Parallel excitation series receiving type topological structure for separately excited pulse generator excitation energy recovery

• Main Authors: WANG YOULONG, YAN PING, ZHANG YING, SUN YAOHONG, LI WENCHAO, FU RONGYAO
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2022
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention provides a shunt excitation series receiving type topological structure for separately excited pulse generator excitation energy recovery. The topological structure has obvious advantages in a separately excited power supply composed of a plurality of single-module pulse capacitors. The topological structure is mainly characterized in that the characteristics of an underdamping second-order oscillation circuit are utilized to enable a pulse capacitor to generate reverse voltage so as to realize state switching of excitation current; a parallel excitation and series receiving mode is adopted, so that the voltage withstanding level of the system is reduced, rapid recovery of residual excitation energy can be realized, the repeated discharge frequency is improved, heating of an excitation winding is reduced, and the recovery efficiency is improved; each pulse capacitor module is provided with three thyristors, two of the three thyristors are excitation switches which are connected to the positive e