采用补偿技术的电子式电流互感器高压侧电源  

Power Source in High Voltage Side of Electronic Transformer With Compensation Technique

作　　者：徐垦[1] 徐雁[1] 肖霞[1] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《电气自动化》2012年第2期43-45,共3页Electrical Automation

摘　　要：一种基于补偿法的电流互感器式电源被用来为电子式电流互感器高压侧供能。因采用反相的补偿电压和非线性反馈技术,当一次电流很大时仍能保持稳定的输出电压。测试结果表明,当一次电流变化范围为10 A到3 500 A时,电源样机能输出稳定的5 V直流电压,最大输出功率200 mW,足以满足电子式电流互感器高压侧电路对电源的要求。A power source based on the current transformer and compensation technique is presented to supply power for the high voltage （ HV ） side of the electronic transformer（ ET）. Because of the compensation voltage with the opposite phase and the nonlinear feedback, this source can keep the output voltage Stable if the primary current is very high. The test shows that the prototype can supply 5V of the stable output voltage and up to 200mW of the output power for the primary current ranging from IOA to 3500A, which is good enough to meet the requirement to the power source of the HV side of the ET.

关 键 词：电源 补偿 电流互感器 

分 类 号：TM919[电气工程—电力电子与电力传动]