robust nonlinear control for boost converter

... to control the duty cycle of the buck -boost converter to implement maximum power tracking in wind turbine application. Therefore, we have proposed an optimal control method, where the information ... speed, the control of the buck- boost converter perturbs periodically the operating point of the wind turbine. By acquiring the output voltage and current of PMSG, the control used this information ... proposed MPPT control method. Fig.7: Wind turbine output power without MPPT control method for low wind speed. Fig.8: Wind turbine output power with MPPT control method for low wind...

Ngày tải lên: 03/01/2014, 19:15

... voltage, thus demanding a buck -boost operation of converters. Many traditional full-bridge buck converters, two-stage converters and single-stage buck -boost converters either have complex structure ... of the 120V grid side is 2% for a switching frequency of 9.6 kHz. The simulation waveforms for the buck -boost inverter subject to a variable dc voltage sources, controlled by a closed-loop ... mode. Fig. 3. Buck -boost inverter operation in the continuous current mode. Fig. 4. Simulated waveform of the buck -boost inverter under the open loop feedforward compensation control. 229 Based...

Ngày tải lên: 03/01/2014, 19:16

Ngày tải lên: 13/05/2014, 00:55

Ngày tải lên: 21/06/2014, 20:20

Ngày tải lên: 22/06/2014, 11:20

Ngày tải lên: 01/10/2013, 13:49

... mode of control that meets application requirements is the best mode to use, both for economy and for best results. Using a control Table 3. Control Applications and Recommended Control Modes. CONTROL ... 13 Filtration 14 Control System Characteristics 15 Controlled Variables 15 Control Loop 15 Control Methods 16 General 16 Analog And Digital Control 16 Control Modes 17 Two-Position Control 17 General ... 17 Basic Two-Position Control 17 Timed Two-Position Control 18 Step Control 19 Floating Control 20 Proportional Control 21 General 21 Compensation Control 22 Proportional-Integral (Pi) Control 23 Proportional-Integral-Derivative...

Ngày tải lên: 25/10/2013, 13:15

... cost, and reliable actuators for large valves and dampers Simplest modulating control Most common for simple on-off control Integral sensor/ controller Simple sequence of control Broad environmental limits Complex modulating actuators, especially ... (change) sensor inputs and controller outputs from one analog form to another, more usable, analog form. A voltage-to-pneumatic transducer, for example, converts a controller variable voltage ... OUTPUT TO CONTROLLER BELLOWS LIQUID FILL CAPILLARY CONTROLLED MEDIUM (E.G., WATER) BULB C2083 ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 35 CHARACTERISTICS AND ATTRIBUTES OF CONTROL...

Ngày tải lên: 25/10/2013, 13:15

... proportional and PI control is that proportional control is limited to a single final control element position for each value of the controlled variable. PI control changes the final control element ... MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 36 ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 18 Figure 22 shows a sample control loop for basic two-position control: a thermostat ... WATER SUPPLY TEMPERATURE CONTROLLED MEDIUM CONTROLLED VARIABLE MEASURED VARIABLE MEASURED VARIABLE SETPOINT ALGORITHM IN CONTROLLER FINAL CONTROL ELEMENT CONTROL AGENT MANIPULATED VARIABLE M10510 Proportional control: ...

Ngày tải lên: 12/12/2013, 04:15

Ngày tải lên: 12/12/2013, 20:28

Ngày tải lên: 01/01/2014, 17:47

... automatic control. ENGINEERING MANUAL OF AUTOMATIC CONTROL CONTROL FUNDAMENTALS 17 Fig. 20. Comparison of Analog and Digital Control Signals. CONTROL MODES Control systems use different control ... microprocessor-based controllers. Adaptive control algorithms enable a controller to adjust its response for optimum control under all load conditions. A controller that has been tuned to control accurately ... Electric Control Circuits Classified 99 Series 40 Control Circuits 100 Series 80 Control Circuits 102 Series 60 Two-Position Control Circuits 103 Series 60 Floating Control Circuits 106 Series 90 Control...

Ngày tải lên: 24/01/2014, 23:20

... because NAC encompasses so much more. 1.1.3. Control freak Control is a vital part of network access control. Controlling admission to a network and controlling access while a user is on the network ... deploying NAC and defining access control policies, the company usually decides how leniently or stringently they want to enforce their access control policies for compliant or non-compliant ... be controlled. Like with any business operation, technological and market drivers influence the need for network access control or limitations. Also, the number of network users, the information...

Ngày tải lên: 07/03/2014, 04:20

Ngày tải lên: 14/03/2014, 09:20

... Chapter 6. 3.2.2 Chained Form Before developing the controller for the model given in (3.10), the system must be converted into chained form. The (2,n) single-chain form has the following structure ... computer acting as the controller determines how to turn the steering wheels to follow the correct path. Fig. 1.1 shows the feedback control system for lateral control. The lateral controller’s purpose ... systems. Among the classes of controllers that have been implemented are: fuzzy controllers, neural networks, and adaptive controllers. In addition, specific controllers are developed for indi- vidual applications....

Ngày tải lên: 14/03/2014, 14:20

Ngày tải lên: 16/03/2014, 12:20

... primarily for performance evaluation, as their goal was to derive the exact form of the waiting time distribution for end-items. They do however present (but do not test) an iterative procedure for ... lead-times for the components are independent normally distributed random variables. They provide two formulations for this situation and note that managers may not be able to grasp such formulations. In ... demand for the frequently used options (with historical frequencies of use exceeding 20%) to plan for λ H (m-L) testers. For the infrequently used options we planned either 1 or 2 units for each option....

Ngày tải lên: 17/03/2014, 14:20

... AND ACTUATOR NETWORKS Event-Based Motion Control for Mobile- Sensor Networks I n many sensor networks, considerably more units are available than necessary for simple coverage of the space. Augmenting sensor ... each sen- sor moves according to a simple known control function. Each sensor can there- fore predict the motion of other sensors and use this information to maintain adequate coverage. Prediction ... techniques In this class of motion -control algo- rithms, the sensors don’t maintain any event history. This approach resembles the potential–field approaches in for- mation control and coverage work, 1 which...

Ngày tải lên: 30/03/2014, 16:20

... Advanced Control Systems 8.1 Ratio Control 8.2 Cascade Control 8.3 Computed Variable Control 8.4 Override Control 8.4.1 Basic System 8.4.2 Reset Windup 8.5 Nonlinear and Adaptive Control 8.5.1 Nonlinear ... Controllers 222 7.1.5 Computing and Logic Devices 226 7.2 Performance of Feedback Controllers 226 7.2.1 Specifications for Closedloop Response 226 7.2.2 Load Performance 227 7.3 Controller Tuning 231 7.3.1 Rules of ... (INA) 16.3.3 Decoupling 16.4 Robustness 16.4.1 Trade-off Between Performance and Robustness 16.4.2 Doyle-Stein Criterion 16.4.3 Skogestad-Morari Method Problems 17 Design of Controllers For Multivariable...

Ngày tải lên: 01/04/2014, 11:12

... inter- mediate cases for refrigeration and further processing. In an effort to control the deveining process, the plant manager attempted to use ap chart for attributes, but ... operate and control valves, burners, feeders, pumps, mixers and other equipment. Additionally, quality control can have the ability to use real-time data for instantaneous control, to ... Interrelationships Q2 Research and Pilot Plant Quality Control Q3 Material Quality Control Q4 Production Quality Control Q5 Product Performance Q6 Corrective Action Q7 Microbiological Procedures Q8 ...

Ngày tải lên: 02/04/2014, 15:06