Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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計(jì)及無(wú)功控制設(shè)備時(shí)間尺度的LCC直流輸電控制域分析

來(lái)源:電工電氣發(fā)布時(shí)間:2017-10-19 13:19 瀏覽次數(shù):3
計(jì)及無(wú)功控制設(shè)備時(shí)間尺度的LCC直流輸電控制域分析
 
陳暉
(東南大學(xué) 電氣工程學(xué)院,江蘇 南京 210096)
 
    摘 要:當(dāng)大幅調(diào)節(jié)LCC 直流輸電有功功率時(shí),須計(jì)及各無(wú)功補(bǔ)償設(shè)備在響應(yīng)時(shí)間上的滯后性和時(shí)間尺度上的差異性。在各無(wú)功控制設(shè)備時(shí)間尺度分析的基礎(chǔ)上,給出了帶時(shí)間軸的直流輸送有功控制域的刻畫(huà)方法及域內(nèi)最優(yōu)調(diào)整曲線的計(jì)算方法,算例分析結(jié)果表明,只有直流有功功率調(diào)整曲線位于該域內(nèi)時(shí),才可保證穩(wěn)態(tài)下可靠的無(wú)功平衡,該方法提高了無(wú)功補(bǔ)償?shù)目刂谱灾餍院桶踩6瓤梢曅浴?/div>
    關(guān)鍵詞:無(wú)功平衡;時(shí)間尺度;LCC 直流輸電;控制域;無(wú)功補(bǔ)償
    中圖分類號(hào):TM721.1     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2017)10-0012-05
 
Analysis of LCC-HVDC Control Region Considering Time Scale of Reactive Power Control Equipment
 
CHEN Hui
(School of Electrical Engineering, Southeast University, Nanjing 210096, China)
 
    Abstract: When the active power of LCC-HVDC adjusted substantially the hysteresis of response time and the difference of time scale of reactive power compensation equipment should be considered. This paper gave a method to characterize the active power control region of HVDC with the time axis and to adjust the optimal curve in the region based on the time scale analysis of reactive power control equipment. The calculating-example analysis shows that only when the DC active power adjustment curve was in the region, the reliable reactive power balance could be ensured in steady state. This method improves the control autonomy of reactive power compensation and the visibility of security margin.
    Key words: reactive power balance; time scale; LCC-HVDC; control region; reactive power compensation
 
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