Simulation of resonance over-voltage during energization of high voltage power network

Cheng, Chun-An; Chen, Shihe

doi:10.1016/j.epsr.2005.12.010

Cited by 9 publications

(8 citation statements)

References 2 publications

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“…It is also not easy to recognize the situation tending to parallel resonance coupling between system components. The examples in the literature mostly have recognized the problem based on measurement and field test then investigate the possibility of the phenomena [1], [2] and [6].…”

Section: B Discussion On Near Resonance Problemmentioning

confidence: 99%

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Identification of problems when using long high voltage AC cable in transmission system II: Resonance & harmonic resonance

Rahimi

Wiechowski

Østergaard³

et al. 2008

2008 IEEE/PES Transmission and Distribution Conference and Exposition

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Within European countries, Denmark was been at the forefront of replacing the transmission lines with cables. The project was supplying the power to the greater Copenhagen area in early 1990s. Recently, the Danish TSO Energinet.dk has initiated a research project for analyzing the HV underground cable in transmission system. The objective of this paper and the companion paper is to address the most important problems expected in transmission system with relatively larger share of long HV underground cables. The end goal will be a guideline to special solutions and precautions to avoid dangerous over voltage problems and also resonance problems in a transmission network with future increased share of cables. Two major categories of problems are switching transient and resonance problems. In each category of the possible problems, first some theoretical background is provided and then the problem and countermeasures are discussed. In this paper most important resonance problems are addressed and discussed. Three main categories of resonance problems are:Near Resonance, Harmonic resonance and Ferroresonance.

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Section: B Discussion On Near Resonance Problemmentioning

confidence: 99%

“…It is necessary to set the protective devices in the system to be activated before the resonance over-voltage reaches the equipment's over-voltage withstand limits. Also over-voltage withstand capability of the each equipment may deteriorate due to aging or other internal defects [6].…”

Section: B Discussion On Near Resonance Problemmentioning

confidence: 99%

Identification of problems when using long high voltage AC cable in transmission system II: Resonance & harmonic resonance

Rahimi

Wiechowski

Østergaard³

et al. 2008

2008 IEEE/PES Transmission and Distribution Conference and Exposition

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“…Для налаштування індуктивності шунтуваль-них реакторів (ШР) з метою запобігання резо-нансних перенапруг (РП) в реальній електричній мережі з різними довжинами ліній електропере-дач надвисокої напруги (ЛЕП НВН) може бути рекомендоване застосування керованих шунту-вальних реакторів (КШР) [3,5]. Керований шун-тувальний реактор -це змінний індуктивний опір, значення якого плавно регулюється під-магнічуванням феромагнітних елементів маг-нітного кола.…”

Section: основна частинаunclassified

“…Для аналізу анормальних перенапруг автором була виведе-на формула визначення резонансної довжини лінії. Так, вираз для будь-якій кількості груп шун-тувальних реакторів (ШР) має вигляд: Керований КР може бути обладнано типо-вим пристроєм перемикань [4,5] без збудження, такої ж конструкції, як регулятор напруги у типо-вого трансформатора, а не обмотками підмаг-нічування спеціальної конструкції та засобами тиристорного керування, що використовують в КШР.…”

Section: основна частинаunclassified

The events for prevention of resonant overvoltages in main power electrical networks

Kuchanskyi¹

2016

Electronics and Communications

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“…There is a risk that protection devices respond to these currents, causing the generating unit to trip. In addition, resonance overvoltages can occur caused by the transformer non-linear impedance and the line or cable capacitance together with the weak damping of the system [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Calculation of transformer inrush currents occurring during the energizing of the Public Grid after a major black out

Jansen

Slootweg

Groot

2005

2005 IEEE Russia Power Tech

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Abstract-The paper describes simulations and a live test of the black-start procedure of an industrial power plant in the North of the Netherlands. After a total blackout of the Public Grid in the Netherlands, the restoration process shall start with so-called black-start units. To increase the probability that the re-energizing of the Public Grid indeed succeeds, the Dutch transmission system operator obliges units to prove their blackstart capability by performing a live test.A crucial step in the re-energizing of the Public Grid is the energizing of large transformers. Problems can be expected due to the inrush current of the transformers. For one such generating unit extended simulations of the inrush phenomena of the transformers and calculation of inrush currents and overvoltages were performed. Based on the simulation results well-founded decisions were made on the most suitable start-up procedure. The simulations were followed by live tests of the black-start procedure.

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Simulation of resonance over-voltage during energization of high voltage power network

Cited by 9 publications

References 2 publications

Identification of problems when using long high voltage AC cable in transmission system II: Resonance & harmonic resonance

Identification of problems when using long high voltage AC cable in transmission system II: Resonance & harmonic resonance

The events for prevention of resonant overvoltages in main power electrical networks

Calculation of transformer inrush currents occurring during the energizing of the Public Grid after a major black out

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Simulation of resonance over-voltage during energization of high voltage power network

Cited by 9 publications

References 2 publications

Identification of problems when using long high voltage AC cable in transmission system II: Resonance &#x00026; harmonic resonance

Identification of problems when using long high voltage AC cable in transmission system II: Resonance &#x00026; harmonic resonance

The events for prevention of resonant overvoltages in main power electrical networks

Calculation of transformer inrush currents occurring during the energizing of the Public Grid after a major black out

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Product

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Identification of problems when using long high voltage AC cable in transmission system II: Resonance & harmonic resonance

Identification of problems when using long high voltage AC cable in transmission system II: Resonance & harmonic resonance