Title:
SUPERVISORY CONTROL METHOD FOR LINE
Document Type and Number:
Japanese Patent JP3129182
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make a decision with no delay by setting a current interruption rate based on an initial decision of load limitation depending on a temperature estimated from weather conditions and performing the second and subsequent interruption of load selectively with a current interruption rate being set at a predetermined minimum rate thereby limiting the load on a line depending on the temperature of line.
SOLUTION: A decision section 4 makes a decision whether limitation of load is required or not base on the current temperature of a line estimated while taking account of weather conditions and the trend of predicted temperature at a predetermined time later. When limitation of load is required, an interruption rate determining section 7 increases the interruption rate as the the estimated temperature increases for a first feeder interruption command and an interruption executing section 8 interrupts the feeder selectively. Second and subsequently commands fix the current interruption rate at a predetermined minimum value and the remaining feeders are interrupted selectively. According to the method, over interruption can be prevented without causing any delay in the decision making and the conduction current of line can be farther reduced.
Inventors:
Keiichiro Takada
Yoshifumi Minowa
Yoshifumi Minowa
Application Number:
JP4420296A
Publication Date:
January 29, 2001
Filing Date:
February 05, 1996
Export Citation:
Assignee:
Nissin Electric Co., Ltd.
International Classes:
H02H9/02; H02H5/04; H02H6/00; H02J3/00; (IPC1-7): H02H6/00; H02H5/04; H02J3/00
Domestic Patent References:
| JP4317511A | ||||
| JP530637A | ||||
| JP4331414A |
Attorney, Agent or Firm:
Ryutaro Fujita