The Study of Optimal Structure and Value of Dump Resistance in Direct-Drive Permanent Magnet Synchronous Generators

Jun Jia^*, Jie Zhao, Dichen Liu, Chen Cheng, Jun Wang, Linge Qi

School of Electrical Engineering, Wuhan University, Wuhan, China.

DOI: 10.4236/jpee.2014.24044                

Abstract

This paper studied the direct-drive permanent magnet synchronous machine (permanent magnet synchronous generator, PMSG) Chopper optimal topology and resistance value. Compared the different Chopper circuit low voltage ride-through capability in the same grid fault conditions in simulation. This paper computes the dump resistance ceiling according to the power electronic devices and over-current capability. Obtaining the dump resistance low limit according to the temperature resistance allows, and calculating the optimal value by drop voltage in the DC-Bus during the fault. The feasibility of the proposed algorithm is verified by simulation results.

Keywords

Permanent Magnetic Synchronous Generator (PMSG); Optimal Resistance; Chopper

Conflicts of Interest

The authors declare no conflicts of interest.

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