CN113992070B - Motor power supply system, control method and control equipment thereof - Google Patents
Motor power supply system, control method and control equipment thereof Download PDFInfo
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- CN113992070B CN113992070B CN202111041227.7A CN202111041227A CN113992070B CN 113992070 B CN113992070 B CN 113992070B CN 202111041227 A CN202111041227 A CN 202111041227A CN 113992070 B CN113992070 B CN 113992070B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 84
- 230000005284 excitation Effects 0.000 claims abstract description 80
- 238000012544 monitoring process Methods 0.000 claims description 15
- 230000007958 sleep Effects 0.000 claims description 11
- 230000005059 dormancy Effects 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 8
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
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Abstract
The embodiment of the invention provides a motor power supply system, a control method and control equipment thereof, wherein after a power supply conversion module, a first signal acquisition module and a control module are started to operate, a second signal acquisition module and an IGBT module are electrified, whether the system is electrified at high voltage is judged by the control module, and if the system is judged to be electrified at high voltage, the operation of the IGBT module is controlled; then, the states of the power conversion module and the IGBT module are monitored through the control module, and when the states of the power conversion module and the IGBT module are monitored to be normal, the rotary excitation module is controlled to operate so as to control the motor to start to operate; finally, the states of the power conversion module, the IGBT module and the rotary excitation module are monitored through the control module, and when the states of the power conversion module, the IGBT module and the rotary excitation module are all normal, the second signal acquisition module is controlled to operate so as to monitor the motor operation process, and the safety in the motor control process is effectively improved.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a motor power supply system, a control method and control equipment thereof.
Background
With the continuous improvement of the living standard of people and the enhancement of environmental awareness, new energy automobiles are rapidly developed in recent years, and the permanent magnet synchronous electric drive system serving as a power source is increasingly widely applied. The requirements on the response speed, the efficiency and the function of the electric drive system are higher and higher, so that the requirements on the data processing speed and the power consumption of the permanent magnet synchronous motor controller are higher and higher.
The low-voltage power supply module is used as a basis for normal operation of a motor controller, and the low-voltage power supply of the permanent magnet synchronous motor controller mainly provides control voltage and current for a rotary excitation unit, a CPU (Central Processing Unit ) minimum circuit unit, a motor temperature sensor, a high-voltage sampling circuit, an IGBT (Insulated Gate Bipolar Transistor ) temperature sensor, a current sensor, a rotary signal sampling unit circuit unit and an IGBT driving unit.
At present, a permanent magnet synchronous motor controller lacks of monitoring a variable excitation unit and a switching power supply, and the motor controller has dark current, so that electric energy of a new energy automobile can be wasted.
Disclosure of Invention
The embodiment of the invention at least solves the technical problem of low safety when controlling a motor in the related technology by providing the motor power supply system, the control method and the control equipment thereof.
In a first aspect, the present invention provides, by an embodiment of the present invention, a motor power supply system, the system comprising: a control module; the rotary variable excitation module, the power conversion module, the first signal acquisition module, the second signal acquisition module and the IGBT module are connected with the control module; after the power conversion module, the first signal acquisition module and the control module start to operate, and the second signal acquisition module and the IGBT module are electrified, the control module is used for: judging whether the system finishes high-voltage power-on, if so, controlling the IGBT module to operate, and monitoring the states of the power conversion module and the IGBT module; when the states of the power conversion module and the IGBT module are monitored to be normal, controlling the rotary excitation module to operate, and monitoring the states of the power conversion module, the IGBT module and the rotary excitation module; and when the states of the power supply conversion module, the IGBT module and the rotary excitation module are normal, controlling the second signal acquisition module to operate.
Preferably, the control module is further configured to: when the fact that the system is not complete in high-voltage power-on is judged, the signal acquisition module and the IGBT module are controlled to stop running, and the system is controlled to enter a power-on waiting mode; and controlling the system to enter a fault mode when one or more of the power conversion module, the IGBT module and the rotary excitation module are monitored to work abnormally.
