Method and system for fluid flow control in fluid network systems

A fluid network and fluid flow technology, applied in the direction of using electrical device flow control, flow control, general control system, etc., to achieve the effect of easy repeatability and simple network identification

Active Publication Date: 2019-01-08
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the determination of the dynamic simulation model of the mine is a complex process that must be repeated whenever the infrastructure of the address mine is modified

Method used

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  • Method and system for fluid flow control in fluid network systems
  • Method and system for fluid flow control in fluid network systems
  • Method and system for fluid flow control in fluid network systems

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Embodiment Construction

[0035] For purposes of illustration and not limitation, in the following description specific details are set forth, such as specific techniques and applications, in order to provide a thorough understanding of the present disclosure. However, it will be apparent to those skilled in the art that the present disclosure may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known methods and devices are omitted so as not to obscure the understanding of this description with unnecessary detail.

[0036] The present disclosure may be used for fluid flow control in fluid network systems such as ventilation systems for site mines, building ventilation systems, district heating / cooling, drainage systems for site mines and similar systems, etc., as will be apparent to those skilled in the art knew. For ease of illustration only, the fluid network system will be exemplified below by addressing the mine's ventila...

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Abstract

A method of controlling fluid flow in a fluid network system through a plurality of fluid machines is provided. The method comprises the steps of: a) obtaining a corresponding current fluid flow rate associated with each fluid machine; b) obtaining a current fluid machine speed of each fluid machine; c) obtaining an expected fluid flow rate in the fluid network system; d) A new fluid machine speed for each fluid machine is determined by changing the fluid machine speed and the fluid machine speed required to obtain the desired fluid flow rate by making the total fluid machine power (which is related to the change in fluid machine speed function) minimization to determine, the minimization is performed using constraints on the fluid flow rate, fluid machine pressure and fluid machine speed; and e) control the speed of a plurality of fluid machines according to the new fluid machine speed, so that the fluid network system is obtained The minimum total fluid machine power in . A computer program product and a control system are provided herein.

Description

technical field [0001] The present disclosure relates to fluid network systems, and in particular to fluid flow control in such systems. Background technique [0002] Large fluid network systems can consume large amounts of energy in some applications. An example of such a fluid network system is the ventilation system of an underground mine. Such a ventilation system can include a number of fans which need to be operated in order to maintain sufficient air quality for healthy working conditions in the mine. [0003] Ventilation on demand (VOD) control is sometimes used today to reduce the energy consumed in underground mines. In short, VOD means directing fresh air to specific locations in an underground mine only when needed and in sufficient quantities to achieve a healthy working environment. Attempts have been made to use network models, ie models describing the fluid dynamics of underground mine networks, but suffer from sensitivity to changes in the mine's infrastr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D7/06E21F1/00F24F11/64F24F11/88F24F110/40
CPCG05D7/0682E21F1/02Y02B30/70F04D27/00G05B15/02
Inventor M.伦德J.恩奎斯特
Owner ABB (SCHWEIZ) AG
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