Test Method Based on Constant Torque Control

A test method and constant torque technology, applied in the direction of motor generator test, measuring electricity, measuring device, etc., can solve the problem of long test cycle

Active Publication Date: 2021-04-09
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of test method based on constant torque control, to solve the problem of long test cycle existing in the prior art

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  • Test Method Based on Constant Torque Control
  • Test Method Based on Constant Torque Control
  • Test Method Based on Constant Torque Control

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Embodiment Construction

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] Please also refer to figure 1 , the test method based on constant torque control provided by the embodiment of the present invention is now described. The test method based on constant torque control includes the following steps (take the wind disk as an example here): first input the model of the unit, and obtain the target air volume Q and the model parameters of the unit according to the preset function; then, calculate the system Wind resistance K1 and dynamic pressure K3, measure static pressure K2; calculate motor input power P, motor torque T; detect...

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Abstract

The invention provides a test method based on constant torque control, which includes the following steps: input the model of the unit, obtain the target air volume Q and the model parameters of the unit according to a preset function; calculate the system wind resistance K1 and dynamic pressure K3, measure Static pressure K2; calculate the motor input power P, motor torque T; detect the real-time air volume Q1 and motor real-time input power P1 after the unit runs for t time; judge whether the motor torque T meets the requirements according to the relationship between Q1 and Q, if so, Then the simulation test is accurate. In the test method based on constant torque control provided by the present invention, the preset function is input into the test tool, and the model parameters are directly input into the test tool during the test, and the preset function can be directly called to obtain the test requirements according to the model of the unit. parameters. The matching test of the units under test under different static pressures and different system schemes is realized, which greatly shortens the test cycle, improves the efficiency of the test, and accelerates the introduction of new products.

Description

technical field [0001] The invention belongs to the technical field of inverter control, and more specifically relates to a test method based on constant torque control. Background technique [0002] As the most widely used product in central air-conditioning, the fan coil unit has a fast product update speed. With the call of the country for energy conservation and emission reduction, DC inverter products have gradually become the mainstream trend. [0003] Various manufacturers are also constantly exploring new markets and making every effort to develop new DC series products, such as DC constant speed control fan discs, DC constant torque control fan discs, and other series of models. Work is carried out in accordance with conventional product development ideas based on actual measurement data. Repeated testing and coordination of experimental resources have long cycle times, heavy workload, and low efficiency, resulting in a serious lag in product launch. If designers ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
CPCG01R31/343
Inventor 李慧慧迟亚玲高棋彬姚晓斌孟亚军
Owner GREE ELECTRIC APPLIANCES INC
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