New Breed of Network Fault-Tolerant Voltage-Source-Converter HVDC Transmission System
New Breed of Network Fault-Tolerant Voltage-Source-Converter HVDC Transmission System
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DOI：
10.1109/tpwrs.2012.2199337
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发表时间：
2013-02
影响因子：
6.6
通讯作者：
G. Adam;K. Ahmed;S. Finney;K. Bell;B. Williams
中科院分区：
文献类型：
--
作者：
G. Adam;K. Ahmed;S. Finney;K. Bell;B. Williams
本文提出了一种新的高压直流输电系统的基础上的混合多电平电压源换流器（VSC）与交流侧级联H桥单元。拟议的高压直流输电系统在有功和无功功率控制、黑启动能力方面提供了基于电压源控制的系统的操作灵活性，此外还提高了交流故障穿越能力和直流侧故障期间限流能力的独特功能。此外，它还具有比现有基于VSC的HVDC系统（包括使用模块化多电平换流器的系统）更小的占地面积和更大的有功和无功功率容量曲线等功能。为了说明所提出的HVDC系统的可行性，本文评估其动态性能在稳态和网络的变化，包括其对交流和直流侧故障的响应。
This paper proposes a new breed of high-voltage dc (HVDC) transmission systems based on a hybrid multilevel voltage source converter (VSC) with ac-side cascaded H-bridge cells. The proposed HVDC system offers the operational flexibility of VSC-based systems in terms of active and reactive power control, black-start capability, in addition to improved ac fault ride-through capability and the unique feature of current-limiting capability during dc side faults. Additionally, it offers features such as smaller footprint and a larger active and reactive power capability curve than existing VSC-based HVDC systems, including those using modular multilevel converters. To illustrate the feasibility of the proposed HVDC system, this paper assesses its dynamic performance during steady-state and network alterations, including its response to ac and dc side faults.