Integrated Bi-Directional Power Converter Solution For V2G Technology

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  • It can store electricity and also provide excess energy to power homes and network grids
  • The solution effectively supports AC-to-DC bidirectional power conversion

Electric transportation has been regarded as one of the key players in addressing global climate challenges.  According to the International Energy Agency, by 2030 there will be 125 million EVs touring around the world’s highways and byways. As EV adoption is on the rise, there is growing concern about the operation of current energy grid infrastructures.

The newly released integrated bi-directional power converter solution from Arrow Electronics for equipping electric vehicles (EVs) with a robust mobile energy charger is a step towards enabling clean energy. The solution is capable of both storing electricity and providing excess energy to power homes and network grids. Such vehicle-to-home (V2H) and vehicle-to-grid (V2G) capabilities help smoothen momentary spikes in electricity demand, capitalize on untapped energy sources during battery idle period and thus promote more sustainable and energy-efficient development of smart cities.

V2G and V2H offer both energy storage and contribution of excessive energy back to the network grid and community. With the bidirectional converter, EVs can be used to supply electricity to a house or a building which then help reduce pressure on the national supply grid.

Providing reliable power-efficiency

This bidirectional power converter solution consists of three key elements for implementing a scalable, cost-effective and energy-efficient converter: a high-efficiency bridgeless power factor correction (PFC), a V2G bi-directional charger and a communication module protocol (EVCC) in compliance with ISO15118 standard.

Compared to traditional silicon materials, the PFC and DC-DC power supply with silicon-carbide MOSFET technology results in less power loss (up to 96 per cent efficiency), smaller form factor (up to 50 per cent reduction) and lighter weight.  Additionally, the number of individual components utilized in this solution has been reduced by 20 per cent thus offering a more cost-effective system design.  The solution can support AC-to-DC bidirectional power conversion with AC voltage range from 200Vac to 265Vac and the DC voltage range from 250Vdc to 450Vdc.  The maximum output power is 6.6kW.

Core components of the solution

  • DSP control
  • PFC SW
  • CLLC SW
  • Isolated gate driver
  • Isolated DC-DC module
  • CAN
  • Isolator
  • ESD protection
  • Hi-Precision OP-AMP
  • Current sensor
  • EEPROM
  • Cap Tank

“We are excited to introduce the integrated power converter solution for enabling automotive providers to streamline and accelerate the design cycle of onboard bi-directional chargers for applications such as EVs, uninterruptible power supplies and solar systems,” said Jacky Wan, vice president of engineering, APAC at Arrow Electronics. “We continue to provide first-class engineering capability and drive sustainable energy innovation that brings environmental and economic benefits.”


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