配電網(wǎng)負(fù)荷接入最大合理供電半徑簡(jiǎn)化計(jì)算
林大增，陳建聰，廖劍波，陳波，王蕙
(國網(wǎng)福州供電公司經(jīng)濟(jì)技術(shù)研究所，福建 福州 350009)
摘 要：針對(duì)業(yè)擴(kuò)負(fù)荷接入點(diǎn)選擇主觀性強(qiáng)及大范圍饋線級(jí)時(shí)序潮流校驗(yàn)暫時(shí)難以施行的現(xiàn)狀，提出了一種配電網(wǎng)負(fù)荷接入最大合理供電半徑的簡(jiǎn)化計(jì)算方法，旨在求取最大半徑以指導(dǎo)負(fù)荷接入點(diǎn)選取。引入了負(fù)荷矩、等效節(jié)點(diǎn)和等效供電半徑等概念以簡(jiǎn)化計(jì)算，基于電壓降計(jì)算給出了求解最大半徑的思路及過程。在 10 kV 線路實(shí)例中應(yīng)用所提方法進(jìn)行最大合理供電半徑的計(jì)算，所提方法適用于各種計(jì)算情形，結(jié)果可指導(dǎo)負(fù)荷接入點(diǎn)選取。
關(guān)鍵詞： 配電網(wǎng)；負(fù)荷接入；供電半徑；負(fù)荷矩；等效節(jié)點(diǎn)
中圖分類號(hào)：TM714 ；TM715 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2023)10-0007-05
Simplified Calculation of Maximum Reasonable Supply Radius for
Distribution Network Load Access
LIN Da-zeng, CHEN Jian-cong, LIAO Jian-bo, CHEN Bo, WANG Hui
（State Grid Fuzhou Electric Power Supply Company Institute of Economics and Technology, Fuzhou 350009, China）
Abstract: In view of the fact that the selection of load access points for business expansion is highly subjective and the large-scale feeder-level time-series power flow verification is temporarily difficult to implement, a simplified calculation method for the maximum reasonable supply radius of distribution network load access is proposed, aiming at obtaining the maximum radius to guide the selection of load access points. The paper introduces the concept of load moment, equivalent node and equivalent supply radius to simplify the calculation,and gives out the idea and process of solving the maximum radius based on the voltage drop calculation. The proposed method is applied to the calculation of the maximum reasonable supply radius in a 10 kV line example, and it verifies that this method is suitable for various calculation situations and its results can guide the selection of load access points.
Key words: distribution network; load access; supply radius; load moment; equivalent node
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