Preferably, after the rotary excitation module, the power conversion module, the first signal acquisition module, the second signal acquisition module and the control module start to operate, the control module is further configured to: after judging that the system finishes high-voltage down, controlling the IGBT module to stop running, and judging whether the system meets a low-voltage down condition; if the system meets the low-voltage down condition, sequentially controlling the second signal acquisition module and the rotary excitation module to stop running, and judging whether the system meets a dormancy condition; and if the system does not meet the dormancy condition, controlling the control module, the first signal acquisition module and the power conversion module to stop running.
Preferably, the control module is further configured to: when the system is judged to be not complete in high-voltage power down, controlling the system to enter a normal operation mode; when the system is judged not to meet the low-voltage power-down condition, controlling the system to enter a power-down waiting mode; and controlling the system to enter a sleep mode when judging that the system meets the sleep condition.
Preferably, the power conversion module is configured to: and performing voltage regulation processing on the accessed vehicle-mounted power supply to provide the processed power supply for the control module and the first signal acquisition module.
Preferably, the rotary excitation module includes: a rotary excitation power supply and a rotary excitation circuit; the rotary excitation power supply is connected with the control module and used for carrying out voltage regulation treatment on the accessed vehicle-mounted power supply under the control of the control module so as to provide the treated power supply for the rotary excitation circuit; the rotary excitation circuit is connected with the rotary excitation power supply and is used for providing excitation power supply required by the work of the motor.
Preferably, the IGBT module includes: IGBT driving power supply and IGBT driving circuit; the IGBT driving power supply is connected with the control module and the IGBT driving circuit and is used for carrying out voltage regulation treatment on the accessed vehicle-mounted power supply under the control of the control module so as to provide the treated power supply for the IGBT driving circuit; the power supply circuit is also used for storing power for turning off the IGBT driving circuit; and the IGBT driving circuit is used for driving the motor to work.
Preferably, the first signal acquisition module includes: the current acquisition circuit and the rotary-change signal acquisition circuit; the current acquisition circuit and the rotation signal acquisition circuit are connected with the control module; the current acquisition circuit is used for acquiring current data of the system and feeding the current data back to the control module; the system comprises a control module, a rotation signal acquisition circuit, a rotation signal feedback circuit and a control module, wherein the rotation signal acquisition circuit is used for acquiring rotation signal data of the system and feeding back the rotation signal data to the control module; the control module is specifically configured to: and judging whether the system is powered on at high voltage or not according to the current data and the rotation signal data, and monitoring the states of the power conversion module, the IGBT module and the rotation excitation module.
In a second aspect, the present invention provides, according to an embodiment of the present invention, a control method of a motor power supply system, applied to any one of the motor control systems in the first aspect, the control method including: the power conversion module, the first signal acquisition module and the control module are controlled to start running, and the second signal acquisition module and the IGBT module are controlled to be electrified; judging whether the system finishes high-voltage power-on, if so, controlling the IGBT module to operate, and monitoring the states of the power conversion module and the IGBT module; when the states of the power conversion module and the IGBT module are monitored to be normal, controlling the rotary excitation module to operate, and monitoring the states of the power conversion module, the IGBT module and the rotary excitation module; and when the states of the power supply conversion module, the IGBT module and the rotary excitation module are normal, controlling the second signal acquisition module to operate.
In a third aspect, the present invention provides, by an embodiment of the present invention, a control apparatus for a motor power supply system, applied to any one of the motor power supply systems of the first aspect, the control apparatus comprising: a memory, a processor, and code stored on the memory and executable on the processor, the processor implementing control of any of the systems of the first aspect when the code is executed.
