JPS54105756A - Reactive power compensator for varying load - Google Patents
Reactive power compensator for varying loadInfo
- Publication number
- JPS54105756A JPS54105756A JP1279978A JP1279978A JPS54105756A JP S54105756 A JPS54105756 A JP S54105756A JP 1279978 A JP1279978 A JP 1279978A JP 1279978 A JP1279978 A JP 1279978A JP S54105756 A JPS54105756 A JP S54105756A
- Authority
- JP
- Japan
- Prior art keywords
- reactive power
- current
- load
- time
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
PURPOSE: To make an operation of the reactive power compensation at high speed further in high precision, with a detection speed of response not worsened, by detecting a current slope near the point, where an instantaneous value of the load current crosses over zero point, and an integrated value of the load current, from near the before said point to near the point of the load voltage π/2.
CONSTITUTION: A differentiated value of the current at the time t = T, where the current becomes zero, is obtained from a formula I. Secondly, an integrated value of the current from the time t = T to t = 1/4f is obtained from a formula II. In the formula, where ω is proper known number, if assuming the load voltage approximately constant, a reactive power of the load may be obtained from a difference between the differentiated value of the current at the time t = T and the integrated value of the current from the time t = T to t = 1/4f. With a reactive power of varying load 13 detected by a reactive power detector 14, an on-off control of SCR11 to 11' is operated by a controller 15, to control a number of banks of condensers 12, 12' required for varying reactive power. In such way, a reactive power compensation can be operated at high speed further in high precision.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1279978A JPS54105756A (en) | 1978-02-07 | 1978-02-07 | Reactive power compensator for varying load |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1279978A JPS54105756A (en) | 1978-02-07 | 1978-02-07 | Reactive power compensator for varying load |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54105756A true JPS54105756A (en) | 1979-08-20 |
Family
ID=11815430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1279978A Pending JPS54105756A (en) | 1978-02-07 | 1978-02-07 | Reactive power compensator for varying load |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54105756A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106300383A (en) * | 2016-09-09 | 2017-01-04 | 中国南方电网有限责任公司电网技术研究中心 | The comprehensive reactive configuration method of 10kV distribution line of consideration equipment response speed |
-
1978
- 1978-02-07 JP JP1279978A patent/JPS54105756A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106300383A (en) * | 2016-09-09 | 2017-01-04 | 中国南方电网有限责任公司电网技术研究中心 | The comprehensive reactive configuration method of 10kV distribution line of consideration equipment response speed |
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