Optimal distribution method and system for heat-engine plant plant-level loads

A technology of plant-level load and distribution method, applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of insignificant energy saving effect, not taking into account the differences of each unit, avoiding frequent reciprocating adjustment, and always saving energy. The effect of low consumption and reduction of life loss

Inactive Publication Date: 2013-06-05
CHINA SHENHUA ENERGY CO LTD +2
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Problems solved by technology

The AGC direct regulation method has played a positive and effective role in promoting the safe and stable operation of the power grid, but because this method distributes the load evenly to each unit without taking into account the differences be

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  • Optimal distribution method and system for heat-engine plant plant-level loads
  • Optimal distribution method and system for heat-engine plant plant-level loads
  • Optimal distribution method and system for heat-engine plant plant-level loads

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Embodiment Construction

[0021] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

[0022] From the introduction of the background technology, it can be seen that the plant-level load dispatching of thermal power plants in the prior art adopts the AGC dispatching method. However, this dispatching method mainly has the following problems: First, the single-unit AGC dispatching load adjustment frequency is too high, the reciprocating adjustment is frequent, the command is over-adjusted, and the actual unit cannot respond, which affects the operating economy and life loss of the unit; secondly, the single-unit AGC AGC dispatching cannot implement load optimization distribution according to unit economic differences. For the entire power grid, due to the large num...

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Abstract

The invention provides a distribution method and a system for heat-engine plant plant-level loads, wherein the method comprises the steps of obtaining load limit and load energy consumption properties of each generating set in multiple generating sets, according to the obtained load limit and the load energy consumption properties of each generating set and a planned total load value, calculating a load distribution plan, and according to the obtained load distribution plan, distributing loads for each generating set so as to meet the facts that the obtained loads distributed for each generating set is within the load limit of each generating set, the sum of the obtained loads of the multiple generating sets is equal to the plan total load value, and obtained total energy consumption of the multiple generating sets is the lowest. According to the technical scheme, optimization and load distribution of the plant-level generating sets can be automatically and reasonably conducted according to the load energy consumption properties, adjustment rates, load adjustment limits and operation conditions of the generating sets, and therefore the total energy consumption of the whole plant is enabled to be the lowest under the premise that the plan total load value is met.

Description

technical field [0001] The invention relates to the field of thermal power generation, in particular to a method and system for optimal load distribution at the plant level of a thermal power plant. Background technique [0002] The fossil energy used in thermal power generation is non-renewable energy. How to effectively utilize fossil energy (such as coal) in thermal power generation is a problem that needs to be solved worldwide. At present, the electric energy used in domestic production and life in my country mainly comes from (using coal) thermal power generation. Therefore, how to save energy and reduce emissions and effectively use limited coal resources is also the top priority for my country to achieve sustainable development. [0003] The prior art provides a scheme for arranging power generation plans according to the actual energy consumption level of thermal power units. In this scheme, the automatic generation control (Automatic Generation Control, AGC) dire...

Claims

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Application Information

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IPC IPC(8): H02J3/46
Inventor 孙月李立峰甘超齐杨建兴李利民赵伟祁镭丁健张天聪任煜鹏赵军卢建刚向德军
Owner CHINA SHENHUA ENERGY CO LTD
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