Topic
Open-loop controller
About: Open-loop controller is a research topic. Over the lifetime, 16148 publications have been published within this topic receiving 224014 citations. The topic is also known as: non-feedback controller & open-loop control law.
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TL;DR: In this paper, the dynamic behavior and control of the low pressure methanol synthesis fixed bed reactor have been investigated for simulation purpose, a heterogeneous one-dimensional model has been developed.
81 citations
Patent•
28 Oct 2000
TL;DR: In this paper, the authors propose a system that couples distributed power generators together as a collective unit for the purposes of selling or purchasing energy from the electrical power grid, including a charge/discharge controller and an adaptive controller.
Abstract: A system that couples distributed power generators together as a collective unit for the purposes of selling or purchasing energy from the electrical power grid The apparatus includes a charge/discharge controller and an adaptive controller The charge/discharge controller transfers energy generated by the plurality of distributed power generators to the power grid The adaptive controller directs when the charge/discharge controller transfers energy generated by at least one of the plurality of distributed power generators to the electrical grid
81 citations
Patent•
07 May 1990TL;DR: In this article, the primary controller performs predefined control functions of the process control system which includes updating the data base associated with the primary control as a result of performing the pre-defined control functions.
Abstract: A process control system includes a process controller which has a first and second controller, one of the controllers being designated as a primary controller and the other controller being designated as a secondary controller. Each controller has a respective data base. The primary controller performs predefined control functions of the process control system which includes updating the data base associated with the primary controller as a result of performing the predefined control functions. A method for updating the data base associated with the secondary controller comprises the steps of performing the control functions. Results therefrom are utilized to update the data base associated with the primary controller. Simultaneously with updating the data base, predetermined information being stored in the primary data base is collected. At the completion of performing the control functions, the predetermined information which was collected is transferred to the secondary controller.
81 citations
TL;DR: In this paper, the authors focused on the benchmark problem application regarding the vibration control of tall buildings under along wind excitation, where the adopted control scheme consists of an Active Tuned Mass Damper (ATMD) where the control action is achieved by a Fuzzy Logic Controller (FLC).
81 citations
01 May 1998
TL;DR: In this paper, a fuzzy logic approach is applied to coordinate three control inputs: in-phase voltage control, quadrature voltage control; and shunt compensation, of a unified power flow controller to improve the transient stability of a power system.
Abstract: A fuzzy logic approach is applied to coordinate three control inputs: in-phase voltage control; quadrature voltage control; and shunt compensation, of a unified power flow controller to improve the transient stability of a power system. The fuzzy rules for the controller are created based on a bang-bang control strategy whose objectives are minimising the first swing, damping the oscillations at an optimum rate and maximising the transient stability margin. The proposed controller also incorporates a technique of reducing the chattering of generator output which naturally results from the application of bang-bang control. Simulation results show that the fuzzy logic based controller provides satisfactory performance, meeting the design objectives. The results also show the robustness of the controller.
81 citations