阅读说明：本技术 电机及其控制方法 (Motor and control method thereof ) 是由 孙阿芳 董婷婷 重松隆史 施佩克尔托马斯 于 2018-07-19 设计创作，主要内容包括：公开了一种N相电机,N为整数且≥3,电机包括：外壳；在外壳内固定布置的i×N个定子绕组,i为整数且≥2；以及在外壳内由所述i×N个定子绕组围绕的可旋转的转子,沿着圆周方向,各定子绕组被连续划分为i个副组,每个副组具有N个定子绕组,电机还包括i个电流控制模块以及i个测温装置,每个电流控制模块相应地与对应一个副组中的N个定子绕组电连接,以使得在所述i个副组中的定子绕组通过所述i个电流控制模块被供电时,产生围绕所述转子的旋转磁场,每个测温装置用于在所述电机运行时测量所述i个副组中的对应一个副组的温度,在电机运行时,每个电流控制模块独立地依据对应副组的温度测量值控制该副组内的定子绕组的供电幅值。(Disclosed is an N-phase motor, N is an integer and not less than 3, the motor includes: a housing; i multiplied by N stator windings are fixedly arranged in the shell, wherein i is an integer and is more than or equal to 2; and a rotatable rotor surrounded by the i × N stator windings in the housing, each stator winding being continuously divided into i sub-groups in a circumferential direction, each sub-group having N stator windings, the motor further including i current control modules each being respectively electrically connected to the N stator windings in a corresponding one of the sub-groups so that a rotating magnetic field surrounding the rotor is generated when the stator windings in the i sub-groups are supplied with power through the i current control modules, and i thermometers each for measuring a temperature of a corresponding one of the i sub-groups when the motor is operated, each current control module independently controlling a supply amplitude of the stator windings in the sub-group in accordance with a temperature measurement value of the corresponding sub-group when the motor is operated.)

An N-phase electric machine, in particular an N-phase permanent magnet synchronous machine, wherein N is an integer and not less than 3, the machine comprising:

a housing;

i multiplied by N stator windings are fixedly arranged in the shell, wherein i is an integer and is more than or equal to 2; and

a rotatable rotor within the housing surrounded by the i × N stator windings, wherein each stator winding is continuously divided into i sub-groups each having N stator windings in a circumferential direction, the motor further includes i current control modules each being respectively electrically connected to the N stator windings in a corresponding one of the sub-groups so that a rotating magnetic field around the rotor is generated when the stator windings in the i sub-groups are supplied with power through the i current control modules, and i thermometers each for measuring a temperature of a corresponding one of the i sub-groups when the motor is operated, and each current control module independently controls a supply amplitude of the stator windings in the sub-group in accordance with a temperature measurement value of the corresponding sub-group when the motor is operated.

The N-phase electric machine according to claim 1, wherein each temperature measuring device comprises one or more temperature sensors disposed within the housing.

The N-phase electric machine according to claim 2, wherein the temperature sensor is provided at an axial end of the stator winding.

The N-phase electric machine according to any of the preceding claims, characterized in that the supply amplitude of the stator windings in a subgroup is reduced by the corresponding current control module when the temperature measurement of said subgroup is higher than a first preset value; and/or, when the temperature measured value of one sub-group is lower than a second preset value, the power supply amplitude of the stator winding in the sub-group is increased through the corresponding current control module.

The N-phase electric machine according to claim 3, wherein each temperature measuring device includes N temperature sensors to measure the temperature of each stator winding within the corresponding sub-group.

The N-phase motor according to claim 4, wherein the first preset value is equal to or greater than the second preset value.

An N-phase electric machine, in particular an N-phase permanent magnet synchronous machine, wherein N is an integer and not less than 3, the machine comprising:

a housing;

k stator winding sections arranged in the housing in a fixed manner in the axial direction, where K is an integer and ≧ 2,

a rotatable rotor within a housing surrounded by the K stator winding sections, each stator winding section comprising a plurality of stator windings, the motor further comprising K temperature measuring devices, each temperature measuring device for measuring a temperature of a corresponding one of the K stator winding sections when the motor is in operation, wherein a supply amplitude of the stator windings in each stator winding section is dependent independently on the temperature measurements of that stator winding section when the motor is in operation.

