CN111200390A - High-power inverter control method and device - Google Patents
High-power inverter control method and device Download PDFInfo
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- CN111200390A CN111200390A CN202010115732.0A CN202010115732A CN111200390A CN 111200390 A CN111200390 A CN 111200390A CN 202010115732 A CN202010115732 A CN 202010115732A CN 111200390 A CN111200390 A CN 111200390A
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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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
- H02P29/68—Controlling or determining the temperature of the motor or of the drive based on the temperature of a drive component or a semiconductor component
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Abstract
The invention discloses a method and a device for controlling a high-power inverter. The control method comprises the following steps: receiving a plurality of original driving signals, wherein the number of the original driving signals is the product of the number of the driving plates and the number of the switching devices configured on each driving plate; the method comprises the steps of receiving the temperature of a group of switching devices acting on the same phase of the three-phase motor, and correcting an original driving signal according to the temperature difference when the temperature difference between the group of switching devices is larger than a set threshold value to obtain a single-phase driving signal. The control method provided by the invention detects the temperature of the switching devices in different driving modules in real time, and corrects the driving signals according to the temperature difference when the temperature difference of the switching devices acting on the same phase of the three-phase motor in different driving modules is larger, so that the consistency of the action of the driving signals with each switching device is ensured when a plurality of switching devices are connected in parallel to complete the inversion of high-power voltage signals, and the problem of current circulation caused by the consistency of the driving signals among different driving modules is avoided.
Description
Technical Field
The embodiment of the invention relates to an inverter technology, in particular to a method and a device for controlling a high-power inverter.
Background
In the motor system for the vehicle, the high-voltage power supply is a dc power supply, and the power motor generally adopts a permanent magnet synchronous motor, so that an inverter is required to convert dc power into ac power to drive the power motor. In the inverter for vehicle, an IGBT is generally used as a switching device to perform a process of converting a dc bus voltage into a three-phase ac voltage. With the higher and higher requirements on the dynamic performance of the whole vehicle, the power requirement on the motor system is higher and higher. While the development of IGBTs lags behind the requirements of the system. When the power of a single IGBT cannot meet the power of a power motor system, a method of using a plurality of IGBTs in parallel is generally adopted to improve the power of a motor driving controller.
In the prior art, in order to guarantee the control effect of the IGBT device on the driving module, the actual current of each driving module is generally tested respectively, and the PWM driving signal is adjusted according to the actual current situation of each driving module, but along with the increase of the number of the driving modules, the number of the current sensors needs to be correspondingly increased in the scheme, so that the performance of the main control chip is improved, and meanwhile, an additional driving signal generation module and a corresponding circuit are added, so that the cost is increased greatly, and the realization of the product is not facilitated.
Disclosure of Invention
The invention provides a method and a device for controlling a high-power inverter, which aim to improve the control precision of the inverter and reduce the cost.
In a first aspect, an embodiment of the present invention provides a method for controlling a high-power inverter, including:
receiving a plurality of original driving signals, wherein the number of the original driving signals is the product of the number of the driving plates and the number of the switching devices configured on each driving plate; the method comprises the steps of receiving the temperature of a group of switching devices acting on the same phase of a three-phase motor, and correcting an original driving signal according to the temperature difference when the temperature difference between the switching devices is larger than a set threshold value to obtain a single-phase driving signal.
Further, when the temperature difference between the group of switching devices is larger than a set threshold value, the original driving signal for controlling the switching device with the higher temperature in the group of switching devices is corrected according to the temperature difference.
Further, when the temperature between each group of switching devices is greater than the set threshold, the original driving signal for controlling the switching device with the higher temperature in each group of switching devices is corrected according to the temperature difference between each group of switching devices.
Further, when the temperature between a group of switching devices is larger than a set threshold value, the original driving signal for controlling the switching device with higher temperature in the group of switching devices is corrected according to the temperature difference between the group of switching devices.
