Development of a Wind Interior Permanent-Magnet Synchronous Generator-Based Microgrid and Its Operation Control

Abstract

This paper presents the development of a wind interior permanent-magnet synchronous generator (IPMSG) based DC micro-grid and its operation control. First, the derated characteristics of PMSG systems with various AC/DC converters and operation controls are comparatively analyzed. Then the IPMSG followed by three-phase Vienna switchmode rectifier (SMR) is developed to establish the common DC bus of DC micro-grid. Good developed power and voltage regulation characteristics are achieved via the proposed commutation tuning, robust current and voltage controls. Second, a single-phase three-wire (1P3W) inverter is constructed to serve as the test load. Good AC 220V/110V output voltage waveforms under unknown and nonlinear loads are preserved by the developed robust waveform tracking control scheme. Third, a battery energy storage system (BESS) is established, and the fast energy storage support response is obtained via the proposed droop control approach with adaptive predictive current control method. In addition, a chopped dump load is equipped to enhance the energy balance control flexibility.