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Circuit security constraint-considering provincial grid AGC (automatic generation control) unit dynamic optimization scheduling method

A scheduling method, a technology of security constraints, applied in the direction of AC networks with different sources of the same frequency, etc., can solve problems such as inaccuracy

Inactive Publication Date: 2015-06-03
CHONGQING UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the AGC unit adjustment command and adjustment rate obtained by the existing dynamic optimization scheduling method are not accurate enough and do not necessarily meet the line safety constraints

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  • Circuit security constraint-considering provincial grid AGC (automatic generation control) unit dynamic optimization scheduling method
  • Circuit security constraint-considering provincial grid AGC (automatic generation control) unit dynamic optimization scheduling method
  • Circuit security constraint-considering provincial grid AGC (automatic generation control) unit dynamic optimization scheduling method

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Embodiment Construction

[0096] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.

[0097] The specific steps of the dynamic optimal scheduling method for AGC units in the provincial power grid considering the line safety constraints are as follows:

[0098] (1) Input the basic data of the provincial power grid

[0099] First input the basic data of the provincial power grid, including obtaining the network structure and related data of the provincial grid, collecting AGC related data, and setting evolutionary planning parameters; the netwo...

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Abstract

The invention discloses a circuit security constraint-considering provincial grid AGC (automatic generation control) unit dynamic optimization scheduling method. The method comprises the following steps of firstly, inputting provincial grid basic data, i.e., acquiring a network structure and related data of a provincial grid, acquiring AGC related data, and setting an evolutionary programming parameter; secondly, randomly generating an initial population of control variables (a regulating instruction and a regulating rate), and performing adaptive mutation operation on antibodies in the population; thirdly, correcting the antibodies according to a regulating instruction constraint, a regulating rate constraint and the minimum continuous climbing time constraint, and comprehensively considering target functions of a CPS1 (control performance standard) index and AGC regulation ancillary service charge, and inequality constraints of tie-line power deviation, system frequency deviation, CPS indexes, unit output and circuit safety, and calculating the adaptive value of each antibody in the population; finally, on the basis of adaptability, evaluating and selecting the antibodies, and performing termination judgment to realize decision on the regulating instruction and the regulating rate of an AGC unit.

Description

technical field [0001] The invention belongs to the technical field of frequency modulation and automatic power generation control of interconnected power grids, and in particular relates to a method for dynamically optimizing the dispatching of active power output of AGC units of a provincial power grid connected to an external network through a tie line. Background technique [0002] Automatic Generation Control (AGC), as the basis of automatic frequency regulation in power systems, is an important technical means to realize grid active frequency control, maintain system frequency quality, and control exchange power of tie lines between interconnected grids. Its control strategy is directly Determining the control effect plays an important role in the safe, reliable and high-quality operation of the power grid, and has important research value. [0003] For the provincial power grid, for a long time, the AGC control strategy has been mainly aimed at how to correct the regi...

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Application Information

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IPC IPC(8): H02J3/06
CPCH02J3/06
Inventor 赵霞张荣荣周桢钧颜伟余娟段磊
Owner CHONGQING UNIV
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