CN113541447A - Power supply circuit and power supply method of aircraft motor driver and aircraft - Google Patents
Power supply circuit and power supply method of aircraft motor driver and aircraft Download PDFInfo
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- CN113541447A CN113541447A CN202110825445.3A CN202110825445A CN113541447A CN 113541447 A CN113541447 A CN 113541447A CN 202110825445 A CN202110825445 A CN 202110825445A CN 113541447 A CN113541447 A CN 113541447A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
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Abstract
The application relates to a power supply circuit and a power supply method of an aircraft motor driver and an aircraft. The circuit includes: a power supply for outputting a power supply voltage; the first power supply conversion module is electrically connected to the power supply, receives the power supply voltage and converts and outputs at least two different first power supply voltages; the control circuit module is electrically connected to the first power conversion module and used for receiving the at least two different first power supply voltages; the second power supply conversion module is electrically connected to the control circuit module, receives one of the first power supply voltages output by the control circuit module, and converts and outputs at least two different second power supply voltages; and the driving circuit module is electrically connected to the second power conversion module and receives the at least two different second power supply voltages. The scheme provided by the application can reduce potential failure fault points, improve the operation reliability of the motor and improve the reliability of the aircraft.
Description
Technical Field
The application relates to the technical field of motor control, in particular to a power supply circuit and a power supply method of an aircraft motor driver and an aircraft.
Background
The flying action of the aircraft is driven and executed by the operation of the motor, and the flying action of the aircraft can be changed by adjusting the operation of the motor. The regulation control of the motor operation can be driven and executed by the motor driving circuit module. The motor driving circuit module can adjust and control the rotating speed of the motor according to the control signal output by the motor control circuit module. The electrical components comprising the motor control circuit module are generally referred to as motor controllers and the electrical components comprising the motor drive circuit module are generally referred to as motor drivers. In the related art, the motor control circuit module and the motor drive circuit module may be collectively referred to as a motor controller or a motor driver.
At present, in order to supply power to a motor control circuit module and a motor driving circuit module, a power conversion module is generally used to generate a plurality of output voltages with different voltage levels, and the output voltages with different voltage levels are correspondingly transmitted to the motor control circuit module and the motor driving circuit module through a plurality of cables.
However, the presence of a high number of cables means that there are a high number of failure points with potential risks, thus reducing the reliability of the operation of the electric machine and also of the aircraft.
Disclosure of Invention
In order to solve or partially solve the problems in the related art, the application provides a power supply circuit of an aircraft motor driver, a power supply method and an aircraft, which can reduce potential failure fault points, improve the operation reliability of a motor and improve the reliability of the aircraft.
The present application provides in a first aspect a power supply circuit for an aircraft motor driver, comprising:
a power supply for outputting a power supply voltage;
the first power supply conversion module is electrically connected to the power supply, receives the power supply voltage and converts and outputs at least two different first power supply voltages;
the control circuit module is electrically connected to the first power conversion module and used for receiving the at least two different first power supply voltages;
the second power supply conversion module is electrically connected to the control circuit module, receives one of the first power supply voltages output by the control circuit module, and converts and outputs at least two different second power supply voltages;
and the driving circuit module is electrically connected to the second power conversion module and receives the at least two different second power supply voltages.
In one embodiment, the first power conversion module converts and outputs at least two different first power supply voltages, and at least one of the first power supply voltages is electrically isolated from the power supply voltage.
In one embodiment, the second power conversion module converts and outputs at least two different second power supply voltages, and at least one of the second power supply voltages is electrically isolated from the first power supply voltage received by the second power conversion module.
In one embodiment, the second power conversion module converts and outputs at least two different second power supply voltages, and includes:
the second power supply conversion module outputs a second power supply voltage with the same voltage value as the received first power supply voltage and a second power supply voltage with a voltage value as a preset target voltage value.
In an embodiment, the second power conversion module includes an isolation transformer, and the isolation transformer performs a step-down or step-up process on the received first power supply voltage, and outputs a second power supply voltage with an isolated voltage value equal to a preset target voltage value.
In one embodiment, the at least two different first supply voltages comprise three different first supply voltages; and/or the presence of a gas in the gas,
the at least two different second supply voltages comprise two different second supply voltages.
A second aspect of the application provides a method of powering an aircraft motor drive, comprising:
the first power supply conversion module receives power supply voltage output by a power supply and converts and outputs at least two different first power supply voltages to the control circuit module;
receiving one of the first power supply voltages output by the control circuit module through a second power supply conversion module, and converting and outputting at least two different second power supply voltages;
and outputting the at least two different second power supply voltages to the driving circuit module.
In one embodiment, the converting outputs at least two different second supply voltages, including:
and converting and outputting a second power supply voltage with the same voltage value as the first power supply voltage received by the second power supply conversion module, and converting and outputting a second power supply voltage with a voltage value of a preset target voltage value.
