ELECTRIC POWER SYSTEM

PROBLEM TO BE SOLVED: To provide an electric power system which can reduce processing load of a device managing a plurality of electric power devices.SOLUTION: A photovoltaic power generation system PVS9 has a plurality of power conditioners PCSand PCS, and a centralized management device MC9. In th...

Full description

Saved in:
Bibliographic Details
Main Author OHORI AKIHIRO
Format Patent
LanguageEnglish
Japanese
Published 01.11.2018
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:PROBLEM TO BE SOLVED: To provide an electric power system which can reduce processing load of a device managing a plurality of electric power devices.SOLUTION: A photovoltaic power generation system PVS9 has a plurality of power conditioners PCSand PCS, and a centralized management device MC9. In the centralized management device MC9, a mode setting portion 91 sets any one of a plurality of control modes, and a target power setting portion 21 sets a target power according to the set control mode. Also, an index calculating portion 93 calculates a restriction index prand a charge/discharge index prso that a linkage point power P(t) may become the target power. The plurality of power conditioners PCScalculate an individual target power by using the restriction index pr, and control individual output power based on the restriction index. The plurality of power conditioners PCScalculate the individual target power by using the charge/discharge index pr, and control the individual output power based on the charge/discharge index.SELECTED DRAWING: Figure 26 【課題】複数台の電力装置を管理する装置の処理負荷を低減させることができる電力システムを提供する。【解決手段】太陽光発電システムPVS9は、複数台のパワーコンディショナPCSPVi,PCSBkと集中管理装置MC9とを備えている。集中管理装置MC9において、モード設定部91は複数の制御モードのうちのいずれかを設定し、目標電力設定部21は、設定された制御モードに応じて目標電力を設定する。また、指標算出部93は、連系点電力P(t)が目標電力となるように抑制指標prPVおよび充放電指標prBを算出する。そして、複数台のパワーコンディショナPCSPVi,は、抑制指標prPVを用いて個別目標電力を算出し、それに基づいて個別出力電力を制御する。複数台のパワーコンディショナPCSBkは、充放電指標prBを用いて個別目標電力を算出し、それに基づいて個別出力電力を制御する。【選択図】図26
Bibliography:Application Number: JP20170067765