地波雷达是从事海洋环境研究以及电波传播相关理论探索的关键设备,设备安装和使用条件恶劣,并且处于连续运行状态,如何通过良好的维护来保证地波雷达的可靠运行,尤其是雷达的大功率发射设备,已成为使用和保障部门的重要课题。文中主要介绍了一种地波雷达微波管发射机的电源系统的组成,重点分析了阳极高压开关电源的电路原理,提出了变形脉宽调制控制的概念。 经过仿真和稳态工作波形分解,得出了该电源高可靠性和高效率的结论,给出了电源的主要工作电流、电压波形,希望为设备的使用和维护提供参考。

The ground wave radar is the key device in the research on marine environment, radio wave propagation and related fields. Because of the poor usage and installation environment, as well as continuous running status, how to ensure reliable operation of radar, especially for the high power transmitting devices on the radar, through good maintenance has become an important subject of the use and maintenance department. The power system of a vacuum tube transmitter at the ground wave radar is introduced in this paper. The concept of deformed PWM control is proposed by analyzing the circuit principle of the anode high voltage switch power supply. Through the simulation and decomposition at the steady state waveform, the high reliability and efficiency of the power supply can be demonstrated. The crucial current and voltage waveform of the power supply are given ultimately. It is hoped to provide a reference for the usage and maintenance of other equipment.

TN957.3