WO2014019128A1 - Method for staring permanent magnet synchronous motor - Google Patents
Method for staring permanent magnet synchronous motor Download PDFInfo
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- WO2014019128A1 WO2014019128A1 PCT/CN2012/079396 CN2012079396W WO2014019128A1 WO 2014019128 A1 WO2014019128 A1 WO 2014019128A1 CN 2012079396 W CN2012079396 W CN 2012079396W WO 2014019128 A1 WO2014019128 A1 WO 2014019128A1
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- motor
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- starting voltage
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/46—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor
- H02P1/52—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual synchronous motor by progressive increase of frequency of supply to motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/02—Details of starting control
- H02P1/029—Restarting, e.g. after power failure
Definitions
- the invention relates to a method for starting a permanent magnet synchronous motor.
- the permanent magnet synchronous motor used in the conventional fan system has a relatively large starting voltage in order to ensure normal starting operation under reverse wind blow reverse operation.
- configuring the starting voltage in this way will result in a large starting shock during normal operation, damage to the blades and shafts, current sensing resistors, IPM, etc., which will reduce the life of these components.
- the object of the present invention is to provide a starting method for a permanent magnet synchronous motor, which can automatically configure starting parameters according to the current state of the motor, and reduce the number of large current surges under the condition of ensuring normal starting of the motor, thereby improving product life.
- a starting method of a permanent magnet synchronous motor comprises a motor controller, the motor controller comprises a microprocessor, a speed detecting unit and an inverter unit INVERTER, and the state parameter when the motor is started is detected by the speed detecting unit
- the microprocessor calculates the steering and rotation speed of the motor at startup, and then judges the state of the motor; if the motor is in a static state when starting, the microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor according to the normal starting voltage V0; When the motor starts, it is in the downwind state.
- the microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor according to the wind start voltage VI.
- the downwind start voltage VI is smaller than the normal starting voltage V0. If the motor starts, it is in the upwind state.
- the processor controls the inverter unit to drive the motor, so that the motor starts the motor according to the upwind starting voltage V2, and the upwind starting voltage V2 is greater than the normal starting voltage V0;
- the normal starting voltage V0 is the starting voltage when the motor is stationary, and the normal starting voltage V0 Equal to the microprocessor output P medical signal when the motor is stationary Multiplying T0% by the bus voltage Vdc;
- the downwind starting voltage VI is equal to the duty ratio Tl% of the microprocessor output P medical signal multiplied by the bus voltage Vdc when the downwind starting state;
- the upwind starting voltage V2 is equal to the upwind rotating state when the microprocessor outputs
- the duty cycle T2% of the P medical signal is multiplied by the bus voltage Vdc.
- the speed detecting unit described above is a Hall sensor detecting unit or a phase current detecting unit or a counter electromotive force detecting circuit.
- the invention utilizes a function of automatically configuring the starting parameters according to the current state of the motor, and configures a small starting voltage when the motor is stationary, and runs in the running direction of the motor. Configure a smaller voltage and configure a larger startup voltage during retrograde. That is to reduce the number of large current surges while ensuring the normal start of the motor. Thereby improving product life.
- Figure 1 is a circuit block diagram of a permanent magnet synchronous motor of the present invention
- Figure 2 is a specific implementation structure of Figure 1;
- FIG. 3 is another embodiment structure of a specific implementation structure of FIG.
- Figure 4 is a control flow chart of the present invention.
- the permanent magnet synchronous motor of the present invention comprises a motor controller and a motor
- the motor controller comprises a microprocessor, a speed detecting unit and an inverter unit (INVERTER), and the motor comprises a casing, a stator, a rotor, etc.
- the detection unit detects the state parameter when the motor is started, and the microprocessor calculates the steering and rotation speed of the motor at the start and then determines the state of the motor.
- the microprocessor of the present invention is a single-chip MCU, and the rotor position data is calculated by real-time phase current.
