AN1017 sinusoidal control of PMSM motors with dsPIC30F DSC

POWER ELECTRONIC CONTROL OF INDUCTION MOTORS ppt

... the required rms value of the fundamental harmonic of the output phase to neutral voltage of the AC-AC voltage controller Induction machine Fig 6.5: Speed control of an induction machine by stator ... power supply source for V/f control of induction motors The second one, current source inverter (CSI), is beyond the scope of interest here Principle of operation of a threephase VSI is explained ... prevailing one in closed-loop control of induction motors fed from PWM inverters Explanation of this method however requires at first the introduction of the notion of the space vector Let us at...

báo cáo khoa học: " Control of mandibular incisors with the combined Herbst and completely customized lingual appliance - a pilot study" ppsx

... designed the study AH and RS analyzed the data DW and RS supervised the clinical sample and data collection DW treated all cases AH and DW wrote the main part of the paper RS contributed to writing the ... doi:10.1186/174 6-1 60X- 6-3 Cite this article as: Wiechmann et al.: Control of mandibular incisors with the combined Herbst and completely customized lingual appliance - a pilot study Head & Face Medicine ... shows the distribution of the planned (malocc-setup) and the achieved (malocc-end) mandibular incisor movement Seven cases were planned with mandibular incisor CCW rotation (mean value = -7 .7°) and...

Intelligent control of robots interacting with unknown environments

... interact with unknown environments While impedance control is acknowledged to be a promising method for robots interacting with unknown environments, one critical problem is the impedance control ... background and motivation for conducting the research on intelligent control of robots interacting with unknown environments Impedance control design, impedance learning, and trajectory adaptation ... motion of robots interacting with environments The ﬁrst is hybrid position/force control which aims at controlling force and position in a nonconﬂicting way [6, 7] Under hybrid position/force control, ...

Randomized algorithms for control of uncertain systems with application to hand disk drives

... Randomized Algorithms for Control of Uncertain Systems with Application to Hard Disk Drives Mohammadreza Chamanbaz B.Sc., Shiraz University of Technology (SUTECH) A THESIS SUBMITTED FOR THE ... propose two classes of randomized algorithms: i) Sequential randomized algorithms for solving uncertain convex optimization problems and ii) Randomized algorithms for solving uncertain linear and ... 3.9.1 Proof of Theorem 3.2 3.9.2 Proof of Theorem 3.3 3.9.3 Proof of Theorem 3.1 Application to Hard Disk Drive Servo Systems...

Adaptive neural control of nonlinear systems with hysteresis

... character of the hysteresis Interest in control of dynamic systems with hysteresis is also motivated by the fact that they are nonlinear systems with nonsmooth nonlinearities for which traditional control ... plant S2 with classic PI hysteresis1 02 4.13 Control signals of MIMO plant S2 with classic PI hysteresis 102 x List of Figures 4.14 Norm of NN weights of MIMO plant S2 with classic PI hysteresis ... four classes of uncertain nonlinear systems For the control of a class of strict-feedback nonlinear systems preceded by unknown backlash-like hysteresis, adaptive dynamic surface control (DSC)...

Control of mechanical systems with backlash problem

... development of software solutions of backlash problems in mechanical systems Backlash is common in many components in mechanical and mechatronic systems, such as actuators, sensors and mechanical ... Comparison between the control systems with and without the proposed backlash controller 30 1.2 0.8 0.6 0.4 0.2 Step Response without Backlash Step Response with Backlashand the proposed control scheme ... response without backlash and the one with backlash and the proposed controller 3.5 Conclusion In this chapter, a position control method is designed for systems with backlash by assuming that backlash...

Direct torque control of brushless DC motor with non sinusoidal back EMF

... electromagnetictorque when just torque iS controlled _ without flux control under 1.2 N m load with non- ideal trapezoidal back- EMF ,1 (reference torque is 1.225 N m) (a) the back- EMF is not ideally ... the control of a nonsinusoidal brushless dc motor, " in Proc IFEE-JECON Annu Meeting, Orlando, FL, Nov 610, 1995, vol 2, pp 836-843 [9] M Ehsani, R C Becerra, "High-speed torque control of brushless ... II DIRECT TORQUE CONTROL OF BLDC MOTOR DRIVES USING Two-PHASE GONDUCTION MODE The key issue in the DTG of a BLDG motor drive in the constant torque region is to estimate the electromagnetic torque...

Direct torque and indirect flux control of brushless DC motor with non sinusoidal back EMF without position sensor

... torque control of brushless DC motor based on back- EMF vector’ , ELECTROMOTION pp 128-138, 2009 [7] S B Ozturk and H A Toliyat, “Sensorless Direct Torque and Indirect Flux Control of Brushless DC Motor ... control of brushless dc motor with non- sinusoidal back- EMF, ” in Proc IEEE-IEMDC Biennial Meeting, Antalya, Turkey, May 3-5, 2007 [6] G.R Arab Markadeh and S.I Mousavi, Position sensorless direct torque ... Conduction 2.1 Principles of the Proposed Method Title Block Indirect torque control method of BLDC motor explained in [9] was extended to a direct torque and indirect flux control technique for...

