Konstantin Borisov

• Doctor of Philosophy
• Carrier

This paper presents a novel reference signal generator (RSG) for voltage-source converters (VSCs) that enables the maximization of its functionality. The proposed RSG is based on a combination of the Fortescue decomposition with recursive discrete Fourier transform. The method is characterized by computational efficiency, excellent detection accura...

Several methods for the generation of the control reference signals for active compensators have been proposed. Many of those reference signal generation techniques use filters to extract the desired components of the current. Frequency-domain methods are generally not used due to high computational complexity as well as susceptibility to frequency...

Multifunctional power electronic converters are used in shipboard power systems for various needs including energy conversion from one form to the other, power generation, and transmission. The ability to do more functions with a single power electronic converter is desired in shipboard power systems, especially when there is an inadequate energy m...

A novel reference signal generator is proposed for active power filters. The method takes advantage of a computationally efficient Recursive DFT and it is based on extraction of the positive sequence component from the measured current with the Fortescue decomposition. The extraction of the positive sequence component ensures the correct evaluation...

Shunt active power filters (APF) are commonly used for the reduction of current harmonics and improvement of the power factor in power systems with nonlinear loads, such as diode rectifiers. A PWM power converter constitutes the main component of the APF. The low-order harmonics of the line current are attenuated, but the switch-mode operation of t...

This paper presents a novel reference signal generator for voltage sourced converters that allows for the maximization of its functionality. The proposed reference signal generator is based on a combination of the Fortescue decomposition with recursive DFT. The method is characterized by computational efficiency, excellent detection accuracy and fa...

Shunt active power filters (APF) are commonly used for the reduction of current harmonics and improvement of the power factor in power systems with nonlinear loads, such as diode rectifiers. A pulsewidth modulation (PWM) power converter constitutes the main component of the APF. The low-order harmonics of the line current are attenuated, but the sw...

Multifunctional voltage source converters can significantly contribute to the flexibility of energy management in shipboard power systems. The ability to do more functions with a single device is desired, especially when there is an inadequate energy management resource, or unexpected demand that may appear as a result of battle damage or power sys...

An extensive experimental investigation of a 40-hp ac drive was conducted with the focus on mitigation of the acoustic and electromagnetic noise, and vibration, by means of random pulsewidth modulation (RPWM) employed in the drive's inverter. The drive was a laboratory model of an electric propulsion system for naval vessels, particularly electric...

The future vision of naval electric distribution systems describes a system capable of supplying an electric propulsion system as well as other demanding loads such as high power pulsed loads. The system must also be flexible and reconfigurable. Such a system, containing numerous power electronic devices, will require appropriate compensation syste...

A novel random pulse-width modulation (PWM) technique for three-phase voltage-source inverters, characterized by low computational overhead, a variable switching frequency, and a constant sampling frequency, is presented. The technique is based on two strategies: 1) the so-called arithmetic PWM (APWM), which yields the same switching patterns as th...

Results of two interrelated studies devoted to assessment of mitigating effects of random pulse width modulation on the electromagnetic and acoustic noise generated in vehicular AC drives are presented. Computer simulations and experimental investigation have demonstrated that the random modulation, especially its technically convenient RPWM II ver...

A novel random PWM technique for three-phase voltage-source inverters, characterized by a minimum computational overhead, a variable switching frequency, and a constant sampling frequency, is presented. The technique is based on two strategies: (1) the so-called arithmetic PWM (APWM), which yields the same switching patterns as the classic space-ve...

An extensive experimental investigation of a 40-hp ac drive has been conducted with respect to mitigation of the acoustic and electromagnetic noise, and vibration, by means of randomized pulse width modulation employed in the drive's inverter. The drive was a laboratory model of an electric propulsion system for naval vessels, particularly electric...