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Relay-enhanced multi-loop PI controllers
ISA Transactions, 2003In this paper, the development of relay-enhanced multi-loop PI controllers is described for multivariable processes. The control system employs a relay in series with the controller. The relay can ensure a satisfactory level of closed-loop performance and it also yields oscillations for tuning of the PI controller based on an equivalent process model ...
Tan, K.K., Ferdous, R.
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Application of SSOD-PI and PI-SSOD event-based controllers to greenhouse climatic control
ISA Transactions, 2016In this work, an application of the Symmetric Send-On-Delta (SSOD) event-based controllers to the inside air temperature control of the greenhouse production process is presented. The control technique analysis is split into two stages. The first stage is devoted to determine the proper controller parameters and to check the influence of the Send-On ...
Pawlowski A. +5 more
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PI controller based dynamic SAG compensator with PV PANEL: PI controller based DVR
2015 International Conference on Advanced Computing and Communication Systems, 2015Voltage sag is a major deterrent in efficient power transmission systems. It affects the customers who use single phase power supply. To overcome this problem a Dynamic Sag Compensator was designed and employed, the major difference being the implementation of PV system with PI controller, and additional DC source is provided as a backup instead of PV.
S. Deepika, M. Saranya, V. Poorani
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Leader-follower formation control using PI controller
2018 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM), 2018The aim of this paper is to study the leader follower formation control problem of non-holonomic mobile robots. The trajectory tracking control for a single non holonomic mobile robot is extended to the formation control for two non-holonomic robots in which one is the leader and the second is the follower, based on PI control technic.
Medjoubi Halima +2 more
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2008
Thus far we have represented system uncertainty by a disturbance input w allowed to have an arbitrarily fast time variation. Its only constraint was the pointwise condition w ∈ W where W was some known set possibly depending on the state x and control u. We now address a more specific situation in which our system contains some uncertain nonlinearity φ(
Randy A. Freeman, Petar Kokotović
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Thus far we have represented system uncertainty by a disturbance input w allowed to have an arbitrarily fast time variation. Its only constraint was the pointwise condition w ∈ W where W was some known set possibly depending on the state x and control u. We now address a more specific situation in which our system contains some uncertain nonlinearity φ(
Randy A. Freeman, Petar Kokotović
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IFAC Proceedings Volumes, 2006
Abstract A self-tuning algorithm comprising the steps of identification and tuning is proposed. The methodology of process parameters identification is based on the measurement of the locus of a perturbed relay system (LPRS) points from a single or multiple asymmetric relay feedback tests.
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Abstract A self-tuning algorithm comprising the steps of identification and tuning is proposed. The methodology of process parameters identification is based on the measurement of the locus of a perturbed relay system (LPRS) points from a single or multiple asymmetric relay feedback tests.
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Controlling Reversibility in Higher-Order Pi
2011We present in this paper a fine-grained rollback primitive for the higher-order π-calculus (HOπ), that builds on the reversibility apparatus of reversible HOπ [9]. The definition of a proper semantics for such a primitive is a surprisingly delicate matter because of the potential interferences between concurrent rollbacks.
LANESE, IVAN +3 more
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Fuzzy-PID controllers vs. fuzzy-PI controllers
Proceedings of IEEE 5th International Fuzzy Systems, 2002The synthesis of a control system includes both the controller selection and the adjustment of its parameters. In some cases, the type of controller might be more complex or more general, like PID instead PI or PD, to improve the control system performance. In all cases, the tuning problem must be satisfactorily solved. On the other hand, fuzzy control
M. Santos, S. Dormido, J.M. de la Cruz
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Cascade Control Loop of DC-DC Boost Converter Using PI Controller
International Symposium Advanced Electrical and Communication Technologies, 2018DC-DC boost converters which provide dc output voltage are widely used in several applications such as photovoltaic power systems, hybrid vehicle, cellphones… Maintaining a constant output voltage of the DC-DC boost converter under variable input voltage
Ounis Rabiaa +4 more
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Field-Oriented Control of the PMSM with 2-DOF PI Controller Tuned by Using PSO
2018 International Conference on Artificial Intelligence and Data Processing (IDAP), 2018Nowadays, Permanent Magnet Synchronous Motors (PMSM) are used extensively in direct drive systems. In this study, Field-Oriented Control (FOC) of PMSM was performed with 2-DOF PI controller. Field-oriented control of the PMSM was modelled in the MATLAB /
H. Çelik, Tevfik Yigit
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