POWER CONVERSION SYSTEM

• Main Authors: LEE CHIA TSE, ICHINOSE MASAYA, ABE YUSUKE, KAGEYAMA HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2020
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

To provide a power conversion system capable of securely compensating for power fluctuation of a renewable energy power generation device.SOLUTION: A power conversion system (500) comprising a first power conversion device (101) for performing power conversion on power from a renewable energy power generation device (104) and a second power conversion device (102) for performing power conversion on power from a power storage device (105) controls the first power conversion device on the basis of information acquired through first communication means (107) and controls the second power conversion device so as to compensate for fluctuation in power generated by the renewable energy power generation device to output the first and second power conversion devices' output power to an external system (103). The power conversion system comprises an autonomous control unit (503) for individually controlling the second power conversion device. On the basis of information acquired through second communication means (502) having communication delay smaller than that of the first communication means, the autonomous control unit controls the second power conversion device so as to compensate for fluctuation in power generated by the renewable energy power generation device.SELECTED DRAWING: Figure 5 【課題】再生可能エネルギー発電装置の電力変動を確実に補償できる電力変換システムを提供する。【解決手段】電力変換システム（５００）は、再生可能エネルギー発電装置（１０４）からの電力を電力変換する第１電力変換装置（１０１）と、蓄電装置（１０５）からの電力を電力変換する第２電力変換装置（１０２）と、第１通信手段（１０７）を介して得られる情報に基づいて、第１電力変換装置を制御し、かつ再生可能エネルギー発電装置の発電電力の変動を補償するように第２電力変換装置を制御して、第１および第２電力変換装置の出力電力を外部系統（１０３）へ出力し、第２電力変換装置を個別に制御する自律制御部（５０３）が、第１通信手段よりも通信遅延が小さな第２通信手段（５０２）を介して得られる情報に基づいて、再生可能エネルギー発電装置の発電電力の変動を補償するように第２電力変換装置を制御する。【選択図】図５