海上風(fēng)電場(chǎng)送出混合線路工頻過(guò)電壓和無(wú)功補(bǔ)償研究
施超，錢(qián)康，許文超，牛濤
(江蘇省電力設(shè)計(jì)院，江蘇 南京 211102)
摘 要： 介紹了采用長(zhǎng)距離高壓海底電纜的海上風(fēng)電場(chǎng)輸電系統(tǒng)電磁暫態(tài)模型，利用EMTP/EMTPE仿真軟件分析了高壓海底電纜+ 架空混合線路工頻過(guò)電壓，在此基礎(chǔ)上研究高壓并聯(lián)電抗器和低壓無(wú)功補(bǔ)償裝置容量，得到了海上風(fēng)電場(chǎng)無(wú)功補(bǔ)償配置方案。以某海上風(fēng)電場(chǎng)為例，對(duì)其工頻過(guò)電壓及無(wú)功補(bǔ)償進(jìn)行了綜合計(jì)算分析，驗(yàn)證了所提方案的可行性。
關(guān)鍵詞： 海上風(fēng)電場(chǎng)；海底電纜；混合線路；工頻過(guò)電壓；無(wú)功補(bǔ)償
中圖分類號(hào)：TM614；TM714.3 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2015)05-0020-05
Research on Frequency Over-Voltage and Reactive Power Compensation for Offshore Wind Farm with Mixed Cable-Overhead Line
SHI Chao, QIAN Kang, XU Wen-chao, NIU Tao
（Jiangsu Electric Power Design Institute, Nanjing 211102, China）
Abstract: Introduction was made to the power transmission system electromagnetism transient model of offshore wind farm adopting long-distance high-voltage submarine cable. The simulation software EMTP/EMTPE was adopted to analyze the frequency overvoltage of high-voltage submarine cable and overhead line. On the basis of this, the capacity of high-voltage shunt reactors and lowvoltage reactive compensators was studied to obtain the reactive compensation configuration plan of offshore wind farm. Taking certain coastal offshore wind farm for example, this paper carried out comprehensive analysis and calculation to the frequency overvoltage and reactive power compensation, which verifies the feasibility of the proposed plan.
Key words: offshore wind farm; submarine cable; mixed line; frequency over-voltage; reactive power compensation
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