本文關(guān)鍵詞： 風(fēng)電機(jī)組 無(wú)功電流 風(fēng)電場(chǎng) 低電壓穿越　出處：《電氣應(yīng)用》2014年23期 　論文類型：期刊論文

【摘要】：風(fēng)電場(chǎng)低電壓穿越能力與風(fēng)電機(jī)組在故障期間的響應(yīng)特性、風(fēng)電場(chǎng)集電系統(tǒng)、無(wú)功補(bǔ)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(tái)風(fēng)電機(jī)組的無(wú)功電流特性尤為重要。為了分析故障過(guò)程中風(fēng)電機(jī)組無(wú)功電流特性對(duì)風(fēng)電場(chǎng)穩(wěn)定性的影響,基于通過(guò)驗(yàn)證的風(fēng)電機(jī)組模型,在電力系統(tǒng)仿真軟件DIgSILENT/PowerFactory中搭建了100 MW風(fēng)電場(chǎng)的詳細(xì)模型,包括風(fēng)電機(jī)組、箱式變電站、場(chǎng)內(nèi)饋線、主變壓器、無(wú)功補(bǔ)償裝置和送出線路等。在不同電網(wǎng)強(qiáng)度下,對(duì)比分析風(fēng)電機(jī)組在故障過(guò)程中具備吸無(wú)功、發(fā)無(wú)功不同特性時(shí),風(fēng)電場(chǎng)在故障過(guò)程中的電壓分布、并網(wǎng)點(diǎn)有功和無(wú)功的暫態(tài)特性。研究結(jié)果表明,風(fēng)電機(jī)組具備靈活的無(wú)功電流調(diào)節(jié)能力對(duì)風(fēng)電場(chǎng)故障穿越能力的實(shí)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(guó)電力科學(xué)研究院;
【基金】：國(guó)家能源應(yīng)用技術(shù)研究及工程示范項(xiàng)目(NY20110408-1)
【分類號(hào)】：TM46

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本文編號(hào)：1511574