Classification and Analysis of Switched Reluctance Converters

Abstract

-This paper reviews and analyzes converters for SRM(Switched Reluctance Motor) drive. Conventional classification focuses on the number of power switches and diodes. It is easy to find the number of semiconductors and the cost by counting the number of active components, but it does not show the important characteristics of a power converter. The voltage ratings for the power switches and diodes are also difficult to identify. This paper proposes a switched reluctance (SR) converter configuration that is classified based on the commutation type and magnetic energy path. The converter has three parts: utility interface, front-end circuit, and power converter. Based on the overview on the conventional SR drive, the most important characteristic of the converter is determined by the topology of front-end in conjunction with the power converter. An SR converter has two parts: front-end and power converter. Inasmuch as the capacitive front-end is widely used for voltage source converters, this paper focuses on topologies for the front-end.

Control method of high-speed switched reluctance motor with an asymmetric rotor magnetic circuit

“…Fig. 3c shows the converter which allows much faster discharge of accumulated energy in the magnetic field of the machine [8]. The converter was marked as "H + 1", but in the literature it was called as "modified C-dump converter".…”

“…Fig. 3 shows three power converter topologies which meet the above mentioned condition [2,7,8]. Fig.…”

“…Several varieties of SRM converter topologies have been already presented the literature of the subject [1][2][5][6][7][8]. Fig.…”

Evaluation of Manufacturability of Embedded Sensors and Controls with Canned Rotor Pump System

“…The switched reluctance motor (SRM) drive system consists of the motor, a power converter, a digital controller, and the rotor position sensors. 1,5 A general block diagram of the complete drive system is shown in Figure 13. The power converter itself consists of the main power stage, where the energy drawn from the source flows to the motor and the control section, which regulates power flow.…”

“…6 Although a number of conventional converters for switched reluctance motors are available, different topologies for converter power stages have been researched and developed over the years. 5 A classification and analysis of the SR converters was conducted by Ahn, Liang and Lee in reference five. 5 The most typical converter topology for switched reluctance motors is the Asymmetrical Bridge, shown in Figure 14.…”