One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages:
the power supply conversion module, the first signal acquisition module and the control module are started to operate, after the second signal acquisition module and the IGBT module are electrified, the control module judges whether the system is electrified at high voltage, and if the system is judged to be electrified at high voltage, the IGBT module is controlled to operate; then, the states of the power conversion module and the IGBT module are monitored through the control module, and when the states of the power conversion module and the IGBT module are monitored to be normal, the rotary excitation module is controlled to operate so as to control the motor to start to operate; finally, the states of the power conversion module, the IGBT module and the rotary excitation module are monitored through the control module, and when the states of the power conversion module, the IGBT module and the rotary excitation module are all normal, the second signal acquisition module is controlled to operate so as to monitor the motor operation process, and the safety in the motor control process is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a motor power control system according to an embodiment of the present invention;
FIG. 2 is a flowchart of a power-on phase of a motor power control system according to an embodiment of the present invention;
FIG. 3 is a flowchart of a power-down phase of a motor power control system according to an embodiment of the present invention;
FIG. 4 is a flow chart of a control method of a motor power supply control system according to an embodiment of the invention;
Fig. 5 is a schematic diagram of a control device structure of a motor power supply control system according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention at least solves the technical problem of low safety when controlling a motor in the related technology by providing the motor power supply system, the control method and the control equipment thereof.
The technical scheme provided by the embodiment of the invention aims to solve the technical problems, and the overall thought is as follows:
After the power conversion module, the first signal acquisition module and the control module are started to operate, and the second signal acquisition module and the IGBT module are electrified, judging whether the system is electrified at high voltage or not through the control module, if the system is judged to be electrified at high voltage, controlling the IGBT module to operate, and monitoring the states of the power conversion module and the IGBT module. When the states of the power conversion module and the IGBT module are monitored to be normal, the rotary excitation module is controlled to operate so as to control the motor to start and operate, and the states of the power conversion module, the IGBT module and the rotary excitation module are monitored. And when the states of the power supply conversion module, the IGBT module and the rotary excitation module are normal, controlling the second signal acquisition module to operate so as to monitor the operation process of the motor.
After the rotary excitation module, the power supply conversion module, the first signal acquisition module, the second signal acquisition module and the control module start to operate, the control module judges that the system finishes high-voltage power down, controls the IGBT module to stop operating, and judges whether the system meets the low-voltage power down condition; if the system meets the low-voltage power-down condition, sequentially controlling the second signal acquisition module and the rotary excitation module to stop running, and judging whether the system meets the dormancy condition; if the system does not meet the dormancy condition, the control module, the first signal acquisition module and the power conversion module are controlled to stop running, so that the motor is controlled to finish powering down and stop running.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
First, the term "and/or" appearing herein is merely an association relationship describing associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be capable of operation in sequences other than those illustrated or otherwise described.
In a first aspect, the present invention provides a motor power supply system, where the motor power supply system can provide electric energy for a motor, and the motor power supply system can control the motor to run when the motor is powered on by low voltage and then high voltage, and control the motor to stop running when the motor is powered off by high voltage and then low voltage, so that safety in a process of controlling the motor is improved.
The motor power supply system can supply power for a driving motor on the new energy automobile, the driving motor can be a synchronous motor or an asynchronous motor, and can supply power for driving motors of other equipment, such as a conveyor belt provided with a permanent magnet synchronous motor.
Referring to fig. 1, the motor power supply control system includes: a control module 100; and a rotary excitation module 200, a power conversion module 300, a first signal acquisition module 400, a second signal acquisition module 500, and an IGBT module 600 connected to the control module 100.
In order to further understand the technical scheme of the embodiment of the invention, the following description is given to the technical scheme by taking a driving motor of which the motor power supply system is applied to a new energy automobile as an example:
In order to enable the power conversion module 300, the rotary excitation module 200, the first signal acquisition module 400, the second signal acquisition module 500, and the IGBT module to be powered on to operate normally, the motor power supply control system may further include an in-vehicle power supply 700.
In a specific implementation process, the vehicle-mounted power supply may be a storage battery, and specifically, the voltage of the storage battery may be 12V. In order to prevent the unstable discharge of the storage battery caused by electromagnetic interference in the discharge process of the storage battery, an EMC (Electro Magnetic Compatibility ) filter can be arranged at the output end of the storage battery.
