Control device and method for controlling chaos based on reactive compensation

Abstract

The invention discloses a control device and a method for controlling chaos based on reactive compensation, which comprises a high potential plate and a thyristor controlled reactor, and further comprises a central processing unit, a reactive compensation unit, a chaos control unit, a power source and a communication module; wherein the central processing unit comprises a sampling module, a preprocessing module, a detection single chip microcomputer, a memory module and a comprehensive treatment single chip microcomputer; the reactive compensation unit comprises a reactive compensation processor, a reactive compensation controller and a feedback sampling module I; the chaos control unit comprises a chaos control processor, a chaos control controller and a feedback sampling module II. The method includes: collecting three phase phase voltage instantaneous values and three phase line current instantaneous values; calculating power grid operating parameters; judging signal anomaly parameters, sending the power grid operating parameters and judging signal anomaly parameters to a liquid crystal display (LCD) to display; and controlling the thyristor controlled reactor to output reactive power. The control device can monitor the power grid operating state in real time, the safety of the reactive compensation is improved, and damages caused by inappropriate compensation of the reactive power to the power grid are decreased.

Description

technical field [0001] The invention belongs to the technical field of electric power system automatic control, and in particular relates to a control device and method for suppressing chaos based on reactive power compensation. Background technique [0002] At present, chaos has penetrated into many research fields in the power system. Chaotic oscillation, including the oscillation caused by reactive power, is a very complex phenomenon caused by the interaction of various parameters in the nonlinear system. When it appears in the power system, it will With the continuous irregular oscillation of system operating parameters; when the reactive power of the system is within a certain range, the system will appear chaotic phenomena, that is, when the device that emits reactive power SVC is connected to the power system, the system may contain chaotic phenomena. As a typical nonlinear system, the power system's dynamic behavior includes complex nonlinearity, such as low-frequenc...

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Problems solved by technology

[0005] Aiming at the problem of chaos in the power system, the present invention provides a control device and method for suppressing chaos based on reactive power compensation, which suppresses the chaos of the power system by controlling the output of reactive power

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