Small Long-range Aircraft Of Uninterrupted Power Supply System Technology

With technology development, various types of vehicles are moving in the air a long,long journey evolving. For such long-range aircraft in the flight phase of the power systemneeds to complete the task of the whole power supply. To meet the power quality at the sametime, the uninterrupted power supply system for a long time higher reliability requirements.At present, various types of aircraft, power system design are different. In comparison, in thelong-range aircraft in the main power generator systems use more power, emergency power oruninterrupted power supply for the realization of one way or another. Especially in the batteryor super capacitor energy storage devices such as access, the means of achieving different. Forthe aircraft, because the reusability, security personnel, aircraft and equipment installationspace load conditions can the appropriate emergency power or uninterrupted power supply onthe part of the set, which greatly enhance the aircraft power system supply reliability Sex.However, in some special aircraft as a result subject to various conditions, in the long flightcan not be loaded or set the high-capacity, large volume of emergency battery, so in the courseof long-range flights will eventually work there was no emergency power supply systemUnreliable.With battery technology and switching power supply technology continues to evolve,making the detection, data processing, control-driven, power supply isolation circuits are toachieve the integration of hardware and miniaturization, the volume ratio of the batterycapacity, discharge density indicators more For the optimization. In the realization of somelong-range aircraft to meet the short-term emergency power or uninterrupted power supplyneeds to provide technical basis.Through long-range aircraft on certain types of analysis of a typical load, arrive at sometypical vehicle load on the power supply system power requirements. In particular theanalysis of the power generator and DC power distribution between the battery. Find thecorresponding DC power load, which select the appropriate battery type and indicators.Proposed a two-way converter circuit through the battery charge and discharge method. Selecta typical buck-boost bidirectional converter circuit as the main circuit. Through high-speedswitching bidirectional converter control, to achieve the battery energy storage and emergencydischarge. In this paper, batteries for power system load characteristics and proposed chargingthe battery discharge and two fuzzy control strategy. Some small aircraft in the system toincrease the power generating system to provide short-term emergency or supplemental power supply presents a technical approach. Solve the long-range aircraft in a small uninterruptiblepower supply system and reliable power supply requirements, while the greatest degree ofincrease battery efficiency, to reduce the number of power supply system circuit devices toreduce battery size and weight.