Hybrid Modular Multilevel Converter With Arm-Interchange Concept for Zero-/Low- Frequency Operation of AC Drives
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2966048
Abstract: DC-AC Modular Multilevel Converter (MMC) is a promising candidate for high-power AC drive applications. The main challenge of operating the MMC in AC drive applications is its performance during low-frequency conditions, as high voltage ripple… read more here.
Keywords: converter; low frequency; frequency; modular multilevel ... See more keywords
Physically Controlled CubeSat Antennas With an Adaptive Frequency Operation
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Antennas and Wireless Propagation Letters"
DOI: 10.1109/lawp.2019.2932474
Abstract: This letter advocates the use of mechanical actuation to alter the electrical length of components within antenna elements proposed for implementation onto a CubeSat platform. Such electrical length alteration reconfigures the antenna's frequency operation without… read more here.
Keywords: physically controlled; frequency; frequency operation; controlled cubesat ... See more keywords
Dual-Fed Hollow Dielectric Antenna for Dual-Frequency Operation With Large Frequency Ratio
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2017.2700225
Abstract: A new dual-fed dual-frequency antenna that integrates a microwave hollow dielectric resonator antenna (DRA) with a high-gain millimeter-wave dielectric Fabry–Perot resonator antenna (FPRA) is investigated. To obtain the dual-frequency operation, the dielectric and air regions… read more here.
Keywords: dual frequency; hollow dielectric; frequency; dual fed ... See more keywords
The investigation and improvement of the lifetime of high voltage ceramic capacitor under repetitive frequency operation
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Dielectrics and Electrical Insulation"
DOI: 10.1109/tdei.2017.006275
Abstract: The lifetime tests for High Voltage Ceramic Capacitors (HVCC) were investigated under repetitive frequency operation at 25 Hz and three kinds of failure modes were summarized. The significant innovation of this paper is testing HVCC,… read more here.
Keywords: frequency operation; voltage; improvement; repetitive frequency ... See more keywords
Flexible Frequency Operation Strategy of Power System With High Renewable Penetration
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DOI: 10.1109/tste.2016.2590939
Abstract: Growth of renewable penetration will increase the requirement for flexible resources. It may be a simple solution to build more flexible resources, but it is too expensive. Recently, the new construction of power plant or… read more here.
Keywords: frequency; flexible frequency; renewable penetration; power ... See more keywords