It is very difficult to accurately control the speed of paper roller and sword roller of the paper cutting machine, and the proportions of two paces control have greater randomness. Alterablefuzzy-PID (proportion inte...
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The rise in energy costs urged the need in minimizing the energy consumption. As significant amount of energy is used for illuminating in educational buildings such as lecture halls and lecture rooms, improvements is ...
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When wireless sensor networks are introduced in industrial settings, they will be part of a much larger heterogeneous sensor and actuation network that includes those sub-networks together with Ethernet cabled Program...
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The programmable controller can realize stable and reliable mechanical automation control. According to the given design requirements, sensor selection, analysis of hall sensor circuit diagram and the principle of wor...
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Sequential control using ladder logic, programmable logic controllers (PLCs), and operator interfaces are commonly used in the manufacturing industry today. The introduction course of programmablelogic controller is ...
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This paper describes the use of the SIMATIC WinCC software for interfacing City Resources Management System by using a network implemented with high performance industrial programmable logic controllers. This system a...
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Protection devices must recognize the errors in electricity supply network and separate the fault from the rest of the supply network, which is determined by comparing actual to adjusted intensity of voltages and curr...
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A large number of load shifting projects have been successfully implemented on mine dewatering pumps since the inception of Eskom's Demand Side Management (DSM) initiative in 2003. In addition to electrical cost s...
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ISBN:
(纸本)9780992204112
A large number of load shifting projects have been successfully implemented on mine dewatering pumps since the inception of Eskom's Demand Side Management (DSM) initiative in 2003. In addition to electrical cost savings, mines have benefitted from reduced operational costs and the installation of new equipment such as electrically actuated valves, pressure sensors, programmable logic controllers, etc. This equipment enables the automatic stopping and starting of dewatering pumps by a real time energy management system (REMS) that aims to minimise the amount of pumps utilised in peak periods. Experience has shown that some mines do not always have the capacity to ensure that DSM projects are sufficiently maintained. This leads to gradual deterioration of performance. In this paper, a case study on the re-implementation and maintenance of a load shifting project on the dewatering pumps of a typical South African gold mine is presented. We discuss solutions to the challenges associated with this process and provide results that prove the value of re-implementing and correctly maintaining a load shifting project on mine dewatering pumps.
programmablelogic controller is still the main device used for control of productive systems, which can be approached as discrete event dynamic systems. For programming these controllers, five languages were standard...
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The proceedings contain 48 papers. The topics discussed include: design challenges in building an advanced NAND flash array controller for 19120 nm MLC;flash in an enterprise storage array - 10x performance for less t...
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ISBN:
(纸本)9781467388818
The proceedings contain 48 papers. The topics discussed include: design challenges in building an advanced NAND flash array controller for 19120 nm MLC;flash in an enterprise storage array - 10x performance for less than disk;flash trends: challenges and future;flash adoption in the enterprise;hotchips 2013: clovertrail+ smartphone SoC platform mark;the chip design game at the end of Moore's law;being in the moment with Google glass;a 50% lower power ARM cortex CPU using DDC technology with body bias;silicon photonics technology platform for integration of optical lOs with ASICs;NetSpeed ORION: a new approach to design on-chip interconnects;and integrating rack level connectivity into a PCle switch.
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