本文選題：配電網(wǎng) + 多平衡節(jié)點(diǎn)��； 參考：《華北電力大學(xué)》2014年碩士論文

【摘要】：隨著分布式電源應(yīng)用的日益推廣,配電網(wǎng)不斷向智能化發(fā)展,配電網(wǎng)的結(jié)構(gòu)日趨復(fù)雜,這就要求潮流算法不僅能夠?qū)崿F(xiàn)三相計(jì)算,還能處理環(huán)網(wǎng)的情況。由于配電網(wǎng)規(guī)模大、節(jié)點(diǎn)多,在進(jìn)行全網(wǎng)的潮流計(jì)算時(shí)計(jì)算量相當(dāng)可觀,為了實(shí)現(xiàn)實(shí)時(shí)潮流計(jì)算,需要通過分布式并行計(jì)算來提高計(jì)算速度和效率。 根據(jù)分布式電源的基本原理和控制特性建立了分布式電源在配網(wǎng)潮流計(jì)算中的計(jì)算模型,新增PI節(jié)點(diǎn)和PQ(V)節(jié)點(diǎn),而不再局限于傳統(tǒng)的PQ節(jié)點(diǎn)和PV節(jié)點(diǎn)。為了更好地實(shí)現(xiàn)含有分布式電源以及饋線間環(huán)網(wǎng)的配網(wǎng)三相潮流計(jì)算,提出了多平衡節(jié)點(diǎn)的思想,改進(jìn)了傳統(tǒng)的前推回推法,收斂速度快,迭代次數(shù)少,與牛頓拉夫遜法的比較看出,該方法的收斂速度和計(jì)算精度完全滿足實(shí)際工程的需要。 搭建了分布式并行計(jì)算平臺(tái),形成分層加分布的并行計(jì)算結(jié)構(gòu)；設(shè)計(jì)了服務(wù)實(shí)例和管理模塊,實(shí)現(xiàn)任務(wù)的靈活部署和負(fù)載均衡；采用ZeroMQ通信技術(shù)構(gòu)建全局通信架構(gòu),實(shí)現(xiàn)端到端的N對(duì)N關(guān)系。利用該平臺(tái)將復(fù)雜的全網(wǎng)潮流計(jì)算分解為若干子任務(wù)派發(fā)給不同的計(jì)算機(jī),使計(jì)算速度和效率得到明顯改善,尤其適合大規(guī)模的配電網(wǎng)絡(luò)�；谠撈脚_(tái)的多平衡節(jié)點(diǎn)潮流算法已在實(shí)際工程中應(yīng)用。經(jīng)過算例驗(yàn)證表明,隨著節(jié)點(diǎn)規(guī)模的增大,該平臺(tái)的設(shè)計(jì)優(yōu)勢(shì)越發(fā)明顯,具有高效、實(shí)用的特點(diǎn)。
[Abstract]:With the increasing application of distributed generation, the distribution network is developing intelligently, and the structure of distribution network is becoming more and more complex, which requires that the power flow algorithm can not only realize the three-phase calculation, but also deal with the situation of loop network. Due to the large scale of distribution network and the large number of nodes, the calculation of power flow in the whole network is considerable. In order to realize real-time power flow calculation, it is necessary to improve the computing speed and efficiency through distributed parallel computing. According to the basic principle and control characteristics of distributed power supply, the calculation model of distributed power generation in power flow calculation of distribution network is established, adding Pi node and PQV) node, but not limited to traditional PQ node and PV node. In order to better realize the three-phase power flow calculation of distribution network with distributed power supply and feeder loop network, the idea of multi-balanced node is proposed, and the traditional forward push back push method is improved, the convergence speed is fast and the number of iterations is less. Compared with Newton-Raphson method, it is shown that the convergence rate and accuracy of the method can meet the needs of practical engineering. A distributed parallel computing platform is built to form a layered and distributed parallel computing structure. Service instances and management modules are designed to achieve flexible deployment and load balancing of tasks. The global communication architecture is constructed by using ZeroMQ communication technology. The end-to-end N-to-N relationship is realized. By using this platform, the complex whole network power flow calculation is decomposed into several sub-tasks and distributed to different computers, which improves the computing speed and efficiency obviously, and is especially suitable for large-scale distribution networks. The multi-balanced node power flow algorithm based on the platform has been applied in practical engineering. An example shows that with the increase of node size, the design advantage of the platform becomes more and more obvious, and the platform has the characteristics of high efficiency and practicality.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM744

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本文編號(hào)：1820207