The current and voltage output by the storage battery are processed by the EMC filter and then provided to the power conversion module 300, the rotary excitation module 200, the first signal acquisition module 400, the second signal acquisition module 500 and the IGBT module 600.
It should be noted that, when the motor power supply system provided by the embodiment of the invention supplies power to the motor, the motor power supply system mainly comprises a power-on stage and a power-off stage.
In the power-on stage, the driver can send an ignition command to the whole vehicle controller through the vehicle key, and after receiving the ignition command, the whole vehicle controller controls the vehicle-mounted power supply to supply power to the power conversion module 300, the second signal acquisition module 500 and the IGBT module 600, so that the power conversion module 300, the second signal acquisition module 500 and the IGBT module 600 are powered on.
Referring to fig. 2, after the power conversion module 300 is powered on, voltage regulation is performed on the connected vehicle power supply to provide the processed power supply to the first signal acquisition module 400 and the control module 100, so that the first signal acquisition module 400 and the control module 100 start to operate.
With continued reference to fig. 1, the first signal acquisition module 400 includes: a current acquisition circuit 401 and a resolver signal acquisition circuit 402; the current acquisition circuit 401 and the rotation signal acquisition circuit 402 are both connected with the control module 100.
The current acquisition circuit 401 is used for acquiring current data of the motor power supply system and feeding back the current data to the control module 100; the rotation signal acquisition circuit 402 is configured to acquire rotation signal data of the motor power supply system, and feed back the rotation signal data to the control module 100.
It should be noted that the current data may include the current values of the second signal acquisition module 500 and the IGBT module 600 during a period of time. The rotation signal data may include a rotation signal of the rotation excitation module 200 over a period of time.
After the power conversion module 300, the first signal acquisition module 400, and the control module 100 complete the startup and operation, the control module 100 is configured to:
And judging whether the whole motor power supply system finishes high-voltage power-on, if so, controlling the operation of the IGBT module 600 and monitoring the states of the power conversion module 300 and the IGBT module 600.
Referring to fig. 1, the IGBT module 600 includes: IGBT drive power supply 601 and IGBT drive circuit 602.
The IGBT driving power supply 601 is connected to the control module 100 and the IGBT driving circuit 602, and is configured to perform voltage regulation processing on the accessed vehicle-mounted power supply under the control of the control module 100, so as to provide the processed power supply to the IGBT driving circuit 602; and also for storing electrical energy for turning off the IGBT driving circuit 602. The IGBT driving circuit 602 is used to drive the motor to operate.
Specifically, the control module 100 may determine whether the motor power supply system is powered up at high voltage according to the current data. And, when it is determined that the motor power supply system does not complete the high-voltage power-on, the control module 100 may further control the signal acquisition module and the IGBT module 600 to stop running, so as to control the motor power supply system to enter a power-on waiting mode, until it is determined that the motor power supply system completes the high-voltage power-on again, and further reduce the power consumption of the whole motor power supply system when the motor does not work.
Specifically, the control module 100 may monitor the states of the power conversion module 300 and the IGBT module 600 according to the current data. If the power conversion module 300 or the IGBT module 600 is detected to work abnormally, the motor power supply system is controlled to enter a fault mode. In the fault mode, the motor power supply system may send fault information and control the power conversion module 300 and/or the IGBT module 600, which are abnormally operated, to stop operating, so as to avoid accidental damage of the motor.
If the states of the power conversion module 300 and the IGBT module 600 are monitored to be normal, the control module 100 controls the operation of the rotary excitation module 200, and monitors the states of the power conversion module 300, the IGBT module 600, and the rotary excitation module 200.
Referring to fig. 1, the rotary excitation module 200 includes: a rotary excitation power supply 201 and a rotary excitation circuit 202.
The rotary excitation power supply 201 is connected with the control module 100, and is used for performing voltage regulation processing on the accessed vehicle-mounted power supply under the control of the control module 100 so as to provide the processed power supply to the rotary excitation circuit. The rotary excitation circuit 202 is connected with a rotary excitation power supply and is used for providing an excitation power supply required by the work of the motor.
