摘要
逆变器控制策略的无缝平滑切换是逆变器稳定可靠运行的关键。针对逆变器电压型控制策略切换过程中存在的电压突变问题,提出了一种逆变器电压型控制策略切换方法,通过增加补偿量的方式使切换瞬间两个控制策略产生的三相电压幅值、角速度和相位参考一致,进一步加入数值缓冲器防止补偿量去除时三相电压幅值、角速度和相位参考的跳变,从而保证控制策略的平滑切换。最后,利用MATLAB/Simulink仿真软件验证了所提逆变器电压型控制策略切换方法的有效性。
The seamless smooth switching of the inverter control strategy was the key to the stable and reliable operation of the inverter. Aiming at the sudden change of voltage in the switching process of voltage control strategy of inverters,a switching method for inverter with voltage type control strategy was proposed. By increasing the compensation amount,the three-phase voltage amplitude,angular velocity and phase reference of the two control strategies at the switching moment were consistent. Furthermore,a numerical buffer is added to prevent the jump of three-phase voltage amplitude,angular velocity and phase reference when the compensation is removed,so as to ensure the smooth switching of the control strategy. Finally,the effectiveness of the proposed switching method for inverter with voltage type control strategy was verified by using MATLAB/Simulink simulation software.
作者
黄家豪
王金全
黄克峰
陈静静
Huang Jiahao;Wang Jinquan;Huang Kefeng;Chen Jingjing(College of Defense Engineering,PLA Army Engineering University,Nanjing 210007,China)
出处
《信息技术与网络安全》
2019年第1期87-89,共3页
Information Technology and Network Security
关键词
逆变器
无缝切换
电压型控制
补偿量
数值缓冲器
inverter
seamless switching
voltage type control
compensation
numerical buffer
作者简介
黄家豪(1994-),男,硕士研究生,主要研究方向:新能源发电与智能微电网;王金全(1964-),男,博士,博士生导师,主要研究方向:电力系统稳定与控制、电力电子技术在微电网中的应用等;黄克峰(1986-),男,博士,讲师,主要研究方向:电机与电力系统的分析和保护。
