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   Torque and Speed Control of Inverter-Fed Interior Permanent Magnet Synchronous Motor Using Sliding Mode   [View] 
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 Author(s)   V. Comnac; M. Cirstea; M. Giamusi; R-M. Cernat 
 Abstract   The paper presents a digital control system of speed for an interior permanent magnet synchronous motor (IPMSM), based on the sliding mode control of the electromagnetic torque. The design of the control system relies on the invariance of the reactive and electromagnetic torques property in relation to the change of the reference frame of the space vectors. The torque controller was designed taking into consideration a model of the machine in the rotating reference frame attached to the stator flux space phasor. The feedback signals are determined by using the measured values of currents and voltages in the fixed two-phase system (  7KHUHIHUHQFHIRUWKHUHDFWLYHWRUTXHLVdeduced by using the orthogonal system attached to the rotor (d-q). The reactive and electromagnetic torques are controlled by non-linear hysteresis controllers; their output signals are used for generating the control signals of the inverter, based on switching tables. The angular velocity controller is linear, of I+PI type. The real time simulations of the control system in C++ confirm the proposed solution. 
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Filename:EPE1999 - PP00889 - COMNAC.pdf
Filesize:208.1 KB
 Type   Members Only 
 Date   Last modified 2004-03-30 by System