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重复控制下指定次谐波电流控制方法

重复控制下指定次谐波电流控制方法

Control Method for Selective Harmonic Current Under Repetitive Control

Control Method for Selective Harmonic Current Under Repetitive Control

doi:
10.3969/j.issn.1003-8930.2018.01.021
摘要:
随着电网负载的多样性,对补偿装置提出了更高的要求,研发一种功能完备、性能优良的补偿装置是十分必要的.本文在传统静止同步补偿器无功补偿控制策略基础上,增加了谐波抑制和不平衡治理功能.指定次谐波的补偿精度和动态响应取决于电流调节器的性能,本文以多同步旋转坐标系为基础,提出一种新的控制方法,该控制方法将重复控制器通过一个相加环节叠加到PI控制器中形成复合电流调节器.复合电流调节器在实现谐波电流独立控制的同时,又提高了整个系统的稳态精度.仿真结果验证了新的控制方法的优越性.
Abstract:
Along with the diversity of power loads,higher requirements for compensation devices have been proposed, thus it is necessary to develop a compensation device with perfect function and good performance. On the basis of reac-tive power compensation control strategy for a traditional static synchronous compensator(STATCOM),suppression of harmonics and control of unbalance are added . The compensation accuracy and dynamic response of selective harmon-ics depend on the performance of a current regulator. In this paper,a new control method is proposed based on multiple synchronous rotating frames,in which a repetitive controller is added to a PI controller through an additive link. In this way,a composite current regulator is formed,which realizes independent control of harmonic current and improves the steady-state accuracy of the system at the same time. Simulation results verify the superiority of the new control method.
作者 蒋美娜 马晓春 孙占龙 谢新航
Author: JIANG Meina MA Xiaochun SUN Zhanlong XIE Xinhang
作者单位 北京交通大学电气工程学院,北京,100044
期 刊: 电力系统及其自动化学报 ISTIC EI SCI PKU CSSCI
Journal: Proceedings of the CSU-EPSA
年,卷(期) 2018, 30(1)
分类号 TM761
关键词: 静止同步补偿器 知识脉络 指定次谐波补偿 知识脉络 多同步旋转坐标系 知识脉络 重复控制 知识脉络 复合电流调节器 知识脉络
Keywords: static synchronous compensator(STATCOM) selective harmonic compensation multiple synchronous ro-tating frames repetitive control composite current regulator
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