... PI controller, motor driver, DC motor and a FOAKF state estimator are present The FOAKF state estimator estimates the speed, which is feedbacked to perform the sensorless speed control of the DC ... various control approaches are used, in general emphasis is given to controlling the speed of the machines To achieve effective speed control, a closed-loop control system is used, in which motor ... presented of a FOAKF estimator-based sensorless speed control mechanism for DC motor at nonlinear and sudden load conditions The paper is organised in the following sections: In section 2, a DC motor
Ngày tải lên: 01/03/2024, 15:59
... II:DESCRIBE PROJECT -Project: Control speed of DC motors We have two ways control speed of DC motor: - Control using thysistors + Advantage: using for high-power DC motor, fast speed, applying for devices, ... use of DC motor in the industry With the increasing use of power Trang 5semiconductor units, the speed control of DC motor is increasingly getting sophisticated and precise Speed of the DC motor ... methods of speed control of DC drives namely field control methods DC motors provide high starting torque which is required for traction applications In DC motor control over a large speed range,
Ngày tải lên: 27/02/2019, 11:40
SIMULATION AND SPEED CONTROL OF INDUCTION MOTOR DRIVES
... Appendix 3: MATLAB Code for Speed Control of 3- Induction motor using Constant V/f control 60 Appendix 4: MATLAB Code for Closed Loop Speed Control of 3- Induction motor using Constant V/f 62 ... constant V/f speed control using PI controller Figure 4.15: Variation of Stator current of a 3-in case of closed loop PI control for constant V/f control method Figure 4.16: Variation of DC Bus Voltage ... diagram of an electrical drive Earlier only dc motors were employed for drives requiring variable speeds due to ease of their speed control methods The conventional methods of speed control of an
Ngày tải lên: 18/12/2013, 22:06
Báo cáo khoa học: "Biological Control of Sheep Parasites using Duddingtonia" pdf
... • Control group: The same number and breed of ewes and number of lambs of the ewes in the Fungus group was allocated to an area of comparable size, topography and pasture quality for each of ... conventionally termed biological control, this non-chemical approach to the control of nematode parasites of ruminant livestock has been exhaustively tested under laboratory and controlled field conditions ... burdens (n = 2) of tracer lambs for control and fungus treatments on sheep farms on Gotland (B and N) and Skåne (L) Tracer Test Farm B Farm N Farm L Control Fungus Control Fungus Control Fungus
Ngày tải lên: 12/08/2014, 18:21
novel observer scheme of fuzzy mras sensorless speed control of induction motor drive
... the design of sensorless control schemes of the of induction motor drive to improve the stability and the robustness of the control system The advantages of speed sensorless induction motor derives ... Sensorless Speed Control of Induction Motor Drive 1 Department of Electrical Engineering, University Mustapha Stambouli of Mascara, BP.305, Route El Mamounia, 29000 Mascara-Algeria 2 Department of ... finds lot of attention due to its good performance The analysis of the sensorless vector control system using MRAS is presented and the resistance parameters variations and speed observer using new
Ngày tải lên: 04/12/2022, 16:01
Position and speed control of a DC motor using analog PID controller
... debugging of the entire system, aided by the PCB design that included convenient test pins for efficient troubleshooting.Part 1: Position and Speed Control of a DC Motor using Analog PID Controller ... Final Appearance of the Educational Kit This app note illustrates the process of controlling the position and speed of a DC motor, serving as an educational kit to explore the impacts of proportional, ... Speed Control of a DC Motor using Analog PID Controller Part 2: Position and Speed Control of a DC Motor using Analog PID Controller The following tests have been applied while building the educational
Ngày tải lên: 28/05/2022, 09:58
AN0843 speed control of 3 phase induction motor using PIC18 microcontrollers
