systems, it is necessary to consider the potential of flexible load dispatch on the side of the customer for power demand response research. Based on this, a typical flexible load is selected in the community, and an economic model with minimum cost is established as the objective function. This model is used to regulate the power load curve and achieve valley filling and peak shaving. Additionally, considering different weather conditions, the calculation example analyzes the effect of flexible load participation in regulation under various environments and combines the time-of-use tariff for dispatch. The results can flexibly and effectively guide users to participate in demand response, reduce economic input on the user side, and meet the higher requirements of flexible demand-side regulation resources to support the safe operation of the power system, which has certain application potential and economic value.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"10 4","pages":"141-151"},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10557515","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142918117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ice-Covered Environmental Adaptability Assessment for Overhead Contact System in High-Speed Railways 高速铁路架空接触网系统的覆冰环境适应性评估

Chinese Journal of Electrical Engineering Pub Date : 2024-06-01 DOI: 10.23919/CJEE.2024.000058

Huan Zhang;Wenfu Wei;Like Pan;Zefeng Yang;Guizao Huang;Yuxin Liu;Xing Chen;Ziqian Yang;Guangning Wu

{"title":"Ice-Covered Environmental Adaptability Assessment for Overhead Contact System in High-Speed Railways","authors":"Huan Zhang;Wenfu Wei;Like Pan;Zefeng Yang;Guizao Huang;Yuxin Liu;Xing Chen;Ziqian Yang;Guangning Wu","doi":"10.23919/CJEE.2024.000058","DOIUrl":"https://doi.org/10.23919/CJEE.2024.000058","url":null,"abstract":"High-speed trains rely on pantograph-catenary systems (PCSs) to collect electrical energy from power systems. However, the dynamic interaction between the pantograph and the catenary system may become mismatched once ice accumulates on the overhead conductors. More frequent arcing may occur within the PCS during train operation, posing an unpredictable threat to operational safety. Therefore, it is crucial to evaluate the ability of overhead contact system (OCS) to withstand ice-covered variability during line desgin. A new strategy is proposed to evaluate the adaptive performance of an OCS under various icing conditions. First, a dynamic model considering icing conditions is constructed to simulate the interaction within the PCS. Five different OCS structures with various icing thicknesses are studied. The parameters of the contact force within the PCS and proportion of high-possibility arcing moments are obtained. The dependence of the contact force on the icing thickness and pantograph displacement has been illustrated in the form of cloud maps. Finally, the OCS sensitivity coefficient is calculated, and ice-covered environmental adaptability assessments for the five different OCS oes structures are compared.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"10 2","pages":"70-79"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10586893","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141543838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review of Inductance Identification Methods Considering Inverter Nonlinearity for PMSM 考虑 PMSM 逆变器非线性的电感识别方法综述

Chinese Journal of Electrical Engineering Pub Date : 2024-06-01 DOI: 10.23919/CJEE.2023.000046

Qiwei Wang;Jiqing Xue;Gaolin Wang;Yihua Hu;Dianguo Xu

引用次数: 0

Overview of Torque Ripple Minimization Methods for Permanent Magnet Synchronous Motors Based on Harmonic Injection 基于谐波注入的永磁同步电机转矩纹波最小化方法概述

Chinese Journal of Electrical Engineering Pub Date : 2024-06-01 DOI: 10.23919/CJEE.2023.000045

Peng Yi;Wenzhi Zheng;Xianglin Li

引用次数: 0

A Simple Primary Key Algorithm Based Shade Dispersion Method for Maximizing PV Power Generation Under Partial Shading Conditions 一种基于主键算法的简单遮阳分散方法，用于在部分遮阳条件下实现光伏发电量最大化

Chinese Journal of Electrical Engineering Pub Date : 2024-06-01 DOI: 10.23919/CJEE.2024.000067

Prabhakaran Koothu Kesavan;A. Karthikeyan;Manoj Kumar;Sushant Mandal

{"title":"A Simple Primary Key Algorithm Based Shade Dispersion Method for Maximizing PV Power Generation Under Partial Shading Conditions","authors":"Prabhakaran Koothu Kesavan;A. Karthikeyan;Manoj Kumar;Sushant Mandal","doi":"10.23919/CJEE.2024.000067","DOIUrl":"https://doi.org/10.23919/CJEE.2024.000067","url":null,"abstract":"The output power generation of a photovoltaic (PV) array reduces under partial shading, resulting in multiple local maxima in the PV characteristics and inaccurate tracking of the global maximum power point (GMPP). Various interconnection schemes are available to reduce power losses under partial shading. In this study, a primary key algorithm is proposed for distributing shading across an array. This method is suitable for any \u0000<tex>$ntimes n$</tex>\u0000 PV array configuration and involves fewer calculations and variables, leading to reduced computational complexity. The power generations of a \u0000<tex>$9times 9$</tex>\u0000 PV array under four different shading conditions were compared with the configurations of: total cross-tied (TCT) and Su Du Ku, physical relocation and fixed column position of modules with fixed electrical connection (PRFCPM-FEC), and magic square (MS) and improved-odd-even-prime (IOEP). The advantage of the proposed method is that once the primary key elements are obtained, the remaining array elements are numbered in a simpler manner. The results obtained using the proposed arrangement show that the power is enhanced with reference to the TCT and is comparable to the Su Do Ku, PRFCPM-FEC, MS, and IOEP reconfigurations.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"10 2","pages":"93-102"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10586857","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141543848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wavelet Synchro-Squeezing Transform and Dynamic Threshold Supported Symmetrical Power Swing Technique for Modern Transmission Network 用于现代传输网络的小波同步挤占变换和动态阈值支持对称功率摆动技术

Chinese Journal of Electrical Engineering Pub Date : 2024-06-01 DOI: 10.23919/CJEE.2024.000064

Monalisa Biswal;Kumar Raja Andanapalli;Papia Ray

{"title":"Wavelet Synchro-Squeezing Transform and Dynamic Threshold Supported Symmetrical Power Swing Technique for Modern Transmission Network","authors":"Monalisa Biswal;Kumar Raja Andanapalli;Papia Ray","doi":"10.23919/CJEE.2024.000064","DOIUrl":"https://doi.org/10.23919/CJEE.2024.000064","url":null,"abstract":"Distance relays are prone to symmetrical power swing phenomenon. To mitigate this issue, a dynamic threshold-supported algorithm is proposed. A single logic is not supposed to be secure for all cases. Thus, a supervisory algorithm, as proposed in this study, can aid in the improvement of the immunity of the relay during swing cases and be sensitive to symmetrical faults. In the developed stages, a three-phase power signal was used and processed in two different steps: (i) extraction of the effective intrinsic mode function (IMF) selected from the Kurtosis analysis using the wavelet synchro-squeezing transform, and (ii) estimation of the average Euclidean distance index using the absolute values of the decomposed IMF's. The adaptive threshold facilitated resistance to swing situations. At the onset of a symmetrical fault, the proposed algorithm efficiently discriminated among events using a dynamic threshold. The IEEE 39-bus test system and Indian Eastern Power Grid networks were modelled using PSCAD software, and cases were generated to test the efficacy of the method. The impact of the proposed method on a large-scale wind farm was also evaluated. A comparative analysis with other existing methods revealed the security and dependability of the proposed method.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"10 2","pages":"30-43"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10586885","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141543322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0