- the phase current detecting unit mainly includes a resistor R20 and an A/D conversion, and is controlled by a vector sensor without a position sensor. In the mode, only the phase current of the motor winding is detected and the rotor position data, the rotational speed data and the steering are calculated and sent to the microprocessor.
- the microprocessor outputs the P medical signal using the inverter unit (INVERTER) driver chip HVIC and a plurality of IGBT switches.
- IVERTER inverter unit
- the speed detecting unit is a phase current detecting unit.
- the speed detecting unit is a Hall sensor detecting unit
- the Hall sensor detecting unit measures the position signal of the rotor, including the Hall sensor and the A/D conversion, and calculates the rotor position data, the rotational speed data, and the steering transmission.
- the microprocessor outputs the P medical signal using the inverter chip (INVERTER) driver chip HVIC and a plurality of IGBT switches Ql, Q2, Q3, Q4, Q5, Q6 to control the motor winding current, the bus voltage of each winding For Vdc.
- IVERTER inverter chip
- the permanent magnet synchronous motor includes a motor controller, and the motor controller includes a microprocessor, a speed detecting unit and an inverter unit, wherein: the speed detecting unit detects The state parameter when the motor starts, the microprocessor calculates the steering and rotation speed of the motor at startup and then judges the state of the motor.
- the microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor at the normal starting voltage V0;
- the microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor according to the downwind starting voltage VI, and the downwind starting voltage VI is smaller than the normal starting voltage V0; if the motor starts to be in the upwind state, The microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor according to the upwind starting voltage V2, and the upwind starting voltage V2 is greater than the normal starting voltage V0;
- the normal starting voltage V0 is the starting voltage when the motor is stationary, the normal starting voltage V0 is equal to the duty ratio T0% of the microprocessor output P medical signal when the motor is stationary, multiplied by the bus voltage Vdc;
- the downwind starting voltage VI is equal to the duty ratio Tl% of the microprocessor output P medical signal multiplied by the bus voltage when the downwind is turned Vdc;
- the upwind starting voltage V2 is equal to the duty cycle T2% of the microprocessor output P medical signal when the wind is in the upwind state multipli
- control program module is provided in the microprocessor of the present invention, and the control process is as follows: 1) Start, speed detection, mainly use the speed detecting unit to detect whether the motor rotates, and the speed detecting unit detects the state parameter when the motor starts, the microprocessor calculates the steering and rotating speed of the motor at the start and then judges the state of the motor;
- the adjustment of the starting voltage is actually the microprocessor's adjustment of the duty cycle of the output P medical signal, which is very easy to implement.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention relates to a method for staring a permanent magnet synchronous motor, and comprises: a speed detection unit detecting a state of the motor when being started; if the motor is in a stationary state when being started, a micro-controller controlling an inverter unit to drive the motor, so that the motor is started for operation at a normal starting voltage (V0); if the motor is in a downwind turning state when being started, the micro-controller controlling the inverter unit to drive the motor, so that the motor is started for operation at a downwind starting voltage (V1), the downwind starting voltage (V1) being less than the normal starting voltage (V0); and if the motor is in an upwind turning state when being started, the micro-controller controlling the inverter unit to drive the motor, so that the motor is started for operation at an upwind starting voltage (V2), the upwind starting voltage (V2) being greater than the normal starting voltage (V0). The method can automatically configure the starting parameters according to the current state of the motor, and reduce the number of impact times at a high current in a case where the motor is ensured to be normally started, thereby improving the service life of the product.
Description
一种永磁同步电机的启动方法 Starting method of permanent magnet synchronous motor
技术领域 ： Technical field:
本发明涉及一种永磁同步电机的启动方法。 The invention relates to a method for starting a permanent magnet synchronous motor.
