混合控制的微能网无功补偿和谐波消除

Hybrid Control of Reactive Power Compensation and Harmonic Elimination in Micro Energy Network

在微能网系统中,由于负载的非单一性和负荷的时变性,系统中有大量的谐波和无功功率的损耗,使得系统能有效地治理谐波和对无功功率进行有效的分配基于上述背景,提出了采用电压模块和电流模块的控制方法。其中,电压控制模块能很好地对有功功率进行调整,并对电压、频率进行误差调整;电流控制模块相比电压控制模块,能很好地消除谐波。该控制方法基于一种分散控制方案,可对信号进行局部测量,消除了系统对通信链路的依靠,使得系统更简单、可靠。最后,通过Matlab仿真软件证明了所提出的控制方法的正确性、合理性。

In the micro energy network system,because of the non singleness of load and the time-varying of load,there are a lot of losses of harmonic and reactive power in the system,which makes the system can effectively control harmonic and distribute reactive power.Based on the above background,this paper proposes the control method of voltage and current mcjdule(VCM/CCM),in which the voltage control module can adjust the active power well,and the current control can not only eliminate the harmonic hut also distribute the reactive power well.The control method is based on a decentralized control scheme,which is to measure the signal locally,thus eliminating the dependence of the system on the communication link,making the system simpler and more reliable.Finally,the currectness and rationality of the proposed control method are verified by Matlab simulation software.