Simplified Analytic Approach of Pole-to-Pole Faults in MMC-HVDC for AC System Backup Protection Setting Calculation
| Autor: | Jia Zhu, Xianzhong Duan, Yinhong Li, Tongkun Lan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Control and Optimization
Computer science 020209 energy Energy Engineering and Power Technology 02 engineering and technology Hardware_PERFORMANCEANDRELIABILITY Fault (power engineering) lcsh:Technology pole-to-pole faults law.invention Electric power system law Control theory Backup AC (alternating current) system backup protection 0202 electrical engineering electronic engineering information engineering MMC-HVDC (multi-modular converter based high voltage direct current) setting calculation Electrical and Electronic Engineering Engineering (miscellaneous) fault analysis lcsh:T Renewable Energy Sustainability and the Environment business.industry Process (computing) Modular design Power (physics) High-voltage direct current business Alternating current Energy (miscellaneous) |
| Zdroj: | Energies; Volume 11; Issue 2; Pages: 264 Energies, Vol 11, Iss 2, p 264 (2018) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en11020264 |
| Popis: | AC (alternating current) system backup protection setting calculation is an important basis for ensuring the safe operation of power grids. With the increasing integration of modular multilevel converter based high voltage direct current (MMC-HVDC) into power grids, it has been a big challenge for the AC system backup protection setting calculation, as the MMC-HVDC lacks the fault self-clearance capability under pole-to-pole faults. This paper focused on the pole-to-pole faults analysis for the AC system backup protection setting calculation. The principles of pole-to-pole faults analysis were discussed first according to the standard of the AC system protection setting calculation. Then, the influence of fault resistance on the fault process was investigated. A simplified analytic approach of pole-to-pole faults in MMC-HVDC for the AC system backup protection setting calculation was proposed. In the proposed approach, the derived expressions of fundamental frequency current are applicable under arbitrary fault resistance. The accuracy of the proposed approach was demonstrated by PSCAD/EMTDC (Power Systems Computer-Aided Design/Electromagnetic Transients including DC) simulations. |
| Databáze: | OpenAIRE |
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