In one embodiment, the converting the second supply voltage to output a voltage value of the preset target voltage value includes:
and carrying out voltage reduction or voltage boosting treatment on the received first power supply voltage through an isolation transformer arranged in the second power supply conversion module, and outputting a second power supply voltage with an isolated voltage value as a preset target voltage value.
A third aspect of the application provides a manned aircraft comprising a power supply circuit as described above.
The technical scheme provided by the application can comprise the following beneficial effects:
the application provides an aircraft motor driver's supply circuit, through first power conversion module with the mains voltage conversion of power output to at least two different first supply voltage to supply power to control circuit module. And a second power supply conversion module connected with the control circuit module is used for receiving one of the first power supply voltages and converting the first power supply voltage into at least two different second power supply voltages so as to supply power to the driving circuit module. The power supply circuit effectively reduces potential failure fault points, improves the operation reliability of the motor, enhances the structural compactness and improves the reliability of the aircraft.
Further, in the power supply circuit provided in the embodiment of the present application, among at least two different second power supply voltages output by the second power conversion module, at least one second power supply voltage is electrically isolated from the first power supply voltage received by the second power conversion module, so that the operation safety of the driving circuit module is effectively protected.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
Fig. 1 is a schematic structural diagram of a power supply circuit of an aircraft motor driver according to an embodiment of the present application;
FIG. 2 is another schematic diagram of a power supply circuit for an aircraft motor drive according to an embodiment of the present disclosure;
fig. 3 is a schematic flow chart of a power supply method for an aircraft motor driver according to an embodiment of the present application.
Detailed Description
Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While embodiments of the present application are illustrated in the accompanying drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the related art, one power conversion module is generally used to generate a plurality of output voltages with different voltage levels, and the output voltages with different voltage levels are correspondingly transmitted to the motor control circuit module and the motor driving circuit module through a plurality of cables. The presence of a greater number of cables means that there are more failure points with potential risks, thus reducing the reliability of the operation of the motor and also of the aircraft.
In view of the above problems, an embodiment of the present application provides a power supply circuit for an aircraft motor driver, which can reduce potential failure fault points, improve motor operation reliability, and improve reliability of an aircraft.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a power supply circuit of a motor driver according to an embodiment of the present application.
Referring to fig. 1, the power supply circuit of the motor driver provided in this embodiment includes a power supply 101, a first power conversion module 102, a control circuit module 103, a second power conversion module 104, and a driving circuit module 105.
And a power supply 101 for outputting a power supply voltage.
The first power conversion module 102 is electrically connected to the power source 101, receives a power voltage, and converts and outputs at least two different first power supply voltages.
The control circuit module 103 is electrically connected to the first power conversion module 102, and receives at least two different first power supply voltages.
The second power conversion module 104 is electrically connected to the control circuit module 103, receives one of the first power supply voltages output by the control circuit module 103, and converts the first power supply voltage into at least two different second power supply voltages.
The driving circuit module 105 is electrically connected to the second power conversion module 104 and receives at least two different second power supply voltages.
The power supply circuit of the aircraft motor driver provided by the application converts the power supply voltage output by the power supply 101 into at least two different first power supply voltages through the first power supply conversion module 102 so as to supply power to the control circuit module 103. The second power conversion module 104 connected to the control circuit module 103 is used to receive one of the first power supply voltages and convert the received first power supply voltage into at least two different second power supply voltages, so as to supply power to the driving circuit module 105. The power supply circuit effectively reduces potential failure fault points, improves the operation reliability of the motor, enhances the structural compactness and improves the reliability of the aircraft.
The power supply 101 is configured to output a power supply voltage required by an input terminal of the first power conversion module 102. The power source 101 may be a battery, and the power source voltage output by the power source 101 may be a direct current voltage. For example, the power source 101 may be an external battery capable of outputting 750V dc voltage. The power source 101 is electrically connected to the first power conversion module 102, and the power source 101 provides a power voltage to an input terminal of the first power conversion module 102.
The first power conversion module 102 is configured to convert a power voltage received by an input terminal thereof into at least two different first power supply voltages, and transmit the at least two different first power supply voltages to the control circuit module 103. The first power conversion module 102 may include an isolation transformer, and the isolation transformer may be used to perform step-down or step-up operation, and simultaneously implement voltage isolation. In one embodiment, the first power conversion module 102 may convert the received dc power voltage into a plurality of dc first power supply voltages of different voltage levels. For example, the first power conversion module 102 may receive a 750V dc voltage, step down the voltage to a different dc voltage such as 5V, -5V, 15V, -15V, 20V, and output the dc voltage to the control circuit module 103. The first power conversion module 102 may include a switch control chip, and the switch control chip may send a switch signal for starting and stopping the isolation transformer, so as to control the operation of the isolation transformer. The switch control chip may further send a switch signal corresponding to the on/off of the circuit, so as to control the on/off of each first power supply voltage at the output end of the first power conversion module 102. Further, in an embodiment, the first power conversion module 102 may include a current detection circuit, a voltage feedback circuit, and other functional circuits, so as to monitor a real-time status of each current and voltage in the first power conversion module 102 and output a corresponding feedback signal to the outside.
