Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTs
The increasing penetration of renewable generation and large implementation of the DC loads are challenges that stress the current distribution systems by causing uncertain voltage variations. The AC−DC hybrid distribution network is seen as an innovative solution to address the problem of accommoda...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-04-01
|
| Series: | The Journal of Engineering |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8537 |
| _version_ | 1818418368121667584 |
|---|---|
| author | Xianglong Liu Youbo Liu Junyong Liu Xi Zhang |
| author_facet | Xianglong Liu Youbo Liu Junyong Liu Xi Zhang |
| author_sort | Xianglong Liu |
| collection | DOAJ |
| description | The increasing penetration of renewable generation and large implementation of the DC loads are challenges that stress the current distribution systems by causing uncertain voltage variations. The AC−DC hybrid distribution network is seen as an innovative solution to address the problem of accommodating highly dispersed sustainable energy. Specifically, the solid-state transformer (SST), which is capable of enhancing power-quality performance and controllability of the power distribution, has attracted increasing focus in this decade as a promising advanced converter. It is of great interest to investigate how to operate the multiple SSTs with different modes in a coordinated manner to optimise the distribution network performance. This paper formulates the coordinated operation model for multiple SSTs to enable fast voltage regulation for the hybrid active distribution network equipped with large-scale penetration of invertor-based solar power and DC load. A hybrid optimal power flow describing the controlling modes of SSTs and operating interaction between AC−DC subsystems is proposed in this paper. The case studies on a modified IEEE 33-AC−DC hybrid power distribution system show that the voltage profile can be optimised by using the flexible controlling resource of SSTs, facilitating the timely performance adjustment in the presence of fast fluctuating distributed generator's output. |
| first_indexed | 2024-12-14T12:21:34Z |
| format | Article |
| id | doaj.art-12542239ca314720879d4af14f56b88a |
| institution | Directory Open Access Journal |
| issn | 2051-3305 |
| language | English |
| last_indexed | 2024-12-14T12:21:34Z |
| publishDate | 2019-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Journal of Engineering |
| spelling | doaj.art-12542239ca314720879d4af14f56b88a2022-12-21T23:01:28ZengWileyThe Journal of Engineering2051-33052019-04-0110.1049/joe.2018.8537JOE.2018.8537Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTsXianglong Liu0Youbo Liu1Junyong Liu2Xi Zhang3Collage of Electrical Engineering and Information Technology, Sichuan University, Chengdu 610065Collage of Electrical Engineering and Information Technology, Sichuan University, Chengdu 610065Collage of Electrical Engineering and Information Technology, Sichuan University, Chengdu 610065Collage of Electrical Engineering and Information Technology, Sichuan University, Chengdu 610065The increasing penetration of renewable generation and large implementation of the DC loads are challenges that stress the current distribution systems by causing uncertain voltage variations. The AC−DC hybrid distribution network is seen as an innovative solution to address the problem of accommodating highly dispersed sustainable energy. Specifically, the solid-state transformer (SST), which is capable of enhancing power-quality performance and controllability of the power distribution, has attracted increasing focus in this decade as a promising advanced converter. It is of great interest to investigate how to operate the multiple SSTs with different modes in a coordinated manner to optimise the distribution network performance. This paper formulates the coordinated operation model for multiple SSTs to enable fast voltage regulation for the hybrid active distribution network equipped with large-scale penetration of invertor-based solar power and DC load. A hybrid optimal power flow describing the controlling modes of SSTs and operating interaction between AC−DC subsystems is proposed in this paper. The case studies on a modified IEEE 33-AC−DC hybrid power distribution system show that the voltage profile can be optimised by using the flexible controlling resource of SSTs, facilitating the timely performance adjustment in the presence of fast fluctuating distributed generator's output.https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8537invertorspower distribution controlpower supply qualityload flowvoltage controlpower transformerscontrollabilitymultiple SSTsdistribution network performancecoordinated operation modelfast voltage regulationhybrid active distribution networkDC loadhybrid optimal power flowAC−DC subsystemscurrent distribution systemsuncertain voltage variationsAC−DC hybrid distribution networkcontrollabilitymodified IEEE 33-AC−DC hybrid power distribution systemrenewable generation penetrationsolid-state transformerdispersed sustainable energyvoltage profilefast fluctuating distributed generator outputinvertor-based solar power penetrationpower-quality performance enhancement |
| spellingShingle | Xianglong Liu Youbo Liu Junyong Liu Xi Zhang Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTs The Journal of Engineering invertors power distribution control power supply quality load flow voltage control power transformers controllability multiple SSTs distribution network performance coordinated operation model fast voltage regulation hybrid active distribution network DC load hybrid optimal power flow AC−DC subsystems current distribution systems uncertain voltage variations AC−DC hybrid distribution network controllability modified IEEE 33-AC−DC hybrid power distribution system renewable generation penetration solid-state transformer dispersed sustainable energy voltage profile fast fluctuating distributed generator output invertor-based solar power penetration power-quality performance enhancement |
| title | Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTs |
| title_full | Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTs |
| title_fullStr | Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTs |
| title_full_unstemmed | Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTs |
| title_short | Coordinating voltage regulation for an AC–DC hybrid distribution network with multiple SSTs |
| title_sort | coordinating voltage regulation for an ac dc hybrid distribution network with multiple ssts |
| topic | invertors power distribution control power supply quality load flow voltage control power transformers controllability multiple SSTs distribution network performance coordinated operation model fast voltage regulation hybrid active distribution network DC load hybrid optimal power flow AC−DC subsystems current distribution systems uncertain voltage variations AC−DC hybrid distribution network controllability modified IEEE 33-AC−DC hybrid power distribution system renewable generation penetration solid-state transformer dispersed sustainable energy voltage profile fast fluctuating distributed generator output invertor-based solar power penetration power-quality performance enhancement |
| url | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8537 |
| work_keys_str_mv | AT xianglongliu coordinatingvoltageregulationforanacdchybriddistributionnetworkwithmultiplessts AT youboliu coordinatingvoltageregulationforanacdchybriddistributionnetworkwithmultiplessts AT junyongliu coordinatingvoltageregulationforanacdchybriddistributionnetworkwithmultiplessts AT xizhang coordinatingvoltageregulationforanacdchybriddistributionnetworkwithmultiplessts |