single phase ac motor speed control circuit using microcontroller

... wire This creates an inductive reactance causing the current to lag Split Phase Motor  A split phase motor has windings:   Run winding Start winding Split Phase Motor    The two windings cause ... machines Capacitor Start Motor    Similar in effect to the split phase motor Capacitor causes current in start winding to lead voltage Start and Run windings are approximately 90° out of phase ... 90° out of phase Capacitor Start Motor   High torque Used in compressors, refrigerators and when high torque starting is needed Capacitor Start – Capacitor Run Motor   capacitors are connected...

Ngày tải lên: 27/06/2014, 19:20

... conventional deadbeat controller for minimizing the tracking error of the output voltage in single- phase DC -AC inverters Repetitive control is a control scheme applied to plants that must track a periodic ... Conventional control methods such as PID control, single- loop voltage feedback control, and cascaded control have been applied for inverters in the past However, none of these vi are able to achieve ... supply: AC- DC rectifier, AC- AC converter, DC -AC inverter and DC-DC converter An DC -AC power converter transforms a DC input voltage to a desired magnitude and frequency AC output voltage The AC power...

Ngày tải lên: 03/10/2015, 21:56

... designed to control a brush-less DC motor However, by constructing a feedback loop that can detect the outputs of an induction motor, we can use this motor controller to control an induction machine ... applied signal to phase A of the Induction motor and the drawn current at phase A FO control is also referred to as vector control because it controls both the magnitude and phase of the voltage ... a control scheme for a three -phase induction motor drive This induction motor drive is proposed to be incorporated into a “hybrid car” or an “electric car” 1.2 Available resources • Motor controller...

Ngày tải lên: 27/10/2013, 23:15

... Jörg-Andreas Dittrich Vector Control of Three -Phase AC Machines Nguyen Phung Quang · Jörg-Andreas Dittrich Vector Control of Three -Phase AC Machines System Development in the Practice With 230 Figures ... vector orientated control structures for systems using three -phase AC machines From the principles of electrical engineering it is known that the 3 -phase quantities of the 3 -phase AC machines can be ... of actual-value measurement and vector orientation Acquisition of the current Acquisition of the speed Possibilities for sensor-less acquisition of the speed Example for the speed sensor-less control...

Ngày tải lên: 18/12/2013, 09:10

... speed control method 38 4.3.2 Open Loop V/f speed control method using PI controller 42 4.3.3 Closed Loop V/f speed control method using PI controller 44 4.4 Vector Control ... 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 ... Simulation and Speed Control of Induction Motor Drives 2012 Figure 3.7: Torque -Speed Characteristics for machine parameters as in Fig 3.2 9|Page Simulation and Speed Control of Induction Motor Drives...

Ngày tải lên: 18/12/2013, 22:06

... versus tip -speed ratio Fig.3 : Connection diode rectifier circuits to the generator Unlike constant -speed control, a variable -speed control can adjust the speed of the turbine as the wind speed changes, ... simple linear circuit can represent each of the two states where the switches in the circuit are replaced by their equivalent circuit during each state The circuit diagram for each of the two ... control method for low wind speed Start Fig and 10 give the wind turbine output power without and with MPPT control method for high wind speed The impact of the proposed MPPT control method used to...

Ngày tải lên: 03/01/2014, 19:15

... power amplifier Motor speed is measured using an analog tachometer Figure Physical System Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System Kevin Craig The DC motor/ tachometer system ... Furthermore, the control of AC actuators was a difficult task at that time Today, AC motors are also widely used as servo-motors, employing modern methods of phasevoltage control and frequency control ... current) The motor used in this system is the Honeywell 22VM51-020-5 DC Motor with Tachometer The factory specifications are shown in Table Mechatronics DC Motor / Tachometer Closed-Loop Speed Control...

Ngày tải lên: 25/01/2014, 13:20

... the DC motor system, and that back EMF Kb ωr makes a negative feedback loop A DC motor controller normally consists of two loops: current control loop and speed control loop Generally both controllers ... of Practical Current Loop Nowadays, most control algorithms are implemented using microcontrollers, and thereby associated delay elements are introduced in the control loop: 14 AC Motor Control ... (IP) Controller The integral-proportional controller (IP controller) is a variation of PI controller The IP controller has the proportional part in the feedback path, as shown in 16 AC Motor Control...

Ngày tải lên: 24/07/2015, 13:53

... CONFIGURATIONS (Tùy chọn) PACKAGE (KHỐI) Package vùng lưu trữ liệu để dùng chung cho entity Mô tả liệu bên package cho phép tham khảo entity khác, liệu dùng chung Một package bao gồm phần: phần ... Số Phần VHDL VHDL Very High speed integrated circuit Description Language I CẤU TRÚC CỦA MỘT THIẾT KẾ DÙNG NGÔN NGỮ VHDL Ghi - PACKAGE (Tùy chọn) library (Thư ... package bao gồm phần: phần mô tả định nghĩa giao diện cho package, phần thân ấn định hoạt động cụ thể package Cú pháp khai báo khối xác định là: PACKAGE example_arithmetic IS khai báo khối chứa khai...

