基于序分量的孤島交直流混聯(lián)微電網(wǎng)三相解耦潮流算法
發(fā)布時(shí)間：2018-09-08 15:23
【摘要】：針對(duì)交直流混聯(lián)微電網(wǎng)這類(lèi)新型網(wǎng)絡(luò)的潮流分析問(wèn)題,建立了Droop型分布式電源以及AC/DC逆變器并網(wǎng)穩(wěn)態(tài)潮流模型,并根據(jù)并網(wǎng)點(diǎn)電壓對(duì)稱進(jìn)行三相、單相并網(wǎng)模型的相序分量轉(zhuǎn)換。利用序電流補(bǔ)償法將AC子網(wǎng)解耦為三序網(wǎng)絡(luò)且并行求解,顯著減小了問(wèn)題求解規(guī)模;進(jìn)一步建立了AC/DC逆變器兩側(cè)交流頻率和直流電壓耦合關(guān)系,有效解決了兩子網(wǎng)間功率平衡問(wèn)題。在序分量體系下提出了適用于直流微電網(wǎng)多種方式接入的孤島交直流混聯(lián)微電網(wǎng)三相解耦潮流算法,基于IEEE等標(biāo)準(zhǔn)配電系統(tǒng)的修改算例,驗(yàn)證了所提算法的有效性、適用性以及高計(jì)算效率。
[Abstract]:In order to solve the power flow analysis problem of a new type of network, such as AC / DC hybrid microgrid, the model of Droop distributed generation and AC/DC inverter grid-connected steady-state power flow is established, and the three-phase power flow is carried out according to the symmetry of the parallel voltage. Phase sequence component conversion of single phase grid-connected model. The sequential current compensation method is used to decouple the AC subnet into a three-sequence network and solve the problem in parallel, which significantly reduces the scale of solving the problem, and further establishes the coupling relationship between AC frequency and DC voltage on both sides of the AC/DC inverter. The problem of power balance between two subnetworks is solved effectively. In this paper, a three-phase decoupling power flow algorithm for isolated island AC / DC hybrid microgrid is proposed in the sequential component system. The validity of the proposed algorithm is verified by a modified example of standard distribution system such as IEEE. Applicability and high computational efficiency.
【作者單位】： 河海大學(xué)能源與電氣學(xué)院;國(guó)網(wǎng)無(wú)錫供電公司;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51277052,51507052) 中國(guó)博士后科學(xué)基金資助項(xiàng)目(2015M571653) 中央高�；究蒲袠I(yè)務(wù)費(fèi)資助項(xiàng)目(2015B02714)~~
【分類(lèi)號(hào)】：TM727;TM744
[Abstract]:In order to solve the power flow analysis problem of a new type of network, such as AC / DC hybrid microgrid, the model of Droop distributed generation and AC/DC inverter grid-connected steady-state power flow is established, and the three-phase power flow is carried out according to the symmetry of the parallel voltage. Phase sequence component conversion of single phase grid-connected model. The sequential current compensation method is used to decouple the AC subnet into a three-sequence network and solve the problem in parallel, which significantly reduces the scale of solving the problem, and further establishes the coupling relationship between AC frequency and DC voltage on both sides of the AC/DC inverter. The problem of power balance between two subnetworks is solved effectively. In this paper, a three-phase decoupling power flow algorithm for isolated island AC / DC hybrid microgrid is proposed in the sequential component system. The validity of the proposed algorithm is verified by a modified example of standard distribution system such as IEEE. Applicability and high computational efficiency.
【作者單位】： 河海大學(xué)能源與電氣學(xué)院;國(guó)網(wǎng)無(wú)錫供電公司;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51277052,51507052) 中國(guó)博士后科學(xué)基金資助項(xiàng)目(2015M571653) 中央高�；究蒲袠I(yè)務(wù)費(fèi)資助項(xiàng)目(2015B02714)~~
【分類(lèi)號(hào)】：TM727;TM744
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