POWER SUPPLY SYSTEM

PROBLEM TO BE SOLVED: To provide a power supply system that, when abnormality occurs at one power generator, is capable of continuing power supply to respective wiring parts and, when abnormality occurs at a part of a wiring part, is capable of inhibiting its influence on other wiring parts.SOLUTION...

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Main Authors BANDO SOICHIRO, KIMURA KIYOSHI, UMETSU YUSUKE, TAKAYAMA SUGURU, SUGIMOTO KAZUSHIGE, YAMAGUCHI NAOTERU, UDA TAKATO
Format Patent
LanguageEnglish
Japanese
Published 05.07.2018
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:PROBLEM TO BE SOLVED: To provide a power supply system that, when abnormality occurs at one power generator, is capable of continuing power supply to respective wiring parts and, when abnormality occurs at a part of a wiring part, is capable of inhibiting its influence on other wiring parts.SOLUTION: Each of a plurality of power generators is configured so that relationship of a frequency to power generator effective power output to a corresponding AC wiring part by the power generator has a predetermined first drooping characteristic. A plurality of power converters are configured to convert AC power input via respective AC wiring parts into DC power and convert DC power input via a DC wiring part into AC power. A controller is configured to generate a drive signal for each power converter, by determining a target value of a control element so that relationship of a frequency to power generator effective power output to a corresponding AC wiring part by the power converter has a predetermined second drooping characteristic and, then, correcting the target value of the control element depending on a DC voltage at the DC wiring part.SELECTED DRAWING: Figure 1 【課題】 一の発電機に異常が生じた場合において、各配線部への電力供給を継続することができ、配線部の一部に異常が生じた場合において、他の配線部に影響を与えないようにすることができる電源システムを提供する。【解決手段】 複数の発電機のそれぞれは、対応する交流配線部に各発電機が出力する発電機有効電力に対する周波数の関係が所定の第１の垂下特性を有するよう構成され、複数の電力変換装置は、各交流配線部を通じて入力される交流電力を直流電力に変換するとともに、直流配線部を通じて入力される直流電力を交流電力に変換するよう構成され、制御装置は、対応する交流配線部に各電力変換装置が出力する電力変換装置有効電力に対する周波数の関係が所定の第２の垂下特性を有するように制御要素の目標値を決定し、制御要素の目標値を直流配線部における直流電圧に応じて補正することにより、各電力変換装置のための駆動信号を生成するよう構成される。【選択図】図１
Bibliography:Application Number: JP20160254003