EVPU

Nová Dubnica, Slovakia
Nová Dubnica, Slovakia
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Olszowski S.,University of Technology and Humanities in Radom | Buday J.,University of Technology and Humanities in Radom | Kuchta J.,EVPU | Michalik J.,EVPU
Komunikacie | Year: 2013

In self-ignition engines with Common Rail direct fuel injection, premature destruction of injectors has been observed. New elements are also touched by the problem. In order to solve it, a group of international experts in the area have gathered. Destroyed piezoelectric and electromagnetic injectors' elements of BOSCH, DELPHI, DENSO, have been examined. Mechanical damages influencing electronic diagnostic signal have been presented. Some system solutions possible to perform as far as diagnostic prevention is concerned have been described. Some useful electronic diagnostic methods of fuel system, signal analysers: RMOG and ERDIA PRO, have been presented.


Malek M.,EVPU
Journal of Electrical Engineering | Year: 2012

Almost one and a half century after the publication of Maxwell's On Governors, feedback theory with PID controllers in cascade structure is still an essential part of control structures of most controlled electric drives. There are a few control strategies which are "ready" to replace it but they usually miss one of the essential fundamentals of every successful approach - simplicity hand in hand with lucidity. But there is one close relative which is simple and powerful at the same time, is not excessively abstract and without complicated mathematics. The name of this technique is Forced Dynamic Control. In this paper forced dynamic control is presented together with direct torque controlled PMSM drive as unique combination of simple algorithms for inner and outer loop of cascade structure. © 2012 FEI STU.


Janous S.,University of West Bohemia | Sedlak J.,University of Zilina | Prazenica M.,University of Zilina | Kuchta J.,EVPU
Komunikacie | Year: 2013

The paper presents an implementation of a discontinuous space vector modulation of three phase inverter. The modulation is implemented in a DSC (Digital Signal Controller) using only one PWM module. Phases of the inverter work in a complementary mode. This implementation gives an assumption to use one DSC for simultaneous controlling of several three phase inverters. Furthermore, a simulation comparison of discontinuous and continuous space vector modulation is made.

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