CSEE Journal of Power and Energy Systems最新文献_第5页

Interaction Quantification of MTDC Systems Connected with Weak AC Grids 与弱交流电网连接的 MTDC 系统的相互作用量化

IF 6.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2022.08260

Wanning Zheng;Jiabing Hu;Li Chai;Bing Liu;Zixia Sang

{"title":"Interaction Quantification of MTDC Systems Connected with Weak AC Grids","authors":"Wanning Zheng;Jiabing Hu;Li Chai;Bing Liu;Zixia Sang","doi":"10.17775/CSEEJPES.2022.08260","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2022.08260","url":null,"abstract":"The small-signal stability of multi-terminal high voltage direct current (HVDC) systems has become one of the vital issues in modern power systems. Interactions among voltage source converters (VSCs) have a significant impact on the stability of the system. This paper proposes an interaction quantification method based on the self-/en-stabilizing coefficients of the general \u0000<tex>$boldsymbol{N}-mathbf{terminal}$</tex>\u0000 HVDC system with a weak AC network connection. First, we derive the explicit formulae of self-/en-stabilizing coefficients for any \u0000<tex>$boldsymbol{N}-mathbf{terminal}$</tex>\u0000 HVDC system, which can quantify the interactions through different paths analytically. The relation between the self-/en-stabilizing coefficients and the poles of the system can be used to evaluate the impact of the interactions on the system stability effectively. Then, we employ the obtained formulae to analyze the parameter sensitivity and explain how a parameter affects the stability of the system through different paths of interactions. Finally, extensive examples are given to demonstrate the effectiveness of the proposed method.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"10 5","pages":"2088-2099"},"PeriodicalIF":6.9,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520204","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142397361","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

Data-Driven Fault Detection of Multiple Open-Circuit Faults for MMC Systems Based on Long Short-Term Memory Networks 基于长短期记忆网络的 MMC 系统多重开路故障数据驱动型故障检测

IF 6.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2022.05990

Chenxi Fan;Kaishun Xiahou;Lei Wang;Q. H. Wu

{"title":"Data-Driven Fault Detection of Multiple Open-Circuit Faults for MMC Systems Based on Long Short-Term Memory Networks","authors":"Chenxi Fan;Kaishun Xiahou;Lei Wang;Q. H. Wu","doi":"10.17775/CSEEJPES.2022.05990","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2022.05990","url":null,"abstract":"This paper presents a long short-term memory (LSTM)-based fault detection method to detect the multiple open-circuit switch faults of modular multilevel converter (MMC) systems with full-bridge sub-modules (FB-SMs). Eighteen sensor signals of grid voltages, grid currents and capacitance voltages of MMC for single and multi-switch faults are collected as sampling data. The output signal characteristics of four types of single switch faults of FB-SM, as well as double switch faults in the same and different phases of MMC, are analyzed under the conditions of load variations and control command changes. A multi-layer LSTM network is devised to deeply extract the fault characteristics of MMC under different faults and operation conditions, and a Softmax layer detects the fault types. Simulation results have confirmed that the proposed LSTM-based method has better detection performance compared with three other methods: K-nearest neighbor (KNN), naive bayes (NB) and recurrent neural network (RNN). In addition, it is highly robust to model uncertainties and Gaussian noise. The validity of the proposed method is further demonstrated by experiment studies conducted on a hardware-in-the-loop (HIL) testing platform.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"10 4","pages":"1563-1574"},"PeriodicalIF":6.9,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141966191","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

Coordinated Suppression Method of Fault Current for DC Grid with Novel Dissipative Resistors Topology 采用新型耗散电阻拓扑结构的直流电网故障电流协调抑制方法

