Control principle

This article presents a breakthrough in the field of laser engraving from the perspective of polar coordinates. The system has applied scientific and technical principles to the automation of production, enhancing productivity, and reducing human labor.

9p viengfa 28-10-2024 5 2   Download

This paper first briefly introduces principles, construction procedures and quality control techniques of an innovative CDM method that can create head-enlarged column, named as Point Foundation (PF).

14p vifilm 24-09-2024 2 1   Download

The purpose of the field-oriented control (FOC) is therefore to create a tool that allows the decoupling control of the flux and torque-producing current components from the three-phase AC currents flowing in the coil. The FOC drive system is a system based on the principle of decoupling the above power components thanks to the stator current feedback control (the innermost circuit of the drive system). The FOC-type control method belongs to the class of vector control methods for electrical machines.

22p dianmotminh02 03-05-2024 6 2   Download

Lecture Well control present the content: well control principles, warning signs of kicks, secondary control, primary control, lost circulation, solids removal, excessive dilution of the mud (due to watering-back), gas cutting of the mud, reduced height of mud column, primary indicators of a kick, secondary indicators,...

141p bachkhinhdaluu 03-12-2021 14 1   Download

This paper proposes a servo controller design and fault detection algorithm for speed control of conveyor system (CS). Firstly, modeling for a CS is described. Secondly, the robust servo controller based on polynomial differential operator is applied to track the trapezoidal velocity profile reference input. Thirdly, a fault detection algorithm based on Extended Kalman Filter (EKF) is proposed.

5p sotritu 18-09-2021 30 2   Download

Enterprise Resource Planning (ERP) system is one of the most popular forms of IT for businesses at present. Deriving from efforts to rationalize lead times and possession stock costs, the 80’s manufacturing resource planning (MRP II) is developed into ERP system considered as the standard that integrates business processes throughout the organization, which in turn enhances operational efficiency (Akkermans, Bogerd, Yücesan, & Van Wassenhove, 2003; Davenport, 1998). Callaway (1999) states that the ERP system promises to achieve benefits in both tangible (e.g.

270p kequaidan6 15-07-2020 18 2   Download

Chương 3 bài giảng cung cấp cho người học các kiến thức: Transport Layer pervices & principles, Multiplexing/Demultiplexing, connectionless transport (UDP), principles of reliable data transfer (RDT), connection-oriented transport (TCP), congestion control, sử dụng TCP hay UDP. Mời các bạn tham khảo.

98p nguoibakhong02 19-03-2018 51 6   Download

In this paper, the passivity based-principle is applied to design a controller for DFIG, in which the Euler - Lagrange (EL) based-method and Hamiltonian rules are incorporated. The proposed controller overcomes static error of the current controller without Hamiltonian rules. The system can also offer exellent performances above and below synchronous speeds of the DFIG.

11p binhminhmuatrenngondoithonggio 09-06-2017 51 5   Download

In this paper, the passivity based-principle is applied to design a controller for DFIG, in which the Euler - Lagrange (EL) based-method and Hamiltonian rules are incorporated. The proposed controller overcomes static error of the current controller without Hamiltonian rules. The system can also offer exellent performances above and below synchronous speeds of the DFIG.

8p binhminhmuatrenngondoithonggio 09-06-2017 50 4   Download

Wind power plants can be realized with different generator types using different control principles. The choice of the generator regardless of control method, potentially destabilizes the grid, and can even lead to grid collapse. For independent grid (e.g. on islands) this risk is especially great. The report aimed at giving the reader a general overview of the control methods, and the developers a better understanding of each generator type to get the right choice for their wind power project.

22p dieutringuyen 07-06-2017 58 2   Download

The paper introduces an algorithm to design a feedback controller, which guarantees the tracking of time varying bilinear system outputs for desired values in the presence of input constraint. The proposed controller employs the ideas of receding horizon principle and constrained optimal control.

10p dieutringuyen 07-06-2017 28 1   Download

After completing this chapter you should be able to: Define fraud and internal control, identify the principles of internal control activities, explain the applications of internal control principles to cash receipts, describe the operation of a petty cash fund,...and other contents.

67p yenhinguyen0504 06-04-2017 43 5   Download

To transform an analog signal into a digital one, the analog-to-digital converter (ADC) samples the input at fixed interval and do the conversion.

21p tungxxx 14-03-2017 48 2   Download

Chapter 17 - Process improvement using control charts. After mastering the material in this chapter, you will be able to: Discuss the principles and importance of quality improvement, distinguish between common causes and assignable causes of process variation, sample a process by using rational subgrouping.

14p whocare_b 05-09-2016 51 1   Download

(BQ) Chapter 17: Additional topics in variance analysis. In this chapter, we discuss additional variances to illustrate some of the ways the basic variance analysis model can be extended and adapted to specific circumstances. The basic principles are exactly the same as those we discussed in chapter 16.

30p tangtuy16 02-07-2016 56 4   Download

Subjects and scope of the dissertation are a system of 6 reservoirs (Ka Nak, An Khe, Ayun Ha, H'nang, Ba Ha and Hinh) and the flood flow regime on the Ba River basin. The thesis focuses on developing inter-reservoir operation principles to mitigate flood damages, protect downstream area, and ensure efficiency of water use.

27p change04 08-06-2016 57 4   Download

Lecture "Fundamentals of control systems - Chapter 1: Introduction" presentation of content: What is control system, control principle, components off control systems, examples of control systems, review of complex variables and Laplace transform.

93p doinhugiobay_17 04-03-2016 71 11   Download

Bài giảng "Mạng máy tính - Chương 3: Giao thức tầng giao vận (transport layer)" cung cấp cho người học các kiến thức: Transport Layer Services & Principles, Multiplexing/Demultiplexing, Connectionless Transport, Principles of Reliable Data Transfer, Connection-oriented Transport, Congestion Control,... Mời các bạn cùng tham khảo.

43p doinhugiobay_12 15-01-2016 65 4   Download

Chương 3 của bài giảng Mạng máy tính trình bày một số nội dung sau: Transport layer services & principles, multiplexing/demultiplexing, connectionless transport (UDP), principles of reliable data transfer (RDT), connection-oriented transport (TCP), congestion control, sử dụng TCP hay UDP. Mời các bạn cùng tham khảo.

64p kiepnaybinhyen_01 27-11-2015 49 6   Download

Chương 3 Giao thức tầng giao vận (transport layer) nằm trong bài giảng mạng máy tính và Internet nhằm trình bày về transport Layer Services & Principles, Multiplexing/Demultiplexing, Connectionless Transport (UDP), Principles of Reliable Data Transfer (RDT), Connection-oriented Transport (TCP), Congestion Control, sử dụng TCP hay UDP.

43p fast_12 24-06-2014 209 20   Download