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A Direct Torque Control Characteristics of SRM using PWM Approach  

Lee, Dong-Hee (경성대 전기전자메카트로닉스공학부)
Wang, Huijun (경성대 전기전자메카트로닉스공학부)
Ahn, Jin-Woo (경성대 전기전자메카트로닉스공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.13, no.3, 2008 , pp. 179-185 More about this Journal
Abstract
In this paper, an advanced torque control scheme of SRM using DITC(Direct Instantaneous Torque Control) and PWM(pulse width modulation) is presented. Different from conventional DITC method, proposed method uses one or two switching modes at every sampling time, instead of only one switching mode. The duty ratio of the phase switch is regulated according to the torque error and simple control rules of DITC. Moreover the sampling time of control can be extended, which allows implementation on low cost micro-controllers. A simple calculation of PWM can assure a constant switching frequency with an excellent control performance. The proposed control method is verified by the simulations and experimental results.
Keywords
SRM(Switched Reluctance Motor); DITC(Direct Instantaneous Torque Control); PWM(Pulse Width Modulation); Torque Ripple;
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  • Reference
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