Pricing Method for Season of Use in Integrated Energy Park

doi:10.12096/j.2096-4528.pgt.21119

Abstract

Abstract:

Integrated energy park is the basic unit of new electric power system dominated by renewable energy. Depending on distributed generators, the energy production and consumption nearby and self-balance of park are achieved. The contradiction of seasonal load mismatch between distributed generators and users can be released by tapping demand response potential and stipulating different season of use (SOU) price. A pricing method for SOU price in integrated energy park was put forward accordingly. First of all, considering characteristics of load and demand response, users were classified by k-means clustering algorithm. Then, according to unbalance load of park, SOU periods were determined by k-means clustering algorithm. At last, the optimization model was established to stipulate SOU price of different types of users. As the case shown, based on this method, SOU price can promote local consumption of distributed generators efficiently and raise the utilization ratio of clean energy and overall economic benefit of park.

Key words: new power system, integrated energy park, distributed generator, season of use price, k-means clustering, demand response

CLC Number:

TK 01

Jiangwu DU, Xiaoqiang TANG, Zhiwei LUO, Dunnan LIU, Jixu CHEN, Erfeng XU, Sheng BI. Pricing Method for Season of Use in Integrated Energy Park[J]. Power Generation Technology, 2023, 44(2): 261-269.

Figures/Tables 9

Fig. 1 Monthly load of distributed generators and users

Fig. 2 Flow of user classification based on k-means clustering algorithm

Fig. 3 Load of distributed generators and users, and the unbalance load of park

Tab. 1 CH index with different number of user types

用户分类数量	2	3	4	5
CH指标值	255.8	237 705.1	181 753.1	159 034.7

Fig. 4 Monthly load of three types of users

Fig. 5 Price elasticity matrix of three types of users

Tab. 2 SOU periods and SOU price of different types of users

时段	月份	1类用户	2类用户	3类用户
枯	3—5月	0.506 9	0.613 3	0.557 6
平	2月、6—10月	0.557 6	0.674 7	0.613 3
丰	1月、11—12月	0.613 3	0.742 1	0.674 7

Fig. 6 Unbalance load of park before and after stipulating season of use price

Tab. 3 Changes before and after stipulating season of use price

指标	执行丰枯电价前	执行丰枯电价后	执行前后变化
供需不匹配度/%	9.6	5.8	-3.8
园区综合电价/[元/(kW∙h)]	0.65	0.61	-0.04

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