High-voltage power supply control method capable of improving ESP operating voltage and stabilizing spark rate

The invention discloses a high-voltage power supply control method capable of improving ESP operating voltage and stabilizing spark rate, and a spark discharge interruption processing method comprises the following steps: recording a secondary voltage value U2h and a silicon controlled rectifier conduction angle alphah at a spark discharge moment, after blocking time, constantly triggering a silicon controlled rectifier at the conduction angle alphah-beta, and rapidly boosting by gradually changing the duty ratio of an IGBT (Insulated Gate Bipolar Transistor); and when the duty ratio of the IGBT reaches the maximum, controlling the conduction angle of the silicon controlled rectifier to be rapidly increased at a set speed V2, boosting to a voltage value close to U2h, stably operating for Tw time under the voltage value, then controlling the conduction angle of the silicon controlled rectifier to be increased at a set speed V3, and finally operating at the maximum output power. The spark discharge frequency (s