POWER SOURCE SYSTEM AND POWER SUPPLY

• Main Authors: EGUCHI HIROYUKI, TASHIRO YUTARO, SHIIYAMA TAKUMI
• Format: Patent
• Language: English; Japanese
• Published: 22.05.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

To provide a technique to generate a three-phase AC signal using a plurality of external power supplies each outputting a single-phase AC signal, while ensuring protection performance against load.SOLUTION: Provided is a power source system including three power supplies which are connected to a vehicle battery and convert DC power stored in the battery into single-phase AC power, and a power supply control device which generates and outputs a three-phase AC signal that is obtained by synchronizing, with 120° phase difference, single-phase AC signals output from the three power supplies, each of the three power supplies outputting single-phase AC signals for two phases. Each of the three power supplies includes: a first current sensor for detecting one current of the single-phase AC signals for two phases; a second current sensor for detecting the other current of the single-phase AC signals for two phases; and determination means for determining whether an open-phase occurs in the other of the power supply based on the detection results of the first current sensor and the second current sensor.SELECTED DRAWING: Figure 6 【課題】負荷に対する保護性能を確保しつつ、単相交流信号を出力する外部給電器を複数台用いて三相交流信号を生成する技術を提供する。【解決手段】車両のバッテリと接続し、前記バッテリに蓄電された直流電力を単相交流電力に変換する三つの給電器と、前記三つの給電器から出力される単相交流信号を１２０°の位相差で同期させた三相交流信号を生成して出力する給電制御装置と、を備え、前記三つの給電器は、ぞれぞれ、二相分の単相交流信号を出力する電源システムであって、前記三つの給電器の各給電器は、前記二相分の単相交流信号の一方の電流を検知する第一の電流センサと、前記二相分の単相交流信号の他方の電流を検知する第二の電流センサと、前記第一の電流センサ及び前記第二の電流センサの検知結果に基づいて、他の前記給電器において欠相が生じているか否かを判定する判定手段と、を備える。【選択図】図６