Results 41 to 50 of about 46,986 (307)
A design approach for feedback-feedforward control systems
, 2009 In this paper, a general design approach is proposed to derive the feedforward control law in feedback-feedforward control systems. This design approach is based on the concept of `control equilibrium point'.
Lei Chen +7 more
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Linear-time-varying feedforward control for position-dependent flexible structures [PDF]
, 2020 High performance motion systems in the semiconductor industry can achieve higher tracking accuracy when the structural dynamics of the system are taken into account. This work proposes an LTV feedforward control scheme which is based on the approximation
Kontaras, Nikolaos +8 more
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Feedforward inhibition and synaptic scaling - two sides of the same coin?
, 2012 Feedforward inhibition and synaptic scaling are important adaptive processes that control the total input a neuron can receive from its afferents. While often studied in isolation, the two have been reported to co-occur in various brain regions.
Cristina Savin +11 more
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Journal of Biological Engineering, 2019 Background Regulation of gene expression is of paramount importance in all living systems. In the past two decades, it has been discovered that certain motifs, such as the feedforward motif, are overrepresented in gene regulatory circuits.
Gregory T. Reeves
doaj +1 more source
Double-command feedforward-feedback control of a nonlinear plant
, 2009 In this paper, a design approach is proposed for feedforward-feedback control systems. As the basis of the proposed design approach, steady state control command is defined as the control command which maintains the desired situation of the system ...
Lei Chen +7 more
core +1 more source
N-removal on wastewater treatment plants : a process control approach [PDF]
, 2011 A multilayered control design approach is proposed here. Starting with the Dissolved Oxygen (DO) control loop in the last aerated tank, the control of the recirculation sludge is added next.
Ramon Vilanova +7 more
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Optimal Placement of Sensors and Actuators for Feedforward Noise and Vibration Control
, 2016 Active systems for noise and vibration control have been under investigation for more than three decades now. It is well-known that the placement of both sensor and actuator is of crucial importance for the achievement of a reasonable noise and ...
Thomas Haase, Haase, Thomas
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Hysteresis feedforward and fuzzy PID feedback compound control of piezoelectric ceramics
Materials Research ExpressAiming at the problem that the hysteresis nonlinearity of piezoelectric ceramics affects the positioning accuracy of micro-nano equipment, a composite control method based on Duhem model is studied.
Qian Lu +5 more
doaj +1 more source
A noise barrier using hybrid ANC system
Nihon Kikai Gakkai ronbunshu, 2014 In this paper, in order to improve the low frequency noise insulation performance of a noise barrier, a new type of hybrid active noise control (ANC) system is proposed. The proposed system is a combination of feedforward and feedback controller.
Xun WANG +3 more
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Reference-Feedforward Power-Synchronization Control [PDF]
IEEE Transactions on Power Electronics, 2020 In this letter, an enhancement of power-synchronization control is proposed, whereby pole–zero cancellation in the closed-loop system is achieved. An effect thereof is that step-response ringing and overshoot are eliminated. For strong grids, the closed-loop bandwidth increases, allowing a shorter step-response rise time.
Harnefors, Lennart +4 more
openaire +2 more sources