New two chamber transfer switch for 6500 A commutation current
Global Energy Interconnection, 2018 HVDC transfer switches are used in different locations in electrode lines of HVDC transmission systems for their reconfigurations. They have to carry and commutate currents to the overload currents of HVDC transmission systems, which increased to 6,400A ...
Lutz-Rüdiger Jänicke +4 more
doaj +1 more source
Fault mode operation strategies for dual H-bridge current flow controller in meshed HVDC grid [PDF]
, 2018 Peer ...
Carvalho, Adriano +5 more
core +2 more sources
High Voltage, EarlyView.ABSTRACT The surface charge accumulation on insulators is one of the important factors that limit the development of high‐voltage direct current (HVDC) gas insulated transmission line (GIL), and the accurate measurement of surface charge is the basis to explore its physical mechanism.
Lei Zhang +3 more
wiley +1 more source
Application of a Novel Stability Control System for Coordination of Power Flow Control Devices in the Future GB Transmission System [PDF]
, 2014 With increasing large-scale renewable energy sources in the UK and the need for adequate transmission capacity to accommodate the upcoming renewable generations, more state-of-the-art power flow control devices such as embedded High Voltage DC (HVDC ...
Bradely, ME +3 more
core +1 more source
High Voltage, EarlyView.ABSTRACT The harmonic current and vibration of a converter transformer are effective pieces of information for detecting mechanical faults in the winding. In this paper, the ratio of vibration acceleration to the current squared is defined as the vibration frequency response function (VFRF) of the winding, and then, a novel online vibration frequency ...
Shuyu Wu, Fan Zhang, Shengchang Ji
wiley +1 more source
A Novel Protection Scheme for MMC-HVdc Transmission Lines Based on Cross-Entropy of Charge
IEEE Access, 2020 MMC-HVdc transmission system has become the mainstream of power construction and plays an increasingly important role in the power system. However, the dc line fault results in shutting down of the converters, which can greatly endanger the security of ...
Chuanjian Wu, Dahai Zhang, Jinghan He
doaj +1 more source
Economic Aspect of Hvdc Transmission System for Indonesia Consideration in Nuclear Power Development [PDF]
, 2009 ECONOMIC ASPECT OF HVDC TRANSMISSION SYSTEM FOR INDONESIA CONSIDERATION ON NUCLEAR POWER DEVELOPMENT. As a country with hundreds million people, Indonesia needs to generate large scale power and distribute it to thorough country to improve gross domestic
Liun, E. (Edwaren)
core
Distributed Primary Frequency Control through Multi-Terminal HVDC Transmission Systems [PDF]
, 2015 This paper presents a decentralized controller for sharing primary AC frequency control reserves through a multi-terminal HVDC grid. By using Lyapunov arguments, the proposed controller is shown to stabilize the equilibrium of the closed-loop system ...
Andersson, Göran +4 more
core +1 more source
Dynamic Behaviour of Bubbles in Oil Under Electrothermal Ageing
High Voltage, EarlyView.ABSTRACT During long‐term operation of converter transformers, the internal oil–pressboard insulation undergoes irreversible degradation. Partial discharge in the weakened insulation will cause the formation of a large number of bubbles in the insulating oil.
Hongbin Wu +7 more
wiley +1 more source
Development and implementation of a LabVIEW based SCADA system for a meshed multi-terminal VSC-HVDC grid scaled platform [PDF]
, 2016 This project is oriented to the development of a Supervisory, Control and Data Acquisition (SCADA) software to control and supervise electrical variables from a scaled platform that represents a meshed HVDC grid employing National Instruments hardware ...
Mora Comas, Gisela
core