背景技术 ： Background technique :
传统风机系统用的永磁同步电机， 为了保证在逆风吹动反转运行下 能够正 常启动运行， 都将启动电压配置得比较大。 然而， 这样配置启动电压， 会导致 在正常时启动冲击较大， 对风叶和转轴、 电流检测电阻、 IPM等部件都有损伤， 降低了这些部件的寿命。 The permanent magnet synchronous motor used in the conventional fan system has a relatively large starting voltage in order to ensure normal starting operation under reverse wind blow reverse operation. However, configuring the starting voltage in this way will result in a large starting shock during normal operation, damage to the blades and shafts, current sensing resistors, IPM, etc., which will reduce the life of these components.
发明内容 ： Summary of the invention:
本发明的目的是提供一种永磁同步电机的启动方法， 它能够根据电机当前 状态， 自动配置启动参数， 在保证电机正常启动的情况下， 减少大电流冲击次 数， 从而提高产品寿命。 The object of the present invention is to provide a starting method for a permanent magnet synchronous motor, which can automatically configure starting parameters according to the current state of the motor, and reduce the number of large current surges under the condition of ensuring normal starting of the motor, thereby improving product life.
本发明的目的是通过下述技术方案予以实现的。 The object of the present invention is achieved by the following technical solutions.
一种永磁同步电机的启动方法， 所述的永磁同步电机包括电机控制器， 电 机控制器包括微处理器、速度检测单元和逆变单元 INVERTER, 通过速度检测单 元检测电机启动时的状态参数， 微处理器计算出启动时电机的转向和转速， 然 后判断电机的状态； 若电机启动时处于静止状态， 微处理器控制逆变单元驱动 电机， 使电机按正常启动电压 V0启动电机运行； 若电机启动时处于顺风转动状 态，微处理器控制逆变单元驱动电机，使电机按顺风启动电压 VI启动电机运行， 顺风启动电压 VI小于正常的启动电压 V0; 若电机启动时处于逆风转动状态， 微 处理器控制逆变单元驱动电机， 使电机按逆风启动电压 V2启动电机运行， 逆风 启动电压 V2大于正常的启动电压 V0; 所述的正常启动电压 V0是电机静止时的 启动电压，正常启动电压 V0等于电机静止时微处理器输出 P醫信号的占空比 T0% 乘以母线电压 Vdc; 顺风启动电压 VI等于顺风转动状态时微处理器输出 P醫信 号的占空比 Tl%乘以母线电压 Vdc; 逆风启动电压 V2等于逆风转动状态时微处 理器输出 P醫信号的占空比 T2%乘以母线电压 Vdc。
上述所述的速度检测单元检测电机的转速 N,若电机启动时处于顺风转动状 态，顺风启动电压 Vl=-a X N+V0;若电机启动时处于逆风转动状态，逆风启动电压 V2=a X N+V0;系数 a是实际测量电机启动数据而得到的。 A starting method of a permanent magnet synchronous motor, the permanent magnet synchronous motor comprises a motor controller, the motor controller comprises a microprocessor, a speed detecting unit and an inverter unit INVERTER, and the state parameter when the motor is started is detected by the speed detecting unit The microprocessor calculates the steering and rotation speed of the motor at startup, and then judges the state of the motor; if the motor is in a static state when starting, the microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor according to the normal starting voltage V0; When the motor starts, it is in the downwind state. The microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor according to the wind start voltage VI. The downwind start voltage VI is smaller than the normal starting voltage V0. If the motor starts, it is in the upwind state. The processor controls the inverter unit to drive the motor, so that the motor starts the motor according to the upwind starting voltage V2, and the upwind starting voltage V2 is greater than the normal starting voltage V0; the normal starting voltage V0 is the starting voltage when the motor is stationary, and the normal starting voltage V0 Equal to the microprocessor output P medical signal when the motor is stationary Multiplying T0% by the bus voltage Vdc; the downwind starting voltage VI is equal to the duty ratio Tl% of the microprocessor output P medical signal multiplied by the bus voltage Vdc when the downwind starting state; the upwind starting voltage V2 is equal to the upwind rotating state when the microprocessor outputs The duty cycle T2% of the P medical signal is multiplied by the bus voltage Vdc. The speed detecting unit described above detects the rotation speed N of the motor, and if the motor is in the downwind rotation state when starting the motor, the downwind starting voltage Vl=-a X N+V0; if the motor starts in the upwind rotation state, the upwind starting voltage V2=a X N+V0; the coefficient a is obtained by actually measuring the motor start data.
