Chinese Journal of Electrical Engineering最新文献

Expansion Planning of Photovoltaic-Storage for Distribution Networks Based on Distributionally Robust Optimization 基于分布鲁棒优化的配电网光伏储能扩容规划

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000113

Shuncheng Liu;Yudong Xie;Zhuohan Jiang;Rongyao Chu;Jiayan Liu;Yong Li;Chang Li

{"title":"Expansion Planning of Photovoltaic-Storage for Distribution Networks Based on Distributionally Robust Optimization","authors":"Shuncheng Liu;Yudong Xie;Zhuohan Jiang;Rongyao Chu;Jiayan Liu;Yong Li;Chang Li","doi":"10.23919/CJEE.2025.000113","DOIUrl":"https://doi.org/10.23919/CJEE.2025.000113","url":null,"abstract":"A large proportion of distributed photovoltaic (DPV) and energy storage equipment is gradually being integrated into distribution networks, which increases the complexity of distribution network planning. To achieve flexible and efficient utilization of energy storage and DPV, a distributionally robust optimization expansion planning method for distribution networks based on Kullback-Leibler (KL) divergence is proposed. First, considering the power-flow, radial network, and energy storage constraints, a stochastic optimization planning model is established to minimize the cost of distribution network planning. Subsequently, the fuzzy sets of the DPV output based on KL divergence are embedded into the stochastic optimization planning model. This transforms it into a min-max-min three-level two-stage distributionally robust optimization model that can better balance economy and stability. Finally, the model is solved using the column-and-constraint generation (C&CG) method. The effectiveness and feasibility of the proposed model and algorithm are validated using an improved IEEE 33-node system.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"11 4","pages":"163-175"},"PeriodicalIF":3.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11338765","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915575","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

Analysis of Oscillation Behavior in Asynchronous Motor under External Input Conditions 外部输入条件下异步电动机振荡特性分析

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000167

Yongfeng Fang;Yong Yan;Kong Fah Tee

{"title":"Analysis of Oscillation Behavior in Asynchronous Motor under External Input Conditions","authors":"Yongfeng Fang;Yong Yan;Kong Fah Tee","doi":"10.23919/CJEE.2025.000167","DOIUrl":"https://doi.org/10.23919/CJEE.2025.000167","url":null,"abstract":"Although numerous research advances have been made on asynchronous motors, particularly regarding internal parameters and complex control methods, the causes of the complex dynamic characteristics observed during normal motor operation have received less attention. To avoid abnormal vibration damage to the motor under normal operating conditions, the fluctuating nonlinear dynamic characteristics of the motor by considering variable voltages, frequencies, and changing workloads from both analytical and numerical perspectives are investigated. Motor stability was evaluated using the Lienard-Chipart stability criterion and the Runge-Kutta method. The results indicate that speed fluctuations occur within a specific range of input voltage and angular frequency, and the amplitude fluctuation region expands when load variation is considered. Furthermore, the Poincare map and Lyapunov exponent are adopted to determine the oscillation distribution and dynamic characteristics in a typical region. Specifically, the chaos phenomenon mostly occurred at the edge of the unstable region with an increase in the load. In contrast, periodic conciliation is mainly concentrated within the unstable region.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"11 4","pages":"258-265"},"PeriodicalIF":3.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11322777","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915567","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

Detection of Copper Foreign Matter Defects in Lithium-ion Batteries through Abnormal Characteristic during Formation and Cycling Processes 锂离子电池形成与循环过程中的异常特性检测铜杂质缺陷