Specifically, the control module 100 may monitor the states of the power conversion module 300, the IGBT module 600, and the rotary excitation module 200 according to the current data and the rotary signal data. If one or more of the power conversion module 300, the IGBT module 600, and the rotary excitation module 200 are monitored to be abnormal, the motor power supply system is controlled to enter a fault mode.
If the states of the power conversion module 300, the IGBT module 600 and the rotary excitation module 200 are all normal, the second signal acquisition module 500 is controlled to operate, and after the second signal acquisition module 500 operates, the motor is powered on.
With continued reference to fig. 1, the second signal acquisition module 500 includes: motor temperature acquisition circuit 501, voltage acquisition circuit 502 and IGBT temperature acquisition circuit 503. The motor temperature acquisition circuit 501, the voltage acquisition circuit 502 and the IGBT temperature acquisition circuit 503 are all connected to the control module 100.
The motor temperature acquisition circuit 501 is configured to acquire first actual temperature data of the motor, and feed back the first actual temperature data to the control module 100; the voltage acquisition circuit 502 is used for acquiring voltage data of the motor power supply system and feeding back the voltage data to the control module 100; the IGBT temperature acquisition circuit 503 is configured to acquire second actual temperature data of the IGBT module 600, and feed back the second actual temperature data to the control module 100.
It should be noted that the motor temperature data may include a temperature value of the motor over a period of time. The voltage data may include the voltage values of the rotary excitation module 200 and the IGBT module 600 over a period of time. The IGBT temperature data may include a temperature value of the IGBT module 600 over a period of time.
In the power-down stage, a power-down instruction may be sent to the control module 100 by the vehicle controller, and the control module 100 responds to the power-down instruction to control the motor power supply system to perform high-voltage power-down.
Specifically, the IGBT driving circuit 602 may be controlled to be turned off by using the electric energy stored in the IGBT driving power supply 601, so as to perform high voltage down on the motor power supply system.
Specifically, the control module 100 may determine whether the motor power supply system completes the high voltage reduction according to the current data.
Referring to fig. 3, if the control module 100 determines that the motor power supply system does not complete the high voltage reduction, the motor power supply system is controlled to enter a normal operation mode. In the normal operation mode, the rotary excitation module 200, the power conversion module 300, the first signal acquisition module 400, the second signal acquisition module 500 and the IGBT module 600 are all restored to normal operation, so that abnormal shutdown of the motor is avoided, and further reliability in the working process of the motor is improved.
If the control module 100 determines that the motor power supply system completes the high voltage down, the IGBT module 600 is controlled to stop operating, and determines whether the motor power supply system satisfies the low voltage down condition.
Specifically, the control module 100 may determine, according to the voltage data, whether the motor power supply system completes the low voltage reduction. If the motor power supply system meets the low-voltage power-down condition, the second signal acquisition module 500 and the rotary excitation module 200 are sequentially controlled to stop running, and whether the motor power supply system meets the sleep condition is judged.
And if the motor power supply system does not meet the low-voltage power-down condition, controlling the motor power supply system to enter a power-down waiting mode until the motor power supply system is judged to meet the low-voltage power-down condition again.
Specifically, the control module 100 may receive a flameout instruction sent from the whole vehicle controller, and if the control module 100 receives the flameout instruction, it is determined that the motor power supply system meets the sleep condition. The flameout command can be generated by the vehicle controller in response to flameout operation of a driver.
If the control module 100 determines that the motor power supply system does not meet the sleep condition, the control module 100, the first signal acquisition module 400, and the power conversion module 300 stop operating, thereby completing the power-down control of the motor.
If the control module 100 determines that the motor power supply system satisfies the sleep condition, the motor power supply system is controlled to enter the sleep mode to reduce the power consumption of the entire motor power supply system when the motor is not operating. Until the motor power supply system does not meet the sleep condition.
