Title:
【発明の名称】系統安定化システム
Document Type and Number:
Japanese Patent JP3092858
Kind Code:
B2
Abstract:
PURPOSE:To realize stable power supply by detecting a change in the internal phase angle of a generator from the rotor phase of the generator and voltage phase on a system side and controlling the internal phase angle of a synchronous phase modifier by means of a high-speed phase shifter so that excessive power can be absorbed by the synchronous phase modifier. CONSTITUTION:An RC internal phase angle change detecting means 7 detects the phase difference between the inside of an RC and system and supplies the detected phase difference to a firing angle control means 8 as deltaR. On the other hand, a generator internal phase angle change detecting means 9 supplies the variation deltaC of an internal phase angle when a system accident occurs to the control means 8. The deltaC is the phase angle of a generator corresponding to the power which becomes excessive when one transmission line circuit is cut off by the accident. Then the control means 8 finds the power to be supplied to the RC from the deltaC and deltaR and controls the firing angle of a generator by outputting the control angle alpha corresponding to the value to a phase shifter. Therefore, the fluctuation of the system can be suppressed when the system accident occurs.
Inventors:
Ryuichi Shimada
Mitsuyoshi Kurobe
Mitsuyoshi Kurobe
Application Number:
JP9824091A
Publication Date:
September 25, 2000
Filing Date:
April 03, 1991
Export Citation:
Assignee:
THE TOKYO ELECTRIC POWER COMPANY,INCORPORATED
International Classes:
H02J3/24; G05F1/70; H02J3/16; (IPC1-7): H02J3/16; G05F1/70; H02J3/24
Domestic Patent References:
| JP60217423A | ||||
| JP61170241A | ||||
| JP59231621A | ||||
| JP265628A | ||||
| JP5588529A | ||||
| JP60200732A |
Attorney, Agent or Firm:
Norio Ishii