人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
15期
105-108
,共4页
水电机组%电网频率%电网AGC%影响分析%应对措施%二滩电站
水電機組%電網頻率%電網AGC%影響分析%應對措施%二灘電站
수전궤조%전망빈솔%전망AGC%영향분석%응대조시%이탄전참
hydropower units%frequency of power grid%AGC of power grid%impact analysis%measures%Ertan Hydropower Station
根据国家电监会对于机组实施辅助服务的要求,结合四川电网内水电机组投入AGC的运行情况,主要针对二滩水电站机组参加四川电网AGC运行后带来的影响展开了分析。由于水电机组在低负荷频繁调节工况下会降低运行效率,在投入AGC后频繁跨越机组运行振动区或长时间在振动区边缘运行会加重水轮机的空化空蚀和水轮机叶片的振动,为此,提出了应与电网调度部门积极协调、严控机组检修质量、加强设备运行管理、合理安排机组运行方式等措施来改善机组运行状况,以保证机组既能满足辅助服务的要求,又能保证四川电网的需求,从而使机组安全稳定运行。
根據國傢電鑑會對于機組實施輔助服務的要求,結閤四川電網內水電機組投入AGC的運行情況,主要針對二灘水電站機組參加四川電網AGC運行後帶來的影響展開瞭分析。由于水電機組在低負荷頻繁調節工況下會降低運行效率,在投入AGC後頻繁跨越機組運行振動區或長時間在振動區邊緣運行會加重水輪機的空化空蝕和水輪機葉片的振動,為此,提齣瞭應與電網調度部門積極協調、嚴控機組檢脩質量、加彊設備運行管理、閤理安排機組運行方式等措施來改善機組運行狀況,以保證機組既能滿足輔助服務的要求,又能保證四川電網的需求,從而使機組安全穩定運行。
근거국가전감회대우궤조실시보조복무적요구,결합사천전망내수전궤조투입AGC적운행정황,주요침대이탄수전참궤조삼가사천전망AGC운행후대래적영향전개료분석。유우수전궤조재저부하빈번조절공황하회강저운행효솔,재투입AGC후빈번과월궤조운행진동구혹장시간재진동구변연운행회가중수륜궤적공화공식화수륜궤협편적진동,위차,제출료응여전망조도부문적겁협조、엄공궤조검수질량、가강설비운행관리、합리안배궤조운행방식등조시래개선궤조운행상황,이보증궤조기능만족보조복무적요구,우능보증사천전망적수구,종이사궤조안전은정운행。
According-to-the-SERC's-requirements-for-implementing-auxiliary-service-of-units-,-the-impact-of-AGC-operation-in-Sichuan-Power-Grid-of-Ertan-Hydropower-Station-on-its-units-is-analyzed-according-to-the-operation-situation-of-AGC-.As-the-fre-quent-adjustment-of-hydropower-units-at-low-load-conditions-will-reduce-the-operating-efficiency-,-in-the-condition-of-AGC-opera-tion,-the-units-frequently-operate-beyond-operation-vibration-zone-or-at-boundary-of-vibration-zone-,-which-could-result-in-the-ag-gravation-of-turbine-cavitations-and-its-blade-vibration-.Thus,-the-measures-for-improving-the-unit-operation-are-put-forward-,-in-cluding-actively-coordinating-with-dispatching-department-of-power-grid-,-strictly-controlling-the-maintenance-quality-of-units-,-strengthening-operation-management-of-equipments-,-and-rationally-arranging-operating-mode-of-units-to-ensure-the-units-meet-both-requirements-for-auxiliary-service-and-Sichuan-Power-Grid-,-so-as-to-make-sure-the-safe-and-stable-operation-of-the-units-.