It should be noted that, the control module 100 may be a CPU (Central Processing Unit ). The power conversion module 300 may convert the vehicle power into 1.25V power and 5V power, where both the 1.25V power and the 5V power may be provided to the control module 100, so that the control module 100 may work normally; the 5V power supply may also power the first signal acquisition module 400.
In a second aspect, based on the same inventive concept, an embodiment of the present invention provides a control method of a motor power supply system, which is applied to any one of the motor control systems in the first aspect.
Referring to fig. 4, the control method includes the following steps:
step S801: the power conversion module 300, the first signal acquisition module 400 and the control module 100 are controlled to start to operate, and the second signal acquisition module 500 and the IGBT module 600 are controlled to be powered on.
Step S802: judging whether the motor power supply system finishes high-voltage power-on, if so, controlling the operation of the IGBT module 600 and monitoring the states of the power conversion module 300 and the IGBT module 600.
Specifically, when it is determined that the system does not complete high-voltage power-on, the signal acquisition module and the IGBT module 600 are controlled to stop operating, and the system is controlled to enter a power-on waiting mode.
Step S803: when the states of the power conversion module 300 and the IGBT module 600 are monitored to be normal, the operation of the rotary excitation module 200 is controlled, and the states of the power conversion module 300, the IGBT module 600, and the rotary excitation module 200 are monitored.
Specifically, when one or more of the power conversion module 300, the IGBT module 600, and the rotary excitation module 200 are monitored to be abnormal, the control system enters a fault mode.
Step S804: when the states of the power conversion module 300, the IGBT module 600 and the rotary excitation module 200 are all normal, the second signal acquisition module 500 is controlled to operate.
Since the control method of the motor power supply system described in this embodiment is a method for implementing the control of the motor power supply system in this embodiment, based on the control method of the motor power supply system described in this embodiment, those skilled in the art can understand the specific implementation of the method of this embodiment and various modifications thereof, so how this method is implemented in this embodiment will not be described in detail herein. The method for controlling the motor power supply system in the embodiment of the present invention is within the scope of the present invention.
In a third aspect, based on the same inventive concept, an embodiment of the present invention provides a control apparatus of a motor power supply system.
Referring to fig. 5, a control device provided in an embodiment of the present invention includes: the system comprises a memory 901, a processor 902 and code stored on the memory and executable on the processor 902, wherein the processor 902 implements control of any of the foregoing motor power systems when the code is executed.
Where in FIG. 5, a bus architecture (represented by bus 900), the bus 900 may include any number of interconnected buses and bridges, with the bus 900 linking together various circuits, including one or more processors, represented by processor 902, and memory, represented by memory 901. Bus 900 may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., as are well known in the art and, therefore, will not be described further herein. The bus interface 905 provides an interface between the bus 900 and the receiver 903 and the transmitter 904. The receiver 903 and the transmitter 904 may be the same element, i.e. a transceiver, providing a unit for communicating with various other apparatus over a transmission medium. The processor 902 is responsible for managing the bus 900 and general processing, while the memory 901 may be used to store data used by the processor 902 in performing operations.
The technical scheme provided by the embodiment of the invention at least has the following technical effects or advantages:
1. In the motor power supply system disclosed by the invention, after the power conversion module 300, the first signal acquisition module 400 and the control module 100 start to operate, and the second signal acquisition module 500 and the IGBT module 600 are electrified, the control module 100 judges whether the system is electrified at high voltage, and if the system is judged to be electrified at high voltage, the IGBT module 600 is controlled to operate, and the states of the power conversion module 300 and the IGBT module 600 are monitored. When the states of the power conversion module 300 and the IGBT module 600 are monitored to be normal, the rotary excitation module 200 is controlled to operate so as to control the motor to start to operate, and the states of the power conversion module 300, the IGBT module 600 and the rotary excitation module 200 are monitored. When the states of the power conversion module 300, the IGBT module 600 and the rotary excitation module 200 are normal, the second signal acquisition module 500 is controlled to operate so as to monitor the operation process of the motor, and the safety of the motor in the power-on process is improved.
