High-voltage Thyristors for HVDC and Other Applications: Light-triggering Combined with Self-protection Functions
نویسندگان
چکیده
High-power thyristors with direct light -triggering and integrated protection functions can be utilized advantageously for applications in which several thyristors are connected in series. This applies in particular to High-Voltage DC (HVDC) transmission, Static Var Compensation (SVC), converters for medium voltage drives, and also to certain pulse power applications. Recent progress in both device innovations and optimization of some application systems is reviewed in this article.
منابع مشابه
An Examination of AC/HVDC Power Circuits for Interconnecting Bulk Wind Generation with the Electric Grid
The application of high voltage dc (HVDC) transmission for integrating large scale and/or off-shore wind generation systems with the electric grid is attractive in comparison to extra high voltage (EHV) ac transmission due to a variety of reasons. While the technology of classical current sourced converters (CSC) using thyristors is well established for realization of large HVDC systems, the te...
متن کاملAnalysis of HVDC and HVDC Light Technology
Transmitting power at high voltage and in DC form instead of AC is a new technology proven to be economic and simple in operation which is HVDC transmission. The HVDC (High Voltage Direct Current) technology is used to transmit electricity over long distances by overhead transmission lines or submarine cables. It is also used to interconnect separate power systems. A further development in this...
متن کاملHigh Voltage Surge Arresters for Protection of Series Compensation and HVDC Converter Stations
The efficiency of overhead power lines can be increased by series compensation or HVDC transmission. These complex systems can be protected from overvoltages by metal oxide surge arresters. Both porcelain and polymer tube design surge arresters are used for these applications, however, polymer tube design surge arresters offer various advantages over porcelain arresters such as light weight, ex...
متن کاملModern Control and Protection System for Hvdc
For High Voltage Direct Current (HVDC) applications, the control and protection system plays an essential role in the overall performance of the transmission system. The control and protection system adopted by ABB Power Systems uses the latest technology from the fields of electronics and microprocessors. The main objective of this paper is to describe the experience from using the MACHTM (Mod...
متن کاملApplication of HVDC Light to power system enhancement
HVDC Light is the most recent HVDC technology based on Voltage Source Converters (VSC) and extruded DC cables with power units up to 200 MW. HVDC Light converters include Insulated Gate Bipolar Transistors (IGBT’s) and operate with high frequency Pulse Width Modulation (PWM) in order to get high speed control of both active and reactive power. HVDC Light cable is a cable with insulation of extr...
متن کامل