上述所述的速度检测单元是霍尔传感器检测单元或者是相电流检测单元或 者是反电动势检测电路。 The speed detecting unit described above is a Hall sensor detecting unit or a phase current detecting unit or a counter electromotive force detecting circuit.
本发明与现有技术相比具有如下优点： 本发明利用设计了一种能够根据电 机当前状态， 自动配置启动参数的功能， 在电机静止时配置较小的启动电压， 在顺着电机运行方向运行时配置更小的电压， 在逆行时， 配置较大的启动电压。 也就是在保证电机正常启动的情况下， 减少大电流冲击次数。 从而提高产品寿 命。 Compared with the prior art, the invention has the following advantages: The invention utilizes a function of automatically configuring the starting parameters according to the current state of the motor, and configures a small starting voltage when the motor is stationary, and runs in the running direction of the motor. Configure a smaller voltage and configure a larger startup voltage during retrograde. That is to reduce the number of large current surges while ensuring the normal start of the motor. Thereby improving product life.
附图说明： BRIEF DESCRIPTION OF THE DRAWINGS:
图 1是本发明的永磁同步电机的电路方框图； Figure 1 is a circuit block diagram of a permanent magnet synchronous motor of the present invention;
图 2是图 1一种具体实施结构； Figure 2 is a specific implementation structure of Figure 1;
图 3是图 1一种具体实施结构另一实施结构 3 is another embodiment structure of a specific implementation structure of FIG.
图 4是本发明的控制流程图。 Figure 4 is a control flow chart of the present invention.
具体实施方式： detailed description:
下面通过具体实施例并结合附图对本发明作进一步详细的描述： The present invention will be further described in detail below through the specific embodiments and the accompanying drawings:
如图 1所示， 本发明的永磁同步电机包括电机控制器和电机， 电机控制器 包括微处理器、 速度检测单元和逆变单元 （INVERTER ), 电机包括外壳、 定子、 转子等； 通过速度检测单元检测电机启动时的状态参数， 微处理器计算出启动 时电机的转向和转速然后判断电机的状态。 As shown in FIG. 1, the permanent magnet synchronous motor of the present invention comprises a motor controller and a motor, the motor controller comprises a microprocessor, a speed detecting unit and an inverter unit (INVERTER), and the motor comprises a casing, a stator, a rotor, etc.; The detection unit detects the state parameter when the motor is started, and the microprocessor calculates the steering and rotation speed of the motor at the start and then determines the state of the motor.
如图 2 所示， 本发明的微处理器是单片机 MCU, 转子位置数据通过实时相 电流计算得出， 相电流检测单元主要包括电阻 R20和 A/D转换，釆用无位置传感 器的矢量控制的方式， 只检测电机绕组的相电流并计算出转子位置数据、 转速 数据和转向并送到微处理器， 微处理器输出 P醫信号利用逆变单元（INVERTER) 的驱动芯片 HVIC和多个 IGBT开关 Ql、 Q2、 Q3、 Q4、 Q5、 Q6来控制电机绕组电
流， 各绕组的母线电压为 Vdc，电路结构简单， 测量信号少， 连接简单， 简化电 路结构， 进一步降低成本 。 速度检测单元是相电流检测单元。 As shown in FIG. 2, the microprocessor of the present invention is a single-chip MCU, and the rotor position data is calculated by real-time phase current. The phase current detecting unit mainly includes a resistor R20 and an A/D conversion, and is controlled by a vector sensor without a position sensor. In the mode, only the phase current of the motor winding is detected and the rotor position data, the rotational speed data and the steering are calculated and sent to the microprocessor. The microprocessor outputs the P medical signal using the inverter unit (INVERTER) driver chip HVIC and a plurality of IGBT switches. Ql, Q2, Q3, Q4, Q5, Q6 to control motor winding The flow, the bus voltage of each winding is Vdc, the circuit structure is simple, the measurement signal is small, the connection is simple, the circuit structure is simplified, and the cost is further reduced. The speed detecting unit is a phase current detecting unit.
