Motor acceleration method, motor control method, motor and industrial ceiling fan

Abstract

The invention discloses a motor acceleration method, which relates to a motor technology. The method comprises the following steps: acquiring a preset acceleration mode set suitable for the motor typeand load size, wherein the acceleration mode set comprises acceleration modes P1, P2,..., Pn from weak to strong and the motor is accelerated in the initial acceleration mode P1; obtaining an instantaneous angular velocity [omega]n at the time of motor acceleration Tn every preset time t1; if the instantaneous angular velocity [omega]n is greater than a standard angular velocity [omega]r, the motor stopping accelerating and running at the standard angular velocity [omega]r; if the instantaneous angular velocity [omega]n is smaller than a standard angular velocity [omega]0, calculating the angular acceleration [beta]n at current time; if the angular acceleration [beta]n is smaller than a standard angular acceleration [beta]r, increasing the acceleration intensity from the acceleration modePn to the acceleration mode Pn+1; if the angular acceleration [beta]n is greater than the standard angular acceleration [beta]r, decreasing the acceleration intensity from the acceleration mode Pn tothe acceleration mode Pn-1. When the target speed is not reached, the angular acceleration is maintained in the range of avoiding mechanical damage as the speed increases, and the acceleration is rapid and safe.

Description

technical field

[0001] The invention relates to motor technology, more specifically, it relates to a motor acceleration method, a motor control method, a motor and an industrial ceiling fan. Background technique

[0002] Industrial ceiling fans (also known as "industrial large fans" in the north), with a maximum diameter of 7.3 meters, covering an area of ​​150 square meters, and a power of up to 1.5KW. It can achieve natural ventilation and super large coverage area, which is the solution to cool down the open space in summer.

[0003] At present, the Chinese patent application number 201120266738.4 discloses a control device for industrial ceiling fans, which includes a control cabinet with a cabinet door, a frequency converter and an air switch are installed in the control cabinet, and two PGs are installed at the lower end of the control cabinet. There is a power switch on the right side of the control cabinet, the control button of the power switch is located outside t...

Examples

Embodiment 1

[0077] A motor acceleration method, referring to figure 1 , when receiving the motor acceleration signal, the motor starts to accelerate, including the following steps:

[0078] Step S101: Obtain a preset acceleration mode set suitable for the motor model and load size. The acceleration mode set contains acceleration modes P1, P2, ..., Pn from weak to strong, and accelerate the motor with the initial acceleration mode P1. motor;

[0079] Step S102: Obtain the instant angular velocity ωn at the moment of motor acceleration Tn at intervals of preset time t1;

[0080] Step S103: comparing the magnitude of the instant angular velocity ωn and the standard angular velocity ωr;

[0081] Step S104: If the immediate angular velocity ωn is greater than the standard angular velocity ωr, the motor stops accelerating and runs at the standard angular velocity ωr;

[0082] Step S105: If the immediate angular velocity ωn is less than the standard angular velocity ω0, calculate the angular ...

Embodiment 2

[0086] A motor control method, referring to Figure 1 to Figure 3 , including the motor acceleration method in Embodiment 1, and also includes a motor deceleration method and a motor acceleration / deceleration judging method.

[0087] Motor acceleration / deceleration judgment methods include:

[0088] Step S201: Acquiring a rotational speed adjustment signal and a speed detection signal;

[0089] Step S202: comparing the target rotational speed corresponding to the rotational speed adjustment signal with the immediate rotational speed corresponding to the rotational speed detection signal;

[0090] Step S203: if the target speed is greater than the instant speed, output the motor acceleration signal, and convert the speed adjustment signal into a standard angular acceleration βr;

[0091] Step S204: If the target rotational speed is less than the immediate rotational speed, output a motor deceleration signal, and convert the rotational speed adjustment signal into an angular a...

