發(fā)布時間：2018-02-14 20:44

  本文關(guān)鍵詞： 風電機組 無功電流 風電場 低電壓穿越　出處：《電氣應用》2014年23期 　論文類型：期刊論文

【摘要】：風電場低電壓穿越能力與風電機組在故障期間的響應特性、風電場集電系統(tǒng)、無功補償裝置性能和接入電網(wǎng)條件等因素密切相關(guān),其中故障期間單臺風電機組的無功電流特性尤為重要。為了分析故障過程中風電機組無功電流特性對風電場穩(wěn)定性的影響,基于通過驗證的風電機組模型,在電力系統(tǒng)仿真軟件DIgSILENT/PowerFactory中搭建了100 MW風電場的詳細模型,包括風電機組、箱式變電站、場內(nèi)饋線、主變壓器、無功補償裝置和送出線路等。在不同電網(wǎng)強度下,對比分析風電機組在故障過程中具備吸無功、發(fā)無功不同特性時,風電場在故障過程中的電壓分布、并網(wǎng)點有功和無功的暫態(tài)特性。研究結(jié)果表明,風電機組具備靈活的無功電流調(diào)節(jié)能力對風電場故障穿越能力的實現(xiàn)至關(guān)重要。
[Abstract]:The low voltage traversing capacity of wind farm is closely related to the response characteristics of wind turbine during failure, the power collecting system of wind farm, the performance of reactive power compensator and the condition of connecting to the power network, etc. In order to analyze the influence of reactive current characteristics of wind turbine on the stability of wind farm during the fault period, the model of wind turbine is used to analyze the influence of reactive current characteristics of wind turbine on the stability of wind farm. A detailed model of 100MW wind farm is built in the power system simulation software DIgSILENT/PowerFactory, including wind turbine, box substation, in-field feeder, main transformer, reactive power compensation device and power supply line. When wind turbine has different characteristics of reactive power and reactive power in fault process, the voltage distribution of wind farm in fault process, and the transient characteristics of active and reactive power of wind farm are analyzed. The results show that, when the wind turbine has different characteristics of reactive power and absorbing reactive power, the distribution of voltage and the transient characteristics of active and reactive power are analyzed. The flexible reactive current regulation ability of wind turbine is very important to the realization of wind farm fault traversing ability.
【作者單位】： 中國電力科學研究院;
【基金】：國家能源應用技術(shù)研究及工程示范項目(NY20110408-1)
【分類號】：TM46

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相關(guān)期刊論文 前10條

1 華澤嘉;高聚;陶維s，

本文編號：1511574