Affiliation:
1. Faculty of Electrical Engineering, Bialystok University of Technology, 15-351 Bialystok, Poland
2. International University of Applied Sciences in Lomza, 18-402 Lomza, Poland
Abstract
The phenomenon of voltage asymmetry is common in electricity networks and is the cause of many unfavourable phenomena occurring, such as an increase in power and energy losses, as well as the abnormal operation of certain loads. Voltage asymmetry can be caused by several different factors, which include the design of the transmission line (e.g., routing of conductors in relation to each other and the earth), the parameters of consumer circuits (e.g., unequal loading of individual phases), or the design of network equipment (e.g., generators or transformers). An asymmetrical condition also occurs during system disturbances such as single-phase short circuits or lightning. One of the many factors impinging on voltage asymmetry in the electrical network is also the effect of load, but in the case of medium voltage power networks, this effect is neglected in the literature. This paper presents and evaluates the influence of the power consumed by consumers on the values of zero-voltage asymmetry factor indices in medium voltage compensated power networks with the neutral point earthed by an inductance (Petersen coil) operating with wind and photovoltaic power plants.
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference23 articles.
1. Kochura, D., Tsivilyov, I., and Sarin, L. (2014, January 11–13). Influence of neutral grounding method on voltage unbalance in 10 kV network with cable lines and overhead lines. Proceedings of the 2014 Electric Power Quality and Supply Reliability Conference (PQ), Rakvere, Estonia.
2. Mizia, W. (1996). Transformers, Wydawnictwo Politechniki Śląskiej. (In Polish).
3. The analysis of the voltage and current asymmetry in the power transmission lines;Robak;Electrotech. Rev.,2014
4. Lorenc, J. (2007). Admitant Earth Fault Protection, Wydawnictwo Politechniki Poznańskiej. (In Polish).
5. Winkler, W., and Wiszniewski, A. (2004). Protection Automation in Electric Power Systems, WNT. (In Polish).
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献