作　　者： (黄江波）; (付炜）; (付志红）;

机构地区： 重庆大学电气工程学院,重庆400044 长江师范学院电子信息工程学院,重庆涪陵408100

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

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 补偿 模型设计 动态性能