control loops
Performance assessment and diagnosis of refinery control loops
... single-input-single-output control loops have shown that reasons for poor performance of basic SISO loops include both poor tuning and equipment problems such as sticking valves (Åström, 1991; Ender, ...
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Worst-Case Analysis of Digital Control Loops with Uncertain Input/Output Timing
... Uncertain input/output timing adversely affects the performance of digital control loops but is virtually unavoidable in complex real-time systems. To still prove safety we are required to prove worst-case ...
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Small signal analysis of naturally sampled single edge PWM control loops
... This paper showed how the behaviour of naturally-sampled single-edge PWM control loops can easily be analysed by using methods from classical control theory. A small-signal model, according to which ...
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Modelling and control of power inverters in microgrids
... The control circuit, although im- plemented digitally, is represented by continuous equivalent transfer ...of control structures for the grid-connected inverters with LCL filters [30, 35, 36, 37, 48, 60, ...
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Transmission protocols for challenging networks: : LTP and LTP T
... It is shown that in the example scenarios, that deploying a multi-hop approach contributes to the control of goodput and end-to-end delay, either by keeping control loops efficient or by[r] ...
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Three Phase Grid Connected Photovoltaic System with Maximum Power Point Tracking
... The control approach in designing the grid connected PV system employs two control loops: an outer control loop that is used to regulate the output power from the PV array to the grid, and an ...
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Vol 2, No 1 (2014)
... new control strategy for three-phase induction motor which includes independent speed &torque control loops and the current regulation thereby overcoming the limitation ...
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A Novel Technique to Support Voltage Control for Statcom under Unbalanced Voltage Sag
... voltage control loop that makes possible the introduction of several voltage support control strategies by simply modifying two voltage set ...Three control strategies are proposed to verify the ...
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Three-phase grid-connected inverters equipped with nonlinear current-limiting control
... and control the injection of real and reactive ...cascaded control structure with inner current and voltage control loops and an outer power controller that includes a droop function to ...
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Analysis of LFC-Dr Model for Single Area Power System
... DR control loop and supplementary control loop the power system is ...the control effort between the two control ...supplementary control loop and remaining 20% by using the DR ...
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Performance Of Three Phase Power Converter With Disturbance Attenuation Using Sliding Mode Control Approach
... the control of three-phase two levelgrid-connected power converters is presented in this ...H∞ control and sliding mode control (SMC), is proposed, which simultaneously achieves output voltage ...
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Grid-Connected Control System for Three-Phase Bidirectional DC/AC Converter to Exploit Photovoltaic Power Generation
... To work as an intermediate element between DCbus and the grid in a PV system, input terminals of bidirectional DC/AC converters are also controlled to balance power at DC side and AC side to hold voltage at DCbus at a ...
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High Voltage Direct Current Back to Back System with Capacitor Commutated Converter
... The control principles for the rectifier and inverter converter depicted in Figure ...new control principle to be used for the operation of the inverter-side converter of the HVDC transmission is based on ...
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Modelling and design of unified power flow controller (UPFC) for power system network using PSCAD/EMTDC and MATLAB
... two control loops, one for the tracking of the real power flow at the receiving bus of the line, and the second performs the same task for the reactive power ...
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The extracellular loops of Smoothened play a regulatory role in control of Hedgehog pathway activation
... To determine whether the activating double mutants induced reporter expression by signaling through Fu and Ci, we expressed wild-type or double mutant constructs in Cl8 cells, and examined lysates for Myc-Smo expression ...
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Automatic Parallelization using Open MP Directives
... “for” loops too by adding collapse clause to the pragma directive of the outermost “for” loop, however, this is beneficial only for certain kinds of nested ...situations, loops perform better without nested ...
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Aeroelastic and trajectory control of high altitude long endurance aircraft
... trajectory control of an High Altitude Long Endurance (HALE) aircraft model in the presence of gust and turbulence ...The control design employs a two-loop PI/LADRC (linear active disturbance rejection ...
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Robust Backstepping Controller for Inner and Outer Loops Control of a Small Scale Helicopter
... nonlinear control of an autonomous scale helicopter subject to disturbances as wind ...layer control structure consisting of an inner-loop and an outer-loop flight controller for an unmanned autonomous ...
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Application of SVC on Large Synchronous Motors Based on LOC Design (RESEARCH NOTE)
... the control loop of the SVC as well as the excitation system of synchronous motor A, then both motors would be hunting and also the busbar voltage on A would remain in a transient ...
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DNA loops after cell lysis resemble chromatin loops in an intact nucleus
... the loops, an acceleration of the DNA exit was observed: the second step became as rapid as the first ...the loops that hampers their exit [7, ...the loops, which are topologically constrained; (ii) ...
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