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However, simulating multiple high-frequency EV chargers real-time in small steps is a significant challenge due to the need for detailed device-level modeling of power electronic converters (PECs) and accurate interactions.
Cpu speed for fpga simulation Offline#
This can reduce test costs and shorten the development cycle compared with offline simulation. In addition, real-time simulation with hardware-in-the-loop (HIL) simulation can realize joint simulations of an EV charging station model and an actual control prototype. These can accelerate the design of control and protection systems. Real-time simulation plays an essential role in the study of the electromagnetic transient characteristics of EV charging stations. Due to limited battery capacity, increasing utilization of EVs requires widely installed charging stations. The electric vehicle (EV) is an effective way to tackle environmental challenges such as carbon emission.
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It is tested under different scenarios, and the real-time simulation results are validated using PSCAD/EMTDC. In the case studies, the EV station consists of a two-level rectifier and five dual-active bridge (DAB) EV chargers. The control strategy is simulated in a CPU with 100 μs time-step, while the EV station circuit topology is simulated in a single FPGA with a 250 ns time-step. A CPU-FPGA-based real-time simulation platform is developed and the proposed simulation of the EV station is implemented. The EV chargers can be decoupled with each other and simulated in parallel. The simulation time step can be greatly reduced compared with that of the traditional EMTP algorithm, and so the simulation accuracy for high-frequency power electronics is improved. The C-EMTP algorithm transforms the traditional EMTP algorithm into two parallel sub-tasks only consisting of simple matrix operations, to fully utilize the high parallelism of FPGA. This paper proposes a compact electromagnetic transient program (C-EMTP) algorithm for FPGA-based real-time simulation of an EV station with multiple high-frequency chargers. However, the large numbers of high-frequency power electronic switches contained in EV chargers pose great challenges for real-time simulation. Real-time simulation of an EV station plays an essential role in testing its operation under different operating modes. The electric vehicle (EV) charging station is a critical part of the infrastructure for the wide adoption of EVs.