In a second aspect, an embodiment of the present invention further provides a high-power inverter apparatus, including a control chip, at least two driving boards, a programmable logic device, and a temperature sensor, where the control chip is connected to the programmable logic device and configured to generate a plurality of original driving signals, where the number of the original driving signals is a product of the number of the driving boards and the number of switching devices configured on each driving board, the temperature sensor is connected to the control chip and the switching devices and configured to detect temperatures of the switching devices, the programmable logic device receives temperatures of a group of switching devices acting on a same phase of a three-phase motor, and corrects the original driving signals according to the temperature differences when the temperature differences between the group of switching devices are greater than a set threshold value to obtain single-phase driving signals, the driving boards are connected to the three-phase motor, and the driving boards control the switching devices to be periodically turned on or turned off through the original driving signals or the single-phase driving And (7) breaking.
Furthermore, each switching device is configured with a transformer unit, a driving circuit and a protection circuit, the transformer unit is connected to the driving circuit and the protection circuit, and is configured to supply power to the driving circuit and the protection circuit, the driving circuit is connected to the switching device, and is configured to drive the switching device to be periodically turned on or off according to the original driving signal or the single-phase driving signal, and the protection circuit is connected to the switching device, and is configured to ensure that the switching device normally operates.
Further, the three-phase motor driving device further comprises a busbar, and the driving board is connected with the three-phase motor through the busbar.
Further, the programmable logic device is an FPGA or a CPLD.
Compared with the prior art, the invention has the beneficial effects that: the control method detects the temperature of the switching devices in different driving modules in real time, when the temperature difference of the switching devices acting on the same phase of the three-phase motor in different driving modules is large, the driving signals are corrected according to the temperature difference, the consistency of the action of the driving signals with the switching devices when the plurality of switching devices are connected in parallel to complete the inversion of high-power voltage signals is ensured, and the problem of current circulation caused by the consistency of the driving signals among different driving modules is avoided.
Drawings
FIG. 1 is a flowchart of a control method in the embodiment;
FIG. 2 is a block diagram showing the structure of a control device in the embodiment;
fig. 3 is a block diagram of a control board in the embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a control method in the first embodiment, and referring to fig. 1, the control method includes:
s1, receiving a plurality of original driving signals.
In this step, the number of the original driving signals is a product of the number of the driving boards and the number of the switching devices configured on each driving board, for example, if the inverter is configured with two driving boards, and each driving board is configured with six switching devices, the number of the original driving signals is twelve. Illustratively, the original driving signal is a PWM signal, and the generating method is the same as the generating method of the driving signal for controlling the operation of the switching device in the inverter in the related art.
S2, receiving the temperature of a group of switching devices acting on the same phase of the three-phase motor, and correcting the original driving signal according to the temperature difference when the temperature difference between the group of switching devices is larger than a set threshold value to obtain a single-phase driving signal.
Illustratively, the inverter is configured with two driving boards, each phase of the three-phase motor is U, V, W, and taking the U-phase of the three-phase motor as an example, when there is a difference between the temperature of the switching device acting on the U-phase on the first driving board and the temperature of the switching device acting on the U-phase on the second driving board, and the difference exceeds a set threshold, the original driving signal is corrected by the following formula:
PWMnew＝PWMout×Temerr×K
PWM in the formulanewFor single phase drive signals, PWMoutFor the original drive signal, TemerrK is a correction coefficient for a temperature difference between switching devices acting on the same phase of the three-phase motor. In this example, TemerrThe absolute value of the temperature difference can be selected, the original driving signal with lower temperature acting on the switching device with the same phase can be selected to be corrected, and the original driving signal with higher temperature acting on the switching device with the same phase can also be selected to be corrected.
In the embodiment, the temperature of the switching devices in different driving modules is detected in real time, when the temperature difference of the switching devices acting on the same phase of the three-phase motor in different driving modules is large, the driving signals are corrected according to the temperature difference, the consistency of the action of the driving signals with the switching devices when the plurality of switching devices are connected in parallel to complete the inversion of high-power voltage signals is ensured, and the problem of current circulation caused by the consistency of the driving signals among different driving modules is avoided.
Example two
As an implementation, on the basis of the first embodiment, in this embodiment, when the temperature difference between a group of switching devices is greater than a set threshold, the original driving signal for controlling the switching device with the higher temperature in the group of switching devices is modified according to the temperature difference.
Illustratively, when the temperature between each group of switching devices is larger than the set threshold value, the original driving signal for controlling the switching device with the higher temperature in each group of switching devices is corrected according to the temperature difference between each group of switching devices.
