Optimal Scheduling of Electric Vehicle Integrated Energy Station Using a Novel Many-Objective Stochastic Competitive Optimization Algorithm

Abstract

The construction of the Electric Vehicle Integrated Energy Station (EV-IES) is a prerequisite for the rapid development of the EV industry. However, how to optimize the operation of the EV-IES is a problem worthy of study. Therefore, this paper designs an EV-IES model with PV and Energy Storage System (ESS). Fully consider the peak-valley time-of-use electricity price, user traffic flow, PV output, and other factors. On this basis, the three objectives of the maximum daily revenue of the EV-IES, the minimum exchanged energy between the EV-IES and the Regional Power System (RPS), and the minimum pollutant emission are optimized at the same time. Secondly, this paper proposes a Many-objective Stochastic Competition Optimization (MOSCO) algorithm, which is utilized to assess the DTLZ1-7 benchmark functions and the optimization scheduling problem of EV-IES. By comparing its simulation results with those of five other optimization algorithms, it is evident that the MOSCO algorithm outperforms the other five in terms of IGD, GD, HV, and Spread values. This indicates the effectiveness of the MOSCO algorithm in addressing many-objective optimization problems. Finally, in order to illustrate the feasibility of designing the EV-IES model, three comparative cases were designed. The Pareto solutions of these cases were obtained using the MOSCO algorithm, and the Entropy-Technique for Order Preference by Similarity to Ideal Solution (ETOPSIS) method was applied to determine the optimal solution for each case. Compared to the traditional charging station (case 1), the daily revenue of the EV-IES increased by 27.97%. Pollutant emissions were reduced by 25.29%.

Keywords

• Electric vehicle
• EV integrated energy station
• many-objective optimal scheduling
• MOCSO algorithm