A method for starting and managing the electrical load of a multi-electric aircraft
A technology of electrical load and management method, which is applied in the field of aviation electrical engineering, can solve the problem that the load start-up management method cannot meet the requirements, and achieve the effect of reducing adverse effects and improving reliability and stability
Active Publication Date: 2017-06-27
南京兴航动力科技有限公司
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Problems solved by technology
Therefore, conventional load startup management methods cannot meet the requirements
Method used
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[0046] Below in conjunction with accompanying drawing, a kind of electric load starting management method of multi-electric aircraft that the present invention proposes is described in detail:
[0047] figure 1 It is a load characteristic diagram in which the superimposed power of three loads started at the same time is less than the peak power limit. 1, 2, and 3 in the figure represent the power characteristic curves of loads 1, 2, and 3 respectively, and P limit is the peak power limit. figure 1 The middle dotted line is the superimposed power, and the superimposed power of three loads starting at the same time is less than the peak power limit P limit , so the loads can be started simultaneously. figure 2 is the load characteristic diagram where the maximum value of the power characteristic curve of the load exceeds the peak power limit; where the maximum value of the power characteristic curve of load 3 exceeds the peak power limit P limit , remove load 3, and only st...
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The invention provides an electrical load starting management method for a more electric aircraft. If all turn-on loads are started at the same time, the generated superposing power is smaller than the peak value limit, and then all the turn-on loads can be directly started; if the power when the load is individually started is larger than the peak value power limit, the load can be removed. The turn-on sequence of the load can be determined according to the length of the starting time. With the peak value power limit being the constraint condition, and the shortest of total starting time being the object, the load starting time of the turn-on load is adjusted, and the starting management of the load is conducted. The electrical load starting management method for a more electric aircraft is advantageous in that under the prerequisite that the reliable power supply of the electric load of the more electric aircraft can be ensured, the shortest starting time can be obtained, and the unfavorable influence of load adding on power grid can be reduced; the response process of the whole electric power system can be shortened, and the reliability and stability of the power supply system can be improved.
Description
technical field [0001] The invention belongs to the technical field of aviation electrical engineering, and in particular relates to a start-up management method for electrical loads of multi-electric aircraft. Background technique [0002] A multi-electric aircraft is an aircraft that uses electric energy to replace secondary energy sources such as hydraulic energy, pneumatic energy, and mechanical energy on traditional aircraft. Therefore, the electrical loads on a multi-electric aircraft have the characteristics of various types, high power, and complex control and management. There are two kinds of electrical loads, steady-state characteristics and transient characteristics. The transient impact current and impact power of resistive and inductive loads are less than or equal to the steady-state power, and have little impact on the aircraft power system. However, when capacitive loads and motor loads are started, voltage and power impacts will be caused, which will affect...
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IPC IPC(8): H02J7/00
Inventor 杨善水吴俊杰
Owner 南京兴航动力科技有限公司