Illustratively, the inverter is configured with two drive plates, U, V, W for each phase of a three-phase motor. In the first driving module, the temperatures of the switching devices acting on the upper bridge arm and the lower bridge arm of the U phase are respectively UT1、UB1The temperatures of the switching devices in the upper and lower arms acting on the V phase are respectively VT1、VB1The temperatures of the switching devices in the upper arm and the lower arm acting on the W phase are respectively WT1、WB1. In the second driving module, the temperatures of the switching devices acting on the upper bridge arm and the lower bridge arm of the U phase are respectively UT2、UB2The temperatures of the switching devices in the upper and lower arms acting on the V phase are respectively VT2、VB2The temperatures of the switching devices in the upper arm and the lower arm acting on the W phase are respectively WT2、WB2. Aiming at a first drive module, original drive signals for controlling switching devices of an upper bridge arm and a lower bridge arm of a U phase are respectively PWMUT1、PWMUB1The original driving signals for controlling the switching devices of the upper bridge arm and the lower bridge arm of the V phase are respectively PWMVT1、PWMVB1The original driving signals for controlling the W-phase upper bridge arm and lower bridge arm switching devices are respectively PWMWT1、PWMWB1. Aiming at the second driving module, original driving signals for controlling the switching devices of the U-phase upper bridge arm and the U-phase lower bridge arm are respectively PWMUT2、PWMUB2The original driving signals for controlling the switching devices of the upper bridge arm and the lower bridge arm of the V phase are respectively PWMVT2、PWMVB2The original driving signals for controlling the W-phase upper bridge arm and lower bridge arm switching devices are respectively PWMWT2、PWMWB2。
And if the temperature of each phase of switching device in the second driving module is greater than that of the same phase of switching device in the first driving module, correcting all original driving signals in the second driving module. Specifically, if satisfied, UT1＜UT2，UB1＜UB2；VT1＜VT2，VB1＜VB2；WT1＜WT2，WB1＜WB2Then PWM is performed on the original driving signals respectivelyUT2、PWMUB2、PWMVT2、PWMVB2、PWMWT2、PWMWB2The correction is carried out by adopting the formula as follows:
PWMnew＝PWMout×Temerr×K1
Temerr＝((U1-U2)+(V1-V2)+(W1-W2))/6
U1＝UT1+UB1
U2＝UT2+UB2
V1＝VT1+VB1
V2＝VT2+VB2
W1＝WT1+WB1
W2＝WT2+WB2
in the formula, PWMnewFor single phase drive signal to the second drive module, PWMoutFor the original drive signal, K1Is a correction factor.
For example, when the temperature between a group of switching devices is greater than a set threshold, the original driving signal for controlling the switching device with the higher temperature in the group of switching devices is modified according to the temperature difference between the group of switching devices.
For example, if there is a difference in the temperature of a switching device of a certain phase or phases in the drive module, the original drive signal acting on the switching device of the higher temperature in the first drive module is corrected. In particular, U, if presentT1＜UT2，UB1＜UB2Then PWM to the original driving signalUT2、PWMUB2And correcting by adopting the following formula:
PWMnew＝PWMout×Temerr×K2
Temerr＝(U1-U2)/2
U1＝UT1+UB1
U2＝UT2+UB2
if present, UT1＜UT2，UB1＜UB2；WT1＞WT2，WB1＞WB2Then PWM is performed on the original driving signals respectivelyUT2、PWMUB2，PWMWT1、PWMWB1Correcting the PWMUT2、PWMUB2The formula adopted is as follows:
PWMnew＝PWMout×Temerr×K2
Temerr＝(U1-U2)/2
U1＝UT1+UB1
U2＝UT2+UB2
modified PWMWT1、PWMWB1The formula adopted is as follows:
PWMnew＝PWMout×Temerr×K2
Temerr＝(W2-W1)/2
W1＝WT1+WB1
W2＝WT2+WB2
in the above formula, PWMnewFor single phase drive signals, PWMoutFor the original drive signal, K2Is a correction factor.
For example, in the present embodiment, the threshold value of the temperature difference is set to 2 ℃. In the embodiment, the temperatures of the switching devices in different driving modules are detected in real time, and when the temperature difference acting on the switching device with the same phase of the three-phase motor in different driving modules is large, the driving signal acting on the switching device with the high temperature is corrected according to the temperature difference, so that the stability of the inverter is improved, and the problem of current circulation caused by the consistency of the driving signals among different driving modules is avoided.
