摘要
针对功率开关管导致的非线性问题,该文提出了状态空间平均法建立逆变器系统模型的方法。根据实际要求设计元器件参数,计算补偿前逆变器开环特性静动态性能,选取带输出电流前馈的双环PI控制结构。采用极点配置控制器的设计方法,结合实际情况选取合理的闭环参数。加入控制器后的系统具有稳态特性良好、动态响应速度快、鲁棒性强、电压畸变小等特点。Matlab/Simulink仿真验证该建模与控制策略设计方法是可行有效的。
According to the nonlinear problem caused by the power electronics,a modeling and control of inverter system based on the state space average method was studied. Chose the double loop PI control structure with output current feed forward by designed the parameters of the components ,calculated the static and dynamic performance of the inverter before compensation,chose the reasonable parameters of closed-loop based on the actual requirements using the pole configuration were described. The basic characteristics of the system after adding controller was excellent static and dynamic performance,good robust and low voltage distortion. The results of the Matlab/Simulink verified the feasible and effective of modeling and design method.
出处
《自动化与仪表》
2015年第8期58-63,共6页
Automation & Instrumentation
关键词
状态空间平均法
逆变器
控制器设计
静动态性能
state space average method
inverter
controller design
static and dynamic performance
