DISTRIBUTED POWER SUPPLY SYSTEM

To provide a distributed power supply system by which a charge/discharge device and a photovoltaic power generation device connected with one power conditioner can be utilized by being used together with a power generation device.SOLUTION: A distributed power supply system executes a first operation mode for switching a switcher 7 to a first state of electrically connecting a power conditioner 6 with a first connection part P1 of a power line 2 to be operated to output generated power of a photovoltaic power generation device 4 to a side of the switcher 7 by the power conditioner 6 when the generated power of the photovoltaic power generation device 4 is larger than set generated power, and executes a second operation mode for switching the switcher to the first state to cause a charge/discharge device 5 to perform a discharge operation by the power conditioner 6, or a third operation mode for switching the switcher to a second state of electrically connecting the power conditioner 6 with a third connection point P3 of the power line 2 to cause the charge/discharge device 5 to perform a charge operation by the power conditioner 6 when the generated power of the photovoltaic power generation device 4 is the set generated power or less.SELECTED DRAWING: Figure 1 【課題】発電装置と併用して、１台のパワーコンディショナに接続された充放電装置と太陽光発電装置とを活用できる分散型電源システムを提供する。【解決手段】分散型電源システムが、太陽光発電装置４の発電電力が設定発電電力より大きいとき、パワーコンディショナ６を電力線２の第１接続箇所Ｐ１に対して電気的に接続する第１状態に切り替えて、パワーコンディショナ６により太陽光発電装置４の発電電力を切替器７側へ出力させるように動作させる第１運転モードを実行し、太陽光発電装置４の発電電力が設定発電電力以下であるとき、上記第１状態に切り替えてパワーコンディショナ６により充放電装置５を放電作動させる第２運転モード、又は、パワーコンディショナ６を電力線２の第３接続箇所Ｐ３に対して電気的に接続する第２状態に切り替えてパワーコンディショナ６により充放電装置５を充電作動させる第３運転モードを実行する。【選択図】図１