... ring motor functions like a squirrel cage motor SPEED-TORQUE CHARACTERISTICS OF INDUCTION MOTORS Figure shows the typical speed-torque characteristics of an induction motor The X axis shows speed ... 10-bit ADC channel on the PICmicro microcontroller determines the motor speed The microcontroller uses the ADC results to calculate the duty cycle of the PWMs and thus, the motor frequency The ADC ... frequencies Slip Speed Base Speed Synchronous speed minus base speed Speed specified on the nameplate of an induction motor Stator Break Down Torque Synchronous Motor Maximum torque on the speed-torque
Ngày tải lên: 11/01/2016, 14:28
Report of subject industrial motion control system topic controlling dc motor using trapezoidal velocity profile
... CITY HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY REPORT OF SUBJECT: INDUSTRIAL MOTION CONTROL SYSTEM TOPIC: CONTROLLING DC MOTOR USING TRAPEZOIDAL VELOCITY PROFILE Class: CCO1 - Semester: 241 ... more stable and controlled movement 6 Conclusion In conclusion, my report have fully satisfied the requirements of using Trapezoidal Velocity Profile to control the direction of DC motor through ... avoids errors Trang 74 Using Trapezoidal Velocity Profile to control a3 DOF SCARA Robot For this section, | will implement the Trapezoidal Velocity Profile to control a 3 DOF SCARA Robot in performing
Ngày tải lên: 19/12/2024, 15:43
Numerical analysis of a brushless permanent magnet DC motor using coupled systems
... behaviours of the BLDC motor Trang 111.1 Typical configurations of a DC motor and a PMDC commutatormotor 2 1.2 Typical configuration of a PMSM 3 1.3 Multiphase inner rotor BLDC motor configuration ... permanent magnet motorsare broadly classified into: • Brushed DC motor (or) PMDC commutator motor: The construction of a permanent magnet DC motor(PMDC) is similar to a DC conventionalmotor with the ... rotor BLDC motor configuration 6 1.5 Axial field type BLDC motor configuration 6 1.6 Basic components of the BLDC motor drive 7 1.7 Inverter-fed armature circuits of BLDC motors
Ngày tải lên: 16/09/2015, 12:26
Analysis and Control of Linear Systems - Chapter 14 pdf
... help of a pre-control H. Therefore, the control law is: u = Ky + Hv [14.2] where v has the role of reference input. If D =0: ˙ x =(A + BKC)x + BHv If D =0, the expressions of y in [14.1] and of ... Analysis and Control of Linear Systems 14.2.2.7. Summarization The analysis of the time behavior of a controlled system was done in the modal basis. Each mode is associated to an eigenvalue λ i of the ... bandwidth 460 Analysis and Control of Linear Systems 14. 4.2 Choice of eigenvectors of the closed loop The solution sub-space of [14. 5] or [14. 9] is of size2 m Hence, it is necessary
Ngày tải lên: 09/08/2014, 06:23
BIOLOGICAL AND BIOTECHNOLOGICAL CONTROL OF INSECT PESTS - CHAPTER 1 pdf
... loss of species dependent on the target species of biological control efforts Simberloff and Stiling (1996) argue that the few documented cases of nontarget impacts, compared with the number of ... 1973 Report to the Minister of Agriculture of the Republique of Zaire, 12 pp Hall, R W and L E Ehler 1979 Rate of establishment of natural enemies in classical biological control Bull Entomol Soc ... 1991 Diagnosis of behaviour as a tool for quality control of mass reared arthropods, pp 66–92 In: F Bigler [ed.], Quality control of mass reared arthropods Proceedings 5th Workshop of the IOBC Global
Ngày tải lên: 11/08/2014, 04:20
Identification and control of nonlinear systems using multiple models
... think of our approach as the “control ofnonlinear systems using piecewise affine models”, which is a special case of “control ofnonlinear systems using multiple models” 1.3 Identification of nonlinear ... 89 4.5 Control of the nonlinear system 2 - Method V 90 4.6 Control of the nonlinear system 3 - Method I 92 4.7 Control of the nonlinear system 3 - Method IV 93 4.8 Control of the ... 74 4.1 Control of nonlinear system 1 - Method III 86 4.2 Control of nonlinear system 1 - Method IV 86 4.3 Control of the nonlinear system 2 - Method I 88 4.4 Control of the nonlinear
Ngày tải lên: 10/09/2015, 15:50
14356481937. Comparison of Direct and Indirect Vector Control of Induction Motor
... induction motors require great understanding of the design and characteristics of these motors. 2 BRIEF THEORY OF VECTOR CONTROL (FIELD ORIENTED CONTROL) The control of separately-excited dc machines ... accordance to vector control mode of an induction motor. Trang 5Normally uncontrolled ac-dc converters are used to feed vector controlled induction motor These uncontrolled ac-dc converters draw ... controller of a separately excited dc motor This operation is implemented when the drive speed is controlled above the base speed The input to the field weakening controller is the feedback speed
