针对新能源电力电子并网方式的弱支撑性造成的高比例新能源电网稳定性下降等问题，提出了同步电动机-发电机对(MGP)的并网技术，使得新能源机组以真实的同步机接口并网，并能主动为电网提供频率和电压支撑。尽管目前针对MGP已进行了一些理论和试验研究，但仍缺乏现场运行经验和成套装置。针对MGP系统接入实际微电网的运行问题，基于一个实际的MGP开发应用案例，针对特定的微网结构和运行模式，研究了MGP接入该微电网的协调运行方式和硬件装置，提出了MGP系统在微网中的协调控制方法，实现了对MGP传输功率的控制和稳定并网运行。此外，还开发了一套额定容量为10 kW的一体化MGP并网装置，通过试验验证了所研发的MGP并网装置的可行性。

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.

微网集群省地县三级协同控制示范工程