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000184

Wei Chen;Xinjie Sun;Xuebing Han;Weixiang Shen;Rui Xiong

{"title":"Detection of Copper Foreign Matter Defects in Lithium-ion Batteries through Abnormal Characteristic during Formation and Cycling Processes","authors":"Wei Chen;Xinjie Sun;Xuebing Han;Weixiang Shen;Rui Xiong","doi":"10.23919/CJEE.2025.000184","DOIUrl":"https://doi.org/10.23919/CJEE.2025.000184","url":null,"abstract":"Manufacturing defects in lithium-ion batteries are a major cause of thermal runaway, with copper foreign matter being one of the most common defects on battery production lines. Such defects can induce internal short circuits (ISCs) that may trigger thermal runaway, posing significant safety risks. The occurrence of ISCs in copper defect batteries is closely associated with the charging stages during formation and cycling processes. However, the abnormal characteristics during these processes are not yet fully understood, and existing methods for detecting copper matter in batteries primarily rely on offline self-discharge measurements. In this study, a detailed analysis of abnormal current and voltage characteristics in copper defect batteries during formation and cycling is conducted, a multi-stage defect detection method is proposed. The proposed method achieves detection rates of 84.2% in the formation stage, 84.2% in the single-cycle stage, and 68.4% in the multi-cycle stage. Using this multi-stage detection method, all copper defect batteries, including those prone to sudden ISCs, are successfully identified. Furthermore, the proposed method requires no complex calculations or additional equipment and relies only on standard current and voltage data collected during formation and cycling. This provides an efficient and practical solution for detecting copper foreign matter defects in lithium-ion batteries, thereby enhancing overall battery safety.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"11 4","pages":"138-150"},"PeriodicalIF":3.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11338769","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915625","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

Active Disturbance Rejection Control Strategy for PMSM Speed Control Based on Improved High-order Extended State Observer 基于改进高阶扩展状态观测器的永磁同步电机速度自抗扰控制策略

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000177

Yuxin Li;Sheng Huang;Meizhou Yang;Wu Liao;Shoudao Huang

{"title":"Active Disturbance Rejection Control Strategy for PMSM Speed Control Based on Improved High-order Extended State Observer","authors":"Yuxin Li;Sheng Huang;Meizhou Yang;Wu Liao;Shoudao Huang","doi":"10.23919/CJEE.2025.000177","DOIUrl":"https://doi.org/10.23919/CJEE.2025.000177","url":null,"abstract":"In order to solve the problem of disturbance rejection and noise suppression of extended state observer (ESO) and high order ESO (HESO), an improved HESO (IHESO) is proposed. First, the ESO and HESO are introduced and their limitations are analyzed. Subsequently, a low-pass filter (LPF) and a new controllable parameter <tex>$k$</tex> are introduced into the IHESO, and its internal structure is reconstructed to ensure the reliability of the structure. The introduction of the LPF enhances the ability of noise suppression of IHESO. The introduction of the parameter, <tex>$k$</tex>, improves the degree of freedom of parameter adjustment, thus helping to separately adjust the disturbance rejection and noise suppression abilities of IHESO. Lastly, the active disturbance rejection control (ADRC) system based on IHESO is verified on an experimental platform. The experimental results show that the IHESO is 5.26% and 31.58% higher than ESO and HESO, respectively, in terms of noise suppression, and 18.29% and 27.79% higher than ESO and HESO, respectively, in terms of disturbance rejection.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"11 4","pages":"112-124"},"PeriodicalIF":3.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11338767","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915573","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

Input Impedance Modeling Method for Dual Active Bridge Converters under Broadband Perturbation 宽带摄动下双有源桥式变换器的输入阻抗建模方法

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000174

Zheng Yuan;Liang Chen;Zemin Pan;Wentai Qu

引用次数: 0

Coordinated Low-voltage Ride-through Control Strategy for Multiport Magnetic Network Energy Routers-based Grid-connection System 基于多端口磁网能量路由器的并网系统协调低压穿越控制策略

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000104

Sayed Abulanwar;Yunqing Hu;Fujin Deng;Yongqing Lv;Liqi Zhong;Abdelhady Ghanem

引用次数: 0

Electromagnetic Performance Improvement of Asymmetric Hybrid PM Motor Considering Various Operating Conditions 考虑不同工况的非对称混合永磁电机电磁性能改进