IF 6.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2022.07880

Shouqi Jiang;Huanyu Zhao;Guoqing Li;Yechun Xin;Lixin Wang;Weiru Wang

{"title":"Coordinated Suppression Method of Fault Current for DC Grid with Novel Dissipative Resistors Topology","authors":"Shouqi Jiang;Huanyu Zhao;Guoqing Li;Yechun Xin;Lixin Wang;Weiru Wang","doi":"10.17775/CSEEJPES.2022.07880","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2022.07880","url":null,"abstract":"A DC grid based on half-bridge modular multilevel converters (HB-MMC) is a feasible means to realize the friendly grid connection of renewable energy. To solve problems such as the high cost and technical difficulty of DC circuit breakers (DCCB), a coordinated control method for fault current suppression of DC grid connecting wind power is proposed. The key influencing factors of DC fault current are revealed by fault characteristics analysis, and an adaptive current-limiting control method for MMC is proposed, whose parameter selection principles are designed to ensure the safe operation of equipment while achieving effective suppression of fault current. In addition, a novel configuration method of dissipative resistors with the current-limiting function is proposed, which can solve the problem of surplus power in the DC grid and reduce the current stress of converter valves. Based on this, a coordination scheme of dissipative resistors, the adaptive current-limiting control method, and DCCBs are proposed to block fault current, effectively reducing the manufacturing difficulty and cost of DCCB. Finally, a four-terminal DC grid simulation model is built based on the RTLAB OP5600 real-time digital simulation platform, and the effectiveness and feasibility of the proposed methods are verified.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"10 6","pages":"2371-2383"},"PeriodicalIF":6.9,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520187","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859145","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

Double-Layer Optimization Mechanism for Multi-Area OPF Considering Valve-Point Loading Effect 考虑阀点加载效应的多区域OPF双层优化机制

IF 6.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2022.08660

Jizhong Zhu;Cong Zeng;Yun Liu;Xuancong Xu

{"title":"Double-Layer Optimization Mechanism for Multi-Area OPF Considering Valve-Point Loading Effect","authors":"Jizhong Zhu;Cong Zeng;Yun Liu;Xuancong Xu","doi":"10.17775/CSEEJPES.2022.08660","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2022.08660","url":null,"abstract":"In terms of the multi-area optimal power flow (OPF) problem, the optimized objectives are always a fuel cost function expressed by a second-order polynomial. However, the valve-point loading effect, whose cost curve is a transcendental function formed by the superposition of the sine and polynomial function, will make the objective function non-convex and non-differentiable. Conventional distributed optimization technologies can hardly make a solution directly. Therefore, it is necessary to realize a distributed solution for multi-area OPF from another point of view. In this paper, we constitute a new double-layer optimization mechanism. The proposed distributed meta-heuristic optimization (DMHO) algorithm is put on the top layer to optimize the dispatching of each area, and in each iteration a distributed power flow calculation method is embedded as the bottom layer to minimize the mismatch of power balance. Numerical experiments demonstrate that the proposed approach not only implements a multi-area OPF distributed solution but also accelerates the convergence rate, improves the solution accuracy and enhances the robustness. In addition, a fully decentralized computation experiment is performed in an actual distributed environment to test its practicability and computation efficiency.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"11 2","pages":"683-691"},"PeriodicalIF":6.9,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520186","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143860894","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

Ex-Ante and Ex-Post Decomposition Strategy for Ultra-Short-Term Wind Power Prediction 风电超短期预测的事前事后分解策略

IF 5.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2022.07000

Peng Lu;Zhuo Li;Lin Ye;Ming Pei;Yingying Zheng;Yongning Zhao

{"title":"Ex-Ante and Ex-Post Decomposition Strategy for Ultra-Short-Term Wind Power Prediction","authors":"Peng Lu;Zhuo Li;Lin Ye;Ming Pei;Yingying Zheng;Yongning Zhao","doi":"10.17775/CSEEJPES.2022.07000","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2022.07000","url":null,"abstract":"Highly reliable wind power prediction is feasible and promising for smart grids integrated with large amounts of wind power. However, the strong fluctuation features of wind power make wind power less predictable. This paper proposes a novel wind power prediction approach, incorporating wind power ex-ante and ex-post decomposition and correction. Firstly, the initial wind power during the wind power decomposition stage is decomposed into trend, fluctuation, and residual data, respectively, and the corresponding preliminary prediction models are developed, respectively. Secondly, in the error correction stage, the errors produced by the preliminary prediction model are corrected by persistence methods to compensate for final prediction errors. Moreover, the proposed model's comprehensive deterministic and probabilistic analysis is investigated in depth. Finally, the outcomes of numerical simulations demonstrate that the proposed approach can achieve good performance since it can reduce wind power forecast errors compared to other established deterministic models and uncertainty models.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"11 4","pages":"1454-1465"},"PeriodicalIF":5.9,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520160","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831808","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

