本文選題：模塊化多電平換流器 + 高壓直流輸電��； 參考：《電力系統(tǒng)自動(dòng)化》2017年12期

【摘要】：模塊化多電平換流器(MMC)已成為柔性直流輸電系統(tǒng)的主流拓?fù)浣Y(jié)構(gòu),其主設(shè)備參數(shù)的設(shè)計(jì)對(duì)系統(tǒng)的投資和運(yùn)行性能具有決定性作用�；谀K化多電平換流器的高壓直流輸電(MMCHVDC)系統(tǒng)關(guān)鍵主設(shè)備參數(shù)包括聯(lián)接變壓器二次側(cè)額定電壓、變壓器漏抗、橋臂電抗、子模塊電容等,單個(gè)主設(shè)備參數(shù)的獨(dú)立設(shè)計(jì)忽略了不同設(shè)備多個(gè)參數(shù)之間的耦合特性。文中構(gòu)建了不同設(shè)備多個(gè)參數(shù)設(shè)計(jì)的約束方程組和目標(biāo)函數(shù),并提出了基于非線性規(guī)劃法對(duì)MMC-HVDC系統(tǒng)主設(shè)備參數(shù)設(shè)計(jì)的整體算法,該整體算法綜合考慮多個(gè)參數(shù)和不同設(shè)備設(shè)計(jì)原則之間的耦合特性,從而達(dá)到可靠的優(yōu)化設(shè)計(jì)結(jié)果。最后針對(duì)某MMC-HVDC系統(tǒng)工程進(jìn)行了參數(shù)優(yōu)化設(shè)計(jì),基于PSCAD/EMTDC的計(jì)算和仿真結(jié)果基本吻合,驗(yàn)證了所提算法的有效性。
[Abstract]:Modularized multilevel converter (MMC) has become the mainstream topology of the flexible DC transmission system. The design of the main equipment parameters plays a decisive role in the investment and operation performance of the system. The key main equipment parameters of HVDC system based on modularized multilevel converter include secondary rated voltage of connecting transformer, leakage reactance of transformer, reactance of bridge arm, capacitance of submodule, etc. The independent design of single main device parameters ignores the coupling characteristics between multiple parameters of different devices. In this paper, the constraint equations and objective functions for the design of multiple parameters of different equipments are constructed, and a global algorithm for the design of main equipment parameters of MMC-HVDC system based on nonlinear programming method is proposed. The whole algorithm takes into account the coupling characteristics of multiple parameters and different design principles of equipment, so as to achieve reliable optimal design results. Finally, the parameter optimization design of a MMC-HVDC system is carried out. The calculation results based on PSCAD / EMTDC are in good agreement with the simulation results, which verify the effectiveness of the proposed algorithm.
【作者單位】： 新能源電力系統(tǒng)國家重點(diǎn)實(shí)驗(yàn)室(華北電力大學(xué));直流輸電技術(shù)國家重點(diǎn)實(shí)驗(yàn)室(南方電網(wǎng)科學(xué)研究院有限責(zé)任公司);
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51507060) 中央高�；究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金資助項(xiàng)目(2016MS07)~~
【分類號(hào)】：TM46;TM721.1

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