暂态稳定约束下并网逆变器控制参数可行域优化设计方法  

Feasible parameters domain optimization design method for grid-connected inverter under transient stability constraints

作　　者：张梓钦 陈仲伟 朱东海 邹旭东[5] ZHANG Ziqin;CHEN Zhongwei;ZHU Donghai;ZOU Xudong(Limited Economic and Technical Research Institute,State Crid Hunan Electric Power Company,Changsha 410004,China;Hunan Economy Institute Electric Power Design Co.Ltd.,Changsha 410004,China;Hunan Key Laboratory of Energy Internet Supply-Demand and Operation,State Grid Hunan Electric Power Company,Changsha 410004,China;Hunan Engineering Research Center of Large-scale Battery Energy Storage Application Technology,Changsha 410004,China;School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]国网湖南省电力有限公司经济技术研究院,湖南长沙410004 [2]湖南经研电力设计有限公司,湖南长沙410004 [3]国网湖南省电力有限公司能源互联网供需运营湖南省重点实验室,湖南长沙410004 [4]规模化电池储能应用技术湖南省工程研究中心,湖南长沙410004 [5]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2024年第7期52-59,68,共9页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：湖南经研电力设计有限公司科技资助项目(HEID2023002);湖南省科技创新平台与人才计划资助项目(2019TP1053).

摘　　要：针对弱电网下并网逆变器的锁相环及电流环参数设计不当极易引起稳定性问题,提出了一种计及并网逆变器暂态稳定约束的控制参数可行域优化设计方法.首先,采用D分割法获得满足幅值裕度、相位裕度和带宽等多重约束条件下并网逆变器锁相环和电流环的控制参数可行域;然后,结合并网逆变器奇异摄动模型中快、慢子系统暂态稳定约束条件进一步优化上述参数可行域;最后,基于所设计的控制参数,通过SpaceR硬件在环实验平台进行了验证,结果表明该方法所设计出的参数能够同时保证并网逆变器的控制性能与暂态稳定性.Aiming at the stability problems caused by improper design of the phase-locked loop as well as current loop parameters of a grid-connected inverter under weak grid,a feasible domain optimization design method for control parameters that takes transient stability constraints of grid-connected inverter into account was proposed.Firstly,the feasible domains of the parameters of the phase-locked loop and current loop were obtained by the D-partition method under the constraints of amplitude margin,phase margin and bandwidth.Then,the feasible parameters domains were further optimized by the transient stability constraints of the fast and slow subsystems in singular perturbation model of grid-connected inverter.Finally,based on the designed control parameters,a validation was carried out by SpaceR hardware-in-the-loop experimental platform,and the results show that the parameters designed by this method can guarantee the control performance and transient stability of the grid-connected inverter at the same time.

关 键 词：弱电网 并网逆变器 奇异摄动模型 暂态稳定 参数可行域优化设计 D分割法 

分 类 号：TM46[电气工程—电器]