如图 3 所示， 速度检测单元是霍尔传感器检测单元， 霍尔传感器检测单元 测量转子的位置信号， 包括霍尔传感器和 A/D转换， 它并计算出转子位置数据、 转速数据和转向送到微处理器,微处理器输出 P醫信号利用逆变单元（ INVERTER) 的驱动芯片 HVIC和多个 IGBT开关 Ql、 Q2、 Q3、 Q4、 Q5、 Q6来控制电机绕组电 流，各绕组的母线电压为 Vdc。 As shown in Fig. 3, the speed detecting unit is a Hall sensor detecting unit, and the Hall sensor detecting unit measures the position signal of the rotor, including the Hall sensor and the A/D conversion, and calculates the rotor position data, the rotational speed data, and the steering transmission. To the microprocessor, the microprocessor outputs the P medical signal using the inverter chip (INVERTER) driver chip HVIC and a plurality of IGBT switches Ql, Q2, Q3, Q4, Q5, Q6 to control the motor winding current, the bus voltage of each winding For Vdc.
本发明的一种永磁同步电机的启动方法， 所述的永磁同步电机包括电机控 制器， 电机控制器包括微处理器、 速度检测单元和逆变单元， 其特征在于： 通过速度检测单元检测电机启动时的状态参数， 微处理器计算出启动时电机 的转向和转速然后判断电机的状态 A method for starting a permanent magnet synchronous motor according to the present invention, the permanent magnet synchronous motor includes a motor controller, and the motor controller includes a microprocessor, a speed detecting unit and an inverter unit, wherein: the speed detecting unit detects The state parameter when the motor starts, the microprocessor calculates the steering and rotation speed of the motor at startup and then judges the state of the motor.
若电机启动时处于静止状态， 微处理器控制逆变单元驱动电机， 使电机按正 常启动电压 V0启动电机运行； If the motor is at a standstill when starting, the microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor at the normal starting voltage V0;
若电机启动时处于顺风转动状态， 微处理器控制逆变单元驱动电机， 使电机 按顺风启动电压 VI启动电机运行， 顺风启动电压 VI小于正常的启动电压 V0; 若电机启动时处于逆风转动状态， 微处理器控制逆变单元驱动电机， 使电机 按逆风启动电压 V2启动电机运行， 逆风启动电压 V2大于正常的启动电压 V0; 所述的正常启动电压 V0是电机静止时的启动电压， 正常启动电压 V0等于 电机静止时微处理器输出 P醫信号的占空比 T0%乘以母线电压 Vdc; 顺风启动电 压 VI 等于顺风转动状态时微处理器输出 P醫信号的占空比 Tl%乘以母线电压 Vdc;逆风启动电压 V2等于逆风转动状态时微处理器输出 P醫信号的占空比 T2% 乘以母线电压 Vdc。 If the motor is in the downwind state when the motor starts, the microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor according to the downwind starting voltage VI, and the downwind starting voltage VI is smaller than the normal starting voltage V0; if the motor starts to be in the upwind state, The microprocessor controls the inverter unit to drive the motor, so that the motor starts the motor according to the upwind starting voltage V2, and the upwind starting voltage V2 is greater than the normal starting voltage V0; the normal starting voltage V0 is the starting voltage when the motor is stationary, the normal starting voltage V0 is equal to the duty ratio T0% of the microprocessor output P medical signal when the motor is stationary, multiplied by the bus voltage Vdc; the downwind starting voltage VI is equal to the duty ratio Tl% of the microprocessor output P medical signal multiplied by the bus voltage when the downwind is turned Vdc; the upwind starting voltage V2 is equal to the duty cycle T2% of the microprocessor output P medical signal when the wind is in the upwind state multiplied by the bus voltage Vdc.
