Flow control

We also applied our proposed model to a real life system of an islanded MG at small-scale with demand, PV power, and WTG power forecast, and the DEG output power is control variable. The results of test system have demonstrated the effectiveness of the proposed method.

9p viyoko 01-10-2024 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 5 2   Download

The current research is undertaken by performing Computational Fluid Dynamics (CFD) simulations for a 2D aerofoil fitted with a shock control bump at a transonic flow condition. Reynolds-Averaged Navier-Stokes equation coupled with turbulence models is adopted to solve the flowfield. The bump has a conventional geometric feature which consists of a ramp, a crest and a tail, and it has eight variants for which the designed parameters are reasonably specified according to the compressible aerodynamics theory.

84p runthenight04 02-02-2023 6 3   Download

: Fluid vents in the Sea of Marmara were discovered and investigated by several studies. In this paper, a numerical model is created for the first time to determine the possible transport mechanism behind those fluid emissions at the seafloor. The finite volume method is used for numerical simulations by implementing a commercial finite volume code, ANSYS-Fluent. The thermal and physical rock properties used in our models are taken from previous studies.

11p tanmocphong 29-01-2022 7 1   Download

The main objective of the thesis is to provide general methods to control oscillation based on measurement of energy flow, namely: Find the optimal solution for passive control systems based on energy flows; propose the semi-active control algorithms to control the energy flow.

27p capheviahe27 23-02-2021 20 3   Download

Studying and proposing some improvements in the burst assembly with delay reduction to reduce the communication delay over OBS networks; Studying and proposing a solution of the burst assembly with delay fairness for delay-based QoS difference, delay reduction and delay fairness of different priority flows. Studying and proposing a solution with throughput fairness, which can be applied to different types of incoming flows with Poisson and nonPoisson distribution.

27p gaocaolon6 30-07-2020 19 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 17 1   Download

The second essay examines the effect of banking system reform, which is defined by the presence of foreign banks, on investment-cash flow relation in a context of a small transition economy. I find evidence that the presence of foreign banks in Vietnam results in decreasing in firm’s dependence on local banks and has changed their financial constraint. Company investments are less reliant on internal cash flow in the post reform period.

178p kequaidan6 15-07-2020 22 1   Download

This study simulated a control rod assembly (CRA), which is a part of reactor shutdown systems, in immersed and fluid flow conditions. The CRA was inserted into the reactor core within a predetermined time limit under normal and abnormal operating conditions, and the CRA (which consists of complex geometric shapes) drop behavior is numerically modeled for simulation.

14p minhxaminhyeu3 12-06-2019 12 1   Download

Một trong các giải pháp để tránh quá tải cho các đường dây là phân bố tối ưu dòng công suất trên lưới điện bằng cách sử dụng thiết bị điều chỉnh dòng công suất hợp nhất UPFC (Unified Power Flow Controller). Vì vậy trong bài báo này, vấn đề lựa chọn vị trí đặt của thiết bị UPFC được tính toán trên mô hình lưới điện mẫu.

11p hanh_tv21 08-03-2019 55 1   Download

Chương 4 trình bày về "Giao thức TCP". Nội dung cụ thể của chương này gồm có: Tổng quan Giao thức truyền tải hướng kết nối, TCP, cấu trúc segment, truyền tải số liệu tin cậy, điều khiển luồng (flow control), quản lý liên kết, kiểm soát nghẽn, kiểm soát nghẽn TCP,…

46p saobien_09 20-03-2018 20 3   Download

Modeling and simulation of dynamic systems is Pham Huy Hoang Electromotive force (emf) voltage (electromotance): is that which tends to cause current (actual electrons and ions) to flow, is the external work expended per unit of charge to produce an electric potential difference across two open-circuited terminals.

13p 1love123 30-08-2017 55 3   Download

This paper focuses on a SCESS in terms of modeling and control designing aim to manage active power flow between the grid and the SCESS. A predictive control algorithm for discrete-time bilinear state-space model of a non-isolated bidirectional DC-DC converter is proposed. This algorithm is supplementary methods for this converter besides linear or hysteresis control methods in other research. Simulations validate the effectiveness of the proposed control.

10p dieutringuyen 07-06-2017 60 3   Download

Bài giảng Lập trình nâng cao - Chương 2: Flow of Control được biên soạn nhằm giúp các bạn biết cách để viết một chương trình, Food for thought,... Vói các bạn chuyên ngành Công nghệ thông tin thì đây là tài liệu hữu ích.

40p maiyeumaiyeu28 13-01-2017 55 4   Download

Bài giảng Mạng máy tính - Chương 4: Giao thức TCP giới thiệu tổng quan giao thức truyền tải hướng kết nối, TCP, cấu trúc segment, truyền tải số liệu tin cậy, điều khiển luồng (flow control), quản lý liên kết, kiểm soát nghẽn, kiểm soát nghẽn TCP.

46p maiyeumaiyeu27 10-01-2017 100 6   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

Upon completion you will be able to: Understand the connections needed for FTP file transfer be familiar with FTP commands and responses know the differences between FTP and TFTP be familiar with TFTP message types understand TFTP flow and error control.

26p tangtuy09 26-04-2016 57 3   Download

Upon completion you will be able to: Be able to name and understand the services offered by TCP, understand TCP’s flow and error control and congestion control, be familiar with the fields in a TCP segment, understand the phases in a connection-oriented connection, understand the TCP transition state diagram, be able to name and understand the timers used in TCP, be familiar with the TCP options.

64p tangtuy09 26-04-2016 40 3   Download

When you finish this chapter, you should: Be able to name and understand the services offered by SCTP, understand SCTP’s flow and error control and congestion control, be familiar with the fields in a SCTP segment, understand the phases in an SCTP association, understand the SCTP state transition diagram.

82p tangtuy09 26-04-2016 43 2   Download

Lecture "Fundamentals of control systems - Chapter 2: Mathematical models of continuous control systems" presentation of content: Presentation of content, transfer function, block diagram algebra, signal flow diagram, state space equation, linearized models of nonlinear systems.

120p doinhugiobay_17 04-03-2016 98 8   Download