FPGA-Based Real-Time Digital Solver for Electro-Mechanical Transient Simulation

Bingda Zhang,Sijia Tu,Zhao Jin,Yang Wang

doi:10.3390/en11102650

Bingda Zhang, Sijia Tu + Show 2 more

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Journal: Energies	Publication Date: Oct 4, 2018
Citations: 7	License type: CC BY 4.0

Affiliation: Tianjin University

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A field-programmable gate array (FPGA)-based digital solver for real-time electromechanical transient simulation is designed in this paper. The solving process for a device or sub-network in an electromechanical transient simulation is packaged into the orders in soft function solvers. The orders are reused by soft function solvers that are invoked by microprocessor cores. The data exchange between the microprocessor cores and soft function solvers is enhanced through explicit and implicit channels. The orders of the microprocessor cores are stored in the synchronous dynamic random access memory on the FPGA board, which solves the problem of insufficient storage space for the orders in electromechanical transient simulation. A real-time digital solver for electromechanical transient simulation, whose feasibility is verified by a simulation of part of the power system in East China, is successfully constructed by applying a small number of microprocessor cores and multiple soft function solvers.

Highlights

Real-time simulation of power systems is a form of simulation where the simulation process is consistent in time with the actual power system
This indicated that the capability of is beyond that of the personal computer (PC), and the was not able to perform real-time simulation computation capability of FPGA-based real-time digital solver (FRTDS) is beyond that of the PC, and the PC was not able to perform realfor simulation the example reason for phenomenon is that the is calculations are performed time forsystem
Some new hardware designs applied in this paper are as follows: (1) synchronous dynamic random access memory (SDRAM) frequency multiplication was applied to ensure that the microprocessor cores can obtain 512-bit orders in the pipelining operation

Summary

Introduction

Real-time simulation of power systems is a form of simulation where the simulation process is consistent in time with the actual power system. These simulations can be used for hardware-in-the-loop tests, which play an important role in the design, testing, and detection of power system automation and protection systems, as well as in the teaching and training process of power systems [1,2,3]. Real-time electromagnetic transient simulation, the time step of which is in the microsecond range, is used to test equipment with high working frequency, or equipment that is designed based on instantaneous voltage and current value. It can be applied to dispatcher training systems (DTS)

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