Title:
直流エネルギー消費装置の制御システムおよび制御方法
Document Type and Number:
Japanese Patent JP7291857
Kind Code:
B2
Abstract:
The present invention discloses a DC control system and a control method for a DC chopper apparatus. The system includes a VSC-HVDC control and protection system and a DC chopper apparatus control system. The method includes the following steps: collecting, by the VSC-HVDC control and protection system, AC and DC signals and a device operating status of a VSC-HVDC transmission system, and transmitting a DC chopper enable/disable instruction and a surplus power to the DC chopper apparatus control system when an AC system fails and an enable/disable condition is satisfied; when the communication is normal, contributing, by the DC chopper apparatus control system, a chopping power according to the DC chopper enable/disable instruction and the surplus power value transmitted from the VSC-HVDC control and protection system and a status of the DC chopper apparatus; and when the communication is abnormal, contributing, by the DC chopper apparatus control system according to a DC voltage and a current signal collected by the DC chopper apparatus control system, a chopping power when needed. By means of the technical solution, the required chopping power can be accurately contributed according to different fault types and the communication status of the control system, to stably control the DC voltage during the failure, thereby improving the stability and the reliability of the power transmission system.
Inventors:
Lee Gun
Lee, High Inn
Liu, Yu
Don, Yun Long
Wang, Shan Long
Elephant, Kaikai
Lee, Jang Chun
fu, shanrai
Lee, High Inn
Liu, Yu
Don, Yun Long
Wang, Shan Long
Elephant, Kaikai
Lee, Jang Chun
fu, shanrai
Application Number:
JP2022524189A
Publication Date:
June 15, 2023
Filing Date:
September 08, 2020
Export Citation:
Assignee:
NR ENGINEERING CO., LTD
NR ELECTRIC CO., LTD
NR ELECTRIC CO., LTD
International Classes:
H02J3/36; H02J1/00; H02J3/38; H02J5/00; H02J13/00
Domestic Patent References:
| JP2014064450A | ||||
| JP2015061448A | ||||
| JP2014147062A |
Foreign References:
| CN107834588A | ||||
| CN106159988A | ||||
| CN107994613A | ||||
| CN108539796A | ||||
| CN108258723A | ||||
| CN110350574A | ||||
| CN106099968A | ||||
| CN109861269A | ||||
| WO2018135031A1 |
Attorney, Agent or Firm:
Takeshi Masutani
Hiroyuki Nakao
Hiroyuki Nakao