Method for optimizing electric-quantity-constrained monthly unit commitment and based on induction target function

A technology of unit combination and objective function, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems that the calculation efficiency and accuracy cannot meet the optimal allocation of power generation resources of power grid companies, strict constraints, and difficult optimization

Active Publication Date: 2013-09-25
TSINGHUA UNIV
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Problems solved by technology

However, this method aims to minimize the deviation between the power generation of the unit and the expected power. It can only ensure that the power generation of the unit is relatively close to the expected power on the whole, and cannot guarantee that the optimization result strictly meets the power constraints of each unit.
The optimization of the mo...

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  • Method for optimizing electric-quantity-constrained monthly unit commitment and based on induction target function
  • Method for optimizing electric-quantity-constrained monthly unit commitment and based on induction target function
  • Method for optimizing electric-quantity-constrained monthly unit commitment and based on induction target function

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Embodiment

[0151] Taking a provincial power grid as an example to illustrate the monthly unit combination optimization method with electricity constraints proposed by the present invention, and verify the effect achieved by the present invention:

[0152] (1) Prepare the basic data of unit combination;

[0153] The unit combination basic data refers to the data for constructing the monthly unit combination planning mathematical model such as the operating characteristic data of the generator set, the monthly load forecast data, the contract power of each unit in the future month, the power grid topology data, and the optimized parameter data;

[0154] The provincial power grid has 480 nodes and 111 generator sets. First, obtain the operating characteristic data of the generator set, monthly load forecast data, contract power of each unit in the future month, power grid topology data and optimization parameter data; the specific data will not be repeated;

[0155] (2) Construct the mathe...

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Abstract

The invention discloses a method for optimizing electric-quantity-constrained monthly unit commitment and based on an induction target function and belongs to the technical field of power dispatching automation. The method includes building a mathematical model of a monthly unit commitment plan according to unit commitment basic data, building a mathematical model of a loose monthly unit commitment plan and calculating the model to obtain the loose monthly unit commitment plan, counting the number of start-stop variables with the value as 0 or 1 in the loose monthly unit commitment plan, building the induction target function of the mathematical model of the loose monthly unit commitment plan, conducting iteration optimization till the number of the start-top variables with the value as 0 or 1 stops increasing, adopting the induction target function to obtain the monthly unit commitment plan, conducting further optimization if a deviation factor of the monthly unit commitment plan is larger than a deviation threshold and finishing optimization otherwise. The method can be used for optimizing the electric-quantity-constrained monthly unit commitment plan, calculation efficiency is remarkably improved, and the method has important practical significance and good application prospects.

Description

technical field [0001] The invention belongs to the technical field of electric power dispatching automation, and in particular provides an optimization method for monthly unit combination with electricity constraints based on an induced objective function. Background technique [0002] Power dispatching is an important means for the power grid to adopt various optimization control technologies, coordinate various power generation resources, maintain the balance between supply and demand, and ensure the safe and economical operation of the power grid. The essence of power dispatching work is a kind of control problem of coordinating and arranging power production from the time and space dimensions under the condition of limited power generation and transmission resources within a certain time scale. According to different time scales, it can be divided into scheduling problems such as annual, monthly, day-ahead, intraday, and real-time. Scheduling problems with different tim...

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Application Information

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IPC IPC(8): G06F19/00
Inventor 白杨钟海旺王鹏汪洋夏清康重庆
Owner TSINGHUA UNIV
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