A 200 kV high voltage DC power supply with high stability and low ripple
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摘要: 直流高压电源在科学实验和工业生产中有着广泛的运用,传统高压直流电源是通过工频变压器直接升压,再经整流滤波得到所需要的高压,普遍存在精度低、调整复杂、纹波系数大等诸多缺陷。本系统基于全桥逆变、倍压整流和脉宽控制技术,设计了用于电子束离子阱装置的直流高压电源,采用高频逆变、正负双向倍压整流、电压电流双环控制等方法,实现了直流高压输出。结果表明,所设计的直流高压电源具有稳定性好、纹波小、可靠性高、系统安全等特点,最终输出的电压在0~200 kV连续可调,纹波和稳定性都小于0.01%,满足实验需求。Abstract: The high-voltage DC power supply is widely used in scientific experiments and industrial production. To meet the requirements of high stability and low ripple of high voltage power for EBIT, the paper focuses on a designing a high-voltage DC power supply. The main circuits make use of the high frequency inversion circuit, duple voltage rectifying circuit and voltage and current dual-loop control to get the high DC voltage. The experimental results show that the DC high voltage power has good stability, small ripple, high reliability, system security, and it meets the test requirements.
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Key words:
- DC high voltage power /
- duple voltage rectifying circuit /
- low ripple /
- high stability
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