Control of Electric Power Systems
... at certain key buses. A capacitor delivers reactive power and constitutes thus a “Q-source.” If negative bus power generation also is required banksof shunt reactors must also be installed. By controlling these capacitor and/or reactor banks from an error voltage similarto that of the AVR loop, auto ...
... at certain key buses. A capacitor delivers reactive power and constitutes thus a “Q-source.” If negative bus power generation also is required banksof shunt reactors must also be installed. By controlling these capacitor and/or reactor banks from an error voltage similarto that of the AVR loop, auto ...
iii. integral controller
... Such a coherent area is called a control area in which the frequency is assumed to be the same throughout in static as well as dynamic situation there exists a maximum on the rate of change of power that can be generated by steam plants. The constraints of the nonlinear characteristics of the turbin ...
... Such a coherent area is called a control area in which the frequency is assumed to be the same throughout in static as well as dynamic situation there exists a maximum on the rate of change of power that can be generated by steam plants. The constraints of the nonlinear characteristics of the turbin ...
Stability analysis of low-dropout linear
... requires about 2 V of headroom while the LDO requires less than half a volt. Some vendors offer LDO linear regulators designed with PNP pass transistors. For these regulators, the base current for the pass transistor is directly proportional to the load current through the regulator (IB = IC /β). Th ...
... requires about 2 V of headroom while the LDO requires less than half a volt. Some vendors offer LDO linear regulators designed with PNP pass transistors. For these regulators, the base current for the pass transistor is directly proportional to the load current through the regulator (IB = IC /β). Th ...
IFAC SICICA2003
... requirements according to either the vehicle and/or its movement can be found. global navigation, with ability to determine the object position in absolute or map-referenced terms, and to move to a desired destination point; local navigation, with ability to determine the object position relative ...
... requirements according to either the vehicle and/or its movement can be found. global navigation, with ability to determine the object position in absolute or map-referenced terms, and to move to a desired destination point; local navigation, with ability to determine the object position relative ...
Testing Power Sources for Stability
... signal paths in a circuit, one inverting and one non-inverting, and happen at the transition in frequency where the dominant path changes from inverting to non-inverting or vice-versa. In the case of boost and buck-boost converters, a sudden increase in duty cycle causes a momentary reduction in out ...
... signal paths in a circuit, one inverting and one non-inverting, and happen at the transition in frequency where the dominant path changes from inverting to non-inverting or vice-versa. In the case of boost and buck-boost converters, a sudden increase in duty cycle causes a momentary reduction in out ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331
... Figs.4 shows the closed loop response of start-up of the output voltage and current waveform of Elementary Circuit of N/O Push-Pull SC Luo converter with set point 15V and nominal load 100Ω with PI controller. Fig.5 shows the simulated output voltage and current waveform of Elementary Circuit of N/O ...
... Figs.4 shows the closed loop response of start-up of the output voltage and current waveform of Elementary Circuit of N/O Push-Pull SC Luo converter with set point 15V and nominal load 100Ω with PI controller. Fig.5 shows the simulated output voltage and current waveform of Elementary Circuit of N/O ...
SMART VALVE POSITIONER 4 to 20 mA
... Reliable and Flexible Elimination of many mechanical parts seen in other positioners has a number of advantages. Higher reliability since there are less parts that wear, safer since there are less moving parts, more accurate since there is less deadband from mechanical imprecision. Position sensing ...
... Reliable and Flexible Elimination of many mechanical parts seen in other positioners has a number of advantages. Higher reliability since there are less parts that wear, safer since there are less moving parts, more accurate since there is less deadband from mechanical imprecision. Position sensing ...
International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.2, pp. 1787-1791
... Switched dynamical systems such as dc-dc converters are known to exhibit non-linear behavior such as bifurcation and chaos due to cyclic switching of circuit topology [1]. Chaotic motion occurs frequently in the DC-DC converters, for the performance of the harsh electromagnetic noise, the control sy ...
... Switched dynamical systems such as dc-dc converters are known to exhibit non-linear behavior such as bifurcation and chaos due to cyclic switching of circuit topology [1]. Chaotic motion occurs frequently in the DC-DC converters, for the performance of the harsh electromagnetic noise, the control sy ...
