Coordinated Optimization of Tourist Electric Bus Scheduling and VSC Power Dispatching Considering Transportation Influence and PV Accommodation

Abstract

Low voltage distribution networks (LVDNs) are facing challenges on power flow optimization considering the power fluctuation of large-scale PVs. DC interconnected LVDNs were proposed to enhance the capability of power flow dispatching. Tourist Electric Buses (TEBs) have a strong scheduling capability due to large battery capacity and sufficient parking time when waiting for travelers visiting. However, the scheduling of TEBs is limited by the requirement of SOC and the mobility time. This paper proposes a coordinated optimization method of TEBs and VSC power outputs in DC-interconnected LVDNs considering TEB schedule requirement and transportation influences on TEB mobility optimization, in order to fully utilize PV outputs. TSN model is established considering the characteristic of TEBs, in order to calculate the mobility time between charging piles and drop-off areas. An optimization model is developed considering power transfer capability of VSC, in order to increase PV accommodation. Simulations studies are performed to verify the proposed method.