Proactive Resilience Enhancement of Power Systems with Link Transmission Model-Based Dynamic Traffic Assignment Among Electric Vehicles 利用基于链路传输模型的电动汽车动态交通分配，主动增强电力系统的复原力

IF 7.1 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2022.07470

Haoyuan Yan;Tianyang Zhao;Zhanglei Guan

{"title":"Proactive Resilience Enhancement of Power Systems with Link Transmission Model-Based Dynamic Traffic Assignment Among Electric Vehicles","authors":"Haoyuan Yan;Tianyang Zhao;Zhanglei Guan","doi":"10.17775/CSEEJPES.2022.07470","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2022.07470","url":null,"abstract":"The rapid development of electric vehicles (EVs) is strengthening the bi-directional interactions between electric power networks (EPNs) and transportation networks (TNs) while providing opportunities to enhance the resilience of power systems towards extreme events. To quantify the temporal and spatial flexibility of EVs for charging and discharging, a novel dynamic traffic assignment (DTA) problem is proposed. The DTA problem is based on a link transmission model (LTM) with extended charging links, depicting the interaction between EVs and power systems. It models the charging rates as continuous variables by an energy boundary model. To consider the evacuation requirements of TNs and the uncertainties of traffic conditions, the DTA problem is extended to a two-stage distributionally robust version. It is further incorporated into a two-stage distributionally robust unit commitment problem to balance the enhancement of EPNs and the performance of TNs. The problem is reformulated into a mixed-integer linear programming problem and solved by off-the-shelf commercial solvers. Case studies are performed on two test networks. The effectiveness is verified by the numerical results, e.g., reducing the load shedding amount without increasing the unmet traffic demand.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"10 3","pages":"1320-1330"},"PeriodicalIF":7.1,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520179","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141304077","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

Demand Response Management with Latency Difference in Distributed Wireless Network 分布式无线网络中时延差异的需求响应管理

IF 6.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2022.07590

Qingfeng Ding;Qianliang Liu;Hui Shi;Jing Luo

{"title":"Demand Response Management with Latency Difference in Distributed Wireless Network","authors":"Qingfeng Ding;Qianliang Liu;Hui Shi;Jing Luo","doi":"10.17775/CSEEJPES.2022.07590","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2022.07590","url":null,"abstract":"The performance of smart grid under the demand response (DR) control depends on the behavior of its network, which involves differences for multi-category DRs. In this paper, a distributed wireless network (DWN) is proposed for the demand transmission under smart grid, where all DR projects are divided into the emergency DR and the general DR by the latency difference. In the proposed DWN, a pseudo-double-hop transmission architecture is designed to handle the emergency DR locally and general DRs centrally, respectively. Furthermore, an analysis framework based on communication and computing performance is used to certify the reliability and effectiveness of DWN. Based on the framework, the closed-form expressions are derived for the asymptotic outage and computing probability, the results of which are used to investigate the performance of emergency and general DRs. Numerical results validate the reliability and effectiveness of the proposed network and reveal the effect of various parameters on the performance of DR. Notably, the local solution can handle, in terms of the emergency DR, the emergency tasks in time, and the centralized processing solution can update and process the general DR.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"11 3","pages":"1312-1321"},"PeriodicalIF":6.9,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144243748","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

Preventive-Corrective Control for Static Voltage Stability Under Multiple $N-1$ Contingencies Considering Wind Power Uncertainty 考虑风电不确定性的多$N-1$突发事件下静态电压稳定的预防纠偏控制