EXAMPLE III
Fig. 2 is a block diagram of another control device in the embodiment, and referring to fig. 2, the embodiment proposes a high-power inverter device, which includes a control chip 1, at least two driving boards (Q1, Q2), a programmable logic device 2, and temperature sensors (T1, T2).
The control chip 1 is connected with the programmable logic device 2 and is used for generating a plurality of original driving signals, wherein the number of the original driving signals is the product of the number of the driving boards and the number of the switching devices configured on each driving board.
Illustratively, the number of the driving plates is determined according to the rated power of the selected switching device and the design power of the inverter, so that when the switching devices are used in parallel, the design power of the inverter is guaranteed under the condition that the maximum power of a single switching device is not exceeded, for example, the maximum power of the switching device is 160kW, the power of the inverter is 250kW, two identical driving plates need to be configured, and if the maximum power of the switching device is 80kW, and the power of the inverter is 200kW, three identical driving plates need to be configured.
The temperature sensors (T1, T2) are connected with the control chip 1 and the switching devices (UT1 … WB2) and used for detecting the temperatures of the switching devices, the programmable logic device 2 receives the temperatures of a group of switching devices acting on the same phase of the three-phase motor 3, and when the temperature difference between the group of switching devices is larger than a set threshold value, the original driving signals are corrected according to the temperature difference to obtain single-phase driving signals.
The driving plates (Q1, Q2) are connected with the three-phase motor, and the driving plates (Q1, Q2) control the switching device (UT1 … WB2) to be periodically switched on or switched off through an original driving signal or a single-phase driving signal.
Illustratively, in the present embodiment, the switching device (UT1 … WB2) is an IGBT device.
In this embodiment, the control chip 1 and the programmable logic device 2 are disposed on a control board, and fig. 3 is a structural block diagram of the control board in the embodiment, and referring to fig. 3, the control board includes the control chip 1 and the programmable logic device 2. The control chip 1 is provided with an anti-reverse connection circuit 4, a switch circuit 5, a temperature sensor interface 6, a power supply management unit 7, a whole vehicle CAN interface 8, a rotary transformer signal processing circuit 9, a rotary transformer sensor interface 10 and a current sensor interface 11.
The power management unit 7 is configured to provide various power supplies, such as 5V, 3.3V, 1.2V, and the like, for the main control chip 1 and the programmable logic device 2. And the whole vehicle CAN interface 8 is in communication connection with the main control chip 1 through a signal line and is used for receiving and sending CAN signals. The resolver sensor interface 10 is used for being electrically connected with the resolver sensor, the resolver signal processing circuit 9 is used for providing a resolver excitation signal and conditioning sine signals and cosine signals fed back by the resolver sensor to analyze angle information of the three-phase motor 3, and the resolver signal processing circuit 9 is in communication connection with the main control chip 1 through a parallel port, an SPI or an ABZ mode and sends the angle information to the main control chip 1. The current sensor interface 11 is electrically connected to the current sensor, and is configured to provide a supply voltage for the current sensor, perform necessary filtering processing on current signals of each phase of the three-phase motor 3 fed back by the current sensor, and send the current signals to the main control chip 1, in this example, three current sensors are provided in total, and are respectively provided on signal lines of each phase of the three-phase motor 3. The temperature sensor interface 6 is connected with the temperature sensor and used for conditioning the temperature signal of the driving plate and feeding the temperature signal back to the main control chip.
As an embodiment, each switching device (UT1 … WB2) is provided with a transformer unit, a driving circuit and a protection circuit. The transformer unit is connected with the drive circuit and the protection circuit and used for supplying power to the drive circuit and the protection circuit. The driving circuit is connected with the switching device and is used for driving the switching device to be periodically switched on or switched off according to the original driving signal or the single-phase driving signal. The protection circuit is connected with the switching device and used for ensuring the normal work of the switching device.
By respectively configuring a transformer unit, a driving circuit and a protection circuit for each switching device, the mutual noninterference among all the switching devices on one driving board is ensured from the perspective of electrical design. Specifically, the transformer unit is used for realizing the isolation of the low-voltage signal and the high-voltage signal and providing a power supply for the driving circuit and the protection circuit. The driving circuit is used for realizing level conversion of an original driving signal or a single-phase driving signal so as to meet the requirement of driving a switching device, and meanwhile, the driving circuit is also used for collecting the temperature of the switching device and transmitting the temperature of the switching device to the main control chip 1 in the form of a PWM signal.
