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Control system
Lecture Control system design: Feedback control system characteristics - Nguyễn Công PhươngLecture Control system design: Feedback control system characteristics presents the following content: Error signal analysis, sensitivity of control systems to parameter variations, disturbance signals in a feedback control system, control of the transient response, steady – state error, the cost of feedback, control system characteristics using control design software.
Lecture Control system design: Introduction - Nguyễn Công PhươngLecture Control system design include all of the following content: Mathematical models of systems, state variable models, feedback control system characteristics, the performance of feedback control systems, the stability of linear feedback systems, the root locus method,...
14 trang
66 lượt xem
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Lecture Control system design: Mathematical models of systems - Nguyễn Công PhươngLecture Control system design: Mathematical models of systems presents the following content: Differential equations of physical systems, linear approximations of physical systems, the laplace transform, the transfer function of linear systems, block diagram models, signal – flow graph models, the simulation of systems using control design software.
62 trang
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Lecture Control system design: Stability in the frequency domain - Nguyễn Công PhươngThis chapter include all of the following content: Mapping contours in the s – plane, the nyquist criterio, relative stability and the nyquist criterion, time – domain performance criteria in the frequency domain, system bandwidth, the stability of control systems with time delays, pid controllers in the frequency domain, stability in the frequency domain using control design software.
46 trang
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Lecture Control system design: The performance of feedback control systems - Nguyễn Công PhươngThis chapter presents the following content: Test input signals, performance of second – order systems, effects of a third pole & a zero on the second – order system response, the s – plane root location & the transient response, the steady – state error of feedback control systems, performance indices, the simplification of linear systems, system performance using control design software.
56 trang
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Lecture Control system design: Frequency response methods - Nguyễn Công PhươngLecture Control system design: Frequency response methods presents the following content: Frequency response plots, performance specifications in the frequency domain, frequency response methods using control system software.
52 trang
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Lecture Control system design: The stability of linear feedback systems - Nguyễn Công PhươngLecture Control system design: The stability of linear feedback systems include all of the following content: The concept of stability, the Routh – Hurwitz stability criterion, the stability of state variable systems, system stability using control design software.
24 trang
54 lượt xem
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Lecture Control system design: State variable models - Nguyễn Công PhươngThis chapter presents the following content: The state variables of a dynamic system, the state differential equation, signal – flow graph & block diagram models, alternative signal – flow graph & block diagram models, the transfer function from the state equation,...
50 trang
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Lecture Control system design: The Root Locus method - Nguyễn Công PhươngIn this chapter the following content will be discussed: The root locus concept, the root locus procedure, parameter design by the root locus method, sensitivity and the root locus, pid controllers, negative gain root locus, the root locus using control design software.
61 trang
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Summary of the PhD thesis in Technique of control and Automation: Neural network in the wheelchair control system for severe disabilied people using eeg signal and cameraThe research works were published at international paper mainly focused on diagnosing epilepsy sleep disorders, coma and brain death, stress, depresssion pathological… in automation field as spelling, eye blink, head movement, mental arithmetic… this were performed by offline, no mainly focus on resolving in realtime and in control automation field.
33 trang
50 lượt xem
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Vibration suppression control for 5-DOF varying-cable-length tower cranesThis article presents a sliding mode control (SMC) method for vibration control of a 5 degrees of freedom tower crane with variable cable length. The control system, with high robustness, helps move the load along the desired trajectory while effectively suppressing vibrations. The feasibility and effectiveness of the proposed control method are tested through simulations.
8 trang
4 lượt xem
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Internal control system in cooperatives: A systematic reviewThis article aimed to systematically synthesize related research in terms of IC in cooperatives around the world as well as in Vietnam, thereby aiming to identify the main research directions and research gaps of this topic.
15 trang
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Boiler SafetyThere are four major categories of catastrophic failure which exists in the boiler itself.
1. Melt down. This is a result of the heating surface metal reaching its melting point. It is a result of the boiler operating on very low water conditions. This by itself will not cause an explosion but will do major damage to the boiler and create a dangerous situation which could lead to an explosion.
24 trang
56 lượt xem
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Stabilizing the depth of a Towed Underwater Vehicle under the impact of random sea wavesStabilizing the depth of the Towed Underwater Vehicle (TUV) under the impact of ocean waves is the first problem when building a control and monitoring system for TUV. Many strategies and control methods have been proposed in different studies, but they are not a general standard.
9 trang
6 lượt xem
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Control strategy of dual fed open-end winding PMSM drive with floating bridge capacitorThis paper proposes a control strategy of open winding permanent magnet synchronous motor (OW PMSM) in field weakening modes. There are two inverters. One of them connected to the traction battery.
8 trang
14 lượt xem
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LoRaWan-based remote monitoring and control system for canal gates of paddy field irrigation systemsThis paper presents a LoRaWAN-based remote monitoring and control system for canal gates of paddy field irrigation systems. The proposed system employs the LoRa technique to create a network of sensor nodes that covers a wide geographical area, making it well-suited for large irrigation systems.
5 trang
11 lượt xem
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Summary of PhD thesis in Business Administration: Influence of the management control system to the performance of Vietnamese enterprisesThe research content of the dissertation is to experiment with the management control system in listed companies in Vietnam; Proposing some recommendations to increase operational efficiency in Vietnamese businesses.
0 trang
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Economics philosophy Doctor thesis: Improving internal control system of Vietnam bank for agriculture and rural development according to COSO international standardGeneral objective: Improvement of the ICS at Agribank according to COSO international standards. (2) Specific objectives: Building a theoretical framework for the ICS in commercial banks on the basis of COSO internal control framework and in accordance with characteristics of commercial banks, conditions for applying COSO internal control framework in commercial banks, criteria for measuring the improvement of the ICS in commercial banks; Evaluating the improvement situation of the ICS at Agribank according to COSO internal control framework, measuring the effectiveness of the ICS at Agribank, retesting on the basis of identifying factors and measuring the impact of each factor on the effectiveness of the ICS at Agribank, assessing the improvement situation of the ICS at Agribank; Proposing solutions to improve the ICS at Agribank to suit the operational characteristics of this bank based on the COSO internal control framework.
27 trang
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Summary of Doctoral thesis in Economics: Internal control system in Vietnamese commercial banksThe research object of the thesis is the internal control system at commercial banks in Vietnam; the thesis topic limits the scope of the thesis's research is the internal control system in commercial banks in Vietnam.
27 trang
66 lượt xem
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Summary of economic thesis: The impact of constituent factors of the internal control system on the business performance in Vietnam electricityThis research is aimed to explore elements of internal control system and evaluate their impact on effectiveness and efficiency of EVN’s operation, with the following goals: Finding factors of Internal Control System which effect EVN’s performance; evaluate those impact on EVN’s performance.
24 trang
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