所述的速度检测单元检测电机的转速 N, 若电机启动时处于顺风转动状态， 顺风启动电压 Vl= -a x N+VO;若电机启动时处于逆风转动状态，逆风启动电压 V2=a X N+VO;系数 a是实际测量电机启动数据而得到的。 The speed detecting unit detects the rotation speed N of the motor. If the motor is in the downwind rotation state when starting the motor, the downwind starting voltage Vl= -ax N+VO; if the motor starts in the upwind rotation state, the upwind starting voltage V2=a X N+ VO; the coefficient a is obtained by actually measuring the motor start data.
如图 4所示， 本发明微处理器里面设置有控制程序模块， 其控制过程如下：
1 ) 开始， 速度检测， 主要利用速度检测单元检测电机是否转动， 通过速度检测 单元检测电机启动时的状态参数， 微处理器计算出启动时电机的转向和转速然 后判断电机的状态； As shown in FIG. 4, the control program module is provided in the microprocessor of the present invention, and the control process is as follows: 1) Start, speed detection, mainly use the speed detecting unit to detect whether the motor rotates, and the speed detecting unit detects the state parameter when the motor starts, the microprocessor calculates the steering and rotating speed of the motor at the start and then judges the state of the motor;
2 )若果是处于逆风转动状态， 进行逆风速度检测， 主要利用速度检测单元检测 电机的转速 N, 直到检测完成； 自动调整启动电压 V2=a x N+V0, 然后启动电机， 电机运行后结束启动程序； 2) If it is in the upwind rotation state, the headwind speed detection is performed, and the speed detecting unit is mainly used to detect the motor speed N until the detection is completed; the starting voltage V2=ax N+V0 is automatically adjusted, and then the motor is started, and the motor is started after the motor is started. Program
3 )若果是处于顺风转动状态， 进行顺风速度检测， 主要利用速度检测单元检测 电机的转速 N, 直到检测完成； 自动调整启动电压 Vl= -a x N+VO, 然后启动电 机， 电机运行后结束启动程序； 3) If it is in the downwind state, perform downwind speed detection, mainly use the speed detecting unit to detect the motor speed N until the detection is completed; automatically adjust the starting voltage Vl= -ax N+VO, then start the motor, and the motor ends starting program;
4 )若电机启动时处于静止状态， 使电机按正常启动电压 V0 启动电机， 电机运 行后结束启动程序； 4) If the motor is at rest when starting, let the motor start the motor according to the normal starting voltage V0, and the motor will finish running after the engine is running;
启动电压的调整，其实就是微处理器调节输出 P醫信号的占空比，非常容易 实现。 The adjustment of the starting voltage is actually the microprocessor's adjustment of the duty cycle of the output P medical signal, which is very easy to implement.
上述实施例为本发明的较佳实施方式，但本发明的实施方式不限于此，其他 任何未背离本发明的精神实质与原理下所作的改变、 修饰、 替代、 组合、 简化, 均为等效的置换方式， 都包含在本发明的保护范围之内。
The above-described embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and scope of the present invention are equivalent. The manner of replacement is included in the scope of protection of the present invention.
