SOLAR POWER GENERATION SYSTEM WITH STORAGE BATTERY AND METHOD FOR CONTROLLING THE SAME

Title:

SOLAR POWER GENERATION SYSTEM WITH STORAGE BATTERY AND METHOD FOR CONTROLLING THE SAME

Document Type and Number:

Japanese Patent JP2021180544

Kind Code:

A

Abstract:

To provide a solar power generation system with a storage battery capable of reducing purchase power charge by focusing on distribution balance of output effective power and output reactive power of a power converter.SOLUTION: A solar power generation system 10 with a storage battery includes: power generation facilities (solar power generation facilities 13) utilizing solar energy; storage battery facilities 14 for mitigating variations in a power generation output from the power generation facilities; and a control device 15 for controlling the power generation output from the power generation facilities and the storage battery facilities 14. The control device 15 includes: a peak cut control unit 16 for performing peak cut control of power received from a power system by adjusting output effective power of the power conversion device in the storage battery facilities 14; a power factor improvement control unit 17 for adjusting output reactive power in the power generation facilities and storage battery facilities 14 to perform power factor improvement control; and a peak cut target value determination unit 18 for determining a peak cut target value that minimizes power charge cost by the peak cut control and the power factor improvement control.SELECTED DRAWING: Figure 1

More Like This:

JP2003032887	WIDE-AREA POWER SUPPLY TRANSACTION METHOD AND WIDE- AREA POWER SUPPLY AND TRANSACTION SYSTEM
WO/2024/010894	SOLAR POWER SYSTEM FOR INDUCTION MOTOR SOFT-STARTING AND POWER COMPENSATION, AND RELATED METHODS
JP2526992	INDUSTRIAL APPLICABILITY: Parallel operation system of AC output converter

Inventors:

LEE CHIA TSE
YOSHIHARA TORU
TOMIYASU KUNIHIKO
HARADA YUKI
HINOHARA AKIRA

Application Number:

JP2020083491A

Publication Date:

November 18, 2021

Filing Date:

May 11, 2020

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HITACHI LTD

International Classes:

H02J3/46; H02J3/00; H02J3/32; H02J3/38; H02J7/35

Attorney, Agent or Firm:

Isono International Patent and Trademark Office

Previous Patent: Battery secondary usage judgment system and battery secondary usage judgment method

Next Patent: Battery unit