Ngày tải lên: 12/09/2013, 22:38

... 6.2 Microcontroller based control for nylon rubber stamp making machine 110 Embedded Control Applications Using AT89S52 Program 6.2 Microcontroller based control for nylon rubber stamp making machine ... application a motor control is illustrated by using microcontroller The setpoint is simulated using the potentiometer The block schematic is shown in Fig 6.11 Program 6.8 Microcontroller based servo controller ... pin of the controller sbit R1 = P3∧0; //Key board signals sbit R2 = P3∧1; sbit R3 = P3∧2; Fig 6.1 Circuit diagram for night light controller using 89S52 microcontroller 6.1 Night Lamp Controller...

Ngày tải lên: 03/10/2013, 01:20

Ngày tải lên: 17/12/2013, 14:15

...      STT_WORD:Địa Status Word ACTVAL_WORD: Địa Actual Value Word ACT_ROTATION: Chiều quay thực thi CTR_WORD: Địa Control Word SETP_WORD: Địa Setpoint Word Trước hết, bạn...

Ngày tải lên: 28/12/2013, 22:07

... CONTENTS Preface (vii) Acknowledgement Introduction to Control Systems (ix) 1.1 Introduction 1.2 Control Systems 1 1.2.1 Examples of Control Systems 1.3 Control System Configurations 1.4 Control ... attitude control system of a typical space vehicle (k) Automatic position -control system of a high speed automated train system (l) Human heart using a pacemaker (m) An elevator-position control ... plant under the control of the control system Controller The elements of an open-loop control system can usually be divided into two parts: controller and the controlled process The controller drives...

Ngày tải lên: 01/01/2014, 18:43

... Lorenz, Control topology options for single- phase UPS inverters,” IEEE Trans Ind Appl., vol 33, no 2, pp 493–501, Mar./Apr 1997 [16] P Mattavelli, “An improved deadbeat control for UPS using disturbance ... Electron., Control Instrum., Sep 5–9, 1994, vol 1, pp 485–490 [25] A Moriyama, I Ando, and I Takahashi, “Sinusoidal voltage control of a single phase uninterruptible power supply by a high gain PI circuit, ” ... the capacitor voltage of the Z-source inverter drops significantly as well; thus, the voltage difference between the reference u∗ and the actual C capacitor voltage uC is sent to the PI controller...

Ngày tải lên: 03/01/2014, 19:12

... the factor k Actually, such a factor allows the charge/discharge speed to be controlled A fast dynamic can be generally obtained choosing kS1 in order to deliver the energy needed to the capacitor ... current controller such as a hysteresis controller that offers good dynamic performance suitable for the high dynamic control of 989 Fig Schematic diagram of proposed CC-PWM AC/ DC actual power factor ... This control technique works quite well if the input currents are actually sinusoidal and the power factor is close to unity, i.e the input current tracks the reference one In effect, the controller...

Ngày tải lên: 03/01/2014, 19:44

... Speed Control « SPC Gas Springs, cushioned SPC Gas Spring 2486.12 ! CT P R S TM 2486.12 ODU FIBRO SPC Gas Springs Speed ControlTM« are designed to reduce or ... bounce back which is often caused by the increased return travel speed in high speed presses (link drive presses) SPC Gas Springs feature an integral return travel delay which reduces the speed ... with SPC SPC reduces speed to 0.4 m/s stroke in mm press speed 1.0 m/s Filling connection 1) for 2486.12.05000 2) M10 for 2486.12.03000 and 2486.12.05000 time in s Speed Control « SPC Gas Springs...

Ngày tải lên: 22/01/2014, 02:20

... speed This is referred to as a capacitor-start capacitor-run machine Although we may have made it appear that the split -phase machine is the type of two -phase machine that is used in single- phase ... single- phase induction motor Figure 9.8-5 Free-acceleration characteristics of a capacitor-start single- phase induction motor 368 UNBALANCED OPERATION AND SINGLE- PHASE INDUCTION MACHINES Figure 9.8-6 ... capacitor, which are not considered in this analysis The SINGLE- PHASE INDUCTION MACHINES 367 Figure 9.8-4 Average steady-state torque versus speed characteristics of a capacitor-start single- phase...

Ngày tải lên: 16/02/2014, 18:48

... back emf waveforms Machines with sinusoidal back emfs may be controlled so as to achieve nearly constant torque; however, machines with a nonsinusoidal back emf may be less expensive to manufacture ... ⎪2 ⎪ π E single- phase rectifier ⎩ ⎧3 ⎪ π ω eu Lc ⎪ rr = ⎨ ⎪ ω eu Lc ⎪ ⎩π ⎧2 Lc lr = ⎨ ⎩ Lc (14.4-2) three -phase rectifier (14.4-3) single- phase rectifier e three -phase rectifier single- phase rectifier ... (14.7-1) 564 PERMANENT-MAGNET AC MOTOR DRIVES - Σ d K 1 + τs Gain * Compensation PMAC Motor Drive Plant Figure 14.7-1 Speed control system 80 40 Gain (dB) -40 -80 -120 -40 -80 Phase (Dg) -120 -160 -200...

Ngày tải lên: 16/02/2014, 18:54