Modelling and Coordinated Control of Grid Connected Photovoltaic,Wind Turbine Driven PMSG,and Energy Storage Device for a Hybrid DC/AC Microgrid  

作　　者：Prabhakaran Koothu Kesavan Umashankar Subramaniam Dhafer Jaber Almakhles Sivakumar Selvam 

机构地区：[1]Renewable Energy Laboratory,the Department of Electrical Engineering,Prince Sultan University,Riyadh,11586,Saudi Arabia [2]不详

出　　处：《Protection and Control of Modern Power Systems》2023年第1期180-193,共14页现代电力系统保护与控制（英文）

基　　金：supported by Prince Sultan University,Riyadh,Saudi Arabia,under research grant SEED-2022-CE-95.

摘　　要：In a DC/AC microgrid system,the issues of DC bus voltage regulation and power sharing have been the subject of a significant amount of research.Integra-tion of renewable energy into the grid involves multiple converters and these are vulnerable to perturbations caused by transient events.To enhance the flexibility and controllability of the grid connected converter(GCC),this paper proposes a common DC bus voltage maintenance and power sharing control strategy of a GCC for a DC/AC microgrid.A maximum power point tracking algorithm is employed to enhance the power delivered by the wind turbine and photovoltaic module.The proposed control strategy consists of primary and secondary as-pects.In the primary layer control,the DC bus voltage is regulated by the GCC.In the secondary layer,the DC bus voltage is maintained by the energy storage device.This ensures reliable power for local loads during grid failures,while power injection to the grid is controlled by an en-ergy management algorithm followed by reference gen-eration of inductor current in the GCC.The proposed control strategy operates in different modes of DC voltage regulation,power injection to the grid and a hybrid op-erating mode.It provides wide flexible control and en-sures the reliable operation of the microgrid.The pro-posed and conventional techniques are compared for a 15.8 kW DC/AC microgrid system using the MATLAB/Simulink environment.The simulation results demonstrate the transient behaviour of the system in different operating conditions.The proposed control technique is twice as fast in its transient response and produces less oscillation than the conventional system.Index Terms—Wind energy,photovoltaic energy,DC/AC microgrid,battery energy storage system,co-ordinated control.

关 键 词：Wind energy photovoltaic energy DC/AC microgrid battery energy storage system co-ordinated control 

分 类 号：TM315[电气工程—电机]