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Recently, there has been significant research focus on smart cities and how to use resources efficiently. Parking space, in particular, is scarce in most metropolitan areas and intelligent systems are required to coordinate parking. This paper presents a wireless system for locating parking spots remotely via a smartphone, and a wireless sensor node which determines if parking spots are vacant or...
This paper proposes an energy management for fuel cell electric vehicle taking into account the fuel cell degradation during its lifetime. The aim of the study is to design a control strategy which manage a power converter in order to use the fuel cell system as a range extender by preventing the batteries state of charge to drop too quickly. The presented controller use both batteries state of charge...
A battery-ultracapacitor Hybrid Energy Storage System (HESS) combines the advantages of both Li-ion batteries and ultracapacitors. Li-ion batteries sustain a relatively long electric only driving range but degrade if exposed to high C-rates and large number of cycles. Ultracapacitors are robust, have a quasi infinite cycle life and can sustain highly dynamic power profiles. This paper proposes a HESS...
It is expected that the number of electric drive vehicles (EDVs) would grow rapidly in the coming years. Considering cars are parked over 92% of the time, the excess batteries capacity of EVs could be used to support power grid, while they are plugged into the grid. Although this technology, which is called vehicle to grid (V2G), has several benefit, vehicle to building (V2B) systems have a higher...
Aggregators in smart grid are business operators providing services to aggregate and visualize electricity information, balance demand and supply, reduce energy consumption, and do the other activities with Energy Management Systems (EMSs). An aggregator for Apartment Building Energy Management Systems (Apartment-BEMSs) balances demand and supply considering all households in its building. The buildings...
In this paper a novel multi-purpose converter for electric vehicles (EVs) is proposed. This topology, optimized for a full electric drive, satisfies propulsion requirements and allows single phase as well as three-phase AC charging. As compared with the onboard integrated chargers on the market today, this topology enables significant cost, weight and volume reductions. The proposed topology is theoretically...
In this paper, we present a system to estimate the health of a lead-acid car battery and warn the driver of upcoming battery failure in the near future. Most existing lead-acid battery state of health (SOH) estimation systems measure the battery impedance by sensing the voltage and current of a battery. However, current sensing is costly for parts and/or labor. A method to estimate SOH by sensing...
Electric vehicle battery modeling and state-of-charge prediction has gained a lot of importance with the growing range anxiety among electric vehicle users. The future of battery implementation in electric vehicles might be in their customized design according to specific journey conditions. As such, this paper highlights the application of a novel concept — Journey Mapping for a Ford Focus Electric...
This paper presents an approach of DC level 1 charging of an electric vehicle (EV) or plug-in hybrid electric vehicle (PHEV) making use of standalone solar photovoltaic (PV) system. In this approach it is proposed to use the DC power generated by solar panels to directly charge EV traction battery pack using solar MPPT controller algorithm and CHAdeMO DC fast charging protocol. A supervisory control...
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