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补偿风电扰动的供热机组快速变负荷控制方法 被引量:16

A Control Method of Rapid Load Change for Heat Supply Units Compensating Wind Power Disturbance
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摘要 电网消纳扰动性风电的能力是制约风电发展的瓶颈。传统火电机组负荷响应速率较低难以完成这一要求。供热机组热网中大量管道、换热器、散热器具有很大的蓄热能力,可以在短时间内利用其蓄热提高其负荷响应能力。在实验验证这一思路的基础上,通过对自动发电控制(AGC)负荷指令进行非线性多尺度分解,构造了供热机组负荷指令,针对典型供热机组简化非线性动态模型,设计了一种机组优化控制系统方案,可以在不影响热用户的前提下,充分利用供热热网蓄热,大幅度提高机组负荷响应速率,补偿风电随机性扰动。 The ability of absorbing the disturbance of wind power generation has become a bottleneck to the development of the wind power. Because of the lower load response rate, traditional thermal power units cannot meet the requirement. The pipe line, heat exchanger and radiator in the heat supply network of heat supply units have huge capacity of thermal storage, which can be used to improve the load response rate within a short time. Based on the idea of experimental verification, by nonlinear multi-scale decomposing of automatic generation control (AGC) load order, the load order of heat supply units is constructed. According to the simplified nonlinear dynamic model of typical heat supply units, the optimization control scheme for units is designed. The scheme can take full advantage of the thermal storage in the heat supply network, which can improve the load response rate of the units drastically and can compensate the stochastic disturbance of wind power generation without the influence on the heat consumer.
作者 刘鑫屏 田亮 王琪 LIU Xinping , TIAN Liang , WANG Qi (1. School of Control and Computer Engineering, North China Electric Power University, Baoding 071003, China 2. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, China)
出处 《电力系统自动化》 EI CSCD 北大核心 2014年第6期26-32,共7页 Automation of Electric Power Systems
基金 国家重点基础研究发展计划(973计划)资助项目(2012CB215203) 中央高校基本科研业务费专项资金资助项目(11QG73).
关键词 风电并网 供热机组 调峰 调频 蓄热 优化控制 wind power integration heat supply unit peak load regulation frequency regulation thermal storage optimization control
作者简介 刘鑫屏(1975-),女,通信作者,博士,副教授,主要研究方向:热力发电过程建模、软测量及大机组智能优化控制。E-mail:liuxinpingtyl@163.com 田亮(1976-),男,博士,副教授,主要研究方向:火电机组建模与状态参数软测量。E—mail:t10615@sina.com 王琪(1972-),男,高级工程师,主要研究方向:火电机组热工自动控制系统。E—mail:13604711972@qq.com
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