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Efficiency depends on operating loss, brushless motor efficiency and loss analysis, worth learning
by：Hoprio
2020-11-12
Efficiency is an important performance index of the motor, the most direct is defined as the ratio of the motor output power and input power, output power of motor to the efficient conversion of electrical energy into mechanical energy, the input power to the power input power, so the efficiency of the motor is essentially represents the electrical energy into mechanical conversion rate.
in the motor's effectiveness depends on the runtime of loss, the greater the loss of the motor efficiency is lower. The size of the loss and the selected motor electromagnetic load has a lot to do. When a motor need to reduce the loss, we need to select a lower electromagnetic load as well as the current density and so on, but that the potential need to increase the motor size and material consumption, thus increasing the volume and weight of the motor, motor manufacturing costs will increase. Therefore, to a certain extent, motor loss and the volume weight, not both. In addition, the size of the loss and material performance, winding form, the structure of the motor are inseparable relationship. To design a good performance and economic motor, design personnel must be familiar with the loss of the motor and the relationship of these factors.
unmanned aerial vehicle (uav) need to provide lift rotating propeller, the parameters of the motor with propeller matching, we can see a list of strength parameters, it represents the propeller of the ratio of lift and motor input power, the unit is g/W. Can see from the unit, the efficiency and the concept of force effect is not the same. In fact, a set of power system efficiency and the effect is not proportional to the force, on the transverse, motor running in a different state, high efficiency when different concentration effect is high, but on the longitudinal, small loss at high efficiency of motor, also under the power of nature can generate greater lift and have the same tension, this means that the force of the motor will be more high power-saving, this is the user wants. T- Company in accordance with the need of the market, introduced a few Gao Lixiao U series MOTOR, such as U8 U10 MOTOR. 。 。
effectiveness depends on operating loss, brushless motor efficiency and loss analysis, worth learning
the wastage of the permanent magnet brushless dc motor is usually can be divided into the following kinds:
1) Iron loss, iron loss (including magnetic materials Silicon steel sheet) The hysteresis loss and eddy current loss and residual loss, commonly used units for W/kg. Hysteresis losses are produced by the silicon steel in permeability inherent loss; Eddy current loss is flux alternating process, silicon steel sheet produced by the induced current loss; Residual loss is to point to in addition to the magnetic hysteresis loss and eddy current loss of loss, because for a small proportion, is negligible. Hysteresis loss is mainly decided by the material, thickness of decided to the size of the eddy current loss. The thinner of the silicon steel sheet, the eddy current loss is smaller, so the silicon steel sheet made from a thin slices of silicon steel sheet veiw. At present, 0. 15 mm and 0. 2 mm T - ultra-thin silicon steel sheet has been covered All electrical MOTOR. Thinner, lighter, better material of silicon steel sheet is set for launch in the special requirements of the motor in the future.
effectiveness depends on operating loss, brushless motor efficiency and loss analysis, it is worth learning
2) Copper loss: through the stator winding current will consume a certain amount of power, this part into heat loss, is an important factor of the motor running temperature, we call this kind of loss & quot; Copper loss & quot; 。 Temperature is too high to cause a decline in the motor performance, limited power, and even burning motor, is what we are to overcome the key problem. Winding form, winding process and material selection is the main way to improve the copper loss. T- Forms of MOTOR windings of each MOTOR are calculated and the measured, manual winding process instead of machine, silver wire instead of copper wire, etc. , as far as possible, reduce the copper loss. Chart for T - MOTOR winding by hand F40PRO and F60PRO silver wire MOTOR.
effectiveness depends on operating loss, brushless motor efficiency and loss analysis, worth learning
: mechanical consumption of brushless dc motor consists of bearing friction loss and wind damage, mechanical consumption, and the vast majority of decided by bearing. Good performance of the bearing, the icing on the cake, not only on the efficiency of motor on the service life of the motor is also crucial. Chart for U7 motor bearing in Germany. Motor can continuous run of 1000 hours, is a life long motor operation.
. Brushless dc motor
in the motor's effectiveness depends on the runtime of loss, the greater the loss of the motor efficiency is lower. The size of the loss and the selected motor electromagnetic load has a lot to do. When a motor need to reduce the loss, we need to select a lower electromagnetic load as well as the current density and so on, but that the potential need to increase the motor size and material consumption, thus increasing the volume and weight of the motor, motor manufacturing costs will increase. Therefore, to a certain extent, motor loss and the volume weight, not both. In addition, the size of the loss and material performance, winding form, the structure of the motor are inseparable relationship. To design a good performance and economic motor, design personnel must be familiar with the loss of the motor and the relationship of these factors.
unmanned aerial vehicle (uav) need to provide lift rotating propeller, the parameters of the motor with propeller matching, we can see a list of strength parameters, it represents the propeller of the ratio of lift and motor input power, the unit is g/W. Can see from the unit, the efficiency and the concept of force effect is not the same. In fact, a set of power system efficiency and the effect is not proportional to the force, on the transverse, motor running in a different state, high efficiency when different concentration effect is high, but on the longitudinal, small loss at high efficiency of motor, also under the power of nature can generate greater lift and have the same tension, this means that the force of the motor will be more high power-saving, this is the user wants. T- Company in accordance with the need of the market, introduced a few Gao Lixiao U series MOTOR, such as U8 U10 MOTOR. 。 。
effectiveness depends on operating loss, brushless motor efficiency and loss analysis, worth learning
the wastage of the permanent magnet brushless dc motor is usually can be divided into the following kinds:
1) Iron loss, iron loss (including magnetic materials Silicon steel sheet) The hysteresis loss and eddy current loss and residual loss, commonly used units for W/kg. Hysteresis losses are produced by the silicon steel in permeability inherent loss; Eddy current loss is flux alternating process, silicon steel sheet produced by the induced current loss; Residual loss is to point to in addition to the magnetic hysteresis loss and eddy current loss of loss, because for a small proportion, is negligible. Hysteresis loss is mainly decided by the material, thickness of decided to the size of the eddy current loss. The thinner of the silicon steel sheet, the eddy current loss is smaller, so the silicon steel sheet made from a thin slices of silicon steel sheet veiw. At present, 0. 15 mm and 0. 2 mm T - ultra-thin silicon steel sheet has been covered All electrical MOTOR. Thinner, lighter, better material of silicon steel sheet is set for launch in the special requirements of the motor in the future.
effectiveness depends on operating loss, brushless motor efficiency and loss analysis, it is worth learning
2) Copper loss: through the stator winding current will consume a certain amount of power, this part into heat loss, is an important factor of the motor running temperature, we call this kind of loss & quot; Copper loss & quot; 。 Temperature is too high to cause a decline in the motor performance, limited power, and even burning motor, is what we are to overcome the key problem. Winding form, winding process and material selection is the main way to improve the copper loss. T- Forms of MOTOR windings of each MOTOR are calculated and the measured, manual winding process instead of machine, silver wire instead of copper wire, etc. , as far as possible, reduce the copper loss. Chart for T - MOTOR winding by hand F40PRO and F60PRO silver wire MOTOR.
effectiveness depends on operating loss, brushless motor efficiency and loss analysis, worth learning
: mechanical consumption of brushless dc motor consists of bearing friction loss and wind damage, mechanical consumption, and the vast majority of decided by bearing. Good performance of the bearing, the icing on the cake, not only on the efficiency of motor on the service life of the motor is also crucial. Chart for U7 motor bearing in Germany. Motor can continuous run of 1000 hours, is a life long motor operation.
. Brushless dc motor
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