The N-phase electric machine according to claim 7, wherein each stator winding section includes a plurality of stator windings in the same number, and the stator windings of each stator winding section are axially aligned with each other, respectively.

The N-phase electric machine according to claim 7, wherein each stator winding section is provided with a current control module, and the supply amplitude of the stator windings in a stator winding section is reduced by the corresponding current control module when the temperature measurement of said stator winding section is above a first preset value; and/or, when the temperature measured value of a stator winding section is lower than a second preset value, the power supply amplitude of the stator winding in the stator winding section is increased through the corresponding current control module.

An N-phase electric machine according to any one of claims 7 to 9, wherein each temperature measuring device comprises one or more temperature sensors disposed within the housing.

The N-phase electric machine according to claim 10, wherein the temperature sensor is provided at an axial end of the stator winding.

The N-phase motor according to claim 9, wherein the first preset value is equal to or greater than the second preset value.

An N-phase electric machine, in particular an N-phase permanent magnet synchronous machine, wherein N is an integer and not less than 3, the machine comprising:

a housing;

k stator winding sections arranged in the housing in a fixed manner in the axial direction, where K is an integer and ≧ 2,

at least one of the K stator winding sections includes i x N stator windings such that each stator winding is continuously divided into i sub-groups in a circumferential direction and each sub-group has N stator windings, wherein i is an integer and ≥ 2, and i current control modules each electrically connected with N stator windings in a corresponding one of the subgroups respectively and i temperature measuring devices are provided for the at least one stator winding section, such that when the stator windings in the i subgroups are supplied with power by the i current control modules, a rotating magnetic field is generated around the rotor, and each temperature measuring device is used for measuring the temperature of a corresponding one of the i subgroups when the motor runs, when the motor runs, each current control module independently controls the power supply amplitude of the stator windings in the corresponding secondary group according to the temperature measured value of the secondary group.

The N-phase electric machine according to claim 13, wherein each temperature measuring device comprises one or more temperature sensors disposed within the housing.

The N-phase electric machine according to claim 14, wherein the temperature sensor is provided at an axial end of the stator winding.

The N-phase electric machine according to any of claims 13 to 15, wherein, when the temperature measurement of a secondary group is higher than a first preset value, the supply amplitude of the stator windings in said secondary group is reduced by the corresponding current control module; and/or, when the temperature measured value of one sub-group is lower than a second preset value, the power supply amplitude of the stator winding in the sub-group is increased through the corresponding current control module.

The N-phase electric machine according to claim 15, wherein each thermometric device comprises N temperature sensors to measure the temperature of each stator winding within the corresponding subgroup.

The N-phase motor according to claim 16, wherein the first preset value is equal to or greater than the second preset value.

A method of controlling an N-phase electric machine, in particular an N-phase permanent magnet synchronous machine, wherein N is an integer and ≥ 3, the machine comprising i × N stator windings, wherein i is an integer and ≥ 2, the method comprising:

continuously dividing each stator winding into i sub-groups along the circumferential direction, wherein each sub-group is provided with N stator windings;

providing the motor with i current control modules and i thermometers, each current control module being electrically connected to the N stator windings in a corresponding one of the subgroups, respectively, such that a rotating magnetic field is generated around the rotor of the motor when the stator windings in the i subgroups are powered by the i current control modules, and each thermometer is for measuring the temperature of a corresponding one of the i subgroups while the motor is running; and

and when the motor runs, independently controlling the power supply amplitude of the stator windings in each secondary group through the corresponding current control module according to the temperature measured value of each secondary group.

The control method of claim 19, wherein each temperature measuring device comprises one or more temperature sensors disposed within the housing.

A control method according to claim 19 or 20, characterized in that the temperature sensor is provided at an axial end of a stator winding.

