Browse Conferences
An accelerated on-wafer test to improve long-term reliability of a 0.25 μm PHEMT process
Performance walkout is a phenomenon observed in AlGaAs/GaAs PHEMTs (Pseudomorphic High Electron Mobility transistors) which can adversely affect the long term reliability of devices that have applications in power amplifier design [5]. Temp...
Accelerated stress & reliability testing for software and cyber-physical systems
This paper considers the topic of accelerated testing of cyber-physical systems and software. It compares the testing of these systems to each other and to classical mechanical/electro-mechanical systems. The impact of the software (and com...
Accelerated life testing of a commercial door handle
This paper describes the test methodology, execution, and analysis of an accelerated life test (ALT) of a commercial door handle design (Fig. 1.). ALT is used to force failures to occur in less time by applying increased stresses to the com...
Harmonic modelling of voltage source converters for HVDC stations
Interest in the use of VSCs for HVDC substations is increasing rapidly due to their economical and technical advantages. Most of the work reported in the open literature has been on PWM control and VSC topologies, and in HVDC commissioning,...
Analysis of a robust DC-bus voltage control system for a VSC transmission scheme
This paper proposes a high dynamic digital control scheme for IGBT based VSC HVDC power transmission, i.e. VSC-HVDC system, based on equivalent continuous-time state-space models for the rectifier/inverter actuators, using a nonlinear appro...
Control of HVDC systems operating with long DC cables
This paper studies dynamic aspects of HVDC system operation with long DC cables. The eigenvalue analysis of CIGRE HVDC system with extended DC cable is presented. It is concluded that significant aggravation in the system stability is prese...
Small signal modelling of HVDC transmission systems
An exact small signal linear model of the HVDC converter has been published, and this paper describes two applications of the model. The first application is the calculation of steady state harmonic levels in the presence of unbalanced AC s...
A consideration of stable operating power limits in VSC-HVDC systems
The stable operating-power limits of a small scale HVDC system composed of voltage source converters (VSC-HVDC system) are analyzed with a simple model. The VSC-HVDC system could operate where the AC system must be somewhat larger in capaci...
Evaluation of the relation between voltage sourced converter performance and design parameters
To promote the application of HVDC system and FACTS devices with voltage sourced converters, it is essential to attain performance improvement and cost reduction simultaneously through the rationalization of converter design. This kind of d...
Interactive AC-DC harmonic and interharmonic analysis
Advanced frequency domain software is used, via graphical interfaces, to provide fast and accurate information of the AC-DC system harmonics, interharmonics and converter impedances on the interactive PC platform.