Alternatively, the temperature of the switching device may be in an analog or other form, and in this case, the analog signal may be converted into a digital signal by a corresponding DAC or conversion circuit, and the temperature signal is directly sent to the programmable logic device 2 through the signal isolation circuit.
Preferably, the inverter device further includes a busbar, and the driving board (Q1, Q2) is connected to the three-phase motor 3 through the busbar.
Illustratively, the programmable logic device 2 is an FPGA or a CPLD.
Illustratively, the operation process of the inverter device includes:
step 1, the control chip receives the temperature of the switching device collected by the temperature sensor and generates an original driving signal according to the current of each phase of the three-phase motor and the rotation angle of the three-phase motor.
And 2, receiving the original driving signals by the programmable logic device, and copying the original driving signals based on the number of the driving plates.
For example, if two driver boards are configured, one original driving signal is duplicated into two original driving signals, and if three driver boards are configured, one original driving signal is duplicated into three original driving signals.
And 3, receiving the temperature of a group of switching devices of the same phase of the three-phase motor, which is sent by the control chip, by the programmable logic device, and correcting the original driving signal according to the temperature difference when the temperature difference between the group of switching devices is greater than a set threshold value to obtain a single-phase driving signal.
Illustratively, the inverter is configured with two driving boards, each phase of the three-phase motor is U, V, W, and taking the U-phase of the three-phase motor as an example, when there is a difference between the temperature of the switching device acting on the U-phase on the first driving board and the temperature of the switching device acting on the U-phase on the second driving board, and the difference exceeds a set threshold, the original driving signal is corrected by the following formula:
PWMnew＝PWMout×Temerr×K
PWM in the formulanewFor single phase drive signals, PWMoutFor the original drive signal, TemerrK is a correction coefficient for a temperature difference between switching devices acting on the same phase of the three-phase motor. In this example, TemerrThe absolute value of the temperature difference can be selected, the original driving signal with lower temperature acting on the switching device with the same phase can be selected to be corrected, and the original driving signal with higher temperature acting on the switching device with the same phase can also be selected to be corrected.
As an implementation, in this embodiment, when the temperature difference between a group of switching devices is greater than a set threshold, the original driving signal for controlling the switching device with the higher temperature in the group of switching devices is modified according to the temperature difference.
Illustratively, when the temperature between each group of switching devices is larger than the set threshold value, the original driving signal for controlling the switching device with the higher temperature in each group of switching devices is corrected according to the temperature difference between each group of switching devices.
For example, when the temperature between a group of switching devices is greater than a set threshold, the original driving signal for controlling the switching device with the higher temperature in the group of switching devices is modified according to the temperature difference between the group of switching devices.
The above-mentioned correction method is the same as the content recorded in the first embodiment, and is not described herein again.
And 4, the driving board controls the switching device to be periodically switched on or switched off through the original driving signal or the single-phase driving signal so as to complete the inversion process of the voltage.
In the embodiment, the main control chip collects the actual current of each phase of the three-phase motor and the rotation angle information of the three-phase motor, so as to generate an original driving signal, and outputs the original driving signal to the programmable logic device, the programmable logic device realizes the driving control of the switch device through the driving plate so as to realize the inversion process of voltage, the programmable logic device controls the parallel driving plates, so as to ensure the synchronism of the driving signal acted on each driving plate, meanwhile, the programmable logic device can receive the temperature of the switch device in different driving modules, when the temperature difference of the switch device acted on the same phase of the three-phase motor in different driving modules is larger, the driving signal is corrected according to the temperature difference, so as to ensure the consistency of the action and the driving signal of each switch device when a plurality of switch devices are connected in parallel to finish the inversion of high-power voltage signals, the problem of current circulation caused by consistency of driving signals among different driving modules is avoided.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. A method for controlling a high power inverter, comprising:
receiving a plurality of original driving signals, wherein the number of the original driving signals is the product of the number of the driving plates and the number of the switching devices configured on each driving plate;
the method comprises the steps of receiving the temperature of a group of switching devices acting on the same phase of a three-phase motor, and correcting an original driving signal according to the temperature difference when the temperature difference between the switching devices is larger than a set threshold value to obtain a single-phase driving signal.
