Research on the Coordinated Operation Method and Devices of MGP Suitable for Microgrid
In response to the challenges posed by the weak support of power electronics based renewable energy systems and the resulting decrease in the stability of high-proportion renewable energy power grids,the grid integration technology for synchronous motor-generator pair(MGP)is proposed,which enables renewable energy units to integrate into the grid via a real synchronous machine interface and actively provide frequency and voltage support to the grids.While some theoretical and experimental research has been conducted on MGP system,there remains a lack of actual operation experience and complete equipment.Addressing the operational issues of MGP systems integrated into actual microgrids,based on a practical MGP application case,investigates the coordinated operation methods and hardware for MGP.A coordinated control method in microgrids for MGP system is proposed,which can achieve control of power transmission and stable grid integration of MGP.Furthermore,a 10 kW integrated MGP grid integration device is developed,and through experiments,feasibility of the developed device is validated.
high proportion of renewable energy gridphotovoltaic integrationsynchronous motor-generator pairgrid stabilitygrid integration device