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Method for selective parallel operation of measuring/control devices

A control device, parallel technology, used in circuit devices, electric controllers, reactive power/actual component measurement, etc.

Active Publication Date: 2020-05-29
MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first method, so-called synchronous control, can only be implemented in transformers with the same voltage, power, short-circuit voltage, tap voltage and tap number

Method used

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  • Method for selective parallel operation of measuring/control devices
  • Method for selective parallel operation of measuring/control devices
  • Method for selective parallel operation of measuring/control devices

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Embodiment Construction

[0036] In the figures, the same reference signs are used for identical or identically acting elements of the invention. Furthermore, for the sake of clarity, in the individual figures only the reference signs required for the description of the respective figure are shown.

[0037] figure 1 Shows the voltage U measured across the transformers of the transformer-parallel circuit M , the measured voltage is in the interval 3 defined by the upper voltage level 5 and the lower voltage level 6 in terms of time. Between the upper voltage level 5 and the lower voltage level 6 there is a theoretical voltage value 1, the voltage to be regulated U Regel It is possible to fluctuate around this target value without the tap changer switching the secondary side of the transformer one or more steps higher or the secondary side of the transformer lower by one or more steps. The tap-changer is only used when the voltage U to be regulated Regel Switching occurs when the upper voltage level ...

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Abstract

The invention discloses a method for regulating a plurality of transformers (T1, T2, ..., TN) in parallel operation in a parallel circuit (10), wherein for each of the transformers (T1, T2, ..., TN) The transformer is assigned a measurement / control device (12) and all measurement / control devices (12) are connected to each other via a communication link (16). An interruption (16) of the communication link (14) is indicated in the absence of a readiness signal from at least one measuring / control device (12). The measured values ​​determined at the moment of the interruption (t) remain unchanged for the duration of the interruption (16) and are also included during the interruption (16) in the calculation of the control deviation in order to realize the transformers (T1, T2, . . . , TN) to minimize the loop reactive current.

Description

technical field [0001] The invention relates to a method for selective parallel operation of measuring / control devices. This method is used for parallel operation regulation of transformers. For this purpose several transformers are arranged in a parallel circuit. Each of the transformers is equipped with a measurement / control device and a tap changer. All measuring / control devices of the tap changer are connected to each other via a communication connection. Background technique [0002] There are basically two methods generally accepted for the parallel control of each tapped transformer. [0003] The first method, so-called synchronous control, can only be implemented in transformers of the same voltage, power, short-circuit voltage, tap voltage and tap number. In this method, all transformers of the respective parallel-connected groups must be in the same operating state. This method is also known as the “master-slave method” and is in addition the only method for t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18H02J3/46
CPCH02J3/1878H02J3/46Y02E40/30G05B11/01H02P13/00G01R19/06
Inventor S·阿贝勒恩D·普赖斯勒A·伊尔格韦奇斯K·菲尔埃克T·瓦格纳T·格鲁贝尔
Owner MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG
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