Power plant level automatic power generation control system applied load optimizing and distributing method and system

A technology of automatic power generation control and load optimization, applied in data processing applications, instruments, forecasting, etc., can solve problems such as long calculation time and poor real-time performance

Active Publication Date: 2015-11-25
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a load optimization distribution method for the plant-level automatic power generation control system of a thermal power plant to solve the problem of long calculation time and poor real-time performance when performing online load optimization distribution ...

Method used

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  • Power plant level automatic power generation control system applied load optimizing and distributing method and system
  • Power plant level automatic power generation control system applied load optimizing and distributing method and system
  • Power plant level automatic power generation control system applied load optimizing and distributing method and system

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Experimental program
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Effect test

Embodiment 1

[0039] The load optimal distribution method used in the plant-level automatic generation control system of thermal power plants can be based on the following figure 1 The plant-level load optimization distribution system shown is realized, in which the master and backup controllers are bidirectionally connected with the remote control device of the power plant, and are operated in a dual-machine hot standby mode, accepting the load command of the power grid, performing load optimization calculations, and then downloading the load through the input and output devices. Send load commands to the automatic control system of each unit, and at the same time return the relevant information of the unit to the remote control device according to the requirements of the power grid.

[0040] This method is used in the load optimization distribution method of the plant-level automatic power generation control system of thermal power plants. The implementation process is as follows figure ...

Embodiment 2

[0055] The load optimization distribution system used in the plant-level automatic power generation control system of thermal power plants includes the main and standby controllers and corresponding input and output devices; the main and standby controllers are used to receive the plant-wide load instructions issued by the The load distribution method described in Example 1 obtains the optimal load of each unit, sends it to the input and output device, and simultaneously receives the relevant information of the unit collected by the input and output device, and sends it to the remote control device; the input and output device It is used to issue the optimal load command to the corresponding unit DCS system and collect relevant operating information of the unit. The active and standby controllers are dual-machine hot standby, and are respectively bidirectionally connected with the telecontrol device.

[0056] The working principle and working process of this embodiment 2 are t...

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PUM

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Abstract

The invention discloses a power plant level automatic power generation control system applied load optimizing and distributing method. The method is carried out through the following steps: pre-classifying a plurality of sub-clusters of generator sets according the properties of the generator sets of the power plant; optimizing and distributing load to the plurality of sub-clusters of generator sets according to the principle of using the least amount of coals; attaining the best load state space of each generator set in each sub-cluster of the generator sets within an allowed load and storing best load state space in a database of a system; performing load distribution according to a speed regulation priority method or a coal consumption optimizing method so as to check the best load state space of the sub-clusters of generator sets and attaining the best load of all generator sets in the power plant with the attained best load of all machines transmitted to an automatic control system through a monitoring apparatus of a plant level AGC system. The invention further provides a system corresponding the method. According to the invention, the method is capable of effectively shortening the calculation and distribution time for load when a power plant comprises a great number of generator sets with vast type difference so as to fulfill the requirement of safety control to a power grid and to improve the authenticity and the accuracy of an optimization result.

Description

technical field [0001] The invention belongs to the field of plant-level load dispatching of thermal power plants, and mainly relates to a load optimization distribution method and system for a plant-level automatic power generation control system of thermal power plants. Background technique [0002] In order to meet the requirements of power grid energy-saving dispatching and reduce power plant energy consumption, the load distribution mode of some power plants has changed from unit automatic generation control (stand-alone AGC) to plant-level automatic generation control (plant-level AGC), that is, under the premise of satisfying the safe operation of the power system , The active power command of the whole plant is issued by the central adjustment, and each unit in the plant responds to the change of the grid load command according to its actual situation, so as to simplify the operation of the power plant and realize the optimal distribution of the load of each unit in t...

Claims

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Application Information

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IPC IPC(8): H02J3/46G06Q10/04G06Q50/06
Inventor 李兵牛洪海陈俊蔡丹蔡金华臧峰
Owner NR ELECTRIC CO LTD
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