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000102

Yunyun Chen;Mingjie Lu;Yushan Xu;Xiaoyong Zhu

引用次数: 0

Comparative Study on Schemes for Generating Multiple Frequencies with Single Inverter 单逆变器产生多频率方案的比较研究

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000163

Jie Wu;Shiyun Heng;Jing Yin;Lizhong Bie;Yafei Chen;Jitao Zhang;Zhenjun Wu;Wei Deng

{"title":"Comparative Study on Schemes for Generating Multiple Frequencies with Single Inverter","authors":"Jie Wu;Shiyun Heng;Jing Yin;Lizhong Bie;Yafei Chen;Jitao Zhang;Zhenjun Wu;Wei Deng","doi":"10.23919/CJEE.2025.000163","DOIUrl":"https://doi.org/10.23919/CJEE.2025.000163","url":null,"abstract":"In wireless charging devices, using single inverter to output multiple frequencies can effectively reduce device size and address the frequency incompatibility problem caused by different wireless charging standards. In addition, in the field of consumer electronics, the demand for simultaneous wireless power supply to multiple receivers is becoming increasingly urgent. Receivers that follow different standards require different transmission frequencies, and the generation of multi-frequency signals from single inverter is becoming an indispensable technology. Two methods for generating multi-frequency signals using single inverter, including multi-frequency programmed harmonic modulation (MF-PHM) and multi-frequency multi-amplitude (MFMA) superposition modulation, are investigated. The two methods are compared from the perspectives of system DC voltage utilization rate and inverter output harmonic components. The advantages and disadvantages of each method, together with the underlying mechanisms, are analyzed. Taking the simultaneous generation of 129.5 kHz, 203.5 kHz, and 351.5 kHz by single inverter as an example, a simulation and experimental platform is established to verify the analysis and conclusions. References and guidance for selecting multi-frequency-generation methods using single inverter are provided.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"11 4","pages":"207-218"},"PeriodicalIF":3.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11338766","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915601","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

Coordination of Preventive and Corrective Control for Voltage Stability of Power System 电力系统电压稳定的预防与纠偏控制协调

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000165

Hassan Ebrahimi;Mehdi Gholipour;Amin Khodabakhshian

{"title":"Coordination of Preventive and Corrective Control for Voltage Stability of Power System","authors":"Hassan Ebrahimi;Mehdi Gholipour;Amin Khodabakhshian","doi":"10.23919/CJEE.2025.000165","DOIUrl":"https://doi.org/10.23919/CJEE.2025.000165","url":null,"abstract":"Power systems operate close to their voltage stability margin owing to the high load demand. To prevent voltage collapse, the system operator must be aware of the system functionality and be prepared to implement preventive and corrective control measures. Hence, an appropriate algorithm to determine the time required by the operator is crucial, making it necessary to adopt appropriate models for effective implementation. Based on the load prediction curve for each bus, a new method is proposed to estimate the remaining time before voltage instability. Furthermore, an algorithm is developed to select the most suitable control action (preventive or corrective) based on the remaining time until the power system voltage instability occurs. In this study, two models based on voltage stability-constrained optimal power flow (VSC-OPF) are proposed, incorporating voltage stability index constraints for both control types. The effectiveness of the proposed algorithm and models is assessed using the IEEE 14- and 57-bus power systems, thereby demonstrating promising results.","PeriodicalId":36428,"journal":{"name":"Chinese Journal of Electrical Engineering","volume":"11 4","pages":"195-206"},"PeriodicalIF":3.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11338772","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145915623","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 on Failure of Electrical Connection Components of Transformer Bushing 变压器套管电气连接部件失效研究综述

IF 3.5

Chinese Journal of Electrical Engineering Pub Date : 2025-12-01 DOI: 10.23919/CJEE.2025.000153

Yifan Zhang;Guangning Wu;Kai Liu;Hao Yu;Hao Tang;Xining Li

引用次数: 0