Denis V. Makarov

Modeling of dual Z-source inverter for aircraft power generation

This paper presents dual Z-source inverter, which can improve quality of output voltage. The paper also presents the simulation results of dual Z-source inverter for aircraft power generation.

Voltage stabilization in permanent-magnet synchronous generator with variable rotation frequency

The paper proposes the analysis of three design and control scenarios for the system intendeded to generate the variable-frequency and constant-voltage electric energy on the basis of a synchronous generator and a paralleled semiconductor converter. The research scientists demonstrate the stabilization of the synchronous generator voltage, evaluation of basic electrical parameters, and the relationship between them and operation modes of the system.

Generation system of electric energy of “variable speed - variable frequency - constant amplitude” type

In this paper the generation system of electric energy is considered for aircrafts based on the principle of modification of an equivalent magnet gap in the synchronous generator with constant magnets (PMSM) by means of magnification of a consumed reactive current by a voltage inverter (AF). The basic energetic characteristics of such system have been obtained. Mathematical expressions, set of curves of voltage, PMSM currents, AF and other active components of system are presented. The results of mathematical simulation of the considered system in the SIMULINK environment of the MATLAB package are given.

The method of data exchange between high performance PWM modulator and MCU

This paper describes an implementation of the serial peripheral interface (SPI) between a microcontroller and a FPGA in a hybrid digital control system for high power converter with increased switching frequency. Detailed description of the FPGA SPI realization is given including CRC processing. Proposed interface can be used in a digital control system for a power converter with a complicated modular structure and higher switching frequency.

Analysis of electromagnetic processes in the three phase multizone current source inverter

In this paper detailed analysis of the electromagnetic processes in the new multizone current source inverter was carried out, resulting in the analytical ratios for the qualitative evaluation of the load currents, depending on the relative resistance of the load, as well as an external characteristics of converter by using the method of differential equations algebraization was obtained [1]. The results of this analysis are summarized for any number of converter zones working on a capacitive divider. In addition, the results of analysis are confirmed by computer simulation of three-phase multizone current source inverter by PowerSIM software.

Analysis of coupled inductors in AC variable frequency generation system

This paper proposes an approach for minimizing weight of variable-frequency constant-amplitude power generation system. The system consists of a permanent magnet generator and semiconductor converters with coupled inductors that provide aircraft power supply. The main approach to maintain an amplitude of generated voltages is using of reactive power injection into the stator as a means of regulating the stator voltage. The main results of calculations are presented.

Z-source inverter with neutral point

This paper proposes a novel inverter for four-wire systems. The number of used transistors is reduced in a Z-source inverter with neutral point as compared with known schemes of Z-source inverter for four-wire systems. It increases reliability and efficiency. The scheme operation is verified by simulation.

Comparison of Dual Z-Source inverter and DC-DC boosted PWM inverter for aircraft power generation system

The Dual Z-Source inverter scheme with improved quality of the produced voltages is considered. Simulation results of the converter as a part of the aircraft variable-speed/ constant frequency power generation system are presented. The considered scheme is compared to that consisting of a Pulse-Width Modulated (PWM) voltage source inverter and a dc-dc boost converter.

Characteristics of high frequency schemes with “soft” switching

This paper presents a brief review of “soft” switching power converters. It includes resonant, quasi-resonant, multi-resonant converters with different switching pattern. It also takes in scope converters with active current shape fixation. Some words are provided to disclose SiC and GaN transistors propositions in application considered.

State-of-the-art in microelectronics class space

This paper is devoted to analysis of the state-of-the-art in electronic component base of class Space. The review covers integrated circuits for designing digital semiconductor converter control system with a high-frequency PWM control. For this purpose modern chip digital controllers, digital signal processors, field programmable gate arrays, PWM controllers, base matrix crystals (BMC) and ASIC were considered with ability to resist to special factors in open space.