2017 19th International Conference on Electrical Drives and Power Electronics (EDPE)

The cosimulation concept of Ansys Simplorer and MATLAB/Simulink program environments is presented on a case study of an electric drive. General program descriptions are given along with the step-by-step procedure of cosimulation preparation. Results, obtained by simulation in Simplorer and cosimulation are practically identical and confirm suitability of both analysis approaches. Comments and disc... View full abstract»

This contribution extends the series of papers about virtual laboratory for control of a hydraulic system that is based on Matlab/Simulink environment. It presents the application of dynamical feedforward control for a three-tank system that can run locally or via the Internet as a virtual laboratory. The controller design uses exact linearization techniques and takes into account input saturation... View full abstract»

The paper compares filtered PID control with two filtered Smith predictor modifications and experimentally points out different impact of the derivative terms in the considered controllers on the loop robustness and performance. All structures applied to a thermal plant control are based on its approximation by the first order time-delayed model. They include an nth order binomial filter for measu... View full abstract»

The paper deals with a data-based robust tuning of a controller for nonlinear first order plants combining exact linearization based nonlinearity compensation with a nonlinear disturbance observer (NDOB) based integral action. A two-step experimental control design is carried out with the aim of the fastest possible monotonic setpoint step responses and of a well damped control signal courses. The... View full abstract»

This paper deals with analysis of CAN BUS using modular measurement system CompactRio from National Instruments and graphical development environment LabVIEW. The main advantage of using this system is that user can receive and transmit CAN messages in one window of program. Send all types of CAN BUS frames is possible. Another benefit is that is possible to simulate behavior of sensor or control ... View full abstract»

This paper shall present the design, simulation and implementation of a sensorless observer for three-phase permanent magnet synchronous machines which can be used for automotive steer-by-wire applications. The observer tracks steering transients enabling the sensorless speed/position estimates to be used for backup in case of encoder failure. The sensorless method is based on a high frequency inj... View full abstract»

This paper is focused on a complex robotic process called bin-picking. It is a very known and well-researched topic in the field of robotic manipulation where the robot is expected to grasp non-oriented objects from a bin and placed them to locations within the following process flow. Although we present here a functional case study of a bin-picking system based on a modified revolving vision syst... View full abstract»

In this paper a method to control the output current of a three-phase grid connected two-level converter is presented. The current control approach is a finite control set model predictive control with sphere decoding. Sphere decoding algorithm gives a computationally efficient solution of the problem for long horizons. The goal of the control algorithm is to minimize the grid current tracking err... View full abstract»

This paper presents a stabilizing model predictive control (MPC) algorithm based on the off-line computation of sequence of 1-step controllable sets for linear parameter varying systems and a parameter learning technique that improves its performance. The presented MPC algorithm guarantees non-monotone convergence towards a suitably chosen terminal set regardless of the system parameters, while th... View full abstract»

This paper presents the design and implementation of a current controlled Rotor Flux Oriented PMSM for automotive steer-by-wire applications. The development of a realistic torque feedback reference is carried out by monitoring the steering torque while driving a commercial vehicle. The paper shall discuss the torque dynamics of the PMSM drive with respect to position demands replicating a driver ... View full abstract»

This paper presents the modelling and simulation of a low-power Brushless DC machine in a Rotor Flux Oriented mode in MATLAB/Simulink. The modelling of the machine is presented in the synchronous dq frame. Using this model suitable Proportional Integral controllers have been designed for the Rotor Flux Oriented speed and current loops. Sensorless simulation estimates obtained from a back-emf obser... View full abstract»

Testing of electric vehicle drives in real traffic conditions is relatively expensive and complicated task. Therefore new laboratory methods, enabling testing and special parameters of electric drives measurement "like in real traffic" are in the looking for. One of most effective methods is based on HIL (Hardware In the Loop) which represents combination of simulation methods and measurements on ... View full abstract»

This paper presents a simple methodology for calculation of the Permanent Magnet Synchronous Machine (PMSM) efficiency map. The presented method requires only the machine nameplate data and allows to a system designer to estimate the efficiency for different operating conditions, such as a different driving cycle in traction applications. The method has been experimentally verified for both large ... View full abstract»

An induction machine with combined star-delta stator winding is analyzed in the paper. This type of winding is used in order to suppress the selected groups of higher spatial harmonics of the current layer, magnetic flux density in the air gap, and the flux in the yoke and thus lower the losses and improve the energy efficiency. The mathematical model of the machine has been developed. The possibi... View full abstract»

High performance drives with induction machines require use of vector control. The direct torque control and field oriented control are nowadays two most applied vector control methods. The main advantage of the method for direct torque control of induction machines is its simplicity and therefore its robustness. Namely, control variables (the electromagnetic torque and stator flux vector) are est... View full abstract»

There are many publications that emphasize the advantages of C- and E-Core Flux-Switching-PM-Machines, which apply less magnet material than the conventional Flux-Switching-PM-Machine. However, most researches only focus on low-power applications beneath 1 kW. This paper investigates the performance of Flux-Switching-PM-Machines in a speed range between 1000 min^-1 and 3000 m... View full abstract»

This paper investigates the influence of geometric design variables on the machine's characteristics of low voltage permanent magnet synchronous motor for in-wheel direct-drive application. On the base of finite-element-analysis, sensitivity analysis has be performed to improve the torque density and the efficiency. The effect of different slot/pole combinations on the machine's characteristics ha... View full abstract»

The paper presents the analysis of the performances of an Outer Rotor Synchronous Reluctance Machine as potential candidate for direct-driven low speed industrial application. The influence of slot/pole combination, as well as the number of flux-barriers was investigated in order to arrive to a topology suitable for the targeted application. The proposed machine has the highest average torque and ... View full abstract»

This paper presents the design step of an outer rotor synchronous reluctance machine with concentrated winding. The beginning of the study sets the geometrical and electrical constrains. The first step of design is to determinate the optimum topology with reduced number of pole pair for a higher value of fundamental winding factor. Second step of the study is to identify how different types of rot... View full abstract»

The paper analyses a speed servo-drive with integral low-pass filters applied in the disturbance observer (DO) and in a stabilizing loop with a P-controller. The dominant loop dynamics represented by an inertial mass is approximated by a first-order model. The torque generator dynamics, together with the processing and communication delays are approximated by a dead-time. Two compared approaches f... View full abstract»