ANALYSIS OF GROUND FAULT CURRENT DISTRIBUTION ALONG UNDERGROUND CABLES

1986-10-01
It is important to determine the segment-by-segment distribution of the fault current in a multigrounded power network for better power system operation and grounding structure design. In this paper, a new method for the analysis of ground fault current distribution along underground cables (and/or overhead lines) is presented. The method is sufficiently accurate and comprehensive to simultaneously consider all the significant variables. The equivalent circuit developed utilizes both lumped and distributed parameters. The method is based on the successive computation of driving point impedance matrices at each grounding structure location. Simulations have been done on a computer. Verification studies and various parametric studies have been performed.
IEEE TRANSACTIONS ON POWER DELIVERY

Suggestions

Design and implementation of coupled inductor Cuk converter operating in continuous conduction mode
Ayhan, Mustafa Tufan; Ersak, Aydın; Department of Electrical and Electronics Engineering (2011)
The study involves the following stages: First, coupled-inductor and integrated magnetic structure used in Cuk converter circuit topologies are analyzed and the necessary information about these elements in circuit design is gathered. Also, benefits of using these magnetic elements are presented. Secondly; steady-state model, dynamic model and transfer functions of coupled-inductor Cuk converter topology are obtained via state-space averaging method. Third stage deals with determining the design criteria to...
Analysis and Characterization of DC Bus Ripple Current of Two-Level Inverters Using The Equivalent Centered Harmonic Approach
Ayhan, Ufuk; Hava, Ahmet Masum (2011-09-22)
The dc bus PWM ripple current of three-phase two-level voltage source inverters is a function of the PWM method, the load current magnitude, power factor angle, and the modulation index. Thus, the ripple current characteristics are highly involved and difficult to understand. Using the double Fourier integral approach, this paper investigates the ripple current characteristics thoroughly for a wide range of operating conditions and PWM methods. Then, the equivalent harmonic approach is used to lump the ripp...
Analysis of Feedback in Converter using Coreless Printed Circuit Board Transformer
Majid, A.; Saleem, J.; Kotte, H. B.; Ambatipudi, R.; Haller, S.; Bertilsson, K. (2011-09-10)
Power supply is an inevitable component for all electronic instruments as a constant DC source. Almost all power supplies use feedback loop to achieve constant DC output voltage. In a feedback loop, the galvanic isolation is required between input and output. It can be achieved either by implementation of opto-coupler feedback on the secondary side or magnetic feedback. In this paper both opto-coupler and auxiliary feed-back techniques are implemented and analyzed in a high frequency half bridge converter u...
Design of a radiation hardened PWM controller built on SOI
Kılıç, Emrecan; Külah, Haluk; Department of Electrical and Electronics Engineering (2018)
Design of efficient and compact switch-mode power supplies (SMPS) is a popular topic in power electronics. Silicon has been used as semiconductor material of switches in DCDC converters for decades. However, preference of using GaN as semiconductor material of switches in these topologies has recently increased due to their superior properties. GaN FETs have lower gate capacitance, lower channel resistance, higher frequency operation, higher breakdown voltage and higher temperature operation than silicon MO...
Investigation of multilevel inverters for d-statcom applications
Deniz, Mustafa; Ermiş, Muammer; Department of Electrical and Electronics Engineering (2009)
The most important advantages of Multilevel Inverters are the absence of a coupling transformer for medium voltage applications and low harmonic current content. In this way, relocatable and economical STATCOM systems can be realized. Complex control algorithms and the isolation problems of measurement devices and power supplies are the main challenging parts of this type of application. In this study, the design, realization, and the performance of a Voltage Source Type Cascaded Multilevel Converter Based ...
Citation Formats
A. N. Güven, “ANALYSIS OF GROUND FAULT CURRENT DISTRIBUTION ALONG UNDERGROUND CABLES,” IEEE TRANSACTIONS ON POWER DELIVERY, pp. 9–18, 1986, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33000.