IF 5.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2023.00310

Yuerong Yang;Shunjiang Lin;Qiong Wang;Mingbo Liu;Qifeng Li

{"title":"Preventive-Corrective Control for Static Voltage Stability Under Multiple $N-1$ Contingencies Considering Wind Power Uncertainty","authors":"Yuerong Yang;Shunjiang Lin;Qiong Wang;Mingbo Liu;Qifeng Li","doi":"10.17775/CSEEJPES.2023.00310","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2023.00310","url":null,"abstract":"An optimal preventive-corrective control model for static voltage stability under multiple <tex>$N-1$</tex> contingencies considering the wind power uncertainty is established in this paper. The objective is to minimize the control variable adjustment cost including the load shedding cost of each contingency. The chance constraints of the static voltage stability margins (SVSMs) in the normal operation state and after each <tex>$N-1$</tex> contingency are included. The approximate functions between the probability density functions (PDFs) of SVSMs and load shedding quantity with respect to preventive control variables are obtained to transform the expectation of load shedding quantity and the SVSM chance constraints into deterministic expressions. An approximate sequential convex quadratically constrained quadratic programming iteration method is proposed to solve the optimal control model. In each iteration, the approximate expressions and range are determined by the generated data samples. Moreover, a fast approximation calculation method of second-order matrices is proposed. By the naive Bayes classifier, the most severe <tex>$N-1$</tex> contingencies are selected to replace all the contingencies to be added to the optimization model to improve the computational efficiency. Case studies on the IEEE-39 bus system and an actual provincial power grid demonstrate the effectiveness and efficiency of the proposed method.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"11 4","pages":"1466-1480"},"PeriodicalIF":5.9,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520197","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831811","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

Multiplexed and Paralleled PFC Rectifier and Its Control 多路并联PFC整流器及其控制

IF 6.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2023.02900

Lunquan Li;Qianhong Chen;Zhiwang Zhan;Bin Liu

引用次数: 0

Terahertz Frequency Domain Response for Insulation State Assessment of Vehicle Cable Terminal Under Electro-Thermal Aging 电热老化下车载电缆终端绝缘状态评估的太赫兹频域响应

IF 6.9 2区工程技术

CSEE Journal of Power and Energy Systems Pub Date : 2024-03-03 DOI: 10.17775/CSEEJPES.2023.02300

Binglei Cao;Shuaibing Li;Yi Cui;Dong Yang;Yongqiang Kang;Baopeng Lu;Guangning Wu

{"title":"Terahertz Frequency Domain Response for Insulation State Assessment of Vehicle Cable Terminal Under Electro-Thermal Aging","authors":"Binglei Cao;Shuaibing Li;Yi Cui;Dong Yang;Yongqiang Kang;Baopeng Lu;Guangning Wu","doi":"10.17775/CSEEJPES.2023.02300","DOIUrl":"https://doi.org/10.17775/CSEEJPES.2023.02300","url":null,"abstract":"To accurately diagnose the aging condition of the vehicle-mounted high-voltage cable terminals under the combined electro-thermal stress, this paper proposes a terahertz frequency spectrum technology-based method. First, an electro-thermal aging platform is established in the laboratory to obtain the test samples of ethylene-propylene rubber (EPR) cable terminals with different aging gradients. Then, the degree of electro-thermal aging is characterized by frequency spectrum, absorption coefficient spectrum, absorption spectrum, refractive index and dielectric constant in the terahertz domain. Moreover, the micro-morphology and micro-area structure of the test samples under different aging gradients are also observed by scanning electron microscopy, and both the material and chemical properties are analyzed. The findings demonstrate that terahertz frequency spectra offer significant benefits in non-destructively detecting and identifying the insulation condition of vehicle cable terminals during electro-thermal aging. Laboratory tests confirm the feasibility of utilizing the terahertz frequency spectrum to assess the insulation aging state of EPR cable terminals, making it potentially applicable for on-site purposes.","PeriodicalId":10729,"journal":{"name":"CSEE Journal of Power and Energy Systems","volume":"11 1","pages":"458-467"},"PeriodicalIF":6.9,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10520190","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403863","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