Voltage control of critical and non-critical loads in distribution networks with electric spring

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Mohammad Askarpour (Author) Other; Jamshid Aghaei (Author) Other; Mohammad Hassan Khooban (Author) Other; Miadreza Shafie-khah (Author) Other; João P. S. Catalão (Author) FEUP

Journal

Title: Electric Power Systems Research

Vol. 177

Pages: 1-11

ISSN: 0378-7796

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 14 Citations

Scopus - 17 Citations

Other information

Authenticus ID: P-00Q-YTX

DOI: 10.1016/j.epsr.2019.105988

Abstract (EN): The electric spring (ES) is a novel voltage compensator which is series with a non-critical load to regulate the critical load voltage. The voltage fluctuation is caused by wind speed fluctuation, load fluctuation, and generator tripping. In busbar voltage drop situation, the electric spring decreases the voltage of non-critical load in order to support the critical load (busbar) voltage. All the non-critical loads couldn't work under any voltage (for example 0.5 pu). In this paper, a control strategy founded on active and reactive power compensations has been proposed for voltage control of critical loads on a reference value while it controls the voltage of non-critical loads between an acceptable boundary. The proposed controller has two voltage control loops which adjusts active and reactive power of the electric spring. The experimental results from the case study show that the ES with the proposed control strategy can effectively mitigate double voltage control of both critical and non-critical loads while dynamically managing the demand response of the system at the same time.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11