Joint Clearing Method of Energy and Reserve Market of Power System with High Proportion Renewable Energy Considering Bilateral Participation of Source and Load

doi:10.12204/j.issn.1000-7229.2023.01.004

Abstract

Abstract:

The randomness and anti-peak shaving characteristics of wind and solar output make it more difficult for the power grid to absorb renewable generation. Using the flexible and adjustable characteristics of the source side and the load side, the bilateral participation rules of source and load are designed to guide the source and load to carry out bidirectional power coordination across time to support the efficient consumption of renewable energy. First, the basic rules and principles of bilateral participation of the source-load are sorted out, transaction subjects, varieties and models are clarified, and their participation rules are designed. Secondly, according to the bilateral participation rules of source and load, a joint optimal dispatch model of day-ahead energy and reserve is constructed taking into account the bilateral participation of source-load, so as to help the consumption of renewable energy and reduce the electricity cost of industrial users. Thirdly, to solve the problem of multi-scenario mixed integer programming, an improved progressive hedging decomposition algorithm is used to solve the problem, and the convergence of the model is ensured through the heuristic variable "fix-screen-relax". Finally, an example analysis is carried out on the basis of the IEEE 118-node system, which verifies the effectiveness of the proposed joint clearing model of energy and reserve in promoting energy consumption.

This work is supported by National Key R&D Program of China (No. 2018YFB0905200) and State Grid Corporation of China Research Program (No. SGNW0000DKJS2100269).

Key words: renewable power generation, source-load, electricity market, joint optimization, progressive hedging algorithm

CLC Number:

TM76

REN Jing, ZHOU Xin, CHENG Song, WANG Zhuoyu, ZHANG Xiaodong, TANG Zao, LIU Jichun. Joint Clearing Method of Energy and Reserve Market of Power System with High Proportion Renewable Energy Considering Bilateral Participation of Source and Load[J]. ELECTRIC POWER CONSTRUCTION, 2023, 44(1): 30-38.

Figures/Tables 11

Fig.1 The market framework for electricity generation and consumption

Fig.2 The details of progressive hedging decomposition

Fig.3 Typical output curves of wind, solar and demand

Table A1 Declaration information on the source side which participates in the bilateral market at 11:00

Table A2 Declaration information on the user side which participates in the bilateral market at 11:00

Fig.4 Clustered scenarios of load and renewable generation

Fig.5 The clearance result at 11:00 for the generation and demand side market

Table 1 The results of cost for different models (￥10k )

Fig.6 The unit commitment results for different cases

Fig.7 The convergence of different algorithms

Table 2 The solution of different algorithms

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