| Autor: |
ZHONG Mingming, XIA Chengjun, LI Shoutao, HUANG Chuyin, LI Chengxiang |
| Jazyk: |
čínština |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
电力工程技术, Vol 41, Iss 2, Pp 20-28 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2096-3203 |
| DOI: |
10.12158/j.2096-3203.2022.02.003 |
| Popis: |
For the wide application of high voltage direct current (HVDC) transmission engineering,the continuous commutation failure of line commutated converter HVDC (LCC-HVDC) has a seriously negative impact on the stable operation of the power system. Therefore,in order to mitigate the continuous commutation failure of LCC-HVDC in hybrid multi-feed HVDC system,from the perspective of increasing the LCC-HVDC commutation voltage,a coordinated control strategy for hybrid multi-infeed HVDC systems is proposed in this paper. According to the real-time reactive power shortage of the conventional DC,the reactive power and active power of voltage source converter HVDC (VSC-HVDC) output are dynamically adjusted by this strategy,thereby changing the transient stable operating point of VSC-HVDC. Through the coordinated control of this strategy,the continuous commutation failure of LCC-HVDC is suppressed and the transmission capacity of the active power of the DC transmission system is greatly improved. Finally,a simulation model of the hybrid dual-infeed HVDC system is built in PSCAD/EMTDC,and the effectiveness of the coordinated control strategy is verified. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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