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.