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Control method for cooling an industrial plant

A kind of technical equipment and equipment technology, applied in general control system, temperature control using electric mode, adaptive control, etc., can solve the problem of not considering instantaneous cooling power, etc.

Inactive Publication Date: 2008-12-24
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the case of other operating states of the transformer than the rated operating state, it is not possible to determine the hot spot temperature without any doubts, because on the one hand the physical calculation model on which the rated operating state (and thus the calculation of the thermal temperature) is based cannot Fully applicable to other operating states of the transformer
Furthermore, the current status parameters of the cooling system, such as how many pumps and fans are currently running, are not interrogated, so that the instantaneous cooling power is not taken into account when determining the current actual winding temperature

Method used

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  • Control method for cooling an industrial plant
  • Control method for cooling an industrial plant

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Embodiment Construction

[0021] figure 1 A flow chart of the method according to the invention is shown. The current hot spot temperature (HPT) is determined from the temperature measured at the temperature sensor by means of the temperature parameters defined in the international standard IEC Standard IEC 60354. Furthermore, the ambient temperature is measured by means of the temperature sensor 4 , the state of the oil by means of the sensor 5 . 1 for the gaseous fraction in the oil and the oil moisture sensor 5 . 2 , and the oil level inside the boiler by means of the buoy 6 . The hot spot temperature (HPT) determined in this way is used in the control scheme currently used at the particular transformer 2 in order to determine the actual measured temperature of the technical installation 1 . For this purpose, an optimal control profile is selected for the current operating state, the current service life of the transformer 2 and the optimized operating state specified by the user. If an optimized ...

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Abstract

The invention relates to a method for controlling the cooling of an industrial plant with at least one electrical component, such as, for example, a transformer, comprising at least one cooling element for cooling the electrical components, wherein at least one sensor is provided for measuring the temperature and / or the viscosity of the coolant in the cooling system. An optimal control of the cooling system can be provided by means of controlling the electrical components with selected control profiles taking into account specific data for the electrical components.

Description

technical field [0001] The invention relates to a method for controlling the cooling of a technical device having at least one electrical component and a cooling system with at least one cooling element for cooling the electrical component, wherein at least one sensor measures the temperature and / or Or the viscosity of the cooling medium in the cooling system. Background technique [0002] Cooling of electrical components, especially oil-immersed transformers, is necessary due to the thermal energy generated during their operation. Traditionally, in the case of oil-cooled transformers, a cooling circulation system is used passing between the windings, in which a cooling medium such as cooling oil circulates. The heating of the cooling oil creates a heat layer inside the cooling cycle, allowing the cooling oil to circulate within the cooling system. At the same time, the cooling system is usually connected with a heat exchanger, which outputs the heat of the cooling oil as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/02H01F27/12
CPCG05D23/19H01F27/12G05B19/418
Inventor 托马斯·布雷茨纳冈特·埃克特沃尔特·雷布林赫尔穆特·休勒
Owner SIEMENS AG
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