2. After the rotary excitation module 200, the power conversion module 300, the first signal acquisition module 400, the second signal acquisition module 500 and the control module 100 start to operate, the control module 100 judges that the system finishes high voltage down, and then controls the IGBT module 600 to stop operating and judges whether the system meets the low voltage down condition; if the system meets the low-voltage power-down condition, sequentially controlling the second signal acquisition module 500 and the rotary excitation module 200 to stop running, and judging whether the system meets the dormancy condition; if the system does not meet the sleep condition, the control module 100, the first signal acquisition module 400 and the power conversion module 300 are controlled to stop running, so that the motor is controlled to finish powering down and stop running, and the safety in the powering down process of the motor is improved.
3. The control system enters the power-on waiting mode, the power-on waiting mode and the dormant mode, and when the motor does not work, the electric energy consumption of the whole motor power supply system is effectively reduced.
4. By monitoring the states of the power conversion module 300 and the IGBT module 600, when it is monitored that the power conversion module 300 or the IGBT module 600 is abnormal, the motor power supply system is controlled to enter a fault mode. In the fault mode, the motor power supply system can send fault information and control the power conversion module 300 and/or the IGBT module 600 with abnormal operation to stop working, so that accidental damage to the motor is avoided.
It will be appreciated by those skilled in the art that embodiments of the invention may be provided as a method, system, or computer product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the invention may take the form of a computer product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer instructions. These computer instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. A motor power system, the system comprising: a control module; the rotary variable excitation module, the power conversion module, the first signal acquisition module, the second signal acquisition module and the IGBT module are connected with the control module;
After the power conversion module, the first signal acquisition module and the control module start to operate, and the second signal acquisition module and the IGBT module are electrified, the control module is used for:
judging whether the system finishes high-voltage power-on, if so, controlling the IGBT module to operate, and monitoring the states of the power conversion module and the IGBT module;
when the states of the power conversion module and the IGBT module are monitored to be normal, controlling the rotary excitation module to operate, and monitoring the states of the power conversion module, the IGBT module and the rotary excitation module;
When the states of the power supply conversion module, the IGBT module and the rotary excitation module are normal, controlling the second signal acquisition module to operate;
Wherein, the first signal acquisition module includes: the current acquisition circuit and the rotary-change signal acquisition circuit; the second signal acquisition module includes: the motor temperature acquisition circuit, the voltage acquisition circuit and the IGBT temperature acquisition circuit.
2. The electric motor power system of claim 1, wherein the control module is further configured to:
When the fact that the system is not complete in high-voltage power-on is judged, the signal acquisition module and the IGBT module are controlled to stop running, and the system is controlled to enter a power-on waiting mode; and
And controlling the system to enter a fault mode when one or more of the power conversion module, the IGBT module and the rotary excitation module are abnormal.
3. The motor power supply system of claim 1, wherein after the rotary excitation module, the power conversion module, the first signal acquisition module, the second signal acquisition module, and the control module are started to operate, the control module is further configured to:
After judging that the system finishes high-voltage down, controlling the IGBT module to stop running, and judging whether the system meets a low-voltage down condition;
If the system meets the low-voltage down condition, sequentially controlling the second signal acquisition module and the rotary excitation module to stop running, and judging whether the system meets a dormancy condition;
And if the system does not meet the dormancy condition, controlling the control module, the first signal acquisition module and the power conversion module to stop running.
4. A motor power system as claimed in claim 3, wherein the control module is further configured to:
When the system is judged to be not complete in high-voltage power down, controlling the system to enter a normal operation mode;
when the system is judged not to meet the low-voltage power-down condition, controlling the system to enter a power-down waiting mode; and
And when judging that the system meets the sleep condition, controlling the system to enter a sleep mode.
5. The motor power supply system according to any one of claims 1-2, wherein the power conversion module is configured to:
and performing voltage regulation processing on the accessed vehicle-mounted power supply to provide the processed power supply for the control module and the first signal acquisition module.
