Airplane dual-redundancy power supply anti-parallel circuit based on priority

• Main Authors: YAO LEI, SUN JUN, HAO QIWEI, BAI PENGFEI
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2023
• 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 technical field of aviation power distribution, and particularly relates to a priority-based airplane dual-redundancy power supply anti-parallel circuit. The circuit comprises a main channel alternating current contactor, a standby channel alternating current conversion contactor, a 28V bus bar, a main channel alternating current relay and a standby channel alternating current conversion relay. Under the condition that the first controller and the second controller have no signal cross-linking, coil control loops of the contactors and the relays and the normally-closed/normally-open contacts are mutually connected in series to form a hardware interlocking network, and under the combined action of the first controller, the second controller and the hardware interlocking network, it is reliably guaranteed that the alternating current power supply priority of the main channel is higher than that of the standby channel; and meanwhile, parallel connection of redundant power supply chan