Abstract
As the number of EVs is increasing modern methods are required to understand their impact to the power grid (operators and users). In order to reduce/manage fluctuations on voltage stability and angle stability there is a need for a management control strategy. This paper presents an energy management concept of Charging Station System (CSS) to charge or discharge power of EVs in different situations while retaining system integrity. A suitable objective function is formulated of frequency deviation and voltage deviation on the optimal operation of the charging station are evaluated by formulating and solving the optimisation problem using mixed integer linear programming. The results show that EVs act as a regulator of the microgrid which can control their participation role by discharging active or reactive power in mitigating frequency deviation and/or voltage deviation. The optimisation algorithm is evaluated by formulating and solving the optimisation problem using mixed integer linear programming. Case studies are used to show the viability of the proposed energy management concept.
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Abbreviations
- CSA:
-
Charging station agency
- CSO:
-
Charging station operator
- CSS:
-
Charging station systema
- EMS:
-
Energy management shell
- EVA:
-
Electric vehicle agency
- EVO:
-
Electric vehicle operator
- EVs:
-
Electric vehicles
- FAN:
-
Frequency above nominal
- FBN:
-
Frequency below nominal
- FN:
-
Nominal frequency
- FOA:
-
Frequency over above nominal
- FOB:
-
Frequency over below nominal
- MGO:
-
Microgrid operator
- PES:
-
Power electronic shell
- PMS:
-
Power management shell
- RS:
-
Recharging socket
- RSA:
-
Recharging socket agency
- VAN:
-
Voltage above nominal
- VBN:
-
Voltage below nominal
- VN:
-
Nominal voltage
- VOA:
-
Voltage over above nominal
- VOB:
-
Voltage over below nominal
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Alkhafaji, M., Luk, P., Economou, J. (2017). Charging and Discharging Strategy of Electric Vehicles Within a Hierarchical Energy Management Framework. In: Li, K., Xue, Y., Cui, S., Niu, Q., Yang, Z., Luk, P. (eds) Advanced Computational Methods in Energy, Power, Electric Vehicles, and Their Integration. ICSEE LSMS 2017 2017. Communications in Computer and Information Science, vol 763. Springer, Singapore. https://doi.org/10.1007/978-981-10-6364-0_70
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