Mathematical Models of Systems
... A mathematical model is a set of equations (usually differential equations) that represents the dynamics of systems. In practice, the complexity of the system requires some assumptions in the determination model. The equations of the mathematical model may be solved using mathematical tools such as ...
... A mathematical model is a set of equations (usually differential equations) that represents the dynamics of systems. In practice, the complexity of the system requires some assumptions in the determination model. The equations of the mathematical model may be solved using mathematical tools such as ...
幻灯片 1
... Scalar control of ac drives produces good steady state performance but poor dynamic response. This manifests itself in the deviation of air gap flux linkages from their set values. This variation occurs in both magnitude and phase. Vector control (or field oriented control) offers more precise contr ...
... Scalar control of ac drives produces good steady state performance but poor dynamic response. This manifests itself in the deviation of air gap flux linkages from their set values. This variation occurs in both magnitude and phase. Vector control (or field oriented control) offers more precise contr ...
as a PDF
... determined from simulation that produce an output voltage with a low THD and a small enough steady-state error. The output voltage, load current, and capacitor current of the inverter are collected as the inputs to the NN. The compensation signal (as marked in the middle of Fig. 3), instead of the w ...
... determined from simulation that produce an output voltage with a low THD and a small enough steady-state error. The output voltage, load current, and capacitor current of the inverter are collected as the inputs to the NN. The compensation signal (as marked in the middle of Fig. 3), instead of the w ...
OC Series - Haefely Hipotronics
... features provided in these power supplies including input and backup breakers, adjustable overload relay (10-110% of rated current), fast overload sensor, zero-start interlock plus provision for external safety interlock, current-limiting resistor in output circuit, output shorting solenoid (and/or ...
... features provided in these power supplies including input and backup breakers, adjustable overload relay (10-110% of rated current), fast overload sensor, zero-start interlock plus provision for external safety interlock, current-limiting resistor in output circuit, output shorting solenoid (and/or ...
File
... 0.2 Ω and 320 Ω respectively. The motor torque constant is 0.5 V.S/A-rad. Field converter has zero degree firing angle delay. Armature and field currents have negligible ripple. For rated load torque of 60 N-rn at 2000 rpm, calculate the rated armature current. (8) 6. A chopper used for ON and OFF c ...
... 0.2 Ω and 320 Ω respectively. The motor torque constant is 0.5 V.S/A-rad. Field converter has zero degree firing angle delay. Armature and field currents have negligible ripple. For rated load torque of 60 N-rn at 2000 rpm, calculate the rated armature current. (8) 6. A chopper used for ON and OFF c ...
1 Difference Equations
... Block diagrams are graphical representations of LTI systems. In 6.01, we consider block diagrams made from three basic pieces. 1. Gain. The multiplication of a signal x[n] with a constant gain K is produced at the output of a gain block, Kx[n]. 2. Delay. A signal is delayed by one time unit before b ...
... Block diagrams are graphical representations of LTI systems. In 6.01, we consider block diagrams made from three basic pieces. 1. Gain. The multiplication of a signal x[n] with a constant gain K is produced at the output of a gain block, Kx[n]. 2. Delay. A signal is delayed by one time unit before b ...
Decoupling control of the active and reactive power for a three
... system, without sensors and controllers, is shown in Fig. 1. A three-phase diode rectifier bridge is used to convert high frequency AC to DC. On the DC side, split DC link capacitors with neutral point are used for smoothing and short-term energy storage. The DC-AC inverter system consists of a thre ...
... system, without sensors and controllers, is shown in Fig. 1. A three-phase diode rectifier bridge is used to convert high frequency AC to DC. On the DC side, split DC link capacitors with neutral point are used for smoothing and short-term energy storage. The DC-AC inverter system consists of a thre ...
XQ5200 Solar Taurus 60, T7300S
... control review to ensure compliance with required specifications. Factory Radiography Inspection. Radiographic inspection was performed in accordance with ASME Section V. Five (5) percent of each welder's work (circumferential butt welds only) is inspected by radiographic examination in accordance w ...
... control review to ensure compliance with required specifications. Factory Radiography Inspection. Radiographic inspection was performed in accordance with ASME Section V. Five (5) percent of each welder's work (circumferential butt welds only) is inspected by radiographic examination in accordance w ...
Proportional Actuator from On Off Solenoid Valve
... positioning systems, machine tools drives, etc. Also it has numerous advantages over other mechanical or electrical systems. At present, classical controllers like PI controllers are being used for development of proportional solenoid actuator. These controllers are easy to design and implement. How ...
