An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC system
When rectifier station of line-commutated converter based high-voltage direct transmission current has power fluctuations running at large load, reactive power compensator controlled in groups at rectifying station are switched frequently. That problem potentially has impact on service life of corre...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
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| Series: | The Journal of Engineering |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8701 |
| _version_ | 1818720973762854912 |
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| author | Zijia Hui Zhiguo Hao Ya Zhang Hongsen Zou Xiaojun Yu Zhiyuan Liu |
| author_facet | Zijia Hui Zhiguo Hao Ya Zhang Hongsen Zou Xiaojun Yu Zhiyuan Liu |
| author_sort | Zijia Hui |
| collection | DOAJ |
| description | When rectifier station of line-commutated converter based high-voltage direct transmission current has power fluctuations running at large load, reactive power compensator controlled in groups at rectifying station are switched frequently. That problem potentially has impact on service life of corresponding circuit breaker and threatens the safe operation of the DC system. In this study, in view of the characteristic of close connection between rectifier station and AC system, combined with the existing reactive power control scheme, in order to reduce the number of switching times of reactive power compensator, an optimal reactive power control scheme is proposed when rectifier station running at large load. When the converter station absorbs reactive power, the presented strategy takes converter bus voltage as the main control quantity with the starting point of taking full account of the reactive power support capacity of available generators near the station. When the converter station produces excess reactive power, the strategy takes the reactive power exchange of AC and DC system as the main control quantity, with the starting point of taking full account of reactive power absorption capacity of low-voltage reactor. The simulation results in power system analysis and synthesis program show the effectiveness of the proposed method. |
| first_indexed | 2024-12-17T20:31:21Z |
| format | Article |
| id | doaj.art-a6b9254c8f224bb5ae5316901258d7f2 |
| institution | Directory Open Access Journal |
| issn | 2051-3305 |
| language | English |
| last_indexed | 2024-12-17T20:31:21Z |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Journal of Engineering |
| spelling | doaj.art-a6b9254c8f224bb5ae5316901258d7f22022-12-21T21:33:35ZengWileyThe Journal of Engineering2051-33052019-01-0110.1049/joe.2018.8701JOE.2018.8701An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC systemZijia Hui0Zhiguo Hao1Ya Zhang2Hongsen Zou3Xiaojun Yu4Zhiyuan Liu5Department of Electrical Engineering, Xi'an Jiaotong UniversityDepartment of Electrical Engineering, Xi'an Jiaotong UniversityDepartment of Electrical Engineering, Xi'an Jiaotong UniversityOverhauling Company Branch of Ningxia Electric Power CompanyOverhauling Company Branch of Ningxia Electric Power CompanyOverhauling Company Branch of Ningxia Electric Power CompanyWhen rectifier station of line-commutated converter based high-voltage direct transmission current has power fluctuations running at large load, reactive power compensator controlled in groups at rectifying station are switched frequently. That problem potentially has impact on service life of corresponding circuit breaker and threatens the safe operation of the DC system. In this study, in view of the characteristic of close connection between rectifier station and AC system, combined with the existing reactive power control scheme, in order to reduce the number of switching times of reactive power compensator, an optimal reactive power control scheme is proposed when rectifier station running at large load. When the converter station absorbs reactive power, the presented strategy takes converter bus voltage as the main control quantity with the starting point of taking full account of the reactive power support capacity of available generators near the station. When the converter station produces excess reactive power, the strategy takes the reactive power exchange of AC and DC system as the main control quantity, with the starting point of taking full account of reactive power absorption capacity of low-voltage reactor. The simulation results in power system analysis and synthesis program show the effectiveness of the proposed method.https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8701HVDC power convertorscircuit breakersreactive power controlvoltage controlreactive powerHVDC power transmissionpower controloptimal reactive power control schemerectifier stationconverter station absorbsconverter bus voltagemain control quantityreactive power support capacityexcess reactive powerreactive power exchangeDC systemlow-voltage reactorpower system analysissynthesis programrectifying stationcoordination controlAC systemhigh-voltage direct transmissionpower fluctuationsreactive power compensatorexisting reactive power control scheme |
| spellingShingle | Zijia Hui Zhiguo Hao Ya Zhang Hongsen Zou Xiaojun Yu Zhiyuan Liu An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC system The Journal of Engineering HVDC power convertors circuit breakers reactive power control voltage control reactive power HVDC power transmission power control optimal reactive power control scheme rectifier station converter station absorbs converter bus voltage main control quantity reactive power support capacity excess reactive power reactive power exchange DC system low-voltage reactor power system analysis synthesis program rectifying station coordination control AC system high-voltage direct transmission power fluctuations reactive power compensator existing reactive power control scheme |
| title | An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC system |
| title_full | An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC system |
| title_fullStr | An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC system |
| title_full_unstemmed | An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC system |
| title_short | An optimal reactive power control scheme for rectifying station considering the coordination control of low-voltage reactor and AC system |
| title_sort | optimal reactive power control scheme for rectifying station considering the coordination control of low voltage reactor and ac system |
| topic | HVDC power convertors circuit breakers reactive power control voltage control reactive power HVDC power transmission power control optimal reactive power control scheme rectifier station converter station absorbs converter bus voltage main control quantity reactive power support capacity excess reactive power reactive power exchange DC system low-voltage reactor power system analysis synthesis program rectifying station coordination control AC system high-voltage direct transmission power fluctuations reactive power compensator existing reactive power control scheme |
| url | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8701 |
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