Direct torque control of four switch brushless DC motor with non sinusoidal back EMF

... 1709 Salih Baris Ozturk and Hamid A Toliyat, Direct torque control of brushless dc motor with non- sinusoidal back- EMF, ” in Proc IEEE-IEMDC Biennial Meeting, Antalya, Turkey, May 3-5, 2007, vol ... the control of a nonsinusoidal brushless dc motor, ” in Proc IEEE-IECON Annu Meeting, Orlando, FL, Nov 6-10, 1995, vol 2, pp 836–843 Y Liu, Z Q Zhu, and D Howe, Direct torque control of brushless ... various cases with and without stator flux control, switch states and 2, respectively in order to demonstrate the validity of the proposed four- switch DTC of a BLDC motor drive scheme with two-phase...

Tài liệu ime Control of a Three Phase 4 Wire PWM Inverter with Variable DC Link Voltage and Battery Storage for PV Application doc

... grad r dually as a re esult of the c controllable dc link volta as indica in the ri age ated ight hand sub b diagram d Figure capacitor v voltage of the output filt with unbalanced load and controlled ... small compared to the dc voltage portion, so that it does not affect the output voltage References [1] Takao Kawabata, Takeshi Miyashita and Yushin Yamamoto, "Digital Control of three- Phase Inverter ... Inverter with LC Filter", IEEE Transactions on Power Electronics, Vol 6, No 1, January 1991, pp 62-72 [2] Takao Kawabata, Takeshi Miyashita and Yushin Yamamoto, "Dead Beat Control of threePhase PWM Inverter" ,...

Tài liệu Báo cáo khoa học: Control of the coagulation system by serpins Getting by with a little help from glycosaminoglycans pptx

... Given the plasma concentration of AT and the rates of interaction in the presence and absence of heparin pentasaccharide (Table 1), one can calculate that the half-life of enzyme activity in the absence ... future Control of the coagulation system by serpins 10 11 Acknowledgements This work was supported by the National Health & Medical Research Council of Australia, the Australian Research Council, the ... increase in the rate of interaction with factor Xa brought about by the heparin pentasaccharide-mediated conformational change occurs through a combination of the changes in the structure of the...

Tài liệu Insight into Alternative Approaches for Control of Avian Influenza in Poultry, with Emphasis on Highly Pathogenic H5N1 doc

... response to vaccination against avian influenza in zoo-birds using an inactivated H5N9 vaccine Vaccine 2007, 25, 4345–4349 43 Robinson, J.H.; Easterday, B.C Avian influenza virus infection of ... national strategies for control of high-pathogenicity avian influenza and low-pathogenicity notifiable avian influenza in poultry, with emphasis on vaccines and vaccination Rev Sci Tech 2011, 30, 839–870 ... an insight into possible alternative approaches for control of AIV in poultry particularly against the HPAI H5N1 subtype Antivirals 2.1 Chemotherapy The use of chemotherapeutic agents for control...

Effectiveness of PRECEDE model for health education on changes and level of control of HbA1c, blood pressure, lipids, and body mass index in patients with type 2 diabetes mellitus docx

... the effectiveness of the PRECEDE education model on the changes in HbA1c, blood pressure (BP), lipids, and body mass index (BMI) in patients with DM2 over the long-term (2 years) Methods Patients ... http://www.biomedcentral.com/1471 -24 58/11 /26 7/prepub doi:10.1186/1471 -24 58-11 -26 7 Cite this article as: Salinero-Fort et al.: Effectiveness of PRECEDE model for health education on changes and level of control of HbA1c, blood ... PRECEDE 12. 7 12. 3 12. 5 12. 3 0.90 -0 .2 0.85 SBP (...

QUASILINEAR CONTROL: Performance Analysis and Design of Feedback Systems with Nonlinear Sensors and Actuators pot

... the subtitle Performance Analysis and Design of Feedback Systems with Nonlinear Actuators and Sensors In view of the above, one may ask a question: If all feedback systems include nonlinear instrumentation, ... Quasilinear Control Performance Analysis and Design of Feedback Systems with Nonlinear Sensors and Actuators ShiNung Ching Massachusetts Institute of Technology Yongsoon ... linearization of the closed loop system of Figure 2.4 First, we address the case of nonlinear actuators and sensors separately and then the case of nonlinearities in both actuators and sensors simultaneously...

control of current saturation and threshold voltage shift in indium oxide nanowire transistors with femtosecond laser annealing

... prominent eﬀects of laser annealing were the improvement of the current saturation and the positive shift of the threshold voltage Vth Figure 2a shows the drain current versus drain-to-source voltage ... to control the switching threshold voltage of an inverter with the same gain at the switching threshold voltage (VM), or trip voltage, which will maximize the noise margin of the inverter The inset ... eﬀects of femtosecond laser annealing on fully transparent inverters consisting of two In2 O3 NWTs, and show that their current saturation is improved (3-7 times increase in output resistance), and...

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