本文選題：高壓直流輸電　切入點(diǎn)：逆變站　出處：《中國(guó)電機(jī)工程學(xué)報(bào)》2016年07期 　論文類型：期刊論文

【摘要】：特高壓直流大容量送電使交直流相互作用程度加劇,直流傳播逆變端交流電網(wǎng)擾動(dòng)及其對(duì)整流端電網(wǎng)的影響,已不容忽視。該文首先建立了直流異步聯(lián)網(wǎng)測(cè)試系統(tǒng);研究了逆變端交流電壓慢速起伏波動(dòng),以及快速跌落與恢復(fù)兩種動(dòng)態(tài)過程中,換流器觸發(fā)角以及直流電流的暫態(tài)響應(yīng)軌跡,揭示了直流傳播逆變端擾動(dòng)的機(jī)制;研究了整流站受擾功率響應(yīng)特性,以及交流電網(wǎng)強(qiáng)度、直流控制參數(shù)等因素對(duì)其影響。在此基礎(chǔ)上,針對(duì)哈密—鄭州?800 kV/8 000 MW特高壓直流輸電工程中,逆變端故障引發(fā)整流端過電壓沖擊威脅,提出了加強(qiáng)電網(wǎng)結(jié)構(gòu)和優(yōu)化網(wǎng)源穩(wěn)態(tài)無功配置的緩解措施,仿真結(jié)果驗(yàn)證了措施的有效性。
[Abstract]:AC-DC interaction is aggravated by UHV DC power transmission with large capacity. The disturbance of DC transmission inverter and its influence on rectifier network can not be ignored. Firstly, a DC asynchronous network testing system is established in this paper. In this paper, the transient response trajectories of converter trigger angle and DC current in the two dynamic processes of AC voltage fluctuation, fast drop and recovery are studied, and the mechanism of DC propagation inverter disturbance is revealed. The characteristics of disturbed power response of rectifier station, as well as the influence of AC power grid strength and DC control parameters on the power response of rectifier station are studied. In the 800 kV/8 #number0# MW UHV HVDC project, the inverter terminal fault causes the overvoltage impulse threat at the rectifier end. The mitigation measures to strengthen the power network structure and optimize the steady-state reactive power configuration of the network source are put forward. The simulation results verify the effectiveness of the measures.
【作者單位】： 中國(guó)電力科學(xué)研究院;
【基金】：國(guó)網(wǎng)公司科技項(xiàng)目資助(XT71-14-040) 國(guó)家自然科學(xué)基金項(xiàng)目(51207143) 國(guó)家863高技術(shù)基金項(xiàng)目(2011AA05A119)~~
【分類號(hào)】：TM721.1
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本文編號(hào)：1613924