Reactive power optimization method and relevant device of power system under power market background
A technology of power system and power market, applied in the direction of circuit devices, reactive power compensation, reactive power adjustment/elimination/compensation, etc., can solve problems such as limited application range, no consideration of safety check, dimension disaster, etc., and achieve application The effect of wide range, reducing active network loss and reactive power expenditure, and saving dispatching costs
Inactive Publication Date: 2019-03-08
GUANGDONG POWER GRID CO LTD +2
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Reactive power optimization is a nonlinear, multi-period, and large-scale dynamic optimization problem. Traditional reactive power optimization algorithms mainly include linear programming, nonlinear programming, and dynamic programming. Disaster" defects, that is, only line loss and reactive power costs are considered, and the problem of safety check is not considered, so the application range is limited
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[0045] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0046] see figure 1 , a schematic flowchart of a method for reactive power optimization of a power system under the background of the power market in the embodiment of the present application.
[0047] The first aspect of the present application provides a method for reactive power optimization of a power system under the background of a power market, including: ...
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The embodiment of the invention discloses a reactive power optimization method and relevant device of a power system under power market background. The reactive power optimization method comprises thesteps of acquiring a system parameter of the power system; determining an expression taking minimum active power network loss and reactive power cost as a reactive power optimization target functionof the power system according to the system parameter and preset power market electrical cost information; determining a constraint condition for stable running of the power system according to the system parameter; performing iterative calculation according to a preset optimization algorithm, performing safety judgment on each reactive optimization scheme according to a preset criterion after iterative calculation is ended, and determining the optimal reactive optimization scheme from all dispatching schemes of which the safety conforms to preset requirement. By the method, the problem of safety correction is considered, the active power network loss and the reactive power incur expense of electric energy can be reduced to the greatest extent under the condition that the safety and the stability of the power system are ensured, the power grid running and dispatching expense is reduced to the greatest extent, maximum economy of a power grid is achieved, and the reactive power optimization method is relatively wide in application range.
Description
technical field [0001] The present application relates to the technical field of power system control, in particular to a method and related devices for reactive power optimization of a power system under the background of a power market. Background technique [0002] Optimal scheduling and control of reactive power in the power system can improve system voltage quality and reduce power transmission losses, thus ensuring safe and economical operation of the power system. Reactive power optimization is a nonlinear, multi-period, and large-scale dynamic optimization problem. Traditional reactive power optimization algorithms mainly include linear programming, nonlinear programming, and dynamic programming. Disaster" defects, that is, only line loss and reactive power costs are considered, and the problem of safety check is not considered, so the scope of application is limited. Contents of the invention [0003] The embodiment of the present application provides a method an...
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IPC IPC(8): H02J3/18
CPCH02J3/18H02J2203/20Y02E40/30
Inventor 张子泳皮杰伍双喜
Owner GUANGDONG POWER GRID CO LTD