【摘要】：隨著傳統(tǒng)的集中式發(fā)電帶來(lái)的諸多問(wèn)題,如:輸電線路長(zhǎng),線路損耗大,電壓跌落,污染環(huán)境,向偏遠(yuǎn)地區(qū)或農(nóng)村供電困難等,分布式電源的出現(xiàn)能有效彌補(bǔ)這些缺陷。分布式發(fā)電技術(shù)可以將能源系統(tǒng)小型化和微型化,幫助用戶結(jié)合自身實(shí)際進(jìn)行相應(yīng)的調(diào)整,以使能源供給系統(tǒng)能夠充分滿足其需求,也提高了能源用戶積極參與這項(xiàng)提高能源效率、減少環(huán)境污染的能源改革事業(yè)之中。但是分布式電源并入配電網(wǎng)后,會(huì)對(duì)配電網(wǎng)的產(chǎn)生影響。通過(guò)介紹光伏、風(fēng)能、燃料電池和微型燃?xì)廨啓C(jī)發(fā)電系統(tǒng)的模型與發(fā)電原理,對(duì)分布式電源并網(wǎng)節(jié)點(diǎn)類型進(jìn)行的相應(yīng)處理,有利于對(duì)電力系統(tǒng)的運(yùn)行方式進(jìn)行分析與研究。分布式電源并入配電網(wǎng)后,傳統(tǒng)的潮流算法需要進(jìn)行優(yōu)化來(lái)滿足電網(wǎng)結(jié)構(gòu)的變化。分析幾種常見的傳統(tǒng)潮流算法的原理,如高斯賽德爾法、牛頓拉夫遜法、P-Q分解法和前推回代法。并對(duì)其進(jìn)行分析比較,并根據(jù)配電網(wǎng)的特點(diǎn)來(lái)選擇較為理想的潮流計(jì)算方法,即采用快速分解法計(jì)算含分布式電源的6kV配電網(wǎng)潮流,快速分解法是基于P-Q分解法的一種潮流計(jì)算方法。在含分布式電源的6kV配電網(wǎng)中,發(fā)現(xiàn)該電網(wǎng)存在小負(fù)荷支路系統(tǒng),快速分解法已不滿足使用條件,潮流計(jì)算的收斂性變差,甚至發(fā)散。因此需要對(duì)快速分解法進(jìn)行改進(jìn),即采用改進(jìn)快速分解法。通過(guò)采用IEEE30節(jié)點(diǎn)進(jìn)行算例分析,并用Matlab語(yǔ)言編制改進(jìn)快速分解法的迭代程序,隨后再用程序測(cè)試結(jié)果來(lái)體現(xiàn)改進(jìn)快速分解具有較強(qiáng)的實(shí)用性。
[Abstract]:With many problems caused by traditional centralized power generation, such as long transmission line, large line loss, voltage drop, pollution environment, difficult power supply to remote areas or rural areas, the emergence of distributed power supply can effectively make up for these defects. Distributed power generation technology can miniaturize and miniaturize the energy system, help users to adjust according to their own reality, so that the energy supply system can fully meet their needs, and also improve the active participation of energy users in the cause of energy reform to improve energy efficiency and reduce environmental pollution. However, when the distributed power supply is integrated into the distribution network, it will have an impact on the distribution network. By introducing the model and generation principle of photovoltaic, wind energy, fuel cell and micro gas turbine power generation system, the corresponding treatment of distributed power supply grid-connected node types is beneficial to the analysis and research of the operation mode of power system. After the distributed power supply is integrated into the distribution network, the traditional power flow algorithm needs to be optimized to meet the changes of the power grid structure. The principles of several common traditional power flow algorithms, such as Gao Si Sedell method, Newton Raphson method, P 鈮，

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