Load simulation device

Abstract

The invention discloses a load simulation device. The device comprises a protection circuit, a main control board card, a power conversion circuit and a load resistor; the input end of the protectioncircuit is connected with the power supply voltage output end of an electrical system; the output end of the protection circuit is connected with the electricity input end of the power conversion circuit; the input end of the main control board card is connected with the output end of an upper computer; the output end of the main control board card is connected with the command input end of the power conversion circuit; the power conversion circuit converts power supply signals into working electric signals according to a control command; and the electricity output end of the power conversioncircuit is connected with the first end of the load resistor; the second end of the load resistor is connected with the power supply voltage input end of the electrical system; and the load resistor operates under the working electrical signals; and the heating power of the load resistor is equal to power to be simulated. With the load simulation device provided by the embodiments of the inventionadopted, the substitutability of the constant power load of a more electric aircraft can be improved, and the design period of the electrical system of the more electric aircraft can be shortened.

Description

technical field [0001] The invention relates to the technical field of multi-electric aircraft, in particular to a load simulation device. Background technique [0002] With the development of electrical control technology, the electrical system has gradually replaced the traditional hydraulic system and is used in more electric aircraft to provide power for the environmental control system, braking system and steering gear system of more electric aircraft. [0003] Multi-electric aircraft generally include low voltage (such as 28V), high voltage (such as 270V and 540V, etc.), DC, AC, constant power and non-constant power and other loads. As far as the constant power loads in multi-electric aircraft are concerned, before using the electrical system to provide power for them, it is usually necessary to construct an electrical system that supplies power to the one or several constant power loads, and to add the one or several constant power loads Afterwards, the working state...

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a load simulation device to solve the technical problems in the prior art that the constant power load in the multi-electric aircraft is poorly replaceable and the design cycle of the electrical system of the multi-electric aircraft is long

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