- https://doi.org/10.1007/978-981-19-1528-4_25
A DC Microgrid System Architecture and Control Strategy for Aerospace Applications
- Jan 1, 2022
- Yinghua Dou +4 more
Abstract Power conditioning unit is the key power supply unit in the spacecraft. The use of grid-connected power supply technology can realize the redundant protection of the power supply system of spacecraft. DC microgrid is an effective architecture that solves the interconnection of multiple DC power supply systems. Droop control is a commonly used control method in DC microgrid. In this paper, a new distributed DC microgrid architecture for aerospace is proposed, and the operation mode and control strategy of proposed DC microgrid system are described in detail. Next, the working principle of the grid-connected controller is introduced. According to the operating characteristics of the mentioned DC microgrid system, the operation status of three working modes of the grid-connected controller is analyzed and control strategy is also designed. At the same time, an adaptive droop control based on PCU bus voltage information is proposed, and the specific control method is explained. Afterwards, stability and simulation analysis are carried out according to the operation mode and control strategy of the microgrid system, and finally an experimental platform was built to verify the proposed design scheme and control strategy.KeywordsPower Conditioning UnitDC microgridAdaptive droop controlSpacecraft power supply system
- # Power Supply System Of Spacecraft
- # DC Microgrid
- # Power Supply System
- # Operation Mode Of System
- # DC Microgrid System
- # Control Strategy Of System
- # Operation Control Strategy
- # Power Supply
- # Droop Control
- # Microgrid System
