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Improved electromagnetic transient simulation method suitable for field programmable logic array

An electromagnetic transient simulation and programming logic technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of reducing the efficiency and real-time performance of real-time simulation, consuming FPGA hardware resources, etc., and achieve saving FPGA hardware resources , high resource utilization, and the effect of improving simulation efficiency

Active Publication Date: 2019-11-19
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

[0005] The traditional EMTP algorithm is designed based on the CPU architecture. There are a large number of serial structures in the algorithm flow. Directly compiling and running on the FPGA will consume a lot of FPGA hardware resources and reduce the efficiency and real-time performance of real-time simulation.

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  • Improved electromagnetic transient simulation method suitable for field programmable logic array
  • Improved electromagnetic transient simulation method suitable for field programmable logic array
  • Improved electromagnetic transient simulation method suitable for field programmable logic array

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Embodiment Construction

[0039] For ease of understanding, the following will use a figure 2 The shown dual active bridge (Dual Active Bridge, DAB) circuit is taken as an example to illustrate the present invention, but this should not limit the protection scope of the present invention.

[0040] When using the method of the present invention to specifically realize the real-time emulation of DAB, the hardware is mainly the PXIe chassis of National Instruments (NI) company, wherein PXIe-8135 is a PXIe controller, which is mainly responsible for the emulation of the DAB control system, and carries out with the host computer through Ethernet Communication, displaying real-time simulation waveforms on the host computer; PXIe-7975R is an FPGA module, which is mainly responsible for the simulation of the DAB circuit part, and is connected to an external controller and oscilloscope through the I / O port to perform hardware-in-the-loop simulation. Real-time communication between the two through the PXIe bus ...

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Abstract

The invention relates to an improved electromagnetic transient simulation method suitable for a field programmable gate array (FPGA). In the initialization stage, topological parameters of a to-be-simulated circuit are integrated into two matrix parameters, and in the simulation cycle main body part, voltage and current information at each simulation moment can be obtained only by performing simple matrix multiplication operation. According to the FPGA-based electromagnetic transient simulation method, complex initialization operation in the field programmable logic array is avoided, meanwhile, the flow of a simulation cycle main body part in the FPGA is compressed to the maximum extent, and the electromagnetic transient simulation efficiency based on the FPGA is greatly improved.

Description

technical field [0001] The invention relates to a power system, in particular to an improved electromagnetic transient simulation method suitable for field programmable logic arrays. Background technique [0002] Electromagnetic transient simulation is an important tool for power system safety analysis and control research. Electromagnetic transient simulation is divided into offline simulation and real-time simulation. At present, electromagnetic transient offline simulation software such as Matlab / Simulink, PSCAD / EMTDC, etc. generally have problems such as slow simulation speed, time-consuming and do not support real-time interaction with external hardware. Meet higher experimental requirements such as hardware-in-loop (Hardware-in-Loop, HiL). At this time, electromagnetic transient real-time simulation stands out due to its high computational efficiency, good accuracy, and strong interactivity, and has gradually attracted widespread attention. [0003] Professor H.W. Do...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F17/00
Inventor 徐晋汪可友吴盼李子润李国杰
Owner SHANGHAI JIAO TONG UNIV
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