摘要
分析了仅由1套逆变器构成的并联型综合电能质量调节器的结构特点和控制目标,提出了一种基于状态变量反馈的系统控制方法,通过控制电源电流来间接控制负载电压,很好地解决了常规比例–积分控制时电源和负载间的连接电感所导致的供电电流直流暂态分量不衰减的问题。运用Matlab分别对系统接线性和非线性负载的情况进行仿真,验证了该控制方法的正确性和有效性。
The structural features and control objective of the shunt unified power quality conditioner constituted by one inverter only are analyzed. A state variable feedback based system control approach, which indirectly controls load voltage by means of controlling the supply current, is proposed, thus the problem that the undamped DC transient component of supply current, which is caused by the linking inductance between power supply and power loads under PI control mode, is solved. Using Matlab software the situations are simulated while the system is connected with linear load and nonlinear load respectively, thus the correctness and effectiveness of the proposed control approach are validated.
出处
《电网技术》
EI
CSCD
北大核心
2008年第5期70-74,共5页
Power System Technology
