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This paper presents the general mathematical model of double-sided splingless linear oscillating mechatronic device – oscillating motor-compressor which is supplied by thyristor voltage converter. The model presents possibilities to evaluate losses of the windings and losses in the magnetic circuit, nonlinear inductances, mutual inductances, special current feedback using harmonic analysis for the control, oscillations not only of the moving part, but also the “stator” oscillations. Also using this model such parameters can be calculated – oscillation centre drift, oscillating coordinates and velocities of mover and stator, all currents and voltages, electromagnetic force, harmonics of each time-dependent parameter., Straipsnyje aptariamas apibendrintasis dvipusio bespyruoklio švytuojamojo tiesiaeigio mechatroninio įtaiso – švytuojamojo kompresorinio variklio, maitinamo iš tiristorinio įtampos keitiklio, matematinis modelis. Šis modelis leidžia įvertinti nuostolius apvijose ir magnetinėje grandinėje, netiesinius induktyvumus, abipusį induktyvumą, naudojamą specialų srovės grįžtamąjį ryšį, kurio veikimo principas yra pagrįstas harmonine analize, o rezultatai naudojami valdymui. Šiame modelyje taip pat įvertinami ne tik judžiosios dalies, bet ir „statoriaus“ švytavimai. Naudojant tokį modelį galima apskaičiuoti šiuos parametrus: švytavimų centro poslinkį, švytavimų koordinates, tiek judžiosios dalies, tiek „statoriaus“ greičius ir pagreičius, elektros grandinės srovės ir įtampas, elektromagnetinę jėgą, taip pat kiekvieno parametro harmonikas.

Two tasks were solved in this article. It is proven that partition of synchronous reactive oscillating motors to reactive oscillating motors and pulsating current ones is baseless, since some of their behavior features and working characteristics are different only because of different supply currents. It is offered to deny this partition and supply sources and drives of these motors to call alternating current drives and pulsating current drives. The second task – square of motors‘ current is treated as dependent variable and called the converted current. This abstract variable allows to take a look at these motors deeper and visually.

This paper deals with oscillating linear synchronous pulsating current motor compressor drive supplied by sinusoidal and rectangular voltage. While creating mathematical model of the motor for investigation, Matlab software was used for solving of differential equations. Modeling results while supplying motor by sinusoidal and rectangular voltage and changing firing angle α of thyristor, frequency of voltage f and a load R. Characteristics and energetic parameters of oscillating linear pulsating current motor were obtained and analyzed.

The paper considers the issue of control of linear springless oscillating electrical motor by means of FFT analysis data of motor total current. The main idea of this control is the usage of relationships between harmonics information and oscillation velocity, distance; the controller would calculate the control signal for the next period. This control would have an advantage of fewer sensors - just current measuring sensor, and there would be no need for distance or velocity sensors, but the current sensor should be reserved. Other problem of this control is to determine relationships h=f(α, f, i0, i1, i2,..), v = f(α, f, i0, i1, i2,..), P = f(α, f, i0, i1, i2,..), Felm = f(α, f, i0, i1, i2,..). These relationships differ for various types of devices due to the hysteresis effect and construction of the devices, however they would be similar for the same series.

An approach of development of an Intelligent Mobile Tutoring Eco-Social Laboratory for Assisted Recreation is proposed based on description of: principles of designing of sustainable power supply and selecting of professional bio-feedback hardware/software for mobile laboratory, methods of creating of an ambient intelligent architecture of the Laboratory as well as of algorithms for assisted recreation to be applied, and methods to be applied for dissemination of how the Laboratory could be used as recreational tool for a typical European household/family. The Laboratory can be treated as an intelligent object containing areas for varied activities such as sleeping, working, entertaining as well as of planning, monitoring and analyzing of personal biofeedback information during the recreation activities in it. An intelligent environment of the Laboratory may be implemented in the UltraLite–type “fifth wheel” trailer which comes with all the necessities for luxury leisure time of the group of up to 6 persons. To assemble of such mobile laboratory by prices of 2009/01/15 might cost of approximate 37,806.00 Euro. This type of laboratory may help to automatically collect of an experience and knowledge in the process of development of preconditions towards of sustainable recreation of the elderly and/or people with movement disabilities based on their assisted activities in the mobile smart flat and an environment around.

This article presents the oscillation center displacement of oscillating pulsating current motor and springless compressor drive (OPCM-SCD) experiment and results. The goal during the experiment was to determine the efficiency coefficient η, power coefficient cosφ, input power P, DC I0 and AC IAC dependence on OPCM-SCD pulsating part center movement. The graphs provided analysis of the modification of OPCM-SCD position in the space, thyristor firing angle and creating the artificial uneven force for each different compressor cameras. Experiment results show that pulsating center has effect on the analyzed energetic characteristics: when the off-center is present these characteristics worsen. During model analysis and during the experiment dependencies I0=f(Δh) were received. We can say that their nature is similar, but because of the natural asymmetry of used model and the slight inefficiency of measurements, these dependencies only can be analyzed practically. This article also includes the possible structural scheme of control using the regular general current for thyristor stabilization of the pulsating center.

In various appliances and equipment of sundry transport means there is a lot of diverse mechanisms of periodical movement. So, the various piston or membrane pumps of fuel feeding and lubrication systems, circulation pumps, air and refrigerating coolant compressors, etc. are the typical examples of innovative and well promising application of the oscillating motors. In these cases the moving part of a motor can be directly connected to the working body of driven mechanism without the additional gears. Consequently, the drive can be simplified in design and improved in efficiency and reliability. Application of the oscillating rotary motors, if used in the aforesaid devices, strictly depends on specific properties of mechanical system of a motor aggregated with the driven mechanism and considered as the one‐piece unit on the whole. So, this study analyses how the properties of mechanical system, comprised of two moving parts interconnected eccentrically or centrically, can be evaluated by the equivalent rotational inertia, equivalent mass and by equivalent mechanical power factor which, in turn, determine the operating characteristics and basic possibilities of the motor. First Published Online: 27 Oct 2010

In this study, first of all, for the one-layered winding form of the rotating electrical machines, self-induction coefficient of slot leakage has been calculated according to varying forms of slot. Given the differences in the rotating electrical machines, a dataset has been created with the slot size measurements required for each slot form as well as rotor connection forms (with squirrel cage with wound rotor) representing input and with the slot equivalent conductivity representing the output. Then, a dataset has been used to train an ANN forecasting model. Coefficient of slot leakage self-induction so calculated was compared with coefficient of predicted slot leakage self-induction. With the trained ANN model, slot equivalent conductivity of a rotating electrical machine with any size for a possible slot form has been predicted with an accuracy rate of 99.998%.

The paper presents further development steps of recently proposed model of an adaptive multi-agent-based e-social care system by introducing in it an intelligent power controller to supporting people in a Smart Ecological and Social Apartment, the SESA. The schematic diagrams of the controller are proposed for adaptive control of motors and LED lights as well as for measurements of EDA, HR, and FT signals of inhabitancies in the SESA. The proposed in this paper multi-agent system consists of two groups of agents, first, the agents for human’s physiological data collection, analysis and emotional state detection, and, second, the agents for an intelligent power control which takes environmental and hardware parameters and, with the use of embedded agents, provides adaptive control of LED lights, temperature as well as of power consuming by motors used in the SESA in accordance with the human state defined by the first group of agents.