R. Piotuch

Hybrid excited synchronous machine with flux control possibility

The paper presents simulation and experimental results of an Electric Controlled Permanent Magnet Synchronous (ECPMS) machine that offers an extended magnetic field control capability which makes it suitable for battery electric vehicle drives. Rotor, stator and additional direct current supplied coil of the machine have been analyzed in detail. Control and power supply systems of the machine have been presented. Influence of the additional excitation on the machine performance has also been discussed.

Improved Control System of PM Machine with Extended Field Control Capability for EV Drive

The paper presents novel concept of prototyping, analysis and optimization of an Electric Controlled Permanent Magnet Excited Synchronous Machine (ECPMSM) drive with a field weakening capability for electric vehicle (EV). Operation modes, features, characteristics, FEA and analytical results, improved control system of the machine, and schematic diagram of EV central drive system with ECPMSM machine were also presented.

Adaptive deadbeat current controller for IPMSM

This paper presents an idea of adaptive predictive current controller for IPMSM (Interior Permanent Magnet Synchronous Machine). It consists of introduction to predictive control techniques applied for current control, mathematical formulation of a control problem, simulation results and summary. Simulations consider also robustness of classic deadbeat controller to object parameter changes and comparison of control quality of adaptive, classic and hysteresis controller with constant sampling time.

Nonlinear predictive current controllers for Permanent Magnet Synchronous Motor

The work presented in this paper relates to nonlinear predictive current controllers applied in Permanent Magnet Synchronous Motors (PMSM) control systems. The first control scheme is the simplest one - it predicts future evolution of currents for each inverter key configuration, and selects the one that minimizes given cost function. The next control scheme uses three configurations in order to minimize current ripples. The duration of selected key configurations is calculated in order to move current vector as close as possible to the set current vector. To define the duty cycles of each inverter configuration there is applied a heuristic method. Motor parameters were calculated with FE (Finite Element) model created in Maxwell and were also verified experimentally on a test stand. A motor model was based on industrial stator and windings, and rotor with buried magnets, previously optimized, designed and constructed. Simulation of the proposed control algorithms were carried in Matlab using scripting language - without Simulink.

Comparison of two synchronous motors with interior magnets

The paper presents two prototypes of Interior Permanent Magnet Synchronous Motor (IPMSM) and their experimental and simulation results comparison. After the optimization, two different rotors have been constructed and tested. Particularly self and mutual winding inductances as well as dand q-axis inductances were evaluated. The torque values for different currents and power angles, as well as induced voltage, were measured and compared with calculated values. Finally self and mutual waveforms of inductances of a phase windings were measured and simulated. Streszczenie. W pracy przedstawiono porównanie wyników symulacji i pomiarów dwóch prototypów maszyn synchronicznych z zagnieżdżonymi magnesami trwałymi (IPMSM). Wykorzystując wyniki wcześniejszych optymalizacji zbudowano i następnie przebadano dwa różne wirniki. Wyznaczono wartości indukcyjności własnych i wzajemnych, a także indukcyjności w osiach di g-. Dokonano obliczeń i pomiarów wartości momentu elektromagnetycznego dla różnych prądów, a także indukowanego napięcia, momentu zaczepowego i funkcji sprawności. Ostatecznie zmierzono i zasymulowano przebiegi indukcyjności własnych i wzajemnych uzwojeń fazowych. (Porównanie dwóch wariantów maszyny synchronicznej z zagnieżdżonymi magnesami trwałymi).

Dead-Beat predictive current controller for PMSM

This paper presents a simulation and experimental results for Dead-Beat predictive controller that have been applied in PMSM control system. Efficiency and current maps have been defined as well as all main parameters that occur in commonly used dq models.