A Condition-Monitoring Method of DC-Link Capacitors Used in a High-Power Three-Phase PWM Inverter with an Evaluation Circuit
A Condition-Monitoring Method of DC-Link Capacitors Used in a High-Power Three-Phase PWM Inverter with an Evaluation Circuit
复制标题
一种带有评估电路的大功率三相 PWM 逆变器中直流链路电容器的状态监测方法
DOI：
--
复制
发表时间：
2019
影响因子：
1.7
通讯作者：
I. Omura
中科院分区：
文献类型：
--
作者：
K. Hasegawa;S. Nishizawa;I. Omura
This paper presents a condition-monitoring method of dc-link capacitors used in a high-power three-phase PWM inverter with an evaluation circuit intended for ageing tests. Although its power rating is 1/25 of the inverter, the evaluation circuit provides the equivalent ripple current waveform and dc-bias voltage to the high-power inverter. The monitoring method independently extracts the capacitance and ESR of the dc-link capacitor, where the fast Fourier transform is introduced to the ripple current waveform and the dc-link voltage of the evaluation circuit. Experimental results verify that the monitoring method obtains both the ESR and capacitance changes of a capacitor under test.
影响因子：
4.4
作者：
Yang, Shaoyong;Bryant, Angus;Tavner, Peter
通讯作者：
Tavner, Peter