摘要
针对电网电压定向方法易受电网电压畸变的影响,采用虚拟电网磁链获取电网电压角度,省去了电网电压传感器。同时采用一种固定开关频率的直接功率控制方法,实现有功功率和无功功率的单独调节,简单易行。最后在Matlab/Simulink平台上搭建了网侧仿真模型。仿真结果表明,该控制方法可实现有功功率、无功功率的动态解耦以及单位功率因数运行,达到了对系统的控制目标。
The orientation method of the grid voltage is easily affected by distortion of the grid voltage, thus by adopting virtual grid flux the angle of grid voltage is obtained eliminating the sensor of grid voltage. In addition, the direct power control method using fixed switching frequency is used to implement active power and reactive power being adjusted individually. The grid side simulation model is established on Matlab/Simulink platform. The simulation result shows that this control method realizes dynamic decoupling for active power and reactive power, and the unity power factor operation can be achieved to meet the control target of the system.
出处
《自动化仪表》
CAS
北大核心
2013年第4期34-37,共4页
Process Automation Instrumentation
