Ivo Veselý

Brno University of Technology · Department of Automation

The paper discusses the basics of communication systems for open, safe, secure, near realtime, standardized communication interfaces and examines the problem of a unified architecture to comply with the principles of Industry 4.0 as applied to enterprises of the future. The first part of the analysis presents Open Platform Communication - Unified A...

This article deals with the identification of synchronous motor parameters with permanent magnets using the model-reference adaptive system (MRAS). This method can effectively identify two parameters. These parameters are the stator resistance and the BEMF, under certain conditions as well as the direct inductance. MRAS method is based on two diffe...

This paper discusses the smart energy model of a smart grid using a significant share of renewable energy sources combined with intelligent control that processes information from a smart metering subsystem. An algorithm to manage the microgrid via the demand-response strategy is proposed, accentuating the requirement that the total volume of energ...

The following paper describes an online identification of a stator resistance of a permanent magnet synchronous motor. The resistance is identified by two methods. The first one is a frequency analysis based on an injection of a harmonic signal to the control. This method utilizes knowledge of synchronous motor schema in d-q coordinates and it is b...

The goal of the paper is to introduce specialists from industry into the important phenomenon of the recent technology and to explain cyber – physical and informatics background of the platform Industry 4.0 and basic steps in any design and implementation of the Industry 4.0 systems. Authors introduce readers in both the RAMI 4.0 as well as the Ind...

The paper describes the design and management of smart sockets that are wirelessly controlled by a central unit. Each socket has an integrated sensor designed to measure the current consumption of the device; if necessary, this sensor can remotely disconnect the unit plugged in a concrete socket from the AC network. The final section of the article...

This contribution deals with modelling of a smart grid with a significant ratio of renewable energy sources. The physical model of an integrated smart grid enables modelling of different control strategies. The grid was designed to test various methods of control, such as an energy efficiency or a utilization of demand response, along with a weathe...

This paper presents H∞ LPV approach to speed control of induction motor. Robust controller is designed using hybrid current-flux d-q equations of an induction machine. Rotor speed is taken out from these equations and it is used as a scheduling variable. Resulting control effort is computed as a sum of weighted control efforts of each vertex contro...

The paper describes two levels of control that are used for an efficient transfer of energy in a Smart Grid (a lower and higher level). This grid consists of several storage sites and resources. Each part of the model simulates various uses of resources or a storage. The lower level of control handlesa safety of the system and a fundamental moving...

The following paper describes an identification of quadrature inductances of a permanent magnet synchronous motor. This identification is a frequency analysis base on an injection of a harmonic signal to control. This method utilizes knowledge of synchronous motor schema in d-q coordinates and it is based on mutual signals correlation. This method...

The paper discusses a hydrogen circuit embedded in an Electric energy network. The circuit is instrumental for electrical energy storage whenever all the batteries (accumulators) within the network are charged, and a constant energy surplus exists in the network. The generated surplus energy is then converted to hydrogen, which is stored in a metal...

This contribution deals with modelling of a smart grid with a significant ratio of renewable energy sources. The physical model of an integrated smart grid – a smart metering system (SEM) enables modelling of different control strategies. Due to the Energy Efficiency Directive of EU Commission, Article 15.8, authors have applied the Demand response...

The article deals with mathematical modelling of a system for ex-vivo lung perfusion. The system which is modelled here is named Mobile Circulatory Module and is designed for transport of live lungs namely porcine or human lungs. Transported lungs should be used for various research or even for transplantation. The article describes mathematical mo...

This contribution deals with an idea of smart grids, a physical realization of a DC smart grid laboratory model (E.E.N.) and a strategy of its control. An authors' idea is to utilize a maximum of renewable energy which is available in an every moment. It would be a logical and the most economical principle, but it is in a contradiction with physica...

A robust linear parameter variant current controller operating in wide range of rotor speeds is designed for permanent magnet synchronous motor. Wide speed range is achieved without increasing the conservatism often caused by rotor speed uncertainty. Rotor speed is used as a scheduling variable and the controller adjusts itself to any change of thi...

The following paper describes the identification of the direct and quadrature inductances of permanent magnet synchronous motor. The identification is based on the Hammerstein model, where the motor is divided into linear dynamics and static nonlinearity. The newton's method is used for identification of the inductance from the static nonlinearity.

This paper describes the identification of permanent magnet synchronous motor through Hammerstein model. Motor is divided into two systems: a static nonlinear part and dynamic linear part. The only static nonlinear part is used for identification of quadrature and direct inductance by numeric methods namely Newton method and Gauss-Newton method. Th...

This paper describes online method of synchronous motor parameter identification (online improved frequency analysis). Paper mainly describes the identification harmonic signal injection in the online mode, and various adjustments that have been made on the original offline methods for using in the online mode. These adjustments increase the sensit...

The paper deals with model predictive speed control algorithm of interior permanent synchronous machine with an external field weakening in dq-coordinates (based on the Field Oriented Control). Explicit model predictive controller is evaluated by using the Multi-Parametric toolbox. Simulations are carried out in MATLAB/Simulink environment.

This article describes the testing of the Matlab model using NI CompactRIO real-time embedded controllers. If workplace has MATLAB and LabVIEW, the realization of testing becomes much cheaper than buying the Matlab real-time modules. The paper describes how to install all the programs and how to connect these programs each other, so we could easily...

This paper describes method of synchronous motor parameter identification. This is improved frequency analysis (IFA). This method is mainly used for off-line identification parameter and is very resistant to noise. Because it is useful for this identification we use this method for on-line identification parameter. But this method has several disad...

This contribution deals with a system of measurement, prediction and energy saving. The aim of the project is to develop and implement a cheap, simple system for small energy consumers to monitor and to control the energy consumption. By using information from the system, the small consumers could find a way how to save energy or how to move an ene...

This paper describes two methods of synchronous motor parameter identification. These are improved frequency analysis (IFA) and method using Ohm's law and time constant measurement. The article compares the accuracy of both methods in ideal conditions as well as in the presence of noise. Finally, the best method is implemented into DSC.