Direct-current power source floating charge control method and direct-current power source system

• Main Authors: DING YUAN, HAO XIAOHUI, LUO ZHIJUN, YIN QIANG, HUANG JUNWEI, ZHAI SIJIE, GAN JIANGHUA, LOU PANPAN
• Format: Patent
• Language: Chinese; English
• Published: 24.01.2020
• 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 relates to a direct-current source supply floating charge control method and a direct-current power source system. The charging state of a battery module is detected; when the charging state of the battery module is a floating charging state, rectification modules are divided into at least two groups; in any floating charge period, each group of rectification modules is controlled tobe switched on alternately, and each group of rectification modules only operates once, namely only a part of the rectification modules are switched on each time, so that a condition that all the rectification modules are switched on at the same time is avoided, and therefore, the internal temperature of each rectification module cannot be very high, and the damage and aging degree and speed of devices in the rectification modules are reduced; resource waste caused by the fact that all the rectification modules are put into use in a floating charge state is avoided, and therefore, the resource utilization rate of the