| 引用本文: | 魏伟,王盼宝,孙红梅,杨景刚,苏伟,王卫,徐殿国.考虑多节点条件约束的柔直系统故障限流器与断路器优化配置方法[J].电力自动化设备,2021,41(5): |
| WEI Wei,WANG Panbao,SUN Hongmei,YANG Jinggang,SU Wei,WANG Wei,XU Dianguo.Optimal configuration method of fault current limiter and circuit breaker in flexible DC system considering multi-node condition constraint[J].Electric Power Automation Equipment,2021,41(5): |
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| 摘要: |
| 首先建立了适用于多节点柔直系统的潮流及故障电流的数值计算优化模型，并在三端仿真系统中验证了所建模型的准确性。随后设置约束条件及目标函数，利用粒子群优化算法建立了多端柔直系统中故障限流器与断路器的优化配置数学模型。在3节点环网中进行优化求解，并将结果配置到仿真模型检验其限流效果，验证了所提优化配置方法的准确性。最后通过所提多目标粒子群优化算法对11节点柔直系统进行故障限流器与断路器配置的优化求解，并将所得结果与多目标遗传算法进行对比。结果表明，所提优化配置方法具有较高的普适性，可实现多节点柔直系统中故障限流器与断路器的低成本配置。 |
| 关键词: 柔直系统 潮流计算 故障限流器 多目标粒子群优化 优化 |
| DOI：10.16081/j.epae.202105017 |
| 分类号:TM771 |
| 基金项目:国家重点研发计划项目(2018YFB0904700)；国家电网公司科技项目(SGJS0000YJJS1801250) |
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| Optimal configuration method of fault current limiter and circuit breaker in flexible DC system considering multi-node condition constraint |
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WEI Wei1, WANG Panbao1, SUN Hongmei1, YANG Jinggang2, SU Wei2, WANG Wei1, XU Dianguo1
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1.School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China;2.Electric Power Research Institute of State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211103, China
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| Abstract: |
| Firstly, the numerical calculation optimization model of power flow and fault current suitable for multi-node flexible DC system is established, and its accuracy is verified in the three-node simulation model. Subsequently, the constraints and objective function are set up, the PSO(Particle Swarm Optimization) algorithm is used to establish the mathematical model of optimal configuration of fault current limiter and circuit breaker in multi-node flexible DC system. Then the optimization solution is carried out in a three-node ring network, and the results are configured to the simulation model to test its current limiting effect, and the accuracy of the proposed optimized configuration method is verified. Finally, the optimal configuration of fault current limiter and circuit breaker for a 11-node flexible DC system is carried out by the proposed multi-objective PSO algorithm, and the results are compared with the results of multi-objective genetic algorithm. The results show that the proposed optimal configuration method has high universality and can complete the low cost configuration of fault current limiter and circuit breaker in multi-node flexible DC system. |
| Key words: flexible DC system power flow calculation fault current limiter multi-objective PSO optimization |