Control method according to any of claims 19 to 21, characterized in that, when the temperature measurement of a subgroup is higher than a first preset value, the supply amplitude of the stator windings in said subgroup is reduced by the corresponding current control module; and/or, when the temperature measured value of one sub-group is lower than a second preset value, the power supply amplitude of the stator winding in the sub-group is increased through the corresponding current control module.

The control method of claim 21, wherein each thermometric device comprises N temperature sensors to measure the temperature of each stator winding within the corresponding subgroup.

The control method according to claim 22, wherein the first preset value is equal to or greater than the second preset value.

A control method of an N-phase electric machine, in particular an N-phase permanent magnet synchronous machine, where N is an integer and ≧ 3, the machine comprising K stator winding sections fixedly arranged along an axial direction, where K is an integer and ≧ 2, each stator winding section comprising a plurality of stator windings, the method comprising:

providing K temperature measuring devices for the motor, wherein each temperature measuring device is used for measuring the temperature of a corresponding stator winding section in the K stator winding sections when the motor runs; and

during operation of the electric machine, the supply amplitudes of the stator windings in each stator winding section are determined independently from the temperature measurement of the stator winding section.

The control method of claim 25, wherein each stator winding section includes a plurality of stator windings of the same number, and the stator windings of each stator winding section are axially aligned with each other.

A control method according to claim 25 or 26, characterized in that each stator winding section is provided with a current control module and that the supply amplitude of the stator windings in a stator winding section is reduced by the corresponding current control module when the temperature measurement of said stator winding section is above a first preset value; and/or, when the temperature measured value of a stator winding section is lower than a second preset value, the power supply amplitude of the stator winding in the stator winding section is increased through the corresponding current control module.

A control method according to any one of claims 25 to 27, wherein each temperature measuring device comprises one or more temperature sensors disposed within the housing.

The control method according to claim 28, wherein the temperature sensor is provided at an axial end portion of the stator winding.

The control method according to claim 27, wherein the first preset value is equal to or greater than the second preset value.

A control method of an N-phase electric machine, in particular an N-phase permanent magnet synchronous machine, where N is an integer and ≧ 3, the machine comprising K stator winding sections fixedly arranged along an axial direction, where K is an integer and ≧ 2, each stator winding section comprising a plurality of stator windings, the method comprising:

at least one stator winding section in the K stator winding sections is provided with i multiplied by N stator windings, wherein i is an integer and is more than or equal to 2;

continuously dividing the i × N stator windings of the at least one stator winding section into i sub-groups each having N stator windings along a circumferential direction;

providing the at least one stator winding section with i current control modules and i thermometers, each current control module being electrically connected with the N stator windings in a corresponding one of the subgroups respectively, such that a rotating magnetic field around a rotor of the electric machine is generated when the stator windings in the i subgroups are powered by the i current control modules, and each thermometer is for measuring a temperature of a corresponding one of the i subgroups while the electric machine is running; and

and when the motor runs, independently controlling the power supply amplitude of the stator windings in each secondary group through the corresponding current control module according to the temperature measured value of each secondary group.

The control method of claim 21, wherein each temperature measuring device comprises one or more temperature sensors disposed within the housing.

A control method according to claim 31 or 32, characterised in that the temperature sensors are provided at axial ends of the stator windings.

The control method according to any one of claims 31 to 33, wherein, when the temperature measurement of a sub-group is higher than a first preset value, the supply amplitude of the stator windings in said sub-group is reduced by the corresponding current control module; and/or, when the temperature measured value of one sub-group is lower than a second preset value, the power supply amplitude of the stator winding in the sub-group is increased through the corresponding current control module.

The control method of claim 33, wherein each thermometric device comprises N temperature sensors to measure the temperature of each stator winding within the corresponding subgroup.

The control method of claim 34, wherein the first preset value is equal to or greater than the second preset value.

An electric vehicle, in particular an electric motorcycle, comprising an N-phase electric machine according to any one of claims 1 to 18.