Results 181 to 190 of about 7,169 (203)
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2006 IEEE International Symposium on Industrial Electronics, 2006
This paper presents the model of a Static Synchronous Series Compensator with the simulation package EMTP RV. The model uses a neutral point clamped (NPC) voltage source converter (VSC) to generate a high quality waveform. The model operation is verified with two types of controllers: Direct and Indirect to validate their mode of operation.
Sasan Salem, V.K. Sood
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This paper presents the model of a Static Synchronous Series Compensator with the simulation package EMTP RV. The model uses a neutral point clamped (NPC) voltage source converter (VSC) to generate a high quality waveform. The model operation is verified with two types of controllers: Direct and Indirect to validate their mode of operation.
Sasan Salem, V.K. Sood
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Multirate EMTP-Type Induction Machine Models
IEEE Transactions on Energy Conversion, 2016Recent focus on component-network interfacing has greatly increased the maximum step size at which machine models can be simulated accurately and stably in nodal-analysis-based electromagnetic transients programs (EMTP-type). However, considerably smaller step sizes are often used in practice due to the presence of fast modes in external power networks.
Francis Therrien, Juri Jatskevich
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A generalized harmonic balance method for EMTP initialization
IEEE Transactions on Power Delivery, 1995The harmonic balance method is extended to the steady-state analysis of power system models that include complex nonlinearities and variable topology power electronics equipment as may be user-assembled from basic EMTP-TACS components. In applying the harmonic balance method, these devices are considered as black boxes and isolated from the linear part
G. Murere, S. Lefebvre, X.D. Do
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EMTP Simulation of a Chain-Link STATCOM
IEEE Transactions on Power Delivery, 2008A recent addition to the STATCOM family has been obtained by connecting a number of gate turn off (GTO) thyristor converters in series on the ac side of the system. Each GTO converter forms one ldquolinkrdquo of a one-phase, full-bridge voltage-source converter (VSC) and is referred to as a ldquochain link converterrdquo (CLC).
N.M. Shah, V.K. Sood, V. Ramachandran
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Emtp simulation of synchronous machine from standstill to synchronization
2009 IEEE Power & Energy Society General Meeting, 2009This paper presents the modeling and simulation studies for the startup of a 250 MVA pumped storage unit in pumping mode and the startup of a 65 MVA hydraulic unit as a corrective action following an uncontrolled islanding of an area due to an extreme contingency.
Karaağaç, Ulaş +2 more
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การศึกษาเปรียบเทียบแบบจำลองการเกิดวาบไฟและการใช้งานในโปรแกรม EMTP
วิทยานิพนธ์ฉบับนี้นำเสนอผลการศึกษาการใช้อินทิเกรชันโมเดลและลีดเดอร์โมเดลในโปรแกรม EMTP เพื่อจำลองการเกิดเบรกดาวน์ของแกปอากาศเนื่องจากแรงดันอิมพัลส์ฟ้าผ่าระหว่างอิเล็กโตรดทั้งแบบ rod-rod และ rod-plane ที่มีระยะแกปในช่วง 10-28.5 ซม. และนำไปประยุกต์ใช้สำหรับจำลองการเกิดวาบไฟตามผิวของลูกถ้วยแท่งก้านตรงชนิด 56/57-2 และ 56/57-3 โดยเปรียบเทียบเส้นโค้งแรงด ...openaire +1 more source
Suppression of Numerical Oscillations in the EMTP
IEEE Power Engineering Review, 1989When compared to other possible integration schemes for the EMTP, the trapezoidal rule of integration presents very good overall characteristics in terms of accuracy, efficiency, and run-off stability. During certain system conditions, however, the solution with trapezoidal may present sustained numerical oscillations (Fig. 1(a)).
Jose R. Marti, Jiming Lin
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Microturbine harmonic impact study using ATP-EMTP
2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951), 2005ATP-EMTP simulations of a 3-phase commercial power distribution system containing 250 kW, 480 V microturbines running at less than full load and producing harmonic currents that violate recommended current distortion limits are described. The purpose of the simulations was to investigate the extent to which the nonlinear currents generated by the ...
P. Kirawanich +2 more
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EMTP simulation ofa STATCOM using hysteresis control
APSCOM 2000 - 5th International Conference on Advances in Power System Control, Operation and Management, 2000One of the main disadvantages of the traditional STATCOM is that it generates a considerable amount of harmonics. This paper presents an alternative control strategy of a STATCOM based on hysteresis current control. Simulation results show that the supply current waveform can be controlled to be nearly sinusoidal in form regardless of whether the ...
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Simulation of electromagnetic transients with EMTP-RV
2015This chapter presented a summary on numerical methods used in EMTP (EMTPRV version) for the computation of electromagnetic transients. EMTP offers several options and modules for the simulation and analysis of complex power systems. EMTP offers a unified environment that can be applied to study power systems from steady-state conditions, to ...
J. Mahseredjian +3 more
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