Search Results - rajapandian ayyanar

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  1. Inverters are devices typically used in solar power generation systems to convert electric current to a more useful type, but are prone to failure and are the main cause of malfunction in solar power systems. Using transformer-less (TL) inverters is a desirable alternative because of their higher efficiency, lower size, and lower cost. However, TL ...
    Published: 7/15/2016
  2. Power electronic converters (both DC-DC and DC-AC) are being developed with higher switching frequencies in order to reduce filter size, resulting higher power density, improved transient performance, and less electromagnetic interference (EMI). However, higher switching frequencies also result in proportionally higher switching losses. A solution ...
    Published: 10/24/2014
    Inventor(s): Rajapandian Ayyanar
    Category(s): Energy & Power
  3. Background Current inverters for solar power systems are prone to failure and the leading cause of malfunction in solar systems. It is desirable to use transformer-less topologies that are more reliable and longer lasting. Using inverters that do not contain transformers results in higher efficiencies, significantly lower size, weight, cost, and c...
    Published: 4/18/2013
    Inventor(s): Rajapandian Ayyanar
  4. Three phase PWM converters are widely used in numerous applications including adjustable speed motor drives, uninterruptible power supplies and grid integration of renewable and distributed resources such as solar photovoltaics. Some of the important metrics of performance for these converters are related to the amount of total harmonic distort...
    Published: 1/18/2012
    Keywords(s):  
    Category(s): Semiconductor Devices
  5. A dual active bridge (DAB) DC-DC converter is ideally suited for high-power, galvanically isolated DC-DC conversion. The DAB DC-DC converter has advantages of high power density, Zero Voltage Switching (ZVS), bidirectional power transfer capability, a modular and symmetric structure, and simple control requirements. The DAB DC-DC converter can ...
    Published: 1/9/2012
    Keywords(s):  
    Category(s): Semiconductor Devices

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