微电网技术在航天供电系统中的应用

随着分布式发电技术的不断发展，将分布式发电供能系统以微电网的形式运行，与大电网互为支撑，成为发挥分布式发电供能系统能效的最有效方式之一。航天电力系统由于具有较强的分布式特点，而其对供电可靠性要求高，适合采用微电网系统。在归纳总结微电源模型的基础上，分别在独立运行和并网运行时分析了微电源逆变器的控制特性，根据不同微电源的类型分别采用PQ控制和V/f控制策略，提出了相应的控制器设计方法，建立了微电网模型。试验结果表明，微电网技术适合在航天供电系统中应用发展。

Application of Micro-grid Technology in Aerospace Power Supply System

With the development of the distributed power generation technology, the micro-grid, which takes a part together with the power grid, has been one of the most effective ways to make use of the distributed power supply. Aerospace power systems are distributed systems, demanding of high reliability. Micro-grid system is suitable for Aerospace power systems. The micro-cell model is analyzed, and the control strategy of the inverter both on stand-alone mode and grid-connected mode are studied. PQ control method and V/f control method are used separately due to different micro-cells. Corresponding control strategies are designed, and the micro-grid model is established. Experiments show that the micro-grid technology is suitable for aerospace power supply system.