Claims
1、 一种永磁同步电机的启动方法， 所述的永磁同步电机包括电机控制器， 电机控制器包括微处理器、 速度检测单元和逆变单元， 其特征在于： 1. A starting method for a permanent magnet synchronous motor. The permanent magnet synchronous motor includes a motor controller. The motor controller includes a microprocessor, a speed detection unit and an inverter unit. It is characterized by:
通过速度检测单元检测电机启动时的状态参数， 微处理器计算出启动时电机 的转向和转速然后判断电机的状态； The speed detection unit detects the status parameters of the motor when it starts, and the microprocessor calculates the direction and speed of the motor when it starts and then determines the status of the motor;
若电机启动时处于静止状态， 微处理器控制逆变单元驱动电机， 使电机按正 常启动电压（V0)启动电机运行； If the motor is in a stationary state when starting, the microprocessor controls the inverter unit to drive the motor so that the motor starts running at the normal starting voltage (V0);
若电机启动时处于顺风转动状态， 微处理器控制逆变单元驱动电机， 使电机 按顺风启动电压（VI)启动电机运行， 顺风启动电压（VI)小于正常的启动电压 (V0) ; If the motor is rotating downwind when starting, the microprocessor controls the inverter unit to drive the motor so that the motor starts running according to the downwind starting voltage (VI), which is smaller than the normal starting voltage (V0);
若电机启动时处于逆风转动状态， 微处理器控制逆变单元驱动电机， 使电机 按逆风启动电压（V2)启动电机运行， 逆风启动电压（V2)大于正常的启动电压 (V0) ; If the motor is rotating against the wind when starting, the microprocessor controls the inverter unit to drive the motor so that the motor starts running according to the headwind starting voltage (V2), which is greater than the normal starting voltage (V0);
所述的正常启动电压（V0)是电机静止时的启动电压， 正常启动电压（V0)等 于电机静止时微处理器输出 P醫信号的占空比 T0%乘以母线电压（ Vdc ); 顺风启 动电压（VI)等于顺风转动状态时微处理器输出 P醫信号的占空比 τι%乘以母线电 压 （Vdc ); 逆风启动电压（V2)等于逆风转动状态时微处理器输出 P醫 信号的占 空比 T2%乘以母线电压 （Vdc )。 The normal starting voltage (V0) is the starting voltage when the motor is stationary. The normal starting voltage (V0) is equal to the duty cycle T0% of the P medical signal output by the microprocessor when the motor is stationary multiplied by the bus voltage (Vdc); tailwind start The voltage (VI) is equal to the duty cycle τι% of the microprocessor output P medical signal in the downwind rotation state multiplied by the bus voltage (Vdc); the headwind starting voltage (V2) is equal to the duty cycle of the microprocessor output P medical signal in the headwind rotation state. The air ratio T2% is multiplied by the bus voltage (Vdc).
2、 根据权利要求 1 所述的一种永磁同步电机的启动方法， 其特征在于： 速 度检测单元检测电机的转速 N, 若电机启动时处于顺风转动状态， 顺风启动电压 Vl=-a X N+V0;若电机启动时处于逆风转动状态，逆风启动电压 V2=a x N+V0;系数 a是实际测量电机启动数据而得到的。 2. A method for starting a permanent magnet synchronous motor according to claim 1, characterized in that: the speed detection unit detects the rotation speed N of the motor. If the motor is in a downwind rotation state when starting, the downwind starting voltage Vl=-a X N +V0; If the motor is rotating against the wind when starting, the headwind starting voltage V2=a x N+V0; the coefficient a is obtained by actually measuring the motor starting data.
3、 根据权利要求 1所述的一种永磁同步电机的启动方法， 其特征在于： 所述的 速度检测单元是霍尔传感器检测单元或者是相电流检测单元或者是反电动势检 测电路。
3. The starting method of a permanent magnet synchronous motor according to claim 1, characterized in that: the speed detection unit is a Hall sensor detection unit or a phase current detection unit or a back electromotive force detection circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2012/079396 WO2014019128A1 (en) | 2012-07-31 | 2012-07-31 | Method for staring permanent magnet synchronous motor |
| CN201280001953.9A CN103748780B (en) | 2012-07-31 | 2012-07-31 | A kind of startup method of permagnetic synchronous motor |
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| PCT/CN2012/079396 WO2014019128A1 (en) | 2012-07-31 | 2012-07-31 | Method for staring permanent magnet synchronous motor |
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| CN103748780B (en) | 2016-09-07 |
| CN103748780A (en) | 2014-04-23 |
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