• Title, Summary, Keyword: PSCAD

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PSCAD/EMTDC Model of PEMFC for Power System Analysis (전력계통 해석을 위한 PEMFC의 PSCAD/EMTDC 모델)

  • Lee, Jong-Su;Kim, Hak-Man;Lee, Byoung-Kuk;Shin, Myong-Chul
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.58 no.1
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    • pp.9-14
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    • 2009
  • The modelling of PEMFC(Proton Exchange Membrane Fuel Cell) has been studied in many kinds of methods. But there are some limitations in application of the developed models to analyze transient phenomena of power systems. The PSCAD/EMTDC is very popular simulation tool in power system areas. To analyze power systems interconnected to PEMFCs, the PSCAD/EMTDC model of the PEMFCs is needed. In this paper, we developed a PSCAD/EMTDC model of PEMFC based on electro-chemical characteristic equations of PEMFC. Also, we performed simulations using the developed model in the PSCAD/EMTDC program and tested appropriateness of the proposed models. The simulations showed good results.

APSCAD/Application:Single-phaseUtility-ConnectableInverterModelforPVorFCSystem (PSCAD응용:태양광및연료전지발전시스험의계통연재를 위한 단상인버터모델)

  • Campbell Ryan;Lee Jong Su;Shin Myong Chul;Kim Hak Man
    • Proceedings of the KIEE Conference
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    • pp.276-279
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    • 2004
  • The purpose of this paper is to describe and demonstrate how a utility-connectable inverter for photovoltaic or fuel-cell applications can be well modeled using PSCAD/EMTDC. In this paper, a single-phase IGBT inverter using SPWM is modeled. Simple voltage magnitude and phase controls are implemented using PSCAD's Pl controller, PLL, and a 'user defined' component called Modulo (found in their extensive collection of example circuits). The circuit model also takes advantage of PSCAD's interpolated firing pulse option, which provides improved simulation results by preventing errors from being introduced when switches fire between time simulation steps. Additionally, SCAD's Online Frequency Scanner for FFT is utilized for a demonstration of PSCAD's frequency-domain analysis capabilities.

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The PSCAD/EMTDC Modelling of JeJu AC Power System

  • Shuai, Zang;Choi, Joon-Ho
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • pp.252-254
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    • 2008
  • In this paper, the PSCAD/EMTDC modeling of JeJu AC power system with wind farms will be discussed. And the modelling of the synchronous generator, exciter, governor will also be defined in the JeJu power system by using the PSCAD/EMTDC. At the same time the fault analysis and the power flow analysis in JeJu AC power system are presented to demonstrate the JeJu AC power system can perfectly simulate the real JeJu power system function. Through the simulation using PSCAD/EMTDC we have gained the same results compared with the results accomplished by the PSS/E. so the validity of the modelling for the JeJu power system by using PSCAD/EMTDC is confirmed.

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Development of wind power generator system model using PSCAD/EMTDC (PSCAD/EMTDC를 이용한 풍력발전 시스템 모델 개발)

  • Kim, Young-Ju;Park, Dae-Jin;Ali, Mohd Hasan;Park, Min-Won;Yu, In-Keun
    • Proceedings of the KIEE Conference
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    • pp.2000-2001
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    • 2007
  • Wind power generation system based on the PSCAD/EMTD is proposed in this paper for the simulations under the real weather conditions. Real field data of weather condition is interfaced to PSCAD/EMTDC using Fortran program interfaced method. And a new turbine component is developed using characteristic equation of a wind turbine and pitch angle control algorism. The generator output and current supplied into utility can be obtained by the transient analysis using PSCAD/EMTDC.

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Modeling and Simulation of Superconducting Transformer using PSCAD/EMTDC (PSCAD/EMTDC를 이용한 초전도 변압기의 모델링과 시뮬레이션)

  • 임채형;박민원;유인근
    • Progress in Superconductivity and Cryogenics
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    • v.6 no.1
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    • pp.33-38
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    • 2004
  • This paper presents an effective simulation method for the high temperature superconducting (HTS) transformer using PSCAD/ EMTDC. Although researches and developments are performed for the HTS technologies, problems such as AC loss and quench phenomenon need to be solved for efficient design of HTS transformer. In addition, pre-study on the HTS transformer is a sort of time and cost consuming work, thus it is very worthy or being analyzing the characteristics of the HTS transformer in advance through a proper simulation method. It is very important to analyze the HTS devices by the simulation for seeking suitable and reasonable parameters for the practical application of those apparatuses in advance. A software- based component is suggested for- the simulation of the HTS transformer using PSCAD/ EMTDC and the numerical results are analyzed in detail in this paper.

