IET Generation Transmission & Distribution
| Autor: | Yuchong Wu, Arun G. Phadke, Jing Ma |
|---|---|
| Přispěvatelé: | Electrical and Computer Engineering |
| Rok vydání: | 2020 |
| Předmět: |
Scheme (programming language)
TK1001-1841 Distribution or transmission of electric power Computer science business.industry 020209 energy 020208 electrical & electronic engineering Electrical engineering Foundation (engineering) Energy Engineering and Power Technology TK3001-3521 02 engineering and technology Fault (power engineering) Production of electric energy or power. Powerplants. Central stations Control and Systems Engineering Hybrid system Factor (programming language) 0202 electrical engineering electronic engineering information engineering Natural science Electrical and Electronic Engineering business computer computer.programming_language |
| Zdroj: | IET Generation, Transmission & Distribution, Vol 15, Iss 5, Pp 912-926 (2021) |
| ISSN: | 1751-8695 1751-8687 |
| DOI: | 10.1049/gtd2.12068 |
| Popis: | Concerning the mal-operation of distance protection in AC/DC hybrid system due to commutation failure in DC system caused by AC-side fault, a novel AC line distance protection scheme based on fault likeness factor is proposed. First, by analysing the conducting state of converter in different time intervals, the expression of feed-in current from DC system to AC system is derived. On this basis, combining AC-side fault component network, the fault location equation considering the impact of feed-in current from DC system is established. Thus, by solving the equation consisting of information at multiple time sections, the fault location is calculated. And then, according to the consistency between the calculated fault location and actual fault location, the fault likeness factor is constructed to distinguish between in-zone and out-of-zone faults. Finally, simulation tests in RT-LAB verify that, the proposed scheme can identify in-zone and out-of-zone faults fast and accurately in the case of commutation failure caused by different types of fault, strongly immune to fault resistance. National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51822703]; Chinese Universities Scientific Fund [2018JQ01, 2018ZD01] National Natural Science Foundation of China, Grant/Award Number: 51822703; Chinese Universities Scientific Fund, Grant/Award Numbers: 2018JQ01, 2018ZD01 |
| Databáze: | OpenAIRE |
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