| 引用本文: | 徐先勇,罗安,方璐,刘定国,罗卓伟.AC/DC/AC调频式谐振高压试验电源控制策略[J].电力自动化设备,2010,(2): |
| .Control strategy of AC/DC/AC high-voltage FTRTPS[J].Electric Power Automation Equipment,2010,(2): |
|
|
| 摘要: |
| 传统的调频式谐振高压试验电源采用模拟器件产生幅值、频率可调的正弦信号,由大功率三极管组成的多级放大电路得到大功率正弦信号,电路复杂、不易维护。提出以大功率开关器件IGBT产生局部放电试验或交流耐压试验所需的正弦信号。新型调频式谐振高压试验电源的系统主要由三相PWM整流电路、H桥逆变电路、输出滤波器、检测单元、DSP控制器及人机接口(键盘、液晶)组成。针对电压调节提出应用自适应PI的以电网电流为内环、直流电容电压为外环的双闭环控制策略,对于电压调节由三相PWM整流电路实现;针对频率调节提出应用比例积分锁相自动调频控制策略,频率调节由H桥逆变电路实现。采用Matlab/Simulink仿真工具搭建了系统的仿真模型,仿真及试验结果表明,所提出的控制方案动、静态性能良好,鲁棒性强。 |
| 关键词: 自适应PI PI锁相控制 PWM整流电路 调频式谐振试验电源 电源控制策略 |
| DOI： |
| 分类号:TM835 |
| 基金项目:国家自然科学基金项目(60774043);;湖南省研究生科研创新项目(湘财教指[2008]68号)~~ |
|
| Control strategy of AC/DC/AC high-voltage FTRTPS |
|
XU Xianyong LUO An FANG Lu LIU Dingguo LUO Zhuowei
|
| Abstract: |
| Traditional high-voltage FTRTPS(Frequency-Tuned Resonant Test Power Supply) employs the analog devices to generate the amplitude- and frequency-tunable sinusoidal signal and the multistage amplifier of high-power triodes to generate high-power sinusoidal signal,which is complicated and not easy to maintain. It is proposed to employ high-power switching device IGBT to generate sinusoidal signal for local discharge test or AC voltage-withstand test. It is composed of the three-phase PWM rectifier,H-bridge inv... |
| Key words: adaptive PI PI phase-locked control PWM rectifier frequency-tuned resonant test power supply control method of power supply |
