Real-Time Demand Side Management for Electric Vehicle Charging Systems in Smart Grids

Research output: ThesisMaster's Thesis

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Abstract

Demand side management for Electric Vehicle charging is essential for the electricity system operator to calculate peak load, peak time and peak shift to ensure system stability and security. Current studies mainly focus on charging behaviours such as charging speed, types and customers charging frequencies. However, there is a lack of methods to organize EV charging to positively influence the electricity system.
This research report develops a novel pricing scheme for EV charging and it can combine with smart charging methods to reflect the customers’ impact on electricity network planning and operating. First of all, a novel pricing scheme is designed by spot price and time of use tariff models. This pricing scheme can guide both EV users and network operators and benefit them financially, by calculating EV charging assets and operational fee. Then, a novel charging algorithm—smart charging method is introduced. This algorithm can help EV users to organize and accommodate EV charging type, speed, time and location, which can also help the network to save congestion and investment fees. These novel pricing scheme and charging method can induce EV users to cut the peak, fill the valley, improve electricity reliability and efficiency, optimise electricity using pattern which leads to demand side management of EV charging. The new algorithm is demonstrated on a small system with different EV charging features, and then on the IEEE 14 busbars system to illustrate the locational impact of EV smart charging.
This research provides a powerful tool to enable efficient EV charging, which can not only benefit EV users but also enable network operators to reduce the investment and operation needed to accommodate a large number EVs on their networks.
Original languageEnglish
QualificationMPhil
Awarding Institution
  • University of Bath
Supervisors/Advisors
  • Gu, Chenghong, Supervisor
Award date26 May 2021
Publication statusSubmitted - 5 May 2021

Keywords

  • electric vehicle
  • demand side management
  • spot price
  • charging strategy

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