2. The control method of claim 1, wherein when a temperature difference between the set of switching devices is greater than a set threshold, a raw driving signal for controlling a higher temperature switching device of the set of switching devices is modified according to the temperature difference.
3. The control method of claim 2, wherein when the temperature between each group of switching devices is greater than a set threshold, the original driving signal for controlling the switching device with the higher temperature in each group of switching devices is modified according to the temperature difference between each group of switching devices.
4. The control method of claim 2, wherein when the temperature between a set of switching devices is greater than a set threshold, the original driving signal for controlling the switching device having the higher temperature among the set of switching devices is modified according to the temperature difference between the set of switching devices.
5. A high-power inverter device is characterized by comprising a control chip, at least two driving plates, a programmable logic device and a temperature sensor,
the control chip is connected with the programmable logic device and is used for generating a plurality of original driving signals, wherein the number of the original driving signals is the product of the number of the driving plates and the number of the switching devices configured on each driving plate,
the temperature sensor is connected with the control chip and the switching devices and used for detecting the temperature of the switching devices, the programmable logic device receives the temperature of a group of switching devices acting on the same phase of the three-phase motor, when the temperature difference between the group of switching devices is larger than a set threshold value, the original driving signal is corrected according to the temperature difference to obtain a single-phase driving signal,
the driving board is connected with a three-phase motor, and the driving board controls the periodic conduction or the turn-off of the switching device through the original driving signal or the single-phase driving signal.
6. The apparatus of claim 5, wherein each of said switching devices is provided with a transformer unit, a driving circuit and a protection circuit,
the transformer unit is connected with the drive circuit and the protection circuit and used for supplying power to the drive circuit and the protection circuit,
the driving circuit is connected with the switching device and is used for driving the switching device to be periodically switched on or switched off according to the original driving signal or the single-phase driving signal,
the protection circuit is connected with the switching device and used for ensuring the normal work of the switching device.
7. The apparatus of claim 5, further comprising a busbar, the drive board being connected to the three-phase motor through the busbar.
8. The apparatus of claim 5, wherein the programmable logic device is an FPGA or a CPLD.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054744A (en) * | 2020-09-18 | 2020-12-08 | 中国第一汽车股份有限公司 | Inverter temperature control method, system, vehicle and medium |
| CN112117953A (en) * | 2020-09-01 | 2020-12-22 | 上海艾为电子技术股份有限公司 | Method for adjusting and driving drive waveform of linear motor and drive control circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789707A (en) * | 2009-01-27 | 2010-07-28 | Abb公司 | The load balance of the inverter module that is connected in parallel |
| CN204316368U (en) * | 2015-01-20 | 2015-05-06 | 北京东风机车电器厂 | A kind of inverter module |
| US20160373047A1 (en) * | 2015-06-19 | 2016-12-22 | Deere & Company | Method and inverter with thermal management for controlling an electric machine |
| CN110247617A (en) * | 2019-06-19 | 2019-09-17 | 宁波诺丁汉大学 | The active heat management method of permanent magnet synchronous motor modular event driven device based on power distribution method |
| CN110518784A (en) * | 2019-07-19 | 2019-11-29 | 杭州洲钜电子科技有限公司 | Power MOSFET parallel current-equalizing circuit in a kind of inverter |
| CN110521104A (en) * | 2017-04-21 | 2019-11-29 | 株式会社日立制作所 | Power inverter, its diagnostic system, diagnostic method and the motor control system using it |
-
2020
- 2020-02-25 CN CN202010115732.0A patent/CN111200390A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789707A (en) * | 2009-01-27 | 2010-07-28 | Abb公司 | The load balance of the inverter module that is connected in parallel |
| CN204316368U (en) * | 2015-01-20 | 2015-05-06 | 北京东风机车电器厂 | A kind of inverter module |
| US20160373047A1 (en) * | 2015-06-19 | 2016-12-22 | Deere & Company | Method and inverter with thermal management for controlling an electric machine |
| CN110521104A (en) * | 2017-04-21 | 2019-11-29 | 株式会社日立制作所 | Power inverter, its diagnostic system, diagnostic method and the motor control system using it |
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Application publication date: 20200526 |