TS-21 "Hellfire Modulator" owner`s manual
... as square waves or sawtooth waves. The output pulses tend to be short and rich in harmonics--but also might have noise or bursts of oscillation riding on them. There are some settings which will cause the PWM to burst into oscillation, whether a signal is going into it or not. It can produce somethi ...
... as square waves or sawtooth waves. The output pulses tend to be short and rich in harmonics--but also might have noise or bursts of oscillation riding on them. There are some settings which will cause the PWM to burst into oscillation, whether a signal is going into it or not. It can produce somethi ...
EEE 116-1418
... approaches, this control strategy along with the STATCOM system has the advantages of fastspeed response to load change, accurate unbalanced load compensation, no auxiliary circuit for dc links, less on-line calculation, specific unequal dc voltage regulation, as well as certain but unequal switchin ...
... approaches, this control strategy along with the STATCOM system has the advantages of fastspeed response to load change, accurate unbalanced load compensation, no auxiliary circuit for dc links, less on-line calculation, specific unequal dc voltage regulation, as well as certain but unequal switchin ...
Chap2
... (a) A popular circuit for an instrumentation amplifier. (b) Analysis of the circuit in (a) assuming ideal op-amps. (c) To make the gain variable, R1 is implemented as the series combination of a fixed resister R1f and a variable resistor R1v. Resistor R1f ensures that the maximum available gain is ...
... (a) A popular circuit for an instrumentation amplifier. (b) Analysis of the circuit in (a) assuming ideal op-amps. (c) To make the gain variable, R1 is implemented as the series combination of a fixed resister R1f and a variable resistor R1v. Resistor R1f ensures that the maximum available gain is ...
Document
... 3.2.5 Output Interface Unit The output module of a PLC is the module, which output devices are connected to. Output modules conduct the signals of the central control unit to final control elements, which are actuated according to the task. In the main, the function of an output – as seen from the a ...
... 3.2.5 Output Interface Unit The output module of a PLC is the module, which output devices are connected to. Output modules conduct the signals of the central control unit to final control elements, which are actuated according to the task. In the main, the function of an output – as seen from the a ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... In a common used model, for induction generator converting power from the wind to serve the electrical grid in which stator of the wound rotor. Induction machine is connected to the low voltage balanced 3phase grid and the rotor is fed pulse width modulation converters(PWM)[2], converters back-to-ba ...
... In a common used model, for induction generator converting power from the wind to serve the electrical grid in which stator of the wound rotor. Induction machine is connected to the low voltage balanced 3phase grid and the rotor is fed pulse width modulation converters(PWM)[2], converters back-to-ba ...
MODELLING GRID-CONNECTED VOLTAGE SOURCE INVERTER
... the power quality of weak grid environments [1-3], there remains a reluctance to incorporate power electronic plant into distribution systems. This is in part due to unresolved issues relating to their interaction with the existing distribution network [4]. This paper presents the first stage of a r ...
... the power quality of weak grid environments [1-3], there remains a reluctance to incorporate power electronic plant into distribution systems. This is in part due to unresolved issues relating to their interaction with the existing distribution network [4]. This paper presents the first stage of a r ...
display
... tuning potentiometers. The tuning potentiometers allow for software parameters to be tuned externally by the user. The IR sensors are mounted on platforms attached to the operator’s feet. A cable with a Binder 709 series connector connects to a mating panel-mounted jack. The Binder 709 series conne ...
... tuning potentiometers. The tuning potentiometers allow for software parameters to be tuned externally by the user. The IR sensors are mounted on platforms attached to the operator’s feet. A cable with a Binder 709 series connector connects to a mating panel-mounted jack. The Binder 709 series conne ...
Document
... Closed Loop Feedback Closed Loop Feedback uses true door positioning (TDP) eliminating the need for limit switches and sensors. ...
... Closed Loop Feedback Closed Loop Feedback uses true door positioning (TDP) eliminating the need for limit switches and sensors. ...
ezDALI Dimming Controls
... lighting scenes (or presets). Up to four scenes can be stored and recalled with the push of a directory button. The maximum level for each lighting group may be set and occupancy sensors integrated to automatically turn off lighting when the space is unoccupied. Both of these functions save energy a ...
