Redundancy configuration system for LCI logic control panels

Abstract

The invention discloses a redundancy configuration system for LCI logic control panels. The redundancy configuration system is characterized in that controller software of the two LCI logic control panels are completely the same in logic, and input signals and output signals are connected in parallel; (2) the input signals of the two LCI logic control panels are connected in parallel after being isolated through an intermediate relay; (3) an input coil of the first LCI logic control panel and an intermediate relay coil are connected in parallel after being isolated through a diode; (4) the output signals of the two LCI logic control panels are connected in parallel. The redundancy configuration system for the LCI logic control panels solves the problem of input parallel connection of LCI logic control panels of different manufacturers, realizes redundancy configuration of the LCI logic control panels, and improves the operation reliability of the LCI logic control panels. The redundancy configuration system for the LCI logic control panels is convenient to construct, gives sufficient consideration to implementation feasibility of reconstruction projects, and has good application and popularization value.

Description

technical field [0001] The invention belongs to the field of electrical engineering, in particular to an LCI logic control board redundancy configuration system. Background technique [0002] Static inverter (Load Communicated Inverter, referred to as LCI) is a large-scale gas turbine generator starting equipment. The machine is dragged to the target speed smoothly to avoid the impact on the grid access point. The LCI logic control panel mainly realizes the switching of required signals and the control functions of related circuit breakers and isolating switches when multiple sets of LCI systems drive multiple units. Taking an actual gas turbine power station as an example, the power station uses two sets of LCIs to drive three units. The primary electrical schematic diagram is shown in figure 1 . [0003] from figure 1 It can be seen in the figure that in order to realize two sets of SFCs driving three units, a large number of switching isolation switches need to be add...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a redundant configuration system for LCI logic control panels, which solves the problem of parallel connection of LCI logic control panels from different manufacturers, realizes redundant configuration of LCI logic control panels, and improves the operation of LCI logic control panels. reliability

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