A transformless electric spring with decoupled real and reactive power control

The electric spring has emerged as a promising technique to stabilize electrical grids with high penetration of renewable energy sources. In response to the grid frequency deviation, electric springs can flexibly regulate the noncritical load power. However, the previous versions of electric spring...

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Main Authors: Qi, Yang, Yang, Tianbo, Tang, Yi, Potti, Krishna Raj Ramachandran, Rajashekara, Kaushik
Other Authors: School of Electrical and Electronic Engineering
Format: Conference or Workshop Item
Language:English
Published: 2019
Subjects:
Online Access:https://hdl.handle.net/10356/100063
http://hdl.handle.net/10220/49946
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1000632020-09-26T21:39:37Z A transformless electric spring with decoupled real and reactive power control Qi, Yang Yang, Tianbo Tang, Yi Potti, Krishna Raj Ramachandran Rajashekara, Kaushik School of Electrical and Electronic Engineering 2019 IEEE 4th International Future Energy Electronics Conference and ECCE Asia Energy Research Institute @NTU Microgrids Frequency Regulation Engineering::Electrical and electronic engineering The electric spring has emerged as a promising technique to stabilize electrical grids with high penetration of renewable energy sources. In response to the grid frequency deviation, electric springs can flexibly regulate the noncritical load power. However, the previous versions of electric springs either suffer from the coupling effect between real and reactive powers, or require associated energy storage systems, or need an extra low-frequency transformer for the isolation purpose. To overcome these shortcomings, a transformless electric spring and its associated control strategy are proposed in this paper. The proposed electric spring can independently regulate the real and reactive power without using batteries for maintaining the DC-link voltage or handling power flow. Finally, real time hardware-in-loop (HIL) simulation results are provided for verification. Accepted version 2019-09-17T04:46:29Z 2019-12-06T20:16:01Z 2019-09-17T04:46:29Z 2019-12-06T20:16:01Z 2019 Conference Paper Qi, Y., Yang, T., Tang, Y., Potti, K. R. R., & Rajashekara, K. (2019). A transformless electric spring with decoupled real and reactive power control. 2019 IEEE 4th International Future Energy Electronics Conference and ECCE Asia. https://hdl.handle.net/10356/100063 http://hdl.handle.net/10220/49946 en © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. 6 p. application/pdf
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Microgrids
Frequency Regulation
Engineering::Electrical and electronic engineering
spellingShingle Microgrids
Frequency Regulation
Engineering::Electrical and electronic engineering
Qi, Yang
Yang, Tianbo
Tang, Yi
Potti, Krishna Raj Ramachandran
Rajashekara, Kaushik
A transformless electric spring with decoupled real and reactive power control
description The electric spring has emerged as a promising technique to stabilize electrical grids with high penetration of renewable energy sources. In response to the grid frequency deviation, electric springs can flexibly regulate the noncritical load power. However, the previous versions of electric springs either suffer from the coupling effect between real and reactive powers, or require associated energy storage systems, or need an extra low-frequency transformer for the isolation purpose. To overcome these shortcomings, a transformless electric spring and its associated control strategy are proposed in this paper. The proposed electric spring can independently regulate the real and reactive power without using batteries for maintaining the DC-link voltage or handling power flow. Finally, real time hardware-in-loop (HIL) simulation results are provided for verification.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Qi, Yang
Yang, Tianbo
Tang, Yi
Potti, Krishna Raj Ramachandran
Rajashekara, Kaushik
format Conference or Workshop Item
author Qi, Yang
Yang, Tianbo
Tang, Yi
Potti, Krishna Raj Ramachandran
Rajashekara, Kaushik
author_sort Qi, Yang
title A transformless electric spring with decoupled real and reactive power control
title_short A transformless electric spring with decoupled real and reactive power control
title_full A transformless electric spring with decoupled real and reactive power control
title_fullStr A transformless electric spring with decoupled real and reactive power control
title_full_unstemmed A transformless electric spring with decoupled real and reactive power control
title_sort transformless electric spring with decoupled real and reactive power control
publishDate 2019
url https://hdl.handle.net/10356/100063
http://hdl.handle.net/10220/49946
_version_ 1681056341774303232