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A processor and processing unit technology, used in starter parts and other directions, to solve problems such as demagnetization and vibration of motors and compressors
Active Publication Date: 2018-12-18
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Abstract
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[0008] Embodiments of the present invention provide a start-up control method, device, and processor to at least solve the tec
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Embodiment 1
[0030] According to an embodiment of the present invention, a method embodiment of a start-up control method is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
[0031] figure 2 is a startup control method according to an embodiment of the present invention, such as figure 2 As shown, the method includes the following steps:
[0032] Step S202, determining a first target current value and a first target rotational speed of the target device.
[0033] Wherein, the target device includes at least one of the following: a compressor and a motor, and the target current values in this embodiment are all current values of alternating current.
[0034] Step S204, afte...
Embodiment 2
[0049] According to an embodiment of the present invention, an embodiment of a startup control device is provided, Figure 4 is a starting control device according to an embodiment of the present invention, such as Figure 4 As shown, the device includes:
[0050] a processing unit 40, configured to determine a first target current value and a first target rotational speed of the target device;
[0051] A control unit 42, configured to control the target device to run for a first preset time at the first target current value and the first target speed;
[0052] The processing unit 40 is further configured to determine a second target current value and a second target current value of the target device after the target device operates at the first target current value and the first target speed Two target speeds, wherein the second target speed is greater than the first target speed;
[0053] The control unit 42 is further configured to control the target device to run for a...
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Abstract
The invention discloses a startup control method and a device, a processor. The method comprises the following steps: determining a first target current value and a first target rotational speed of atarget device; Determining a second target current value and a second target rotational speed of the target device after controlling the target device to operate at the first target current value andthe first target rotational speed for a first preset time, wherein the second target rotational speed is greater than the first target rotational speed; After controlling the target device to run thesecond preset time with the second target current value and the second target rotational speed, if the operation parameters of the target device satisfy the preset switching condition, the target device is switched to the closed-loop operation. The invention solves the technical problems of demagnetization and vibration of motor and compressor caused by long-time large direct current electric positioning.
Description
technical field [0001] The present invention relates to the field of equipment control, in particular, to a start control method and device, and a processor. Background technique [0002] Generally speaking, motors and compressors use a three-stage start-up strategy, that is, positioning-open-loop-closed-loop start-up control strategy. Typical current waveforms are as follows: figure 1 As shown, the startup control strategy is as follows: [0003] Positioning: Applying a DC current to the windings pulls the rotor position onto the d-axis. Generally speaking, the greater the positioning current and the longer the positioning time, the more accurate the positioning will be. However, long-term large direct current will cause demagnetization and other damage to the motor and compressor, and the motor and compressor will vibrate significantly during positioning. . [0004] Open loop: Given the target speed Speed_Open and the target current I_Open, the compressor runs at a fixe...
Claims
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Application Information
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IPC IPC(8): H02P1/04
CPCH02P1/04
Inventor 程海珍张东盛徐常升高明世
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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