Variable Tap Transformer
... both fixed taps, on which the turns ratio is varied manually at no load, and automatic on-load tap changing (OLTC) or variable tap ratio transformers For example, the high-voltage winding might be equipped with a nominal voltage turns ratio plus four 2.5% fixed tap settings to yield 5% buck or ...
... both fixed taps, on which the turns ratio is varied manually at no load, and automatic on-load tap changing (OLTC) or variable tap ratio transformers For example, the high-voltage winding might be equipped with a nominal voltage turns ratio plus four 2.5% fixed tap settings to yield 5% buck or ...
Analysis of an Economical BLDC Drive System
... position sensorless scheme used in proposed drive system is based on back EMF zero crossing [4]. The back EMFs of different phase is obtained from three terminal voltage differences. This position sensorless control used in proposed drive system increase system reliability as it is not affected by s ...
... position sensorless scheme used in proposed drive system is based on back EMF zero crossing [4]. The back EMFs of different phase is obtained from three terminal voltage differences. This position sensorless control used in proposed drive system increase system reliability as it is not affected by s ...
s - ijsetr.
... have investigated speed sensor FDI for induction motor drives used in electric traction. FDI model-based methods like parity space method or observer based methods have been attractive during recent years. Parity space method has been used for FDI in WECS [13]-[15] and electrical drives, but cannot ...
... have investigated speed sensor FDI for induction motor drives used in electric traction. FDI model-based methods like parity space method or observer based methods have been attractive during recent years. Parity space method has been used for FDI in WECS [13]-[15] and electrical drives, but cannot ...
FF35913917
... of PMSM servo system. In the control of a threephase PMSM system, modulated current is supplied to the A-B-C stator windings to build rotated magnetic field and drive the rotator. The vector control strategy is formulated in the synchronously rotating reference frame. By Clarke–Park transformations ...
... of PMSM servo system. In the control of a threephase PMSM system, modulated current is supplied to the A-B-C stator windings to build rotated magnetic field and drive the rotator. The vector control strategy is formulated in the synchronously rotating reference frame. By Clarke–Park transformations ...
ICM326HM2 - ICM Controls
... compressors, low pressure cutouts and overshoots common to on/off & pressure switch controls ...
... compressors, low pressure cutouts and overshoots common to on/off & pressure switch controls ...
One-Stage Op Amps
... Two decades ago, op amps were designed to satisfy the requirements of many different applications, i.e., the design was to approach an ideal op amp: AV = ∞ , Rin = ∞ , Rout = o In doing so, many other aspects of the performance had to be sacrificed: power, output swing, speed. Old op amp topology: ...
... Two decades ago, op amps were designed to satisfy the requirements of many different applications, i.e., the design was to approach an ideal op amp: AV = ∞ , Rin = ∞ , Rout = o In doing so, many other aspects of the performance had to be sacrificed: power, output swing, speed. Old op amp topology: ...
Speed control of wound rotor induction motors by AC regulator
... power(for constant load-torque),slip increases. Therefore rotor current hence stator current and the copper losses increase (Fig.4).The stator voltage is now reduced using the ac regulator and keeping external resistance in the rotor circuit zero (i.e. k, = 0) till minimum power is drawn by the load ...
... power(for constant load-torque),slip increases. Therefore rotor current hence stator current and the copper losses increase (Fig.4).The stator voltage is now reduced using the ac regulator and keeping external resistance in the rotor circuit zero (i.e. k, = 0) till minimum power is drawn by the load ...
Aalborg Universitet Hierarchical Control for Multiple DC-Microgrids Clusters
... as compared to the ac system. To ensure reliable operation of a low-voltage dc MG as well as its intelligent operation with the other DC MGs, a hierarchical control is proposed in this paper. In this hierarchy, primary control level is used to regulate the common bus voltage inside each MG locally. ...
... as compared to the ac system. To ensure reliable operation of a low-voltage dc MG as well as its intelligent operation with the other DC MGs, a hierarchical control is proposed in this paper. In this hierarchy, primary control level is used to regulate the common bus voltage inside each MG locally. ...
Client Design Review Presentation.
... 5. Circuit Protection Mechanisms 6. Combine the Control System Project Budget Breakdown Project Risks and Problems Project Schedule ...
... 5. Circuit Protection Mechanisms 6. Combine the Control System Project Budget Breakdown Project Risks and Problems Project Schedule ...
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.