18doi:10.3969/j.issn.1009-3230.2023.11.004应用能源技术2023年第11期（总第311期）330MW火电机组深度调峰下AGC控制及优化苏玉强（国能宁夏石嘴山发电有限责任公司，宁夏石嘴山753600）摘要：通过对火电机组实际运行情况的综合分析，得知深度调峰模式下火电机组会频繁出现负荷指令变化等问题,且负荷变化波动大。由于传统PID控制回路响应能力较差，无法满足深度调峰模式下宽负荷段响应需求，导致单元机组协调控制系统各种弊端逐渐显现，如滞后大、多变量等。文章提出一种基于330MW火电机组深度调峰下的AGC控制及优化方案，根据机组所涵盖各控制系统的动态特征，再利用多变量模型辨识技术，搭建机组动态特性模型，获取最佳运行参数，为优化火电机组重要控制系统提供参考依据，以增强整个火电机组响应能力，实现AGC长期稳定运行。关键词：330MW火电机组；深度调峰；AGC控制；优化思路中图分类号：TM621.6AGCControlandOptimizationunderDeepPeakShaving(GuonengNingxiaShizuishanPowerGenerationCo.,Ltd.,Shizuishan753600,China)Abstract:Throughacomprehensiveanalysisoftheactualoperationofthermalpowerunits,itisfoundthatunderdeeppeakshavingmode,issuessuchasfrequentloadcommandchangesandlargeloadfluctuationoccurfrequently.DuetothepoorresponsecapabilityoftraditionalPIDcontrolloops,itcannotmeetthewideloadrangeresponserequirementsunderdeeppeakshavingmode,leadingtovariousdrawbacksinthecoordinatedcontrolsystemofindividualunits,suchaslargelagandmultivariableproblems.ThispaperproposesanAGCcontrolandoptimizationschemebasedondeeppeakshavingfor330MWthermalpowerunits.Byconsideringthedynamiccharacteristicsofvariouscontrolsystemscoveredbytheunitsandutilizingmultivariablemodelidentificationtechnology,adynamiccharacteristicmodeloftheunitsisconstructedtoobtaintheoptimaloperatingparameters.Thisprovidesareferencebasisforoptimizingtheimportantcontrolsystemofthermalpowerunits,enhancingtheoverallresponsecapabilityofthethermalpowerunits,andachievinglong-termstableoperationofAGC.Keywords:330MWthermalpowerunits;deeppeakshaving;AGCcontrol;optimizationapproach0引言针对330MW火电机组深度调峰的AGC控制及优化展开研究，为解决长期低负荷状态下火收稿日期：2023-09-10修订日期：2023-...
