摘要
智能型串联谐振试验电源采用变频变压的方法来使试验回路谐振实现二次升压,是电气设备进行耐压试验不可缺少的检测设备。文中介绍了一种智能型串联谐振试验电源系统的电压及频率控制策略,采用内环电流值外环电压平均值双闭环PI调节器实现电压的跟踪,采用离散傅里叶变换(DFT)求取相位差的方法实现了对系统谐振频率的自动跟踪。实验数据表明,该试验装置具有电源设备容量小、交流等效性好等特点,是目前对高电压等级被测试品进行耐压试验行之有效的方法。
Intelligent series resonant test power source adopts the method of frequency conversion variable pressure to make resonant test circuits to realize the secondary booster, which is indispensable to withstand voltage test electrical equipment testing equipment. This paper introduces a kind of intelligent series resonant test power system voltage and frequency control strategy, outer ring with inner ring current value average voltage double closed loop PI regulator realize voltage tracking, using the discrete Fourier transform（DFT） to calculate the phase difference method to realize the system resonant frequency automatic tracking. The experimental data show that the test device has a small power equipment capacity and has good AC equivalence, which is an effective method currently for the high voltage level grade products to withstand voltage test.
出处
《高压电器》
CAS
CSCD
北大核心
2014年第6期7-12,共6页
High Voltage Apparatus
基金
陕西教育厅产业化培育项目(2010JC08)
西安市科技计划项目产学研合作促进工程(CXY1104)
陕西省科学技术研究发展计划项目(2011KJXX09)~~
关键词
串联谐振
双闭环调压
频率跟踪
试验回路
相位差
series resonant
double closed-loop regulating
frequency tracking
test loop
phase difference