Ngày tải lên: 05/08/2016, 11:07
Trapezoidal control of BLDC motors using hall effect sensors
... Overall Block Diagram of Hall-Sensor Control of BLDC Motor 12 9 Software Flow 13 10 Using AC Power to Generate DC Bus Power 15 11 Using External DC Power Supply to Generate DC-Bus for the Inverter ... Synchronization / PWM Control PID Controller I ref + BLDC Motor Figure 2 Speed and Current Control Loop Configurations for a BLDC Motor The BLDC motor is characterized by a two phase ON operation to control ... identify the type of motor in order to apply the most appropriate type of control, as described in the next sections Table 1 Comparison of BLDC and PMSM Motors Comparison of BLDC and PMSM Motors Fed
Ngày tải lên: 21/10/2016, 10:49
Modeling and control of linear motor feed drives for grinding machines
... and control techniques directly related to servo control of linear motor feed drives, great attentions are paid to the modeling of disturbances and servo control of motion in the presence of external ... phases of sliding mode control 77 Figure 5.2 Block diagram of sliding mode control strategy 86 Figure 5.3 General structure of a DOB for a SISO plant 88 Figure 5.4 Block diagram of DOB control ... Modeling of Linear Motor Feed Drives 16 2.2 Servo Control for Machine Tool Feed Drives 25 2.3 Design of Robust Control System 29 2.4 Sliding Mode Control 31 2.5 Adaptive Robust Control with
Ngày tải lên: 20/04/2017, 22:23
Control of Fusarium Verticillioides using Palmarosa essential oil (Cymbopogon martinii)
... potential of palmarosa essential oil in the inhibition of the mycelial growth of Fusarium verticillioides as well as its efficiency in the maintenance of the sanitary quality of corn seeds The use of ... the entire surface of the culture medium from one of the plaques or in a maximum period of days Mycelial growth evaluation consisted of daily measurements of the diameter of the colonies obtained ... March, 2019 We used the strain 3434 of Fusarium verticillioides yielded by the collection of phytopathogenic fungi Prof Maria Menezes of the Federal Rural University of Pernambuco, preserved until
Ngày tải lên: 13/01/2020, 22:44
control drive siemens s120 with plc rockwell via ethernet Speed control of a SINAMICS S120 with an Allen Bradley controller
... drive using the EPOS function enabled in the drive The AOIs also provide a quick implementation of basic drive control using the EtherNet/IP communication interface Using multiple instances of the ... can be controlled via the IO interface This telegram is a standard PROFIdrive telegram of 2 words in length It will control the state of the drive by selecting the appropriate bits in the control ... Trang 2Use of application examples Application examples illustrate the solution of automation tasks through an interaction of several components in the form of text, graphics and/or software modules
Ngày tải lên: 29/08/2022, 21:58
fractional order generalized predictive control application for low speed control of gasoline propelled cars
... compare the prin-cipal control quality indicators for the stable realizations (GPC 3, GPC 4, and FGPC) speed error (reference speed— experimental speed), softness of the control action, and acceleration ... interest in using fractional calculus applied to control theory generalizing classical control strategies as the PID controller and developing new ones with the intention of taking advantage of characteristics ... fluctuations in the control action The FGPC controller shows the best behaviour in the steady state without overshoot and presenting the best values in terms of the softness of the control action
Ngày tải lên: 02/11/2022, 10:42
inducible control of mrna transport using reprogrammable rna binding proteins
... ligand-dependent transport of mRNA towards either pole of the microtubular network of cultured cells In addition, implementation of the re-programmable PUF domain allowed the transport of untagged endogenous ... Hoogenraad2* 1 Department of Biochemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA 2Cell Biology, Department of Biology, Faculty of Science, Utrecht ... Netherlands 3Department of Chemical and Biomolecular Engineering, Department of Bioengineering, Department of Chemistry, and Institute for Genomic Biology, University of Illinois at Urbana-Champaign,
Ngày tải lên: 04/12/2022, 14:53