... positioning systems, machine tools drives, etc. Also it has numerous advantages over other mechanical or electrical systems. At present, classical controllers like PI controllers are being used for development of proportional solenoid actuator. These controllers are easy to design and implement. How ...
www.ijecs.in International Journal Of Engineering And Computer Science ISSN:2319-7242
... This Project is a very good example of embedded system as all its operations are controlled by intelligent software inside the microcontroller. The aim of this project is to control i.e. to ON/OFF control of different motors, the electrical or electronic appliances connected to this system from anyw ...
... This Project is a very good example of embedded system as all its operations are controlled by intelligent software inside the microcontroller. The aim of this project is to control i.e. to ON/OFF control of different motors, the electrical or electronic appliances connected to this system from anyw ...
Response-Based, Feedforward Wide-Area Control
... criterion. This means reliable and robust control actions will be required for many single contingencies. These control actions are often of the discontinuous, feedforward (disturbance-rejecting) type. (Spinning reserve requirements and requirements for predisturbance load curtailment are already be ...
... criterion. This means reliable and robust control actions will be required for many single contingencies. These control actions are often of the discontinuous, feedforward (disturbance-rejecting) type. (Spinning reserve requirements and requirements for predisturbance load curtailment are already be ...
Folie 1 - Electromate Industrial Sales
... What to control: position, speed, current (torque)? Which commutation type: DC, EC, block, sensorless, How to control: open – closed loop, 1Q – 4Q How to measure the feedback value? What kind of Signals: digital - analog? How much power: current and voltage, voltage drops? ...
... What to control: position, speed, current (torque)? Which commutation type: DC, EC, block, sensorless, How to control: open – closed loop, 1Q – 4Q How to measure the feedback value? What kind of Signals: digital - analog? How much power: current and voltage, voltage drops? ...
HQ-170 Manual
... Tune in an AM signal on any band or any other strong constant carrier of similar nature, such as crystal calibrator. Whenever the receiver is being tuned for normal reception be sure to first rotate the slot frequency control to the extreme clockwise or counter clockwise position. In other words, ne ...
... Tune in an AM signal on any band or any other strong constant carrier of similar nature, such as crystal calibrator. Whenever the receiver is being tuned for normal reception be sure to first rotate the slot frequency control to the extreme clockwise or counter clockwise position. In other words, ne ...
760995XX - Sheet2
... It is critical that all diffusers, lenses, housings, shields, etc. be in place during the entire initialization process. Initialization should be done as soon as possible after fixtures are installed. When the fixture is powered, pushing the reset button will trigger an initialization the next time ...
... It is critical that all diffusers, lenses, housings, shields, etc. be in place during the entire initialization process. Initialization should be done as soon as possible after fixtures are installed. When the fixture is powered, pushing the reset button will trigger an initialization the next time ...
power conditioning in battery chargers using shunt
... reference signal. It consists of several generalized integrators like second order band pass filter with high gain and low band width. Thus it will not affect the dynamics of control loop. The reference signal tracking is performed by the inner current loop. Outer voltage loop is accountable to regu ...
... reference signal. It consists of several generalized integrators like second order band pass filter with high gain and low band width. Thus it will not affect the dynamics of control loop. The reference signal tracking is performed by the inner current loop. Outer voltage loop is accountable to regu ...
Control theory
Control theory is an interdisciplinary branch of engineering and mathematics that deals with the behavior of dynamical systems with inputs, and how their behavior is modified by feedback. The usual objective of control theory is to control a system, often called the plant, so its output follows a desired control signal, called the reference, which may be a fixed or changing value. To do this a controller is designed, which monitors the output and compares it with the reference. The difference between actual and desired output, called the error signal, is applied as feedback to the input of the system, to bring the actual output closer to the reference. Some topics studied in control theory are stability (whether the output will converge to the reference value or oscillate about it), controllability and observability.Extensive use is usually made of a diagrammatic style known as the block diagram. The transfer function, also known as the system function or network function, is a mathematical representation of the relation between the input and output based on the differential equations describing the system.Although a major application of control theory is in control systems engineering, which deals with the design of process control systems for industry, other applications range far beyond this. As the general theory of feedback systems, control theory is useful wherever feedback occurs. A few examples are in physiology, electronics, climate modeling, machine design, ecosystems, navigation, neural networks, predator-prey interaction, gene expression, and production theory.