DISTRIBUTED POWER SYSTEM

• Main Authors: UENOYAMA SATORU, AZUMAGUCHI SEISAKU
• Format: Patent
• Language: English; Japanese
• Published: 13.08.2015
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

PROBLEM TO BE SOLVED: To provide a distributed power system capable of determining any one of abnormality in a power system or actuation of a power generator side breaker, when power is not supplied to the power generator from a power system, even if an accessory device side breaker is actuated.SOLUTION: A distributed power system including a power generator 30 connected to the way of a first wire L1 connecting a power system 1 and a load 2 by means of a second wire L2, and to which power can be supplied, and an accessory device 40 connected to the way of the first wire L1 by means of a third wire L3, and operating in association with the power generator 30, is further provided with a first detector 7 for detecting the power supply state on the side closer to the power system 1 side than the branch of the second wire L2 and the branch of the third wire L3 in the first wire L1, and a second detector 8 for detecting the power supply state of the second wire, and an abnormal state is detected on the basis of the detection results from both detectors 7, 8. 【課題】付随装置側ブレーカが作動されている場合であっても、発電装置が電力系統から給電されない状態となった際に、電力系統の異常と発電装置側ブレーカの作動のいずれかを判定することができる分散型電源システムを提供する。【解決手段】電力系統１と負荷装置２とを接続する第１の電線Ｌ１の途中に第２の電線Ｌ２によって接続され、電力を供給可能とされる発電装置３０と、第１の電線Ｌ１の途中に第３の電線Ｌ３によって接続され、発電装置３０に付随して稼働する付随装置４０とを備えた分散電源システムに、第１の電線Ｌ１における第２の電線Ｌ２の分岐部及び第３の電線Ｌ３の分岐部よりも電力系統１側での給電状態を検出する第１の検出装置７と、第２の電線の給電状態を検出する第２の検出装置８とを備え、両検出装置７，８の検出結果に基づいて異常状態を判定する。【選択図】図１