Using of high-frequency magnetic amplifier in switch mode DC power supplies

Yaskiv, Volodymyr

doi:10.1109/pesc.2004.1355675

Cited by 9 publications

(1 citation statement)

References 4 publications

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“…Magnetic amplifiers have been used in applications such as instrumentation, relays, position servo mechanism, and automatic battery chargers owing to their high efficiency, reliability and ruggedness [17][18][19]. As explained in [9], magnetic amplifiers have the ability to control a large current signal (either AC or DC) flowing in its main winding through a small DC signal in the control winding by changing the magnetization characteristics of the magnetic core [20,21].…”

Section: Modified System Configuration Using Magnetic Amplifiermentioning

confidence: 99%

Improved ride-through of PMSG wind turbine during symmetrical voltage dip using a magnetic amplifier

Ibrahim¹,

Hamad²,

Ahmed³

et al. 2013

2nd IET Renewable Power Generation Conference (RPG 2013)

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Direct-drive wind turbines based on permanent magnet synchronous generator with full scale back to back converters are becoming very promising due to their high power density, gearless structure and flexible control. With the remarkable growth of wind energy capacity connected to the utility grids, strict grid interconnection requirements of power plants comprising permanent magnet synchronous generators technology are essential to improve the control of electrical power system, both in steady-state and transient operation. Low voltage ride through capability enhancement is one of the grid requirements which ensures the safe operation of the wind farm during the network disturbances and avoids its shutdown. This paper proposes an improved topology based on magnetic amplifier in the boost converter circuit to enhance the ride through capability of permanent magnet synchronous generators based wind energy systems. λ Tip-speed ratio (TSR) ρ Air density ω Electrical rotor angular speed, (rad/s)

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