Energy storage type power supply device for mutual inductor temperature rise test

• Main Authors: HUANG QINGDAN, ZHANG MIN, TIAN YAN, WANG YONG, BANG GUN, WANG HONGBIN, LIN XIANG, HONG HAICHENG
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2024
• 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 belongs to the field of electrical equipment, and discloses an energy storage type test power supply device for a mutual inductor temperature rise test, which comprises a three-level AC/DC, a DC/AC, a bidirectional DC/DC and an energy storage system, the AC/DC is connected with a power grid through the grid-connected switch, and the AC/DC is connected with the VFI load through the DC/AC; a VFD load is connected between the AC/DC and the grid-connected switch; the energy storage system is connected between the AC/DC and the DC/AC through the bidirectional DC/DC; the maximum discharge power of the energy storage system is not less than the sum of the rated power of the VFI load and the rated power of the VFD load; the system further comprises a DC-DC controller and an AC/DC controller. According to the invention, emergency power can be provided for key loads of the VFI and the VFD, the cost is reduced, the utilization rate of the storage battery is improved, and the transient process caused by dem