航空电源测试中馈能式电子负载设计

飞机上电源系统存在不同电压等级，在进行机载电源性能指标测试时，没有一种通用型的电源测试设备。由于传统的静态负载使测试过程耗时耗力且难模拟复杂多变的真实负载， 给出了一种能量回馈型航空电源电子负载方案。这种双PWM拓扑结构结合控制策略技术实现的电子负载，能够通过微控制器设定各类负载形式，实现各种电源性能测试；同时通过后级逆变器将输入的能量全部回馈到电网中，达到节能目的。通过仿真进行验证，该方案具有一定工程实用性。

Energy feedback type of electronic load used on aviation power supply test

There are different voltage grade of power systems on the plane. In the airborne power performance test, there isn''t universal power test equipment. Traditional static load test process is time consuming and difficult to simulate the complex and changeable load, so the electronic load plan of a kind of energy feedback type aviation power is designed in this paper. This electronic load which combined control strategy for double PWM topology technology can set all kinds of load form through micro controller and implementation of the power performance test. At the same time, the after level inverter input energy to the grid, so the energy saving is realized by all feedback. Through simulation verification, this scheme has certain practicality.