Enterprise power grid reactive power optimization method and system based on comprehensive benefit analysis

A comprehensive benefit, enterprise technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, energy industry, etc., can solve problems such as considering the benefits of reactive power optimization scheme from the perspective of comprehensive benefit, and achieve reduction of reactive power crossing, Improves voltage levels, controls power factor and system active power losses

Inactive Publication Date: 2014-02-19
AUTOMATION RES & DESIGN INST OF METALLURGICAL IND
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  • Application Information

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Problems solved by technology

None of the above patents considered the benefits brought by the reactive power optimization scheme to the enterprise from the perspective of comprehensive benefits

Method used

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  • Enterprise power grid reactive power optimization method and system based on comprehensive benefit analysis
  • Enterprise power grid reactive power optimization method and system based on comprehensive benefit analysis
  • Enterprise power grid reactive power optimization method and system based on comprehensive benefit analysis

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Embodiment Construction

[0054] Such as figure 1 Shown is a diagram of the system modules of the present invention. The hardware includes an application server, a database server, a client PC and a network device connected to the computer. The data acquisition module, power flow calculation module, network loss calculation module, and optimization solution algorithm module are deployed on the application server, the database is installed on the database server, and the desktop client software or B / S browser client is installed on the client PC. The database stores real-time data, historical data, and production plans collected from SCADA (Supervisory Control And Data Acquisition) MES (Manufacturing Execution System), ERP (Enterprise Resource Planning, enterprise resource planning system) , Maintenance plan and other information. The power flow calculation module calculates the power flow of the entire network, the network loss calculation module calculates the active power loss of the entire network u...

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Abstract

The invention relates to an enterprise power grid reactive power optimization method and system based on comprehensive benefit analysis, and belongs to the field of enterprise power grid reactive power optimization dispatching. An enterprise power grid dispatching center overall coordinates generator excitation, voltage regulation and reactive-load compensation equipment through a reactive power optimization dispatching strategy with maximum comprehensive benefits as a target, the reactive power output of a generator, the position of an on-load transformer tap and the optimal switching state and switching capacity of the reactive-load compensation equipment are obtained through a self-adaption genetic algorithm, and the selection of the investment time and place of the reactive-load compensation equipment and the investment capacity of the reactive-load compensation equipment are determined. The enterprise power grid reactive power optimization method and system has the advantages that the reactive power output of the generator, the compensation quantity of compensation equipment, the position of the transformer tap, the cost of each adjusting method and the cost of active power transmission losses are comprehensively considered; the historical data and the operating mode of electric equipment are analyzed, a load model is built, and the load of a time frame to be optimized is predicated through the load model.

Description

Technical field [0001] The invention belongs to the field of reactive power optimization dispatching of enterprise power grids, and particularly provides a method and system for reactive power optimization of corporate power grids based on comprehensive benefit analysis. Background technique [0002] Enterprise power grids are classified according to their power supply functions and belong to a type of distribution network. In recent years, with the promotion of secondary energy (blast furnace gas, etc.) and waste heat and waste energy power generation technology, various waste heat and pressure self-generation equipment have been continuously put into use , The company’s internal power grid has gradually formed a complete regional micro-grid consisting of multiple links such as power generation, transformation, transmission, distribution and power consumption. [0003] Different from the general large power grid, the reactive power characteristics of the enterprise are as follows:...

Claims

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Application Information

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IPC IPC(8): H02J3/18
CPCY02E40/30Y02P80/10
Inventor 贾天云徐化岩刘庆贺曾玉娇力杰
Owner AUTOMATION RES & DESIGN INST OF METALLURGICAL IND
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