FPGA-Based Real-Time EMTP

Real-time transient simulation of large transmission networks requires significant computational power. This paper proposes a field-programmable gate array (FPGA)-based real-time electromagnetic transient simulator. Taking advantage of the inherent parallel architecture, high density, and high clock speed, the real-time Electromagnetic Transients Program (EMTP) is implemented on a single FPGA chip. It is based on a paralleled algorithm that is deeply pipelined, and uses a floating-point arithmetic calculation to achieve high accuracy for simulating fast electromagnetic transients. To validate the new simulator, a sample system with 15 transmission lines using full frequency-dependent modeling is simulated in real time. A timestep of 12 mus has been achieved based on a 12.5-ns clock period with high data throughput. The captured real-time oscilloscope results demonstrate excellent accuracy of the simulator in comparison to the offline simulation of the original system in the Alternative Transients Program version of EMTP.

[1]  Margaret Martonosi,et al.  Accelerating Pipelined Integer and Floating-Point Accumulations in Configurable Hardware with Delayed Addition Techniques , 2000, IEEE Trans. Computers.

[2]  Jose R. Marti,et al.  Real-time EMTP-based transients simulation , 1994 .

[3]  V. Dinavahi,et al.  A versatile cluster-based real-time digital simulator for power engineering research , 2006, IEEE Transactions on Power Systems.

[4]  R. M. Mathur,et al.  Real-Time Digital Simulator of the Electromagnetic Transients of Transmission Lines with Frequency Dependence , 1989, IEEE Power Engineering Review.

[5]  R. Kuffel,et al.  A real-time transmission line model for a digital TNA , 1996 .

[6]  Xin Nie,et al.  Real-Time Transient Simulation Based on a Robust Two-Layer Network Equivalent , 2007, IEEE Transactions on Power Systems.

[7]  Mahmoud Matar,et al.  FPGA-Based Real-Time Digital Simulation , 2005 .

[8]  J. Giesbrecht,et al.  A real time digital simulator for testing relays , 1992 .

[9]  A. El Gamal,et al.  Architecture of field-programmable gate arrays , 1993, Proc. IEEE.

[10]  Hoang Le-Huy,et al.  Real-time simulation of power transmission lines using Marti model with optimal fitting on dual-DSP card , 1996 .

[11]  J. A. Hollman,et al.  Real-Time Network Simulation with PC-Cluster , 2002, IEEE Power Engineering Review.

[12]  O. Devaux,et al.  An advanced and powerful real-time digital transient network analyser , 1998 .

[13]  J. Martí,et al.  Accuarte Modelling of Frequency-Dependent Transmission Lines in Electromagnetic Transient Simulations , 1982, IEEE Transactions on Power Apparatus and Systems.

[14]  Hermann W. Dommel,et al.  Digital Computer Solution of Electromagnetic Transients in Single-and Multiphase Networks , 1969 .