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Control method for drilling platform full-digital power generating and analog drive interface

A transmission interface and drilling platform technology, which is applied in the control system, control of generators, and control of generators through magnetic field changes. Improve and control the effect of problem simplification

Active Publication Date: 2019-04-16
TIANSHUI ELECTRIC DRIVE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no good control method between digital power generation and analog transmission

Method used

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  • Control method for drilling platform full-digital power generating and analog drive interface
  • Control method for drilling platform full-digital power generating and analog drive interface

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Embodiment

[0029] Each diesel generator set is composed of the unit itself and a full digital power generation system. If diesel generator sets 1, 2, 3, 4 and 5 are connected to the grid for power generation at the same time, the electric energy of each unit will be collected by the main switch of each generator to the AC bus. The interface circuit I of each unit detects the voltage and current signals of the unit, and calculates the active power and signal conversion in the interface circuit I. The output of the 5-way interface circuit I of the 5 units is connected to the interface circuit II, and in the interface circuit II Complete the selection of the maximum value of the five input signals, and then through the calculation of the power limiting unit, the interface circuit II outputs the power limiting control signal; this signal is respectively input into the analog DC governor SCR1, SCR2, SCR3, SCR4, SCR5 for power limiting control, figure 1The SCR1, SCR2, SCR3, SCR4, and SCR5 analo...

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Abstract

The invention discloses a control method for a drilling platform full-digital power generating and analog drive interface. The control method comprises a plurality of diesel generating sets, each diesel generating set is provided with an interface circuit, the interface circuits comprise active modules and conversion modules, input ends of the active modules are connected with two circuits, one circuits detect voltage signals of the diesel generating sets, and the other circuits detect current signals of the diesel generating sets; and output current signals of active power of the diesel powergenerating sets are calculated and input into the conversion modules, the current signals are converted into voltage signals through the conversion modules and output to an interface circuit II, theinterface circuit II takes a maximum value from the voltages signals input by interface circuits I of the diesel generating sets, power limiting control signals are obtained through logic operation and input into analog drive systems correspondingly, and the diesel generating sets are subjected to power limiting coordination control. According to the control method for the drilling platform full-digital power generating and analog drive interface, power limitation when a power generating system is overloaded is achieved, and safe and reliable operation of the diesel generating sets is ensured.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling, and relates to a method for controlling, grid-connecting and power limiting of a diesel generator set, and in particular to a method for controlling an interface of an all-digital power generation and an analog transmission of a drilling platform. Background technique [0002] At present, the control between digital power generation and digital transmission system of electric drilling rig, or the control between analog power generation and analog transmission, has mature control technology, such as: the power limit signal calculated by digital power generation of electric drilling rig, and the control of digital transmission system The load limit signal type is exactly the same, and the limit is effective when it is directly connected; the power limit control signal output by the analog power generation system is completely matched with the input analog transmission system signal, and t...

Claims

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Application Information

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IPC IPC(8): H02P9/10H02P9/30
CPCH02P9/107H02P9/30
Inventor 张天生冯益强张红梅蔡振王彦兵王华青马向平
Owner TIANSHUI ELECTRIC DRIVE RES INST
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