Research and application of heat storage compensation and coal energy correct in fossil fuel power plants

LUO Dehai1; ZHANG Changqing2; JIANG Lin3; LIU Zhenlin1; LI Hong1 1.Guizhou Pannan Power Plant

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Research and application of heat storage compensation and coal energy correct in fossil fuel power plants

更新时间：2025-09-28

- Research and application of heat storage compensation and coal energy correct in fossil fuel power plants
- Thermal Power Generation Vol. 42, Issue 1, Pages: 87-90(2013)
- 作者机构：
  
  1. 贵州盘南发电厂
  2. 西安热工研究院有限公司
  3. 贵州金元集团公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2013
- 稿件说明：
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LUO Dehai1, ZHANG Changqing2, JIANG Lin3, et al. Research and application of heat storage compensation and coal energy correct in fossil fuel power plants[J]. Thermal power generation, 2013, 42(1): 87-90.
DOI：

LUO Dehai1, ZHANG Changqing2, JIANG Lin3, et al. Research and application of heat storage compensation and coal energy correct in fossil fuel power plants[J]. Thermal power generation, 2013, 42(1): 87-90. DOI：

摘要

基于对锅炉蓄热机理的分析

提出了一种快速准确补偿锅炉蓄热的前馈控制策略

并给出了煤质校正的关键控制策略。将这些控制策略用于某300MW和600MW机组

300MW机组在以2%/min速率频繁升、降负荷过程中

控制系统将主蒸汽压力偏差控制在±0.4MPa内;600MW机组的煤种大幅偏离设计煤种时

控制系统将主蒸汽压力偏差控制在±0.4MPa内。结果表明

该控制策略可在快速响应电网自动发电控制(AGC)指令的同时

能够准确、及时地补充锅炉蓄热

提高机组运行参数的稳定性。

Abstract

Based on the analysis of heat storage mechanism

a feed-forward control strategy which can compensate the boiler heat storage quickly and accurately was presented

and the key control strategy for coal energy correct was proposed

too.These control strategies were adopted on a 300 MW and a 600 MW unit.For the former unit

during its frequent load ascending and descending process with a rate of 2%/min

the control system can keep the main steam pressure deviation within range of-0.4 MPa to 0.4 MPa.For the 600 MW unit

the control system can keep the main steam pressure deviation within this range when the fuel properties deviated far from that of the design coal.The results showed that

these control strategies can response the automatic generation control(AGC) demands quickly

and can compensate the boiler heat storage accurately and timely at the same time

improving the stability of the unit operation parameters.

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