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Method for setting parameters of ECM motor replacing PSC motor

A technology of motor parameters and setting methods, which is applied in the direction of AC motor control, electronic commutation motor control, motor generator testing, etc., can solve problems such as low efficiency and low efficiency, and achieve the effect of simple and convenient on-site debugging

Active Publication Date: 2015-03-25
ZHONGSHAN BROAD OCEAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the air conditioner evaporator coil requires higher airflow than the furnace heat exchanger, the fan motor runs at a lower RPM during furnace operation, which is inefficient if the furnace control board had a dedicated relay to Controls continuous fan mode, during continuous fan "ON" operation, the motor runs at a lower speed for least efficiency

Method used

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  • Method for setting parameters of ECM motor replacing PSC motor
  • Method for setting parameters of ECM motor replacing PSC motor
  • Method for setting parameters of ECM motor replacing PSC motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Embodiment one: if Figure 4 and Image 6 As shown, a method for setting parameters of an ECM motor that replaces an outdoor PSC motor, the ECM motor has a stator assembly, a rotor assembly, a casing assembly and a motor controller, and the motor controller includes a power circuit, a microprocessor , inverter circuit and voltage measurement circuit, the voltage measurement circuit measures the AC input voltage Vac of the external input power supply, the power supply circuit supplies power to each part of the circuit, the voltage measurement circuit inputs the measured voltage signal into the microprocessor, and the microprocessor controls the drive of the inverter circuit Stator assembly, is characterized in that: it comprises the steps:

[0056] Step 1) Power on the motor and detect the AC input voltage Vac;

[0057] Step 2) If Vac>Vset1 AC, the motor will run in the normal working state, that is, run the motor according to the stored and recorded steering data and ...

Embodiment 2

[0070] Embodiment two: if Figure 5 and Figure 7 As shown, a method for setting parameters of an ECM motor that replaces an outdoor PSC motor, the ECM motor has a stator assembly, a rotor assembly, a casing assembly and a motor controller, and the motor controller includes a power circuit, a microprocessor , an inverter circuit and a voltage measurement circuit, the voltage measurement circuit measures the DC bus voltage Vdc at the output of the power supply circuit, the power supply circuit supplies power to each part of the circuit, the voltage measurement circuit inputs the measured voltage signal into the microprocessor, and the microprocessor controls the drive of the inverter circuit Stator assembly, is characterized in that: it comprises the steps:

[0071] Step 1) Power on the motor and detect the DC bus voltage Vdc;

[0072] Step 2) If Vdc>Vset3 DC, the motor will run in the normal working state, that is, run the motor according to the stored and recorded steering ...

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Abstract

The invention relates to a method for setting parameters of an ECM motor replacing a PSC motor. The method includes the following steps that: the motor is electrified, and DC bus voltage Vdc or AC input voltage Vac is detected; if the DC bus voltage Vdc or AC input voltage Vac is greater than a certain set value, the motor operates according to a normal working state; if the DC bus voltage Vdc or AC input voltage Vac is smaller than the set value, the motor enters rotation direction and speed programming states, wherein the programming states include a programming state 1, a programming state 2, a programming state 3 and a programming state 4, wherein the programming state 1 includes the steps of setting a rotation direction as CW and setting a rotation speed as H, the programming state 2 includes the steps of setting the rotation direction as CW and setting the rotation speed as L, and the programming state 3 includes the steps of setting the rotation direction as CCW and setting the rotation speed as L, and the programming state 4 includes the steps of setting the rotation direction as CCW and setting the rotation speed as H; and if a user switches off a power source at a certain programming state, it indicates that the user thinks the state is proper, and rotation direction data and rotation speed data which are corresponding to the programming state are stored and recorded so as to be adopted as the normal operation parameter of the motor. With the method adopted, the debugging of the ECM motor is very simple and convenient, and wide application of the ECM motor can be benefitted.

Description

technical field [0001] The invention relates to a parameter setting method of an ECM motor replacing a PSC motor. Background technique [0002] refer to figure 1 , showing a fixed speed PSC motor used in a residential HVAC (heating ventilation and air conditioning system) system. figure 1 Take an indoor unit load as an example, but this patent is also applicable to the application of outdoor units. The motor has four winding gear taps to demodulate two heating fan speeds and two cooling fan speeds. Fan speed is controlled by the furnace control board, which is equipped with cooling / heating relays, low / high cooling relays and low / high heating relays. Other HVAC systems include two heating stages and a single cooling stage, or some other combination of heating and cooling speeds. [0003] PSC motors are reasonably efficient when run at high speeds and can drop to the 20% range when run at low speeds. Because the air conditioner evaporator coil requires higher airflow than...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/00G01R31/34
CPCH02P6/06H02P25/04H02P23/20H02P23/24H02P21/20H02P21/28
Inventor 赵勇
Owner ZHONGSHAN BROAD OCEAN