Embodiment 3

[0102] a motor, see Figure 4 , including a processor 1 and a memory 2, the memory 2 stores an instruction set for the processor 1 to call to realize the following functions:

[0103] First, it is judged whether the motor is accelerating or decelerating. Specifically, the speed adjustment signal and the speed detection signal are obtained, and the target speed corresponding to the speed adjustment signal is compared with the instantaneous speed corresponding to the speed detection signal;

[0104] If the target speed is greater than the instant speed, output the motor acceleration signal, and convert the speed adjustment signal into a standard angular acceleration βr;

[0105] If the target speed is less than the instant speed, the motor deceleration signal is output, and the speed adjustment signal is converted into the angular acceleration threshold βs.

[0106] When accelerating, firstly, based on the motor acceleration signal, a preset acceleration mode set suitable for t...

technical field

[0001] The invention relates to motor technology, more specifically, it relates to a motor acceleration method, a motor control method, a motor and an industrial ceiling fan. Background technique

[0002] Industrial ceiling fans (also known as "industrial large fans" in the north), with a maximum diameter of 7.3 meters, covering an area of ​​150 square meters, and a power of up to 1.5KW. It can achieve natural ventilation and super large coverage area, which is the solution to cool down the open space in summer.

[0003] At present, the Chinese patent application number 201120266738.4 discloses a control device for industrial ceiling fans, which includes a control cabinet with a cabinet door, a frequency converter and an air switch are installed in the control cabinet, and two PGs are installed at the lower end of the control cabinet. There is a power switch on the right side of the control cabinet, the control button of the power switch is located outside t...

Examples

Embodiment 1

[0077] A motor acceleration method, referring to figure 1 , when receiving the motor acceleration signal, the motor starts to accelerate, including the following steps:

[0078] Step S101: Obtain a preset acceleration mode set suitable for the motor model and load size. The acceleration mode set contains acceleration modes P1, P2, ..., Pn from weak to strong, and accelerate the motor with the initial acceleration mode P1. motor;

[0079] Step S102: Obtain the instant angular velocity ωn at the moment of motor acceleration Tn at intervals of preset time t1;

[0080] Step S103: comparing the magnitude of the instant angular velocity ωn and the standard angular velocity ωr;

[0081] Step S104: If the immediate angular velocity ωn is greater than the standard angular velocity ωr, the motor stops accelerating and runs at the standard angular velocity ωr;

[0082] Step S105: If the immediate angular velocity ωn is less than the standard angular velocity ω0, calculate the angular ...

Embodiment 2

[0086] A motor control method, referring to Figure 1 to Figure 3 , including the motor acceleration method in Embodiment 1, and also includes a motor deceleration method and a motor acceleration / deceleration judging method.

[0087] Motor acceleration / deceleration judgment methods include:

[0088] Step S201: Acquiring a rotational speed adjustment signal and a speed detection signal;

[0089] Step S202: comparing the target rotational speed corresponding to the rotational speed adjustment signal with the immediate rotational speed corresponding to the rotational speed detection signal;

[0090] Step S203: if the target speed is greater than the instant speed, output the motor acceleration signal, and convert the speed adjustment signal into a standard angular acceleration βr;

[0091] Step S204: If the target rotational speed is less than the immediate rotational speed, output a motor deceleration signal, and convert the rotational speed adjustment signal into an angular a...

Embodiment 3

[0102] a motor, see Figure 4 , including a processor 1 and a memory 2, the memory 2 stores an instruction set for the processor 1 to call to realize the following functions:

[0103] First, it is judged whether the motor is accelerating or decelerating. Specifically, the speed adjustment signal and the speed detection signal are obtained, and the target speed corresponding to the speed adjustment signal is compared with the instantaneous speed corresponding to the speed detection signal;

[0104] If the target speed is greater than the instant speed, output the motor acceleration signal, and convert the speed adjustment signal into a standard angular acceleration βr;

[0105] If the target speed is less than the instant speed, the motor deceleration signal is output, and the speed adjustment signal is converted into the angular acceleration threshold βs.

[0106] When accelerating, firstly, based on the motor acceleration signal, a preset acceleration mode set suitable for t...

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