The Sliding mode control theory is applied to a sinusoidal output voltage boost inverter with linear load. The boost inverter is intended to be used in UPS design, whenever an AC voltage larger than the DC link voltage is needed, with no need of a second power conversion stage. Operation, control strategy, simulation and experimental results are'included in this paper.

Inverter's performance and operating mode may be negatively affected by inverter input (dc-link) current voltage ripple. It is a common experience that even theoretically balanced loads with perfectly supply voltages, such as multiphase ac motors supplied pulse-width modulation (PWM) inverters, in practice show certain degree of unbalance, the range few percent, which introduces low-frequency i...

To deal with the DC-link overvoltage during high-voltage ride-through (HVRT) of wind turbine, a coordinated voltage control (CDVC) scheme is proposed for enhancing HVRT performance offshore doubly-fed induction generator (DFIG) turbines equipped supercapacitor energy storage system (SESS). This formulated as two-stage problem depending on depth grid swell, which can prevent damaging converter r...

This paper proposes a high voltage ratio and low ripple interleaved boost DC-DC converter, which can be used to reduce the output voltage ripple. This converter transfers the low DC voltage of fuel cell to high DC voltage in DC link. The structure of the converter is parallel with two voltage-doublers boost converters by interleaving their output voltages to reduce the voltage ripple ratio. Bes...

this paper presents novel active filter for mitigation electromagnetic interference (emi) and other adverse effects of pulse width modulation (pwm) inverter-fed ac motor system. an active filter proposed and devised for this system is characterized by sophisticated connection of two small separate filters, capable of mitigating all the adverse effects. this paper provides high frequency models ...

In this paper, a statcom without any energy storage devices is proposed to compensate network voltage during disturbances. This statcom utilizes a matrix converter in its topology which eliminates the DC-link capacitor of conventional statcom. The modulation method for matrix converter which is used in this paper is space vector modulation. There are some methods to improve power quality for se...

It is shown that S-N-S weak links with an heavy-fermion metal as the weak link (N) can be useful thermosensors. This property is due to the large thermopower of heavy-fermion metals which is of the order 10−6 V/K. The longitudinal sound can also generate voltage oscillation due to the large Grüneisen parameter, Ωhf ∼ 10 2, in heavy-fermions. Similar effects are expected with other Kondo systems...