6. The motor power supply system according to any one of claims 1-2, characterized in that the rotary excitation module includes: a rotary excitation power supply and a rotary excitation circuit;
the rotary excitation power supply is connected with the control module and used for carrying out voltage regulation treatment on the accessed vehicle-mounted power supply under the control of the control module so as to provide the treated power supply for the rotary excitation circuit;
The rotary excitation circuit is connected with the rotary excitation power supply and is used for providing excitation power supply required by the work of the motor.
7. The motor power supply system according to any one of claims 1-2, wherein the IGBT module includes: IGBT driving power supply and IGBT driving circuit;
The IGBT driving power supply is connected with the control module and the IGBT driving circuit and is used for carrying out voltage regulation treatment on the accessed vehicle-mounted power supply under the control of the control module so as to provide the treated power supply for the IGBT driving circuit; the power supply circuit is also used for storing power for turning off the IGBT driving circuit;
and the IGBT driving circuit is used for driving the motor to work.
8. The motor power supply system according to any one of claims 1-2, wherein the first signal acquisition module includes: the current acquisition circuit and the rotary-change signal acquisition circuit; the current acquisition circuit and the rotation signal acquisition circuit are connected with the control module;
the current acquisition circuit is used for acquiring current data of the system and feeding the current data back to the control module;
The system comprises a control module, a rotation signal acquisition circuit, a rotation signal feedback circuit and a control module, wherein the rotation signal acquisition circuit is used for acquiring rotation signal data of the system and feeding back the rotation signal data to the control module;
The control module is specifically configured to: and judging whether the system is powered on at high voltage or not according to the current data and the rotation signal data, and monitoring the states of the power conversion module, the IGBT module and the rotation excitation module.
9. A control method of a motor power supply system, characterized by being applied to the motor power supply system according to any one of claims 1 to 8, the control method comprising:
the power conversion module, the first signal acquisition module and the control module are controlled to start running, and the second signal acquisition module and the IGBT module are controlled to be electrified;
judging whether the system finishes high-voltage power-on, if so, controlling the IGBT module to operate, and monitoring the states of the power conversion module and the IGBT module;
when the states of the power conversion module and the IGBT module are monitored to be normal, controlling the rotary excitation module to operate, and monitoring the states of the power conversion module, the IGBT module and the rotary excitation module;
When the states of the power supply conversion module, the IGBT module and the rotary excitation module are normal, controlling the second signal acquisition module to operate;
Wherein, the first signal acquisition module includes: the current acquisition circuit and the rotary-change signal acquisition circuit; the second signal acquisition module includes: the motor temperature acquisition circuit, the voltage acquisition circuit and the IGBT temperature acquisition circuit.
10. A control apparatus of a motor power supply system, applied to the motor power supply system according to any one of claims 1 to 8, comprising: a memory, a processor and code stored on said memory and executable on said processor, characterized in that said processor, when executing said code, implements the control of the system according to any one of claims 1-8.
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| CN105162370A (en) * | 2015-09-29 | 2015-12-16 | 东风商用车有限公司 | Switched reluctance motor controller for hybrid electric vehicle and control method thereof |
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| CN106411191B (en) * | 2016-08-24 | 2019-08-27 | 中国人民解放军海军工程大学 | Permanent magnet machine rotor position-speed detector |
| CN106533277B (en) * | 2016-12-28 | 2019-04-09 | 北京新能源汽车股份有限公司 | Method and device for checking zero position of rotary transformer of motor |
| CN110729880B (en) * | 2019-11-18 | 2021-06-11 | 阳光电源股份有限公司 | Driving circuit of power conversion device and application device thereof |
| CN111231762A (en) * | 2020-03-23 | 2020-06-05 | 浙江阿尔法汽车技术有限公司 | Power integration control system and control method for new energy automobile |
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| CN105162370A (en) * | 2015-09-29 | 2015-12-16 | 东风商用车有限公司 | Switched reluctance motor controller for hybrid electric vehicle and control method thereof |
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