High-power adjustable high-frequency fractional-order capacitor with order greater than 1 and control method thereof

A high-power adjustable high-frequency fractional-order capacitor with an order greater than 1, comprising:

• an alternating current input module (1);
• a coupling impedance (2);
• a high-frequency alternating current controlled voltage source (3);
• an alternating current input sampling module (4);
• and
• a controller (5),
• wherein an end (A) of the alternating current input module (1) is connected to an end of the coupling impedance (2), the other end of the coupling impedance (2) is connected to a positive output end (P) of the high-frequency alternating current controlled voltage source (3), a negative output end (N) of the high-frequency alternating current controlled voltage source (3) is connected to the other end (B) of the alternating current input module (1),
• wherein the alternating current sampling module (4) samples an input current and an input voltage to obtain an amplitude and a phase of the input current as well as an amplitude and a phase of the input voltage and feeds the amplitudes and phases into the controller (5), the controller (5) processes sampled signals based on a fractional-order capacitor current closed-loop control algorithm and generates a control signal to send to the high-frequency alternating current controlled voltage source (3), and the high-frequency alternating current controlled voltage source (3) generates a fundamental wave voltage between the positive output end (P) and the negative output end (N) according to the control signal.