Academic Journal

Additional reactive power control and emergency control of the ±1100 kV UHVDC system with a hierarchical connection mode

التفاصيل البيبلوغرافية
العنوان: Additional reactive power control and emergency control of the ±1100 kV UHVDC system with a hierarchical connection mode
المؤلفون: Yongxin Xiong, Wei Yao, Jinyu Wen
المصدر: The Journal of Engineering (2019)
بيانات النشر: Wiley, 2019.
سنة النشر: 2019
المجموعة: LCC:Engineering (General). Civil engineering (General)
مصطلحات موضوعية: invertors, power transmission faults, reactive power control, HVDC power transmission, HVDC power convertors, power transmission control, commutation, probability, commutation failure probability, reactive power disturbance suppression, fault-free AC system, short-circuit fault, DC voltage analysis, inverter station, ultrahigh voltage direct current system, UHVDC system, emergency control strategy, reactive power control strategy, reactive power support, reactive power compensation devices, hierarchical connection mode, Engineering (General). Civil engineering (General), TA1-2040
الوصف: This paper proposes an additional reactive power control strategy and an emergency control strategy for ±1100 kV ultra-high voltage direct current (UHVDC) system with a hierarchical connection mode, in which the inverter station connect to two AC systems with different voltage levels. Firstly, the relationship between reactive power and DC voltage is analysed. Then, an additional reactive power control strategy is proposed to solve the voltage fluctuation caused by reactive power disturbance. Next, the reactive power emergency control strategy is proposed when a short-circuit fault occurs. Reactive power compensation devices will be inputted into the fault-free AC system to provide reactive power support through coupling relationship between two AC systems in the inverter side. Simulation results show that the additional reactive power control strategy can suppress reactive power disturbances without affecting the active power. Moreover, the reactive power emergency control strategy can reduce the probability of commutation failure in converters connected to the fault AC system while a short-circuit fault occurs.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2051-3305
Relation: https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8437; https://doaj.org/toc/2051-3305
DOI: 10.1049/joe.2018.8437
URL الوصول: https://doaj.org/article/2a4589561bc5434b9e7a44e7e72ac617
رقم الانضمام: edsdoj.2a4589561bc5434b9e7a44e7e72ac617
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20513305
DOI:10.1049/joe.2018.8437