Optimal Scheduling of Park Integrated Energy System with P2G Waste Heat Recovery and Demand Response under Carbon-Green Certificate Trading Mechanism

doi:10.12204/j.issn.1000-7229.2023.03.003

Abstract

Abstract:

In order to further promote the renewable energy consumption and carbon emission reduction of the park integrated energy system (PIES), and optimize the total operation cost of the PIES, this paper proposes a PIES optimization scheduling model considering the recovery of waste heat from power to gas (P2G) and demand response under the carbon-green certificate trading mechanism. Firstly, the stepwise carbon trading mechanism and green certificate trading system are considered to promote the consumption of renewable energy and carbon emission reduction. Secondly, the P2G equipment to recover waste heat is introduced, and the electric-heat-gas coupling relationship is optimized to improve the system's renewable energy consumption and carbon emission reduction level. Then, a demand-side response model including reduced, transferred and substituted loads is established to guide users to change their energy use mode from high energy consumption and high pollution to low-carbon and sustainable. Finally, the PIES optimization scheduling model is constructed to minimize the sum of energy purchase cost, wind curtailment penalty cost, demand response compensation cost, stepped carbon trading cost and green certificate trading revenue. The simulation results show that the model can effectively promote the renewable energy consumption and carbon emission reduction and reduce the system operation cost.

Key words: park integrated energy system (PIES), power to gas (P2G), demand response, carbon trading, green certificate trading

CLC Number:

TM73

YUAN Xiyao, WANG Guantao, ZHU Ruoyuan, BAI Xingzhen, GE Leijiao, LI Guhui. Optimal Scheduling of Park Integrated Energy System with P2G Waste Heat Recovery and Demand Response under Carbon-Green Certificate Trading Mechanism[J]. ELECTRIC POWER CONSTRUCTION, 2023, 44(3): 25-35.

Figures/Tables 13

Fig.1 Structure diagram of a PIES

Fig.2 Mechanism of recovering P2G waste heat to promote wind power consumption

Fig.3 PIES wind power output and multiple load forecasting

Table 1 Time-of-use electricity price and natural gas price

Table 2 Equipment parameters

Table 3 Parameters of energy storage devices

Table 4 Actual carbon emission parameters

Table 5

Fig.4 Result of electrical and thermal power scheduling in Scenario 4

Fig.5 Result of electrical and thermal power scheduling in Scenario 5

Fig.6 Result of demand response scheduling in Scenario 6

Fig.7 Result of demand response scheduling in Scenario 7

Fig.8 Result of demand response scheduling in Scenario 8

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