Design and Experimental Results of Universal Electric Vehicle Charger Using DSP

The main issues caused by EV charging to the power grid include harmonics, voltage drop, system instability, system losses and grid overloading. [...]this paper presents design and development of a novel method, which is by applying voltage-oriented control (vOc) algorithm in battery charging of ele...

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Bibliographic Details
Published inTelkomnika Vol. 16; no. 4; pp. 1435 - 1444
Main Authors Al-Ogaili, Ali Saadon, Aris, Ishak bin Aris, Othman, Mohammed Lutfi, Azis, Norhafiz, Isa, Dino, Hoon, Yap
Format Journal Article
LanguageEnglish
Published Yogyakarta Ahmad Dahlan University 01.08.2018
Subjects
Algorithms
Batteries
Battery chargers
Bridges
Buses (vehicles)
Control algorithms
Control theory
Converters
Design
Digital signal processors
Efficiency
Electric power grids
Electric power systems
Electric vehicle charging
Electric vehicles
Energy
Power factor
Reactive power
Ripples
Theory
Voltage drop
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Summary:The main issues caused by EV charging to the power grid include harmonics, voltage drop, system instability, system losses and grid overloading. [...]this paper presents design and development of a novel method, which is by applying voltage-oriented control (vOc) algorithm in battery charging of electric bus.The power system of this work consists of three-phase PWM rectifier. [...]by using the constant-current charging technique, the charging efficiency of the battery can be further increased. [...]the technique is also capable of deciding whether to conveniently terminate the charging process based on charging time and change the numbers of battery [4-7]. (12) where Pis active power and Q is reactive power. Since the d-axis rotating reference is aligned with grid voltage vector, henceEq can be set at zero and q-axis current is set at zero under normal conditions tomaintain unity power factor (PF) at grid side converter. [...]Figure 11 shows the output dc current with 0.01 ripples, this value of ripples do not cause any harms to the battery in case of charging a battery of electric bus. [...]it is clear that the proposed control algorithm performs effectively in providing a constant output voltage and current for battery charging with minimal disturbance to the operating power system.
ISSN:1693-6930
2302-9293
DOI:10.12928/telkomnika.v16i4.7308