A multi-step fast charging-based battery capacity estimation framework of real-world electric vehicles

Accurately evaluating battery degradation is not only crucial for ensuring the safe and reliable operation of electric vehicles (EVs) but also fundamental for their intelligent management and maximum utilization. However, the non-linearity, non-measurability, and multi-stress coupled operating conditions have posed significant challenges for...

Quantitative Comparison of the Empirical Lifetime Models for Power Electronic Devices in EV Fast Charging Application

The load profile of the power converter in EV Fast charging applications involves a short high-current pulse for rapid charging of the EV battery leading to thermal cycles on the power electronic devices. These thermal cycles can cause thermo-mechanical fatigues, which consume the power devices’ lifetime. Also, different timescales and magnitude...

Buck-Boost Flying Capacitor DC-DC Converter for Electric Vehicle Charging Stations

This paper proposes a new buck-boost flying-capacitor (FC) converter for the DC-DC stage of an Electric Vehicle (EV) fast charging station. The proposed converter is capable of delivering a wide output range of voltage to charge different battery configurations. The converter has two modes of operation, buck and boost. Thanks to this feature,...

Submodeling Method-Based Thermal Investigation of the Battery Energy Storage System Integrated in a 450 kW EV Charger

The electric vehicle (EV) market is expanding rapidly. However, the main barriers to EV adoption are high vehicle costs, range issues, and charging infrastructure. Meanwhile, energy storage systems (ESS) appear as a promising solution to preventing grid overload during charging and reducing infrastructure costs. In this paper, the integration of...

Integration of the Battery Energy Storage System in a 450 kW EV Charger

Despite the Covid-19 pandemic and supply chain challenges, including shortages of semiconductor chips, the electric vehicle (EV) market is expanding rapidly. Automobile manufacturers have been progressively developing business plans, considering electrification as an opportunity to acquire market share and preserve competitive advantages. The...

Physics Informed Neural Net Model for the Parameter Estimation of EV Charger

The impedance-based approach is promising to analyse the harmonic emission and stability of a converter-based system, e.g., an EV fast charging station. When extracting the accurate impedance model of an EV charger, the knowledge of the charger’s circuit and controller parameters is indispensable. However, EV chargers’ manufacturers do not...

A new input-parallel-output-series three-phase hybrid rectifier for heavy-duty electric vehicle chargers

The range anxiety and relatively long charging time issues of electric vehicles (EVs) have boosted the development of fast charging technology. With charging light EVs being the main focus in the past decade, a trend of promoting the charging infrastructures dedicated to heavy-duty EVs (HDEVs) such as E-trucks, and Ebuses has emerged to further...

An Overview on Medium Voltage Grid Integration of Ultra-fast Charging Stations: Current Status and Future Trends

The emphasis on clean and green technologies to curtail greenhouse gas emissions due to fossil fuel-based economies has originated the shift towards electric mobility. As on-road electric vehicles (EVs) have shown exponential growth over the last decade, so have the charging demands. The provision of charging facilities from the low-voltage...

12-pulse Rectifier with DC-Side Buck Converter for Electric Vehicle Fast Charging

This paper presents the study of a 100kW electric vehicle (EV) fast charger based on a 12-pulse rectifier cascaded with two buck-type DC-DC converters. The proposed circuit operates with a triangular current shaping method which considerably improves the current harmonics performance of the system. The studied circuit is particularly suited...

A New Input-Parallel-Output-Series Three-Phase Hybrid Rectifier for Heavy-Duty Electric Vehicle Chargers

This paper proposes a solution to the circuit topology of heavy-duty electric vehicle (HDEV) chargers. In light of the original hybrid rectifier, a new unidirectional Input-Parallel-Output-Series (IPOS) three-phase hybrid rectifier is proposed and analyzed. The IPOS topology is advantageous at ultra-high power rating to interface the next...

Optimal Battery Energy Storage Dispatch in Energy and Frequency Regulation Markets While Peak Shaving an EV Fast Charging Station

Battery Energy Storage Systems typically procure their primary revenues from regulated energy and ancillary services markets; nonetheless, they have great potential in supporting distribution network operators and their users. This paper evaluates the potential business case of battery storage systems integrating market application and services...

Electric Vehicle Charging with Multi-Port Converter based Integration in DC Trolley-Bus Network

DC traction networks that supply power to trolley-buses, tramcars and trains can be simultaneously used to integrate fast-charging stations for Electric Vehicles (EVs). This strategy improves the traction grid utilization of urban transportation systems. In addition, it offers a potential solution to the increasing requirement of charging...

Optimal Battery Energy Storage System Sizing for Demand Charge Management in EV Fast Charging Stations

The high pulsating demand of fast charging stations (FCS) may cause monthly demand charges to account for a significant fraction of a station's electric bill. To reduce these costs, demand charge management can be applied to suppress peak power demands at FCSs, also using battery energy storage systems (BESS). This paper proposes a multi...

Optimal Battery Energy Storage System Sizing in EV Fast Charging Applications: A Multi-objective Framework for Demand Charge Management at Fast Charging Stations using Genetic Algorithms

The need for proper fast charging infrastructures is one of the key challenges for the wide adoption of elec- trical vehicles (EV). The high pulsating demand of fast charging stations (FCS) together with high demand tariffs can cause monthly DSO demand charges to account for a significant fraction of a station’s electric bill. Therefore,...

Low Voltage AC-DC Converter Systems for Fast Charging Stations for Electric Vehicles

Fast charging technology has accelerated the growth of the electric vehicle(EV) market and attracted significant attention from the industry. Two-stage AC/DC converter system is one of the traditional fast-charging architectures consists of the front-end converter and back-end converter. Numerous researches have developed IGBT-based medium...

Electric Vehicle Fast Charging Needs in Cities and along Corridors

Fast charging is seen as a means to facilitate long-distance driving for electric vehicles (EVs). As a result, roll-out planning generally takes a corridor approach. However, with higher penetration of electric vehicles in urban areas, cities contemplate whether inner-city fast chargers can be an alternative for the growing amount of slow public...

The feasibility of fast charging in Dutch cities: The technological, economical, social and political factors explained

The introduction of electric vehicles (EVs) can significantly reduce greenhouse gas emissions, fossil fuel depletion and urban air pollution. The exponential growth of the EV market requires a significant expansion of the public charging infrastructure. This causes challenges especially in cities in terms of parking pressure, grid reinforcements...

Charging Stations for Urban Settings the design of a product platform for electric vehicle infrastructure in Dutch cities

This paper reflects the essential role of supportive infrastructure in the mass implementation of electric drive vehicle technology. A focus is placed on the development of comprehensive systems that provide efficient and diverse recharging solutions for vehicle drivers. Mass adoption of electric mobility will reflect advances in the vehicles...