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This study evaluates the power characteristics of a novel permanent magnet flux switching generator (PMFSG) for a low-speed wind turbine. The PMFSG is an outer-rotor type generator. An induced voltage is generated by the change in the magnetic flux flow when the relative position of the teeth changes. The 2-D finite element method (2D-FEM) is used to analyze the PMFSG. The results reveal that the...
The objective of this paper is to determine a suitable rotor structure with high-power performance for a small-scale wind power permanent magnet synchronous generator (PMSG). Five types of rotor structures are considered: a surface-mounted permanent magnet (SPM), an inset PM, a tangentially-magnetized interior permanent magnet (IPM), a radially-magnetized IPM, and a V-shaped IPM. All have magnets...
The objective of this paper is to determine a suitable rotor structure for high-power performance for a large-scale direct-drive wind power permanent magnet synchronous generator (PMSG). The rotor structure generally uses a surface-mounted permanent magnet (SPM). Salient pole machines which use both magnet and reluctance torque are examined to obtain high-power performance in the PMSG. Four types...
This paper proposes a generator control method for a variable-speed wind power generation system using an interior permanent magnet synchronous generator controlled by a direct torque control scheme. The proposed system has neither a wind speed sensor nor a generator position sensor, and is expected to have cost and reliability advantages for small power generation systems. It also offers several...
A variable-speed wind power generation system, based on direct torque control (DTC) of an interior permanent magnet synchronous generator (IPMSG), is proposed herein. The proposed system can achieve the MPPT control without wind speed in addition to the speed and position sensorless control as well as the current control method. DTC has several advantages such as simple system configuration, easy...
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