【摘要】：分布式電源大量并入配電網(wǎng)所帶來的電壓問題日益顯著,儲(chǔ)能系統(tǒng)擁有靈活的功率調(diào)節(jié)能力,使其成為管理配電網(wǎng)電壓的有效手段。針對(duì)有源配電網(wǎng)儲(chǔ)能選址問題,該文提出時(shí)序靈敏度計(jì)算方法,從改善電壓的角度深入研究儲(chǔ)能系統(tǒng)最佳選址及配置。該方法首先以節(jié)點(diǎn)電壓偏移量作為權(quán)重因子,對(duì)傳統(tǒng)單一時(shí)間斷面下的兩節(jié)點(diǎn)間靈敏度指標(biāo)做出改進(jìn);其次,區(qū)分了有源配電網(wǎng)電壓偏移節(jié)點(diǎn)相反的調(diào)壓需求;第三,考慮不同時(shí)段在靈敏度計(jì)算中的不同重要性,基于時(shí)序模型提出了節(jié)點(diǎn)的時(shí)序靈敏度指標(biāo);第四,計(jì)及了不同運(yùn)行方式對(duì)靈敏度計(jì)算的影響,提高了儲(chǔ)能配置方案在配網(wǎng)不同運(yùn)行方式下的適應(yīng)性;最后,采用遺傳算法求解了時(shí)序綜合靈敏度計(jì)算下的儲(chǔ)能優(yōu)化配置容量。文中以改進(jìn)的IEEE33節(jié)點(diǎn)系統(tǒng)及實(shí)際配電系統(tǒng)為算例進(jìn)行了仿真研究,仿真結(jié)果表明:所提方法充分考慮了有源配電網(wǎng)的多種特點(diǎn),有效提高了儲(chǔ)能對(duì)有源配電網(wǎng)電壓的支撐水平,提高了其電壓調(diào)節(jié)的針對(duì)性,并兼顧了不同節(jié)點(diǎn)的調(diào)壓需求;且儲(chǔ)能配置方案適應(yīng)性強(qiáng),滿足了配電網(wǎng)多種運(yùn)行方式下的電壓控制需求。
[Abstract]:The voltage problem caused by the large amount of distributed generation being incorporated into the distribution network is becoming more and more obvious. The energy storage system has flexible power regulation ability, which makes it an effective means to manage the distribution network voltage. In order to solve the problem of energy storage location in active distribution network, a sequential sensitivity calculation method is proposed in this paper. The optimal location and configuration of energy storage system are studied from the point of view of improving voltage. In this method, firstly, the node voltage offset is used as the weight factor to improve the sensitivity index between two nodes under the traditional single time section; secondly, the voltage offset node of active distribution network is distinguished from the opposite voltage regulation requirements; third, Considering the different importance of different time periods in sensitivity calculation, the time series sensitivity index of nodes is proposed based on the time series model. Fourthly, the influence of different operation modes on sensitivity calculation is considered. The adaptability of the energy storage configuration scheme under different operation modes of distribution network is improved. Finally, genetic algorithm is used to solve the optimal configuration capacity of energy storage under the time sequence synthesis sensitivity calculation. The simulation results of the improved IEEE33 node system and the actual distribution system show that the proposed method fully takes into account the various characteristics of the active distribution network and effectively improves the support level of the energy storage to the active distribution network voltage. It improves the pertinence of voltage regulation and takes into account the voltage regulation requirements of different nodes, and the energy storage configuration scheme is adaptable to meet the needs of voltage control under various operation modes of distribution network.
【作者單位】： 上海電力學(xué)院電氣工程學(xué)院;國網(wǎng)浙江省電力公司嘉興供電公司;
【基金】：國家自然科學(xué)基金項(xiàng)目(51407113) 上海綠色能源并網(wǎng)工程技術(shù)研究中心項(xiàng)目(13DZ2251900)~~
【分類號(hào)】：TM727

【相似文獻(xiàn)】

相關(guān)期刊論文 前4條

1 雷良?xì)J;普通無源網(wǎng)絡(luò)的大變化靈敏度計(jì)算[J];南昌大學(xué)學(xué)報(bào)(工科版);1986年04期

2 余旭陽,王成山;基于軌跡靈敏度的能量裕度靈敏度解析算法[J];湖南電力;2005年03期

3 李柳;邵富群;;電磁層析成像中閾值靈敏度計(jì)算方法的實(shí)現(xiàn)[J];工業(yè)計(jì)量;2011年03期

4 傅豐林，諶駿;求耦合表的簡便方法[J];西安電子科技大學(xué)學(xué)報(bào);1995年03期

，

本文編號(hào)：2225671