Power Transformer Modeling and Transient Analysis using PSCAD (PSCAD를 이용한 전력용 변압기 모델링과 과도 해석)

  • Park, Chul-Won
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.65 no.2
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    • pp.122-129
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    • 2016
  • Current differential protection relaying with second harmonic restraint is the main protection for large capacity power transformer. PSCAD simulation program is widely used for modeling of dynamic varying transients phenomena. This paper deals with a power transformer model and transients analysis using PSCAD software to develop IED for power transformer. Simulation was carried out using a three phase 40MVA, 154/22.9kV, 60Hz, two-winding transformer with Y-Y connection used in actual fields. The paper analyzed transformer magnetizing inrush, external fault, and internal fault conditions with this model in the time domain. In addition, we performed an analysis in the frequency domain using FFT during several conditions.

The PV System Modeling Based on the PSCAD/EMTDC (PSCAD/EMTDC를 이용한 태양광발전(PV) 모델링에 관한 연구)

  • Jeon, Jintaek;Rho, Daeseok;Kim, Chanhyeok;Wang, Yongpeel
    • Journal of the Korea Convergence Society
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    • v.2 no.3
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    • pp.15-23
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    • 2011
  • This paper deals with the analysis for the operation characteristic of PV 3 phase inverter, considering the state equation through d-q coordinates transformation, and proposes an algorithm of controlling current using PI(Proportional Integral) controller to control the output and the theory algorithm of sinusoidal PWM method to design inverter. And also this paper performs PV modelling using PSCAD/EMTDC S/W which is commonly used in analysis of distribution system and confirms effectiveness of the modelling proposed in this paper by analyzing and comparing the EMTDC/PSCAD simulation result with the theoretical method.

PSCAD/EMTDC Based Modeling and Simulation Analysis of a Grid-Connected Photovoltaic Generation System (PSCAD/EMTDC를 미용한 계통연계형 태양광발전시스템의 모델링 및 모의 해석)

  • Jeon Jin-Hong;Kim Eung-Sang;Kim Seul-Ki
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.54 no.3
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    • pp.107-116
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    • 2005
  • The paper addresses modeling and analysis of a grid-connected photovoltaic generation system (PV system). PSCAD/EMTDC, an industry standard simulation tool for studying the transient behavior of electric power system and apparatus, is used to conduct all aspects of model implementation and to carry out extensive simulation study. This paper is aimed at sharing with the PSCAD/EMTDC user community our user-defined model for PV system applications, which is not yet available as a standard model within PSCAD/EMTDC. An equivalent circuit model of a solar cell has been used for modeling solar array. A series of parameters required for array modeling have been estimated from general specification data of a solar module. A PWM voltage source inverter (VSI) and its current control scheme have been implemented. A maximum power point tracking (MPPT) technique is employed for drawing the maximum available energy from the PV array. Comprehensive simulation results are presented to examine PV array behaviors and PV system control performance in response to irradiation changes. In addition, dynamic responses of PV array and system to network fault conditions are simulated and analysed.

Development of PSCAD User-defined Model for the Simulation of a PV Array (PV 어레이의 계통연계 모의를 위한 PSCAD 사용자 정의 모델 개발)

  • Ahn, Seon-Ju;Choi, Joon-Ho
    • Journal of the Korean Solar Energy Society
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    • v.31 no.5
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    • pp.134-139
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    • 2011
  • Since large and small scale photovoltaic(PV) systems have been commercialized in many countries, it is necessary to assess the effects of PV systems on the electric power system. For this, the development of accurate simulation model of PV arrays is very important. PSCAD/EMTDC, a widely used simulation tool for analyzing the transient behavior of electrical apparatus and networks, does not have a standard model of a PV array. Therefore in order to simulate the PV array, users have to develop their own simulation model. However, the block-diagram-based model is very complicated, and it is hard to modify the model parameters. In this study, we develop the user-defined model of a PV array by using the Design Editor, which is provided by PSCAD program. The mathematical model of a PV array and the method to determine the parameters of nonlinear I-V equation are implemented in a Fortran code. The graphical user interface provides the users with easy and simple way to modify the PV array parameters and simulation conditions. In order to help the users, this model also provides the parameters of 10 commercial PV arrays.