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In order to reduce the permanent magnet (PM) volume and combine the advantages of in-wheel motor, a novel modular-stator outer-rotor flux-switching permanent-magnet motor (MSOR-FSPM) whose PM volume is half of that in conventional outer-rotor flux-switching permanent-magnet (COR-FSPM) motor is proposed. However, cogging torque and torque ripple of MSOR-FSPM motor are especially worse due to the inherent...
In this paper, the structure of switched reluctance generator wind power system is introduced. Then compared with the existing maximum power point tracking method, a speed disturbance variable step hill-climbing search method is given. And the implementation process of maximum power point tracking is analyzed in detail. Afterwards, a strategy of the maximum power point tracking and voltage closed-loop...
This paper presents a method of controlling switched reluctance generators (SRG) for maximum efficiency where the SRG operates in single pulse mode. The analysis and modeling of experiment data showed that the optimal-efficiency turn-on angle can be characterized as a function of output power and speed. Thus the maximum efficiency is achieved where the turn-on angle is fixed at optimum value and the...
In this paper, a microprocessor-based PMSM drive with three hall-effect sensors for detecting rotor position is studied. First, three PMSM control methods, namely 120° six-step with current limit, 180° six-step with current control, synchronous frame vector control, are compared based on some key performance indexes, such as vibration, acoustic noise and efficiency. According to the analysis, a PMSM...
The paper presented a control scheme for parallel drive system of double Switched Reluctance machines. The sliding mode control algorithm is adopted in the main controller for closed-loop rotor speed control of main machine. The sliding mode control algorithm is also adopted in the subordinate controller for synchronized rotor speed and loads equilibrium distribution between main machine and subordinate...
This paper investigates the feasibility of using a topology with a squirrel-cage induction machine and a Vienna rectifier for a wind energy conversion system. Simulation results reveal that this configuration is advantageous with respect to energy efficiency and reliability compared to a traditional six-switch two-level inverter.
The control scheme of parallel drive system of the dual Switched Reluctance machines based on fuzzy logic control is proposed and verified for the first time. The system consists of main machine, subordinate machine, main power converter, subordinate power converters, main controller and subordinate controller. The main controller is used for closed-loop rotor speed control of main machine, with the...
The paper introduces the developed Switched Reluctance generator system made up of Switched eluctance generator, the power converter and the singlechip microprocessor digital controller. The excitation principles are given. The controller hardware and control strategy are also presented. The experimental tests of the developed prototype had been made on the established hardware platform. The prototype...
The switched reluctance motor drive system (SRD) is usually fed by diodes rectifier in high power application. The diodes rectifier will bring some disadvantages such as current harmonics to grid. A new switched reluctance motor drive system fed by voltage PWM rectifier is presented in this paper, and the circuit structure is given. The operating principle of the system is explained in detail. After...
Rotor cage fault detection in inverter fed induction machines is still challenging nowadays as dynamics introduced by the control or the load influence the fault indicator signals usually applied. In addition, the detection is usually only possible when the machine is operated above a specific load level to generate a significant rotor current magnitude. This paper proposes a new method to detect...
The comparison of the scheme in machine and power converter are made, such as 6/4 structure machine, 12/8 structure machine, 8/6 structure machine, 16/12 structure machine and the split supply power converter, the common switch power converter, the inductance commutation power converter, the resistance commutation power converter, the asymmetric bridge power converter, the bifilar winding power converter...
The component parts of the tested four-phase switched reluctance drive are described with the four-phase 8/6 structure double salient reluctance motor, the four-phase asymmetric bridge power converter and the 89C52 MCU digital controller. The conductive electromagnetic interference noise measurement equipment is described with the function of separated common-mode noise and differential-mode noise...
This paper proposes methodologies to realize bidirectional power transfer between hybrid electric vehicles (HEVs) and the power grid for the most common HEV configurations. Only the internal power electronics and electric machines of the vehicle's propulsion system are being used, thus avoiding additional external power converters. Theoretical analysis and simulation results verify the effectiveness...
The developed switched reluctance starter/generator system in low voltage is presented, which is made up of the three-phase 12/8 structure double salient reluctance machine, three-phase asymmetric bridge single polarity power converter and the controller. The three-phase 12/8 structure double salient reluctance machine, the three-phase asymmetric bridge single polarity power converter and the control...
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