Experimental Estimation Method of Moment of Inertia of Motor in Electric Drive System
A moment of inertia and electric transmission technology, applied in the direction of electronic commutation motor control, motor generator control, control of electromechanical transmission devices, etc., can solve problems such as limited application range and non-generality
Active Publication Date: 2016-01-20
朱淼 +1
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This invention is also not general, and the scope of application is not wide
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[0034] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0035] like figure 1 , figure 2 , image 3 As shown, this embodiment provides an experimental estimation method for the moment of inertia of the motor in the electric drive system. In the motor drive system, the method of vector control is often adopted, and the high-precision control effect is realized through the double closed-loop structure of the current inner loop and the speed outer loop. The current inner loop is used for the decoupling control of the excitation current and the torque c...
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The invention provides an experiment estimation method of motor rotational inertia in an electrical drive system. According to the method, based on a motor vector control principle, the method that a current inner ring parameter is determined first, and then a rotating speed outer ring parameter is designed is used for designing a control system so that the high-precision control effect can be achieved; the control parameter of a current inner ring is related to the parameter of the motor system itself, and the parameter of a rotating speed outer ring is related to the rotational inertia of an entire transmission chain. The key point of the design of the rotating speed outer ring is how to obtain the rotational inertia, and the method specifically comprises the steps of determining the current inner ring parameter of the control system and experiment estimation of the rotational inertia. The experiment estimation method provides a parameter setting basis for the high-precision motor control system, improves the research and development efficiency of the control system and is used as an important constituent part for self-adaptation parameter identification in motor control.
Description
technical field [0001] The invention relates to the application of motor motion control in the field of power electronics, in particular to an experimental estimation method for the moment of inertia of a motor in an electric drive system. Background technique [0002] Electric transmission systems are widely used in human production and life, such as hoist systems, motor systems, ship propulsion systems, power generation systems, etc. At present, high-precision electric drive control systems usually use vector control technology, which requires accurate understanding of motor parameters. However, under normal circumstances, the important parameter of the motor's moment of inertia is not clear, and it is necessary to estimate the moment of inertia accurately before the design of the control system. [0003] The moment of inertia is the measure of the inertia of a rigid body during its rotation. It is related to factors such as the total mass, shape, and position of the rota...
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IPC IPC(8): H02P21/14
Inventor 朱淼王鹏
Owner 朱淼