一种电磁探测发射机的DC-DC变换器研究与设计  

An Electromagnetic Transmitter to Detect the DC-DC Converter Research and Design

作　　者：黄江波[1,2] 付炜[3] 付志红[1] 

机构地区：[1]重庆大学电气工程学院,重庆400044 [2]长江师范学院电子信息工程学院,重庆涪陵408100 [3]国网重庆市电力公司市区供电分公司,重庆400015

出　　处：《微电子学与计算机》2017年第9期92-96,102,共6页Microelectronics & Computer

基　　金：国家自然科学基金项目(51277189);重庆市教委科学技术研究项目(KJ1401224)

摘　　要：针对大功率电磁发射机电源系统不理想,输出电压不稳定性、不可调,输出电能质量差等不足,研究了一种DC-DC全桥桥式变换电路,该电路由逆变电路、高频变压器和高频不可控整流桥组成.分析了该电路运行模式及工作原理,采用PID补偿方式设计了移相控制器.仿真结果表明,该变换电路稳态性好、动态性能好,关断电流快,电压0~1 000V大范围可调,适用于高压、大功率场合.Power systems of existing high-power high-performance electromagnetic detection equipments are unsatisfactory： the output voltage is instable and non-adjustable and the output electric energy is of poor quality. Aiming at this problem, the authors propose a full-bridge DC-DC converter of bridge mode. The circuit is composed of an inverter circuit, a high-frequency transformer, and a high-frequency uncontrolled rectifier. By studying the operation modes and working principles of the circuit, the research proposes to use the proportion-integration- differentiation （PIE）） method for compensation, and designs the model for the converter. A comparative analysis shows that the converter has favorable stability, good dynamic performance, little phase margins, and small errors. In addition, the output voltage is adjustable in a large range of 0-1,000 V. Therefore, it can be used in high-power and high-voltage applications.

关 键 词：变换器 PID补偿 模型设计 动态性能 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]