Application of Voltage-regulating and Phaseshifting Transformers to Control Power Flows in the Power System
Journal Title: Acta Energetica - Year 2015, Vol 25, Issue 4
Abstract
Transmission system performance results from, among other factors, the use of devices for electricity transmission and transformation. Proper operation and control of these devices allows maintaining proper electricity parameters and the continuous supply to end consumers. In the group of electricity transforming devices transformers can be distinguished by the ability to control both the magnitude and phase angle of voltage. In this way transmission system state parameters are adjusted, which enable selecting the reactive and active power. On the one hand, these are devices of a complex structure, resulting in difficult operating conditions, while on the other hand they provide a potential opportunity to influence the power flow (including active power) in power grids. This article presents the idea of voltage and phase regulation and a transformer regulating unit model. Using the transformer unit’s grid model power analyses were conducted with a focus on evaluating load flow control capabilities. The results of the calculations for the selected transformer unit are presented.active power) in power grids. This article presents the idea of voltage and phase regulation and a transformer regulating unit model. Using the transformer unit’s grid model power analyses were conducted with a focus on evaluating load flow control capabilities. The results of the calculations for the selected transformer unit are presented.
Authors and Affiliations
Maksymilian Przygrodzki, Piotr Rzepka, Mateusz Szablicki
Evaluation of Transmission Grid Voltage Impact on the Operation of Power Units’ Auxiliary Systems
This paper presents the low voltage impact on the operation of critical auxiliaries of selected generation units in the national power system. Time limits are determined for the operation of these auxiliaries at low volt...
Intelligent MV Switchgear as an Element of Smart Grid Network
In the paper the family of intelligent switchgears, developed by a consortium formed by Tele and Radio Research Institute, Transformex sp. o.o., Elektromontaż Lublin and Łódź University of Technology, has been presented...
Design of Transformers
In this paper the basic designing of high voltage power transformers has been described. The layout and construction of a high voltage and low voltage winding of transformers has been determined. The designing of a tank...
Efficiency of Supercritical Coal Power Stations with Integrated CO2 Capture and Compression Systems Based on Oxy-combustion Technology
This paper presents supercritical coal-fired power stations integrated with CO2 capture and compression systems based on oxy-combustion. The efficiency and key performance indicators of analysed units with different oxyg...
The use of Small Scale Inverters Working with Renewable Energy Sources in Order to Improve Voltage Quality in a Power Distribution Network
The paper presents the results of a research project aimed at the construction of a single-phase inverter designed to transfer power from renewable energy sources (RES) to an electric power system (EPS). The research con...