Analysis of flux control for the IPMSM used in the power generation

This paper presents a detail analysis of flux control for high performance and high speed operation of an interior permanent magnet synchronous generator (IPMSG) used in the power generation. In this work, an algorithm for flux control is proposed to achieve optimum efficiency over the IPMSG. When the IPMSM worked as a generator, is almost in the constant power region meanwhile the flux control for the IPMSG is significant. The operating speed limit of the generator can be expanded efficiently with the proposed field control. The complete drive incorporating proposed flux control is successfully implemented in real time for a laboratory 3 KW IPMSG and a 200 KW co-windings IPMSG test platform used in wind power generation using digital signal processor (DSP) TMS320F2812. The performance of the proposed flux control technique tested both in simulation and experiment at different operating conditions. A performance comparison of a drive with proposed field control and a drive without field control is also provided. The effectiveness of the proposed flux control algorithm is evidenced by the test results.