薄变换器在风力发电并网中的应用

Application of Thin AC Converter in the Wind Power Parelling in Smart Grid

分析比较了风力发电机的几种并网方式,并对永磁同步发电机(PMSG)的并网进行了详细分析,在电网与风力发电装置间设计了一个薄AC变换器(TACC),使智能电网的装置智能化、可控化等。在Matlab 9.0/Simulink环境下建立了有TACC和无TACC的情况下电网输出电压的仿真模型,并分析两种情况下的工作原理。经研究表明TACC可用于大功率、大电压的环境下,可将分流无功补偿转变成STATCOM降低损耗。

This paper analyzes and compares several wind power generators network modes and deeply analyzes the permanent magnet synchronous generators（PMSG） parelling in smart grid.A thin AC converter（TACC） between smart grid and wind power devices is designed.It is a topology circuit of the AC converter which makes devices in smart grid more intelligent and controllable.The different states of TACC and the non-TACC in simulation model of Matlab 9.0/Simulink are built and the principle of two states is analyzed.The study shows a TACC can be scalable to high power levels and high voltage environment.It can convert shunt VAR capacitors into STATCOM to reduce losses.A new power electronic devices TACC is used to make network equipment more reliable and intelligent compare with the former device.