摘要翻译:
在现代高压直流输电系统中,电压源变流器(VSC)越来越普遍。多端VSCHVDC的主要挑战之一是对直流侧故障的保护。对混合式直流断路器和装配式高压直流断路器的运行特性、运行速度和载流能力进行了比较。利用双模冗余(DMR)技术对故障场景进行决策。当一个结果与另一个结果相矛盾时,这使用了双重投票系统。这有助于为两种类型的断路器的操作设计故障安全机制。断路器动作时考虑了电流阈值和方向变化。在PSCAD/EMTDC中设计了一个三端双极VSC HVDC系统,并利用仿真结果对两种不同的直流断路器设计进行了比较。
---
英文标题:
《Comparative Analysis of Hybrid DC Breaker and Assembly HVDC Breaker》
---
作者:
Bhaskar Mitra, Badrul Chowdhury
---
最新提交年份:
2018
---
分类信息:
一级分类:Electrical Engineering and Systems Science 电气工程与系统科学
二级分类:Signal Processing 信号处理
分类描述:Theory, algorithms, performance analysis and applications of signal and data analysis, including physical modeling, processing, detection and parameter estimation, learning, mining, retrieval, and information extraction. The term "signal" includes speech, audio, sonar, radar, geophysical, physiological, (bio-) medical, image, video, and multimodal natural and man-made signals, including communication signals and data. Topics of interest include: statistical signal processing, spectral estimation and system identification; filter design, adaptive filtering / stochastic learning; (compressive) sampling, sensing, and transform-domain methods including fast algorithms; signal processing for machine learning and machine learning for signal processing applications; in-network and graph signal processing; convex and nonconvex optimization methods for signal processing applications; radar, sonar, and sensor array beamforming and direction finding; communications signal processing; low power, multi-core and system-on-chip signal processing; sensing, communication, analysis and optimization for cyber-physical systems such as power grids and the Internet of Things.
信号和数据分析的理论、算法、性能分析和应用,包括物理建模、处理、检测和参数估计、学习、挖掘、检索和信息提取。“信号”一词包括语音、音频、声纳、雷达、地球物理、生理、(生物)医学、图像、视频和多模态自然和人为信号,包括通信信号和数据。感兴趣的主题包括:统计信号处理、谱估计和系统辨识;滤波器设计;自适应滤波/随机学习;(压缩)采样、传感和变换域方法,包括快速算法;用于机器学习的信号处理和用于信号处理应用的
机器学习;网络与图形信号处理;信号处理中的凸和非凸优化方法;雷达、声纳和传感器阵列波束形成和测向;通信信号处理;低功耗、多核、片上系统信号处理;信息物理系统的传感、通信、分析和优化,如电网和物联网。
--
---
英文摘要:
Voltage Source Converters (VSC) are becoming more common in modern High Voltage DC (HVDC) transmission systems. One of the major challenges in a multi-terminal VSCHVDC is protection against DC side faults. Two major designs, namely, the hybrid DC breaker and the assembly HVDC breaker, are compared for operational behavior, speed of operation and current carrying capability. The Dual Modular Redundancy (DMR) technique is utilized for decision making of a fault scenario. This uses a dual voting system when one result contradicts the other. This helps in the design of a fail-safe mechanism for the operation of both types of breakers. Current threshold combined with directional change is considered for the breaker operation. A three-terminal bipolar VSC HVDC system is designed in PSCAD/EMTDC and simulation results are utilized to draw a comparison of the two different designs of DC breakers.
---
PDF链接:
https://arxiv.org/pdf/1806.07546