A multi-port converter and a new energy collection and sending-out system

Abstract

The application provides a multi-port converter and a new energy collection and sending system. The multi-port converter comprises a first AC conversion unit, a second AC conversion unit, a first auxiliary unit and a second auxiliary unit. The technical scheme provided by the application can realize flexible interconnection between different frequency AC systems and a DC system through a first AC port, a second AC port and a DC port, realize direct power exchange and flexible regulation and control, complete peak-valley load mutual aid and new energy consumption, and transport surplus wind power and photovoltaic power to an area with tight power supply, thereby improving the utilization rate of new energy. The multi-port converter provided by the application can provide support for stable operation of multi-frequency AC systems, provide a basis for cross-regional power exchange and energy optimization scheduling, and further improve the renewable energy consumption level.