| 引用本文: | 郑峰,黄云聪,梁宁,林燕贞,杨帆,刘宝谨.计及多元因素的故障电流受控型限流器优化配置方法[J].电力自动化设备,2025,45(5):168-176. |
| ZHENG Feng,HUANG Yuncong,LIANG Ning,LIN Yanzhen,YANG Fan,LIU Baojin.Optimized configuration method for fault current-controlled limiter considering multiple factors[J].Electric Power Automation Equipment,2025,45(5):168-176. |
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| 摘要: |
| 为进一步提高电力电子型限流器的经济性与限流效果，提出一种计及多元因素的故障电流受控型限流器(FCCL)的优化配置方法。对FCCL的故障过程展开分析，推导出计及FCCL的线路故障电流与换流站极间电压表达式。将老化因数纳入改进型限流器寿命预测模型，相较传统模型寿命预测值减少30% 以上，更加精确合理。提出自变量简化策略，解决了求解过程中不同类型限流元件成本与冲击电流限制效果不平衡的问题，简化了求解过程。以成本、冲击电流限制效果、限流器预测寿命为目标函数，通过改进型多目标灰狼优化算法求得Pareto最优解集，求解效率提升26 % 以上。在9节点直流系统中进行优化配置算例分析，结果表明所提方法具备较高的求解效率与准确率。 |
| 关键词: 电流受控型限流器 改进型多目标灰狼优化算法 优化配置 故障冲击电流 直流配电网 |
| DOI：10.16081/j.epae.202503007 |
| 分类号:TM721.1 |
| 基金项目:国家自然科学基金资助项目(52167010)；福建省自然科学基金资助项目(2022J05026) |
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| Optimized configuration method for fault current-controlled limiter considering multiple factors |
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ZHENG Feng1, HUANG Yuncong1, LIANG Ning2, LIN Yanzhen3, YANG Fan1, LIU Baojin1
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1.School of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China;2.Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming 650500, China;3.Fuzhou Power Supply Company of State Grid Fujian Electric Power Company, Fuzhou 350116, China
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| Abstract: |
| To further enhance the economic efficiency and current-limiting performance of power-electronic-based current limiters, an optimized configuration method for fault current-controlled limiter(FCCL) considering multiple factors is proposed. The fault process of FCCL is analyzed, and expressions for the fault current in the line and the voltage between converter station poles, considering the FCCL, are derived. By incorporating the aging factor into improved current limiter lifespan prediction model, the predicted lifespan is reduced by over 30% compared to traditional models, making the estimation more accurate and reasonable. The simplification strategy for independent variables is introduced, addressing the imbalance between cost of different types of current-limiting elements and impulse current limitation performance, which simplifies the solving process. Taking the cost, impulse current limitation performance and current limiter predicted lifespan as the objective functions, the Pareto-optimal solution set is obtained by the improved multi-objective grey wolf optimization algorithm, and the solving efficiency is improved by more than 26 %. An optimization case study is conducted in a 9-node DC system, the results show that the proposed method provides high solving efficiency and accuracy. |
| Key words: fault current-controlled limiter improved multi-objective grey wolf optimization algorithm optimized configuration fault impulse current DC distribution network |
