阻抗测量的扰动电压自适应控制策略  

Adaptive Control Strategy of Disturbance Voltage for Impedance Measurement

作　　者：赵静波 周前 杨文莉 马俊鹏 ZHAO Jingbo;ZHOU Qian;YANG Wenli;MA Junpeng(Electric Power Research Institute,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211103,China;College of Electrical Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]国网江苏省电力有限公司电力科学研究院,南京211103 [2]四川大学电气工程学院,成都610065

出　　处：《电源学报》2025年第1期111-119,共9页Journal of Power Supply

基　　金：国网江苏省电力有限公司科技资助项目(J2021009)。

摘　　要：阻抗实测的测量过程中由于待测系统阻抗值变化范围大,无法预先评估注入扰动幅值的大小,对扰动能量自适应调整十分必要。以串联注入扰动电压的阻抗实测装置为研究对象,提出基于扰动电流反馈的扰动电压自适应调整策略。通过实时检测响应的扰动电流幅值来调整扰动电压幅值,实现了扰动能量自适应调整,扰动电压及响应的扰动电流均控制在待测系统稳态点的10%以内,半实物实时仿真验证了所提控制策略的有效性。In the impedance measurement process,since the inverter impedance varied widely,the magnitude of injection disturbance cannot be evaluated in advance.Therefore,it is necessary to adjust the disturbance energy adaptively.The impedance measurement device of disturbance voltage injected in series is taken as the research object,and an adaptive adjustment strategy of disturbance voltage based on disturbance current feedback is proposed.The magnitude of disturbance voltage is adjusted by detecting the responding disturbance current in real time,thus realizing the adaptive adjustment of disturbance energy.Both the disturbance voltage and responding disturbance current are controlled to be within 10%of the steady-state point of the system under test.The effectiveness of the proposed control strategy was verified by hardware-in-the-loop simulations in real time.

关 键 词：宽频振荡 阻抗测量 小扰动信号 自适应控制 

分 类 号：TM46[电气工程—电器]