... lighting scenes (or presets). Up to four scenes can be stored and recalled with the push of a directory button. The maximum level for each lighting group may be set and occupancy sensors integrated to automatically turn off lighting when the space is unoccupied. Both of these functions save energy a ...
GENERAL@ ELECTRIC
... supplementary control panel signal into a continuously acting voltage regulator equipment which is already installed on steam driven or hydro driven generators. The control may also be furnished with new excitation controls. This control can be supplied to operate with General Electric generator exc ...
... supplementary control panel signal into a continuously acting voltage regulator equipment which is already installed on steam driven or hydro driven generators. The control may also be furnished with new excitation controls. This control can be supplied to operate with General Electric generator exc ...
Mathematical Research and Modeling for the Army
... interactive and collaborative with other sciences, engineering, and development activities to ensure that Army systems will be built quickly and will be built right the first time. Continuous technological collaboration is becoming a much more important mode of work than just being a specialist who ...
... interactive and collaborative with other sciences, engineering, and development activities to ensure that Army systems will be built quickly and will be built right the first time. Continuous technological collaboration is becoming a much more important mode of work than just being a specialist who ...
PDF
... grid voltage and the fundamental component of the STATCOM VSC terminal voltage are assumed to be inphase and the modulation index is kept within unity. PI-controllers for the active and reactive currents as well as the DC-link voltage of the STATCOM have been designed. The model, with PI controllers ...
... grid voltage and the fundamental component of the STATCOM VSC terminal voltage are assumed to be inphase and the modulation index is kept within unity. PI-controllers for the active and reactive currents as well as the DC-link voltage of the STATCOM have been designed. The model, with PI controllers ...
Berkeley Nucleonics Corporation | Precision instrumentation since
... Designed by experimenters for experiment control. Warmup, interlock, arm, sync, digital delay, trigger ...
... Designed by experimenters for experiment control. Warmup, interlock, arm, sync, digital delay, trigger ...
PDF
... generates a serious demand for high efficient PM motor drives, and this was the beginning of interest in BLDC motors. BLDC motors, also called Permanent Magnet DC Synchronous motors, are one of the motor type that have more rapidly gained popularity, mainly because of their better characteristics an ...
... generates a serious demand for high efficient PM motor drives, and this was the beginning of interest in BLDC motors. BLDC motors, also called Permanent Magnet DC Synchronous motors, are one of the motor type that have more rapidly gained popularity, mainly because of their better characteristics an ...
الشريحة 1
... after the dc motor start rotation the feedback tachometer generate dc voltage from (0 to 7.5) volt and when the dc motor rotate in the other direction the tachometer generate dc voltage from (0 to -7.5) then the volt but if negative voltage appeared on the leg of the pic so to overcome this problem ...
... after the dc motor start rotation the feedback tachometer generate dc voltage from (0 to 7.5) volt and when the dc motor rotate in the other direction the tachometer generate dc voltage from (0 to -7.5) then the volt but if negative voltage appeared on the leg of the pic so to overcome this problem ...
S280-16-3 (Discontinued Product)
... 8. Remote Non-Reclose Status: a. Remote non-reclose status is verified by checking for an open circuit between pins J and K at receptacle P2 when the unit is in the non-reclose mode, and a closed contact between pins J and K when the unit is in the normal reclose mode. 9. Remote Analog Current Monit ...
... 8. Remote Non-Reclose Status: a. Remote non-reclose status is verified by checking for an open circuit between pins J and K at receptacle P2 when the unit is in the non-reclose mode, and a closed contact between pins J and K when the unit is in the normal reclose mode. 9. Remote Analog Current Monit ...
Appendix A: Experimental Apparatus
... (or ‘compact-rio’), the extra rotor resistance, current and voltage sensors and several contactors along with various circuit breakers and fuses to protect the machines from overload conditions. The variable autotransformer is the device on the middle shelf of the control unit. It can be thought of ...
... (or ‘compact-rio’), the extra rotor resistance, current and voltage sensors and several contactors along with various circuit breakers and fuses to protect the machines from overload conditions. The variable autotransformer is the device on the middle shelf of the control unit. It can be thought of ...
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.