control strategy
... generator. The high-speed single-shaft design has a compressor and turbine mounted on the same shaft along with the permanent magnet synchronous generator. The generator generates power at a very high frequency ranging from 1500 to 4000 Hz. The high-frequency voltage is first rectified and then inve ...
... generator. The high-speed single-shaft design has a compressor and turbine mounted on the same shaft along with the permanent magnet synchronous generator. The generator generates power at a very high frequency ranging from 1500 to 4000 Hz. The high-frequency voltage is first rectified and then inve ...
U4201139143
... A current multiplier is used in PFC control scheme with a current control loop within the speed control loop for continuous-conduction-mode operation. By comparing sensed dc link voltage (Vdc) and a voltage (Vdc*) equivalent to the reference speed, voltage error (Vr) is obtained, The control loop be ...
... A current multiplier is used in PFC control scheme with a current control loop within the speed control loop for continuous-conduction-mode operation. By comparing sensed dc link voltage (Vdc) and a voltage (Vdc*) equivalent to the reference speed, voltage error (Vr) is obtained, The control loop be ...
on/off/0-10 volt dimming room controllers
... 240, or 277 volt, 20 amp, or 347 volt, 15 amp, feed and provide Class 2 power to sensors and switches via the DLM local network. Once powered up, Plug n’ Go automatically configures system components for the most energy-efficient operation. The room controllers then dim or switch lighting or motor l ...
... 240, or 277 volt, 20 amp, or 347 volt, 15 amp, feed and provide Class 2 power to sensors and switches via the DLM local network. Once powered up, Plug n’ Go automatically configures system components for the most energy-efficient operation. The room controllers then dim or switch lighting or motor l ...
File - ELECTRICAL ENGINEERING DEPT, DCE
... 1. Define – Bypassed Thyristor mode Bypassed thyristor mode is defined as the thyristor triggered continuously and therefore the valve stays conducting all the time. In this mode, Thyristors are made to conduct with a conduction angle of 180 ̊. Gate pulses are applied as soon as the voltage across t ...
... 1. Define – Bypassed Thyristor mode Bypassed thyristor mode is defined as the thyristor triggered continuously and therefore the valve stays conducting all the time. In this mode, Thyristors are made to conduct with a conduction angle of 180 ̊. Gate pulses are applied as soon as the voltage across t ...
GY3512171221
... dc-link voltage and supports its reactive power. This converter can be operated as rectifier in HVDC applications or as an inverter in direct driven wind turbines. The other converter is operated in PQ or V/f (voltage/frequency) mode controlling the active and reactive powers. A simplified schematic ...
... dc-link voltage and supports its reactive power. This converter can be operated as rectifier in HVDC applications or as an inverter in direct driven wind turbines. The other converter is operated in PQ or V/f (voltage/frequency) mode controlling the active and reactive powers. A simplified schematic ...
Li-Ion battery charger design for laptop computer applications
... I2 control for the purpose of brevity. A block diagram of I2 control for a Buck regulator is shown in Fig. 3. A constantfrequency clock signal initiates the on time of the high side switch. There are two feedback loops. The feedback signal ISENSE is the voltage across the sense resistor and is propo ...
... I2 control for the purpose of brevity. A block diagram of I2 control for a Buck regulator is shown in Fig. 3. A constantfrequency clock signal initiates the on time of the high side switch. There are two feedback loops. The feedback signal ISENSE is the voltage across the sense resistor and is propo ...
CL24579584
... efficient the transmission and distribution system as well the quality of power to the consumer at lower rate is supplied. The wind turbine technology is one of the most emerging renewable technologies. It started in the1980’es with a few tens of kW production power to today with Multi-MW range wind ...
... efficient the transmission and distribution system as well the quality of power to the consumer at lower rate is supplied. The wind turbine technology is one of the most emerging renewable technologies. It started in the1980’es with a few tens of kW production power to today with Multi-MW range wind ...
Aalborg Universitet Selective harmonic control for power converters
... some particular frequencies [3]. For example, in the n-pulse converter systems, nk±1-order (k = 1, 2, 3, …) harmonics dominate the Total Harmonic Distortion (THD). Hence, it is possible to selectively compensate the harmonics according to the characteristic of the harmonic distributions in n-pulse p ...
... some particular frequencies [3]. For example, in the n-pulse converter systems, nk±1-order (k = 1, 2, 3, …) harmonics dominate the Total Harmonic Distortion (THD). Hence, it is possible to selectively compensate the harmonics according to the characteristic of the harmonic distributions in n-pulse p ...
Aalborg Universitet
... technologies such as power electronics converters, distributed generations (DGs), energy storage systems, and telecommunications which can operate connected to the traditional centralized grid (macrogrid) but also could operate autonomously in islanded mode. Control strategies have an important role ...
... technologies such as power electronics converters, distributed generations (DGs), energy storage systems, and telecommunications which can operate connected to the traditional centralized grid (macrogrid) but also could operate autonomously in islanded mode. Control strategies have an important role ...
Aalborg Universitet Modeling, analysis, and design of stationary
... large line power impedances variations [10]. Droop control is a kind of cooperative control that allows parallel connection of VSIs sharing active and reactive power. It can be seen as a primary power control of a synchronous machine. However, the price to pay is that power sharing is obtained throu ...
... large line power impedances variations [10]. Droop control is a kind of cooperative control that allows parallel connection of VSIs sharing active and reactive power. It can be seen as a primary power control of a synchronous machine. However, the price to pay is that power sharing is obtained throu ...
Aalborg Universitet
... large line power impedances variations [10]. Droop control is a kind of cooperative control that allows parallel connection of VSIs sharing active and reactive power. It can be seen as a primary power control of a synchronous machine. However, the price to pay is that power sharing is obtained throu ...
... large line power impedances variations [10]. Droop control is a kind of cooperative control that allows parallel connection of VSIs sharing active and reactive power. It can be seen as a primary power control of a synchronous machine. However, the price to pay is that power sharing is obtained throu ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... new technology called Flexible AC Transmission System (FACTS). This power electronics based technology can be used individually or in coordination with other controllers. Static VAR Compensator (SVC) is a shunt connected FACTS device, used for voltage control and for reactive power compensation. In ...
... new technology called Flexible AC Transmission System (FACTS). This power electronics based technology can be used individually or in coordination with other controllers. Static VAR Compensator (SVC) is a shunt connected FACTS device, used for voltage control and for reactive power compensation. In ...
Speed control of DC motors
... Before we can discuss the speed control of a DC motor, it is important to understand the physical time varying relationships that determine the operating characteristics of a DC motor. Equation (1) below describes the linear relationship between the torque T and the current i a applied to the motor. ...
... Before we can discuss the speed control of a DC motor, it is important to understand the physical time varying relationships that determine the operating characteristics of a DC motor. Equation (1) below describes the linear relationship between the torque T and the current i a applied to the motor. ...
EET420-FinalReport - Department of Applied Engineering
... control unit in an effort to control the AC voltage to the heating element. LabVIEW would read the already designed temperature acquisition unit. This data would then be compared to set points during each phase of the roast. Based on the comparison the pulse width of the TTL signal would correspond ...
... control unit in an effort to control the AC voltage to the heating element. LabVIEW would read the already designed temperature acquisition unit. This data would then be compared to set points during each phase of the roast. Based on the comparison the pulse width of the TTL signal would correspond ...
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.