Electric power conversion device and adjusting method thereof

• Main Authors: HISASHI HOTATE, AKIRA MIMA, YUUICHI MABUCHI, DAISUKE MATSUMOTO, HIROSHI KAMIZUMA, YOUHEI MATSUMOTO
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2019
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention provides an electric power conversion device and an adjusting method thereof. The electric power conversion device comprises a plurality of electric power conversion circuits and is small and cheap. The electric power conversion device is parallelly connected to a plurality of electric power conversion circuits (100). Each one of electric power conversion circuits (100) comprises a capacitance (101) charged by a DC power supply (108) and an inverter main circuit that converts the DC current to the capacitance (101) into AC current. The DC input current, which is supplied to the plurality of electric power conversion circuits (100) and is from the DC power supply (108), is almost zero. 提供种电力变换装置以及电力变换装置的调整方法，电力变换装置包括多个电力变换电路，并且小型且廉价。电力变换装置并联连接多个电力变换电路(100)，多个电力变换电路(100)的每个具备由直流电源(108)充电的电容器(101)和将充电到电容器(101)的直流电力变换为交流电力的逆变器主电路，多个电力变换电路(100)被控制为来自直流电源(108)的直流输入电流大致为零。