第 51 卷 第 23 期 電力系統(tǒng)保護(hù)與控制 Vol.51 No.23
2023 年 12 月 1 日 Power System Protection and Control Dec. 1, 2023
DOI: 10.19783/j.cnki.pspc.230284
考慮電能質(zhì)量的配電網(wǎng)增值服務(wù)雙層優(yōu)化模型
鐘 浩 1,2,舒 棟 1,2,張 磊 1,2,夏 鑫 1,2,董雪薇 1,2,吳 凡 1,2
(1.三峽大學(xué)梯級(jí)水電站運(yùn)行與控制湖北省重點(diǎn)實(shí)驗(yàn)室,湖北 宜昌 443002;
2.三峽大學(xué)電氣與新能源學(xué)院,湖北 宜昌 443002)
摘要:大規(guī)模分布式光伏接入使得配電網(wǎng)諧波污染嚴(yán)重,而諧波治理效果與網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)相關(guān),存在其他就近節(jié)
點(diǎn)“搭便車”的現(xiàn)象。為改善用戶的用電效率和提升配電網(wǎng)的經(jīng)濟(jì)效益,提出一種考慮電能質(zhì)量的配電網(wǎng)增值服
務(wù)雙層優(yōu)化模型。首先,采用支持向量機(jī)算法預(yù)測諧波源不同出力情況下負(fù)荷節(jié)點(diǎn)的諧波電壓畸變率。然后,建
立了配電網(wǎng)與需求用戶的購售電雙層優(yōu)化模型。上層以配電網(wǎng)運(yùn)營商作為主體,考慮網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)對(duì)電能質(zhì)量治
理效果和成本的影響,以配電網(wǎng)運(yùn)營商收益最大為目標(biāo),建立諧波電壓治理模型,制定不同電能質(zhì)量等級(jí)的電價(jià)。
下層以對(duì)電能質(zhì)量有需求用戶作為主體,根據(jù)不同電能質(zhì)量等級(jí)的電價(jià),用戶以運(yùn)行成本最小為目標(biāo),建立電能
質(zhì)量選購策略模型。最后采用 IEEE14 節(jié)點(diǎn)算例進(jìn)行分析驗(yàn)證,結(jié)果表明所提模型能夠更有針對(duì)性地提升電能質(zhì)
量,提高配電網(wǎng)的經(jīng)濟(jì)收益,并為用戶的差異化用電提供了解決方案。
關(guān)鍵詞:電能質(zhì)量;配電網(wǎng);增值服務(wù);雙層優(yōu)化
A two-layer optimization model of value-added service in a distribution network considering power quality
ZHONG Hao1, 2, SHU Dong1, 2, ZHANG Lei1, 2, XIA Xin1, 2, DONG Xuewei1, 2, WU Fan1, 2
(1. Hubei Provincial Key Laboratory for Operation and Control of Cascaded Hydro-power Station, China Three
Gorges University, Yichang 443002, China; 2. College of Electrical Engineering & New Energy,
China Three Gorges University, Yichang 443002, China)
Abstract: The access of large-scale distributed photovoltaic energy seriously increases the harmonic pollution of
distribution networks. The effect of harmonic control is related to the network topology and other nearby nodes
\"hitchhike\" phenomena exist. To improve the consumption efficiency of users and enhance the economic benefits of the
distribution network, a two-layer optimization model of value-added service considering power quality is proposed. First,
the support vector machine algorithm is used to predict the harmonic voltage distortion rate of load nodes in different
output conditions of harmonic sources. Then, a two-layer optimization model of purchasing and selling electricity
between the distribution network and demand users is established. The upper layer, which considers the influence of the
network topology structure on the power quality governance effect and cost, takes the maximum of distribution network
operator profit as the target. It takes the distribution network operator as the main body, builds the harmonic voltage
control model and establishes the electricity price for different power quality levels. The lower layer, which is based on
the price of a different power quality, takes the users aim to minimize the operational cost as the target. It takes the users
with differentiated power quality requirements as the main body and establishes the power quality purchasing strategy
model. Finally, this paper uses the IEEE14-node example analysis for verification, and the results show that the proposed
model can improve the power quality and the economic benefits of the distribution network, as well as providing a
solution for the differentiated consumption of users.
This work is supported by the National Natural Science Foundation of China (No. 52007103).
Key words: power quality; distribution network; value-added service; two-layer optimization
0 引言
在我國提出以“碳達(dá)峰、碳中和”為目標(biāo)的大
基金項(xiàng)目:國家自然科學(xué)基金項(xiàng)目資助(52007103);湖北省
自然科學(xué)基金聯(lián)合基金項(xiàng)目資助(2022CFD167)
背景下,以光伏為代表的清潔能源上網(wǎng)比例快速上
升[1-3]。大量電力電子設(shè)備的接入使得配電網(wǎng)諧波電
壓畸變率等電能質(zhì)量問題愈發(fā)嚴(yán)重[4-5]。配電網(wǎng)的電
能質(zhì)量不僅影響電網(wǎng)的安全、穩(wěn)定與經(jīng)濟(jì)運(yùn)行,而
且直接影響著用戶側(cè)用電設(shè)備的正常工作,一些需
要高精密設(shè)備裝置的行業(yè)如醫(yī)療、半導(dǎo)體制造等,