Novel Utility-interactive Electrical Energy Storage System by Electrical Double Layer Capacitors and an Error Tracking Mode PWM Converter
Novel Utility-interactive Electrical Energy Storage System by Electrical Double Layer Capacitors and an Error Tracking Mode PWM Converter
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由双电层电容器和误差跟踪模式 PWM 转换器组成的新型实用交互式电能存储系统
DOI：
10.1541/ieejias.118.1417
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发表时间：
1998
影响因子：
--
通讯作者：
M. Okamura
中科院分区：
文献类型：
--
作者：
M. Ohshima;M. Shimizu;M. Shimizu;M. Yamagishi;M. Okamura
设计了一种新型的与商用交流电网相互作用的电能存储系统，该系统由具有称为误差跟踪模式的恒定采样PWM方案的AC/DC转换器和由监控电路监控的双电层电容器组成，并通过实验进行了评估。交流额定值为100 V，500 W和1.0功率因数。存储容量设计为500 Wh。由于电容器组的电压随着放电而降低到四分之一，因此在电容器组和AC/DC转换器之间插入可逆升压斩波器。AC/DC转换器在整流器操作和逆变器操作中的效率分别为95.6%和95.8%。平均开关频率在10.4 ± 0.5之间11.2 kHz，适用于任何操作条件。对于斩波器，在充电和放电模式下分别测得94.6%和93.1%的效率值。电容器组的储能效率为89.8%。这种新型的公用事业互动储能系统已表现出良好和快速的性能。
A novel electrical energy storage system interacting to a commercial ac network was designed and evaluated by experiments, which consists of an ac/dc converter with a constantly-sampled PWM scheme termed Error Tracking Mode and electrical double layer capacitors paralleled by monitor circuits. The ac ratings are 100V, 500W and 1.0 power factor. The storage capacity is designed to be 500Wh. Since the voltage of the capacitor bank decreases to one-fourth with discharge, a reversible boost-down chopper is inserted between the bank and the ac/dc converter. 95.6% and 95.8% were obtained for the ac/dc converter efficiency in rectifier operation and inverter operation respectively. The average switching frequency was settled between 10.4_??_11.2 kHz for any operating conditions. For the chopper, efficiency values of 94.6% and 93.1% were measured in charge and discharge modes respectively. The storage efficiency of the capacitor bank was 89.8 %. This novel utility-interactive energy storage system has demonstrated good and quick performance.