Power transmission network and power distribution network coordinated dynamic economy scheduling method based on multi-parameter planning

A technology for economic dispatch and transmission network, which is applied in the direction of AC network voltage adjustment, AC network with the same frequency from different sources, AC network with energy trade/energy transmission authority, etc. And other issues

Active Publication Date: 2017-08-18
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

Since the transmission network and the distribution network are operated independently by their respective dispatch centers, the operation in

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  • Power transmission network and power distribution network coordinated dynamic economy scheduling method based on multi-parameter planning
  • Power transmission network and power distribution network coordinated dynamic economy scheduling method based on multi-parameter planning
  • Power transmission network and power distribution network coordinated dynamic economy scheduling method based on multi-parameter planning

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Embodiment Construction

[0090] The dynamic economic dispatching method for power transmission and distribution network coordination based on multi-parameter planning proposed by the present invention includes the following steps:

[0091] (1) Establish a dynamic economic dispatch model for transmission and distribution network coordination, which consists of objective functions and constraints, including:

[0092] (1-1) Objective function of dynamic economic dispatch model:

[0093] Taking the total power generation cost of the transmission network and distribution network as the objective function of dynamic economic dispatch is:

[0094]

[0095] In the above formula, T represents the set of dynamic economic dispatch times, G represents the set of nodes where the generator set is located in the transmission network or distribution network, DIST represents the set of distribution network numbers, pg i,t Represents the active power of the generator set connected to node i in the transmission or d...

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Abstract

The invention relates to a power transmission network and power distribution network coordinated dynamic economy scheduling method based on multi-parameter planning, which belongs to the technical field of electric power system operations. With the comprehensive considerations of the dynamic economy scheduling models of the power transmission network and the power distribution network as well as the coupling relationship between the power transmission network and the power distribution network, the power transmission and distribution coordinated dynamic economy scheduling model is established. For the proposed power transmission and distribution coordinated dynamic economy scheduling model, a multi-parameter planning theory is utilized and an iterative solving algorithm for the power transmission and distribution coordinated dynamic economy scheduling model is provided. The proposed algorithm possesses a good converging speed, suitable for the problem of power mismatching between the power transmission network and the power distribution network caused when renewable energy is accessed and can obtain the optimal solution to the global power transmission and distribution.

Description

technical field [0001] The invention relates to a dynamic economic dispatch method for power transmission and distribution network coordination based on multi-parameter planning, and belongs to the technical field of power system operation control. Background technique [0002] With a large number of distributed renewable energy connected to the distribution network, the net load of the distribution network changes drastically within the day, and has strong unpredictability, and the power between the transmission network and the distribution network changes rapidly. The traditional dynamic economic dispatch is performed independently by the transmission network and the distribution network. However, this method is prone to the problem of power mismatch at the transmission and distribution boundary after a large number of distributed renewable energy sources are connected. In addition, independent economic dispatch of transmission and distribution cannot obtain the global opt...

Claims

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Application Information

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IPC IPC(8): H02J3/00H02J3/06G06Q10/06G06Q50/06
CPCG06Q10/06312G06Q50/06H02J3/008H02J3/06H02J2203/20H02J3/00Y04S50/10G05F1/66Y02E60/00Y04S40/20H02J3/12G06F17/11
Inventor 吴文传张伯明孙宏斌蔺晨晖郭庆来王彬
Owner TSINGHUA UNIV
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