电力系统自动化
電力繫統自動化
전력계통자동화
AUTOMATION OF ELECTRIC POWER SYSTEMS
2015年
10期
22-27,111
,共7页
徐箭%施微%徐琪
徐箭%施微%徐琪
서전%시미%서기
风力发电%并网%动态频率响应%网络结构%幅频特性%频域分析
風力髮電%併網%動態頻率響應%網絡結構%幅頻特性%頻域分析
풍력발전%병망%동태빈솔향응%망락결구%폭빈특성%빈역분석
wind power generation%grid integration%dynamic frequency response%network structure%amplitude-frequency characteristic%frequency domain analysis
大规模随机波动的风电功率接入电网引起系统频率偏差,从而影响系统安全稳定运行。为了研究不同频率风电功率波动对系统频率偏差的影响,提出了考虑发电机特性、调速器特性、系统网络结构、负荷特性,含风电的电力系统频率响应频域分析模型。基于该模型推导了风电功率激励下的电力系统各节点频率响应传递函数的显式表达式。根据传递函数的幅频特性能准确反映不同频率风电功率波动激励下各节点的频率响应特性。将该模型应用于 IEEE 10机39节点系统,结合实测风电场功率波动数据进行了算例仿真,结果表明利用该模型能快速准确评估风电功率对系统各节点频率响应的影响。
大規模隨機波動的風電功率接入電網引起繫統頻率偏差,從而影響繫統安全穩定運行。為瞭研究不同頻率風電功率波動對繫統頻率偏差的影響,提齣瞭攷慮髮電機特性、調速器特性、繫統網絡結構、負荷特性,含風電的電力繫統頻率響應頻域分析模型。基于該模型推導瞭風電功率激勵下的電力繫統各節點頻率響應傳遞函數的顯式錶達式。根據傳遞函數的幅頻特性能準確反映不同頻率風電功率波動激勵下各節點的頻率響應特性。將該模型應用于 IEEE 10機39節點繫統,結閤實測風電場功率波動數據進行瞭算例倣真,結果錶明利用該模型能快速準確評估風電功率對繫統各節點頻率響應的影響。
대규모수궤파동적풍전공솔접입전망인기계통빈솔편차,종이영향계통안전은정운행。위료연구불동빈솔풍전공솔파동대계통빈솔편차적영향,제출료고필발전궤특성、조속기특성、계통망락결구、부하특성,함풍전적전력계통빈솔향응빈역분석모형。기우해모형추도료풍전공솔격려하적전력계통각절점빈솔향응전체함수적현식표체식。근거전체함수적폭빈특성능준학반영불동빈솔풍전공솔파동격려하각절점적빈솔향응특성。장해모형응용우 IEEE 10궤39절점계통,결합실측풍전장공솔파동수거진행료산례방진,결과표명이용해모형능쾌속준학평고풍전공솔대계통각절점빈솔향응적영향。
The frequency deviation caused by wind power fluctuations endangers the safe and stable operation of power system. A frequency domain model including governors,networks and load characteristics is developed to analyze the power system frequency response to the wind power fluctuations of different frequencies.Based on the proposed model,an explicit expression of the transfer function is obtained for evaluation of multiple wind power inputs and multiple node frequency outputs.The magnitude-frequency characteristic of the transfer function can accurately reflect the frequency response of different nodes to the wind power fluctuations.The proposed model is evaluated on the IEEE 10-unit 39-bus system,and combined with the measured data of wind power fluctuations,a simulation example is analyzed.The result validates that the model can evaluate the influence of wind power fluctuations on the system frequency response at all nodes efficiently and accurately.