Abstract:

With the rapid increase of the number of electric public transport and the vigorous development of photovoltaic energy,the construction of optical storage charging station has become a better solution.Aiming at the problem of improving the return rate of photovoltaic energy storage and reducing the cost of charging stations while large-scale access of electric bus,an optimized model of optical storage electric bus charging station with the lowest cost and the highest combined benefit of light storage is established.The algorithm of alternating direction multiplier method (ADMM) is introduced to transform the centralized optimization problem into the sub-optimization problem based on the bus and the optical storage,which reduces the computational complexity.Simulation by real data shows that the proposed model can effectively maximize the return of photovoltaic energy storage while reducing charging costs,and converges more quickly than centralized optimization algorithms.

Key words: electric bus, photovoltaic electric bus charging stations, alternating direction multiplier method (ADMM), distributed algorithms