Aircraft power distribution system control architecture based on bus bar power controller

Abstract

The invention provides an aircraft power distribution system control architecture based on a bus bar power controller. In an alternating current channel of a power distribution system, a ground powersupply contactor AC EPC is monitored by a first bus bar power controller BPCU1, and other contactors and bus bars in the alternating current channel comprise a left main power generator contactor GLC1, a right main power generator contactor GLC2, an APU power generator contactor ALC, a left alternating current interconnection contactor AC BTC1, a right alternating current interconnection contactorAC BTC2, a left main alternating current bus bar AC BUS1 and a right main alternating current bus bar AC BUS2, are controlled by a first bus bar power controller BPCU1, and is taken over by a secondbus bar power controller BPCU2 after the BPCU1 breaks down, corresponding hardware interlocking logic is set for control of the AC BTC1 and the AC BTC2 to prevent parallel connection of AC sources, and signals between two bus bar power controllers (BPCUs) are transmitted through a CAN bus. According to the invention, the bus bar power controller is clear in control strategy logic, clear in time sequence, stable in work, high in reliability and obvious in practical value.

Description

technical field [0001] The invention belongs to the technical field of aviation power distribution, and relates to an aircraft power distribution system control framework based on a bus bar power controller. Background technique [0002] From the 1970s to the early 1980s, the concepts of all-electric aircraft and multi-electric aircraft appeared in foreign countries. Since then, all-electric and multi-electric aircraft, especially multi-electric aircraft, have been Good performance and other advantages have gradually become the development direction of aircraft electrical systems, which requires higher and higher digitalization of power distribution control technology. The implementation methods of international advanced aircraft power distribution control are shown in Table 1: [0003] Table 1 International advanced aircraft power distribution control methods [0004] [0005] my country's civil aviation market is currently a relatively low-level and fast-growing marke...

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Problems solved by technology

China's own civil aircraft automatic power distribution technology research is relatively backward. Although the Xinzhou 60 turboprop aircraft has been put into the market and exported in small quantities, and the ARJ21 regional airliner has entered the operation stage, the power distribution system equipment of the above models mostly uses For the products of European and American suppliers, domestic suppliers can only undertake the manufacture of simple products or low value-added products, which restricts the development of domestic civil aircraft power distribution system equipment. The domestically mastered power distribution system control technology and advanced large passenger aircraft demand There is still a large gap between

Especially for bus power controller technology, various corresponding digital power controllers have been developed abroad and applied to large passenger aircraft. Domestically produced civil aircraft bus power controllers are not highly digitalized, and most still use central Conventional power distribution or remote control power distribution with centralized control, with the development of multi-electric and all-electric aircraft, centralized power distribution can no longer meet the electrical performance requirements of modern advanced aircraft, so it is urgent to improve the existing power distribution system and its Improve the management technology, carry out research on digital automatic power distribution related technologies as soon as possible, and lay the foundation for the subsequent identification of domestic civil aircraft applications

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