| 引用本文: | 陈中,唐浩然,严绍兴,周涛.基于时滞灵敏度和多目标优化的广域电力系统稳定器参数设计[J].电力自动化设备,2019,39(10): |
| CHEN Zhong,TANG Haoran,YAN Shaoxing,ZHOU Tao.Parameter design of wide area power system stabilizer based on time delay sensitivity and multi-objective optimization[J].Electric Power Automation Equipment,2019,39(10): |
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| 摘要: |
| 针对广域电力系统稳定器应用过程中信号具有时滞的问题，基于Pade近似与阻尼转矩分析法推导得到一个特征根相对于时滞的灵敏度指标，进而采用多目标粒子群优化算法求解综合考虑该灵敏度指标与系统阻尼的广域电力系统稳定器参数优化问题，实现对时滞具有较好鲁棒特性的广域电力系统稳定器参数设计。在搭建的信息电力融合系统平台中以2区4机系统为例，研究了不同时滞下控制器的控制效果。时域仿真结果表明，所提控制器参数设计方法对广域信号时滞的波动有较好的鲁棒特性，当广域测量系统的传输时滞在一定的范围内变化时，控制器依然能够有效地抑制系统区域间的低频振荡，为广域电力系统稳定器的参数整定提供了一种新的思路。 |
| 关键词: 广域电力系统稳定器 Pade近似 阻尼转矩分析法 时滞 多目标优化 参数设计 |
| DOI：10.16081/j.epae.201910002 |
| 分类号:TM712 |
| 基金项目:国家重点研发计划资助项目(2016YFB0900602)；国家自然科学基金资助项目(51277029)；国家电网公司总部科技项目(SGTYHT/17-JS-199)；江苏省智能电网技术与装备重点实验室课题项目 |
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| Parameter design of wide area power system stabilizer based on time delay sensitivity and multi-objective optimization |
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CHEN Zhong1,2, TANG Haoran1,2, YAN Shaoxing3, ZHOU Tao1,2
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1.School of Electrical Engineering, Southeast University, Nanjing 210096, China;2.Jiangsu Key Laboratory of Smart Grid Technology and Equipment, Nanjing 210096, China;3.Taizhou Power Supply Company of State Grid Jiangsu Electric Power Co.,Ltd.,Taizhou 225300, China
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| Abstract: |
| Aiming at the time delay problem of signals in the application progress of WPSS(Wide area Power System Stabilizer),a sensitivity index of eigenvalue to time delay is derived based on the Pade approximation and damping torque analysis method, then the multi-objective particle swarm optimization algorithm is applied to solve the parameter optimization problem of WPSS considering the sensitivity index and system damping comprehensively, then the parameter design of WPSS with good robustness for time delay is realized. In the established CPPS(Cyber Physical Power System) platform, the two-area four-generator system is taken as the example to study the control effect of the controller with different time delays. Time-domain simulative results show that the proposed parameter design method of controller has good robustness to the time delay fluctuation of wide area signal. When the transmission time delay of the wide area measurement system changes in a certain range, the controller can still suppress the inter-area low-frequency oscillation effectively, which provides a novel idea for the parameter design of the WPSS. |
| Key words: wide area power system stabilizer Pade approximation damping torque analysis method time delay multi-objective optimization parameter design |
