Converter with waste energy collecting and electric energy quality adjusting functions and method

The invention relates to a converter with waste energy collection and electric energy quality adjustment functions, which comprises a circuit breaker K1, one end of the circuit breaker K1 is connected with an electric vehicle battery B1, the other end of the circuit breaker K1 is respectively connected with a circuit breaker K2, an anode of a diode D1, a cathode of a capacitor C1, a connection point A, a connection point B and one end of an electric reactor L2, and the other end of the circuit breaker K2 is grounded through an adjustable resistor R1. The other end of the electric reactor L2 is connected with a frequency measurer M, the frequency measurer M is respectively connected with a collector electrode of a transistor T3 and a small-capacity electrochemical energy storage battery B2, an emitting electrode of the transistor T3 is connected with the small-capacity electrochemical energy storage battery B2, and one end of a circuit breaker K3 is connected with the emitting electrode of the transistor T3. T