一种增强型自适应滤波器控制的电池储能-风力驱动双馈感应发电机微电网

This article confers operation and control of grid interactive microgrid (MG), which is suitable for windy remote areas. This MG possess appreciative wind energy generation capability but erratic grid connection. This MG operable in grid-tied mode as well as in islanded mode (IM), consists of wind powered doubly fed induction generator (DFIG) battery energy storage. In IM, to ensure a self-sufficient MG for uninterrupted power flow to loads, diesel generator (DG) set is used. DFIG unit operates in peak power point tracking zone to take maximum benefit of renewable energy, whereas DG set operates in fuel economic zone to ensure optimal usage of conventional energy resources. Loads are continuously powered in all operating states, whereas synchronizations from one state to another are seamless. Synchronizations are executed by using three solid state power electronics switches. However, since such wind generator based microgrids are installed in remote areas, power quality issue is raised in the grid. Therefore, this work proposes an updated exponential hyperbolic cosine robust adaptive filter-based control, which is implemented for grid forming converter of MG. This ensures power interaction between MG and grid/DG with total harmonic distortion less than 2%. For reliable operation of MG, synchronizations between several states are crucial, which require proper estimation of frequency and phase, thereby type-2 forward compensation synchronous reference frame phase locked loop is utilized, which ensures fast tracking. The system is simulated in Simulink/MATLAB platform whereas obtained results are validated in OPAL-RT test bench.