Wind-Solar-Storage Hybrid Micro grid Control Strategy Based on SVPWM Converter

Abstract

Distributed generator (DG) is an increasing interest in using not only to inject power into the grid, but also to enhance the power quality. In this paper, a space voltage pulse width modulation (SVPWM) control method and current double closed loop control strategy is proposed for DG converter in a wind-solar-storage hybrid micro grid system. This method is based on the proper topology of three-phase voltage controller. Power fluctuation is existed in among wind system, photovoltaic (PV) system and both side of the storage unit system when the wind-solar-storage hybrid micro grid is disconnected to the grid because of troubleshooting or repairing of hybrid micro grid system, it can make a big shock, it also affects the normal work of the other DG and power quality of important load, and it even makes the whole system paralysis seriously. So, the topological structure of DG controller and control method are discussed in detail and simulation results are presented. The results demonstrate the effectiveness of the proposed method in the wind-solar-storage hybrid micro grid.

A Review on Optimization and Control Methods Used to Provide Transient Stability in Microgrids

“…As seen in Figure 10, P 1 and P 2 are active power in the traditional droop control strategy, P 1-2 and P 2-2 are active power in the proposed control strategy, Q 1 and Q 2 are reactive power in the traditional droop control strategy and Q 1-2 and Q 2-2 are reactive power in the proposed control strategy. In Figure 9, the system achieves a stable state condition after a shorter time (around 2 s) compared to the traditional control method, and subsequently shares its power [79].…”