高壓直流換流變抽頭控制策略對(duì)換流閥損耗的影響研究
趙中原1，瞿少君2，包順先1，程璐璐1
1 南京南瑞繼保電氣有限公司，江蘇 南京 211102；
2 南方電網(wǎng)超高壓輸電公司貴陽(yáng)局，貴州 貴陽(yáng) 550000
摘 要： 針對(duì)貴廣直流輸電系統(tǒng)工程，分析換流變抽頭定電壓控制和定觸發(fā)角控制策略，研究了兩種不同模式下?lián)Q流閥損耗變化規(guī)律。根據(jù)IEC 61803標(biāo)準(zhǔn)和高壓直流穩(wěn)態(tài)運(yùn)行規(guī)律，建立了高壓直流運(yùn)行工況參數(shù)與換流閥損耗直接數(shù)學(xué)關(guān)系，并給出了兩種不同抽頭控制模式下運(yùn)行工況參數(shù)與換流閥損耗的工程換算用數(shù)學(xué)公式，為高壓直流換流站電壓控制模式選擇及換流器單元長(zhǎng)期安全穩(wěn)定運(yùn)行提供了理論基礎(chǔ)與依據(jù)。
關(guān)鍵詞： 高壓直流；換流閥；抽頭控制；損耗關(guān)系
中圖分類號(hào)：TM403.4 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2013)03-0013-03
Study of Impacts of High-Voltage DC Current Converter Transformer Tapping Control Strategy on Converter Valve Losses
ZHAO Zhong-yuan1, QU Shao-jun2, BAO Shun-xian1, CHENG Lu-lu1
1 Nari-Relays Electric Co., Ltd, Nanjing 2111 02, China;
2 Southern Power Grid EHV Power Transmission Company Guiyang Bureau, Guiyang 550000, China
Abstract: Aiming at Gui-Guang DC power transmission system project, this paper analyzed the fixed voltage control of converter transformer tapping and the fixed trigging angle control strategy, studying converter valve losses changing rules under two kinds of different modes. Based on standard IEC 618 03 and high-voltage DC stable operation rules, this paper established the direct mathematic relationship of high-voltage DC operation working condition parameters with converter valve losses and gave the engineering converting mathematic formulas of operation working condition parameters and converter valve losses under two kinds of different tapping control modes, to provide theoretical foundation bases for high-voltage DC converting station voltage control mode selection and converter unit long-time safe and stable operation.
Key words: high-voltage DC; converter valve; tapping changer control; loss relation
參考文獻(xiàn)
[1] IEC 61803：1999 Determination of power losses in high-voltage direct current (HVDC)converter stations[S].
[2] Ambra Sannino, Giovanna Postiglione, Math H J Bollen. Feasibility of a DC Network for Commercial Facilities[J]. IEEE Transactions on Industry Applications, 2003, 39(5)：1499-1507.
