Real time digital power system simulator design considerations and relay performance evaluation

Jakominich, D.; Krebs, R.; Retzmann, D.; Kumar, A. Naresh

doi:10.1109/icds.1995.492372

Cited by 10 publications

(9 citation statements)

References 10 publications

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“…The state equations for a linear time-invariant network can be written in general as (2) subject to the initial conditions and , where is the network state vector and is the input vector. and are constant matrices dependent on the network constants such as R, L, and C. With a time-step of integration , the solution at time can be expressed in terms of the solution at time (3) where is a variable of integration. Numerical solution of (3) can be obtained by approximating the integral in (3) using a numerical integration algorithm.…”

Section: Multiple Switching Events In Fixed Time-step Digital Simmentioning

confidence: 99%

“…R EAL-TIME digital simulation of power systems is becoming increasingly commonplace for testing of new FACTS and HVDC controllers and protection systems [1]- [3] before they are commissioned. When a digital controller for a power-electronic apparatus such as a unified power-flow controller (UPFC) needs to be tested, it is interfaced with a real-time simulator modeling the UPFC and the surrounding power system into which the UPFC is embedded.…”

Section: Introductionmentioning

confidence: 99%

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Algorithms for the Accounting of Multiple Switching Events in Digital Simulation of Power-Electronic Systems

Faruque

Dinavahi

2005

IEEE Trans. Power Delivery

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Digital simulation of power systems containing power electronics apparatus is challenging due to the need to account multiple switching events within one simulation time-step. This paper describes a family of algorithms, with varying levels of computational complexity, for accounting such switching events in digital simulations. The proposed algorithms are applicable for both off-line and real-time simulations. A comparative study on their performance such as harmonic content, errors in fundamental component and simulation time requirement is presented. A Pulse Width Modulated (PWM) Voltage Source Converter (VSC) based D-STATCOM system is used as a case study for simulations. Simulation results indicate excellent performance (accuracy and efficiency) in comparison with a fixed time-step algorithm using a small step-size.

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Section: Multiple Switching Events In Fixed Time-step Digital Simmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Algorithms for the Accounting of Multiple Switching Events in Digital Simulation of Power-Electronic Systems

Faruque

Dinavahi

2005

IEEE Trans. Power Delivery

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“…By using the full-digital simulator, the engineers can achieve a small size and flexible tuning simulation environment. Thus, the real-time simulation has become a famous technique [1][2][3][4] in designing a power electronics circuit. The merits and the drawbacks of a digital real-time simulator are summarized in Table 1.…”

Section: Introductionmentioning

confidence: 99%

The design and realization of a DSP-based power electronic circuit real-time simulator

You

Smith

2009

2009 International Conference on Power Electronics and Drive Systems (PEDS)

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In order to design a high performance power electronics circuit, a precise simulation environment is essential for the controller design. In this paper, a power electronic circuit real-time simulator was designed and realized on a DSP chip. The dynamic equations of a power electronics circuit were coded on a Texas Instruments (TI) made C6416 fixed point DSP. Meanwhile, the interrupt interface of the DSP was used to capture the pulse-width modulation (PWM) signal. Thus, the switching waveforms can be computed by a single DSP chip. To output the obtained waveforms in real-time, the SIGNALWARE ORS-114 AD/DA card was interfaced with the DSP chip by the direct memory access (DMA) channel. Thus, the circuit equation computations and the DAC output operations can be achieved in parallel.Finally, the designed simulator is used to simulate a 50kHz switching power supply and controlled by a TI C2808 DSP controller. The results show that the proposed hardware simulator can achieve better responses than the conventional software simulators..

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“…E MULATING conditions existing on a real power system has always been a critical requirement for myriad applications [1]- [3] including testing new control and protection equipment. Historically, this requirement has been met by transient network analyzers (TNAs) which were built using scaled-down analog models of power system equipment interconnected in their original configuration.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Digital Time-Varying Harmonic Modeling and Simulation Techniques IEEE Task Force on Harmonics Modeling and Simulation

Pak

Dinavahi

Chang

et al. 2007

IEEE Trans. Power Delivery

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With the growing importance of power quality problems to electric utilities and customers, there is an increased focus on the search for new tools and techniques for accurate analysis and resolution of such problems. This paper reviews currently available techniques for the modeling and simulation of time-varying harmonics in real-time. Following a brief summary of the currently used off-line harmonics modeling and simulation methods, the principles and system element representations using wave digital filter (WDF) and discrete wavelet transform (DWT) methods are discussed. Hardware and software architectures of real-time network simulator (RTNS), HYPERSIM, and PC-cluster based real-time simulator are presented. Towards the end, two case studies are given to demonstrate the real-time analysis of time-varying harmonics generated by a three-phase arc furnace using the PC-cluster based real-time simulator, and a real-time hardware-in-the-loop (HIL) equipment testing using the real-time digital simulator (RTDS).

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Real time digital power system simulator design considerations and relay performance evaluation

Cited by 10 publications

References 10 publications

Algorithms for the Accounting of Multiple Switching Events in Digital Simulation of Power-Electronic Systems

Algorithms for the Accounting of Multiple Switching Events in Digital Simulation of Power-Electronic Systems

The design and realization of a DSP-based power electronic circuit real-time simulator

Real-Time Digital Time-Varying Harmonic Modeling and Simulation Techniques IEEE Task Force on Harmonics Modeling and Simulation

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