199 results found.
Year: 2010, Volume: 10, Issue: 4
... method for positioning an antenna system, based on these filters, where embedded control systems in rockets, air navigation, and the filter is applied in detection of electromagnetic field extremal control of rapid technological processes. gradient. Control algorithm is based on improved method of This paper is organized as follows. In Section 2 we ...
Terms matched: 1 - Score: 24 - 7,087k
Year: 2010, Volume: 10, Issue: 3
... sq ˆ2 sq parameters identification and accuracy of the estimations, Te= p isx+ isy sd isx+ isy 2 ˆs ˆs ˆs ˆs the estimation of the electromagnetic torque is essential for the entire system performance. For flux estimation, the 3 voltage model is preferred in this study. Te= p ˆ s isy ...
Terms matched: 1 - Score: 24 - 883k
Year: 2018, Volume: 18, Number: 3
... By replacing Eqs. (6) in Eqs. (1 ), the following voltages fr- friction coefficient; equations can be expressed by: Te- electromagnetic torque; d ids1, 2 Tr- load torque; Vds1, 2 € Rs1, 2 ids1, 2 € Ls1, 2 € Ω- mechanical ...
Terms matched: 1 - Score: 23 - 1,602k
Year: 2012, Volume: 12, Number: 2
... €“ axis equivalent circuit based on the steady-state power characteristics of the turbine, with base wind speed (= 9 m/s ); maximum power at The electromagnetic torque can be derived from: base wind speed (1 p.u of nominal mechanical power); base rotational speed (0.9 p.u of base generator speed) ...
Terms matched: 1 - Score: 22 - 995k
Year: 2020, Volume: 20, Number: 3
... reference frame (Fig. 1) is given by the voltage equations p- number of pole pairs; [5, 8]: Ce, Cr- electromagnetic and load torque, respectively; d ™s J- inertia moment of the DFIM; Vs € Rs I s € € j s ™ s (1a ...
Terms matched: 1 - Score: 20 - 1,978k
Year: 2014, Volume: 14, Number: 3
... speed of space vector u (t) is given by: between limits that are to be taken into consideration. The d same applies to oscillations of resulting electromagnetic u (t) € € cos 2 (tg)/ (4) torque and, respectively, to the rotor speed, etc. dt ...
Terms matched: 1 - Score: 20 - 718k
Year: 2012, Volume: 12, Number: 4
... [22]. The vector control needs to know Ψm- rotor flux linkage; the rotor position and usually uses an encoder for this Te, Tl €“ electromagnetic and load torque, respectively; purpose. There are also sensorless control algorithms that ‘s- stator angle relative to the d-q reference system; estimate the rotor ...
Terms matched: 1 - Score: 20 - 1,013k
Year: 2010, Volume: 10, Issue: 1
... ) machines, the only problem is finding the command method that gives us a six phase system with a less oscillatory cos(‰ot+ 4€ /3) electromagnetic torque. The problem consists in finding a matrix M known as the modulation matrix, so that II. THEORY OF THE MATRIX CONVERTER[ Vo]= ...
Terms matched: 1 - Score: 19 - 767k
Year: 2007, Volume: 7, Issue: 1
... Electrical Dept. Abstract €” In the vicinity of the electric power network and international bodies have proposed or set limits referring to near to the power electrical equipments the electromagnetic the field values for the EMC phenomena and for the environment includes electric and magnetic fields, mainly at biological exposure. In some cases, in the vicinity ...
Terms matched: 1 - Score: 19 - 435k
Year: 2015, Volume: 15, Number: 3
... output signal. coil. The operation principle of the vibrating wire transducer is based on the dependency of the wire's natural vibration Index Terms €” coils, damping, electromagnetic fields, frequency and the wire's tension [2 ], [18]. frequency, transducer. For the two coil transducer, an equivalent circuit is ...
Terms matched: 1 - Score: 19 - 1,220k