High-voltage energy taking device and method based on stray capacitance

The invention discloses a stray capacitance-based high-voltage energy taking device and method. The stray capacitance-based high-voltage energy taking device comprises a high-voltage energy taking electrode, a low-voltage energy taking capacitor and a low-voltage energy taking circuit, the high-voltage energy-taking electrode is arranged between a high-voltage line and the ground to obtain stray capacitance to the ground, and the stray capacitance is equivalent to high-voltage energy-taking capacitance; the low-voltage energy-taking capacitor is connected in series between the high-voltage energy-taking capacitor and the high-voltage line; and the low-voltage energy-taking capacitor is connected with a load through a low-voltage energy-taking circuit. The high-voltage energy taking device based on the stray capacitance does not need an insulating supporting structure, the equipment cost is remarkably reduced, the structure is simple, the size and weight are remarkably reduced, and the high-voltage energy taki