POWER CONTROL DEVICE, AND METHOD FOR UPDATING SOFTWARE PROGRAM THEREOF

• Main Authors: YAMASHITA TOMOMI, FUJIWARA KUNIO
• Format: Patent
• Language: English; Japanese
• Published: 02.03.2017
• 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 suppress reduction in the amount of power generation accompanying update of a software program.SOLUTION: A distributed power supply that has a power generation device and is operated in linkage with a power system includes a power control device comprising a power supply switching unit, an information acquisition unit, and an update unit. The power supply switching unit switches the power control device's power source to either of the power generation device and the power system. The information acquisition unit acquires update information for the power control device's software program. The update unit executes updating of the software program by using the update information. The power supply switching unit switches the power supply source to the power system before a first period in which power generated by the power generation device cannot be equal to or larger than operation power of the power control device. The update unit executes updating in a second period, at least part of which overlaps with the first period.SELECTED DRAWING: Figure 2 【課題】ソフトウェアプログラムの更新に伴う発電量の低下を抑制する。【解決手段】発電装置を有して電力系統と連系運転される分散型電源の電力制御装置が電源切換部と情報取得部と更新部とを備える。電源切換部は電力制御装置の電力源を発電装置及び電力系統のうちの一方に切り換える。情報取得部は電力制御装置のソフトウェアプログラムの更新情報を取得する。更新部は更新情報を用いてソフトウェアプログラムの更新を実行する。また、電源切換部は発電装置の発電電力が電力制御装置の動作電力以上になり得ない第１期間の前に電力源を電力系統に切り換える。更新部は第１期間と少なくとも一部が重なる第２期間に更新を実行する。【選択図】図２