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The paper deals with real-time estimation of PMSM rotor position, which is based on the new, virtual HF injection signal method. The main idea of that is subtraction of virtual injection voltage from real stator voltage. This voltage is acting on PMSM model and causes a virtual current response. After subtraction of acting model current from measured real(More)
The paper deals with real-time control of PM synchronous motor for sensorless position using Power PC-MPC processor. Real parametric-and real-time model could be ideal tools for both control and simulation of the PMSM (permanent magnet synchronous motor) position drive. Unfortunately that idealized model doesn't exist so far. Such a model has to face(More)
The paper deals with real-time estimation of PMSM rotor position, which is based on the new, virtual HF injection signal method. The main idea of that is subtraction of virtual injection voltage from real stator voltage. This voltage is acting on PMSM model and causes a virtual current response. After subtraction of acting model current from measured real(More)
The thymus cyst, which is difficult to recognize before the operation may occur in children as a painless swelling of the neck An asymptomatic course of about 100 cases has been reported in the English-written literature until 2002. The cyst is localized along the thymopharyngeal duct, i.e. from the mandible angle to the upper mediastinum. The authors(More)
With increasing of microprocessors and DSP (digital signal processors) use as digital control systems in new, multiresonant power semiconductor converters, the new approaches for modeling and simulation of converters must be implemented. Designing the control system requires use of control to output transfer function for mathematical model of converter. For(More)
Blunt tracheobronchial injuries in children are rare and are associated with many diagnostic problems. Based on the successful outcome in a seven- and a twelve-year-old patient operated within 12 hours after the accident the authors discuss the development of the symptomatology and early clinical, X-ray, bronchoscopic and CT diagnosis of rupture which are,(More)
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