支持相位补偿的虚拟同步发电机瞬间冲击电流控制  

Instantaneous impulse current control of virtual synchronous generators supporting phase compensation

作　　者：陈洁[1] 王超[2] 程斌 王勇 CHEN Jie;WANG Chao;CHENG Bin;WANG Yong(Weinan Meteorological Bureau,Weinan Shaanxi 714026,China;Shaanxi Railway Institute,Weinan Shaanxi 714099,China;Fujian Meteorological Bureau,Xi’an 714000,China;Weinan Fengyun lightning protection technology Co.,Ltd.,Weinan Shaanxi 714026,China)

机构地区：[1]渭南市气象局,陕西渭南714026 [2]陕西铁路工程职业技术学院,陕西渭南714099 [3]陕西省气象局,西安710014 [4]渭南风云防雷技术有限公司,陕西渭南714000

出　　处：《自动化与仪器仪表》2024年第6期282-286,共5页Automation & Instrumentation

基　　金：陕西省气象局科学技术研究项目“雷电灾害风险区划方法研究及其在陕西省的应用”(2017M-22);陕西铁路工程职业技术学院科学研究基金项目“兰郑高铁陕西段沿线雷电活动及对铁路机电设备影响研究”(KY2020-2015)。

摘　　要：为减小瞬间冲击电流,提高稳定性,研究支持相位补偿的虚拟同步发电机瞬间冲击电流控制方法。通过设计双闭环控制器,降低瞬间冲击电流对虚拟同步发电机的影响;其中,利用电流谐振内环控制器,抑制瞬间冲击电流,以直接补偿电流谐振内环控制器参考相位角的方式,提升瞬间冲击电流控制效果;通过有功-频率控制方程与无功-电压控制方程,设计电压外环控制器,用于确保虚拟同步发电机时与电网电压保持同步,进一步抑制瞬间冲击电流。实验证明:该方法可有效补偿电流谐振内环控制器参考相位角;该方法可有效控制虚拟同步发电机瞬间冲击电流,经过控制后,虚拟同步发电机的有功、无功功率可以精准跟踪指令值变化,且受到的冲击较小;同时,可以有效降低电压波动幅度,提升稳定性。In order to reduce the instantaneous impulse current and improve the stability of the grid connection,the control method of instantaneous impulse current of virtual synchronous generator with phase compensation is studied.A double closed-loop controller is designed to reduce the influence of instantaneous impulse current on the grid connection of virtual synchronous generator.The current resonator inner loop controller is used to suppress the instant impulse current and directly compensate the reference phase Angle of the current resonator inner loop controller to improve the control effect of the instant impulse current.Based on the active power frequency and reactive power voltage governing equations,the voltage outer loop controller is designed to ensure that the virtual synchronous generator is synchronized with the grid voltage and further suppress the impulse current at the moment of grid connection.Experimental results show that the method can effectively compensate the reference phase Angle of the current resonant inner loop controller.This method can effectively control the instantaneous impulse current of the virtual synchronous generator connected to the grid.After control,the active and reactive power of the virtual synchronous generator connected to the grid can accurately track the change of the command value,and the impact is small.At the same time,it can effectively reduce the amplitude of voltage fluctuation and improve the stability of grid connection.

关 键 词：相位补偿 虚拟同步发电机 瞬间冲击电流 双闭环控制器 电流谐振内环 电压外环 

分 类 号：TM721[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]