A multi-measure coordinated voltage correction control method based on real-time voltage response trajectory
A voltage control, real-time voltage technology, applied in the direction of AC network voltage adjustment, reactive power compensation, etc., can solve the problems of inability to achieve continuous voltage control, increased investment, and sudden voltage changes.
Active Publication Date: 2015-09-16
STATE GRID CORP OF CHINA +2
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, since the configured capacity of the capacitor / reactor is discrete, continuous control of the voltage cannot be realized, and there is a voltage mutation process after switching the capacitor / reactor
In recent years, reactive power compensation devices such as static var compensator (SVC) and static synchronous compensator (STATCOM) have been initially applied in power systems. Compared with traditional voltage control methods, voltage smooth control can be achieved to a certain extent, but it needs A large amount of investment is added, and the control effect depends on the optimization of the configuration location and control strategy
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0035] The present invention will be described in further detail below with reference to the accompanying drawings and examples.
[0036] Such as figure 2 Shown, the concrete steps of the inventive method comprise:
[0037] 1) Determine the voltage control node, assuming that there are t control nodes in total, and the number of the i-th control node (ie, node i) is i.
[0038] 2) Set the voltage control target value of node i, including the control target value U to solve the problem of voltage rise setHi and the control target value U of the voltage drop problem setLi .
[0039] 3) Determine the voltage control area curve through the analysis of power grid security and stability. Let the voltage increase control setting be U setHconi , the voltage drop control setting is U setLconi , then greater than U setHconi The area is the voltage rise control area, which is less than U setLconi The area is the voltage drop control area, and the two are collectively referred to...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a voltage corrective control method based on a real-time voltage response track through multi-measure coordination, and belongs to the field of electric systems and automation technologies of the electric systems. The voltage corrective control method serves as a voltage control method, the real-time voltage response track of control nodes of the electric system serves as an information source for voltage corrective control through multi-measure coordination, and voltage of the control nodes can be corrected and controlled in real time. The voltage control method is coordinated by means of multiple measures, an existing device of the system can be made full use of, existing controllable measures are coordinated, safe and stable operation of a power grid is guaranteed, meanwhile control cost is reduced, and operating economical efficiency of the system is improved.
Description
technical field [0001] The invention belongs to the technical field of electric power systems and automation thereof. More precisely, the invention relates to a multi-measure coordinated voltage correction control method based on a real-time voltage response track. Background technique [0002] The safe and stable operation of the power system is closely related to the voltage level. When the voltage exceeds the allowable range of the system, the current main method is to control the voltage within a reasonable range by switching off capacitors / reactors, and not to improve the voltage level by controlling the load except in extreme cases. However, since the configured capacity of the capacitor / reactor is discrete, continuous control of the voltage cannot be realized, and there is a voltage mutation process after switching the capacitor / reactor. In recent years, reactive power compensation devices such as static var compensator (SVC) and static synchronous compensator (STATC...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/16
CPCY02E40/30
Inventor 党杰李兆伟任先成李威徐友平方勇杰薛峰邵德军崔晓丹常海军徐遐龄袁虎玲
Owner STATE GRID CORP OF CHINA