Further, in one embodiment, the first power conversion module 102 outputs at least two different first power supply voltages, and at least one of the first power supply voltages is electrically isolated from the power supply voltage. Correspondingly, the control circuit module 103 receives at least two first supply voltages that are electrically isolated from the supply voltage. In this embodiment, an isolation transformer may be disposed within the first power conversion module 102 to electrically isolate one or more first supply voltages at the output of the first power conversion module 102 from the supply voltage. The control circuit module 103 may receive one or more first supply voltages having an isolation protection effect, and the control circuit module 103 may also receive one or more first supply voltages that are not electrically isolated from the supply voltage. For example, the control circuit module 103 may receive a first supply voltage of 5V, 15V, and-15V where electrical isolation has been formed. Like this, when receiving at control circuit module 103 relative mains voltage electrically isolated's at least one first supply voltage, if fault conditions such as short circuit take place for the input of first power conversion module 102, can avoid receiving the damage with control circuit module 103 that first power conversion module 102 output is connected to ensure control circuit module 103's operational safety, and can also effectively resist certain degree external environment and disturb, strengthen control circuit module 103's operational stability.
Further, the first power conversion module 102 may output at least two different first power supply voltages, and each of the first power supply voltages is electrically isolated from the power supply voltage. Correspondingly, the control circuit module 103 may receive respective first supply voltages that are electrically isolated from the supply voltage. In this way, the operational safety of the control circuit module 103 is further ensured.
The control circuit module 103 is configured to output a control signal to the driving circuit module 105, so that the driving circuit module 105 regulates the operation of the control motor. The control circuit module 103 receives at least two different first supply voltages, and at least one of the at least two different first supply voltages is used to ensure the power supply requirement of the control circuit module 103 itself. The control circuit module 103 may use the received one or more first power supply voltages to power one of the functional circuit modules in the control circuit module 103, and the control circuit module 103 may also use the received one or more first power supply voltages to power a plurality of functional circuit modules in the control circuit module 103, thereby ensuring normal and stable operation of the control circuit module 103. For example, the control circuit module 103 receives the first dc power supply voltages of 15V and-15V output by the first voltage conversion module, so as to meet the power supply requirement of the control circuit module 103 itself. The control circuit module 103 is further configured to serve as an intermediate bridge for outputting at least one first power supply voltage to an input terminal of the second power conversion module 104.
The second power conversion module 104 is configured to receive a first power supply voltage transmitted by the control circuit module 103, and convert the first power supply voltage into at least two different second power supply voltages for outputting to the driving circuit module 105. In other embodiments, the second power conversion module 104 may further receive a plurality of different first power voltages transmitted by the control circuit module 103, and convert the plurality of different first power voltages into at least two different second power voltages according to the different first power voltages.
In one embodiment, the control circuit module 103 outputs one of the first supply voltages through the connection terminal. The second power conversion module 104 receives one of the first power supply voltages output by the connection terminals of the control circuit module 103, and converts and outputs at least two different second power supply voltages. For example, the control circuit module 103 outputs a first dc supply voltage of 5V through the connection terminal, and the second power conversion module 104 may receive the first dc supply voltage of 5V output by the connection terminal of the control circuit module 103 and convert the first dc supply voltage into second supply voltages of 5V and 20V. The connection terminal plays a role in transmitting the first power supply voltage, so that the control circuit module 103 becomes an intermediate bridge and realizes a function of transmitting the first power supply voltage.
Further, in one embodiment, the second power conversion module 104 outputs at least two different second power supply voltages, and at least one of the second power supply voltages is electrically isolated from the first power supply voltage received by the second power conversion module 104. In this embodiment, an isolation transformer may be disposed within the second power conversion module 104 to electrically isolate one or more second supply voltages at the output of the second power conversion module 104 from the first supply voltage at the input of the second power conversion module 104. The driving circuit module 105 may receive one or more second power supply voltages with isolation protection, and the driving circuit module 105 may also receive one or more first power supply voltages without forming electrical isolation with respect to the first power supply voltage at the input terminal of the second power conversion module 104. For example, the driving circuit module 105 may receive one of the 20V second supply voltages that has formed the electrical isolation. Thus, when the driving circuit module 105 receives at least one second power supply voltage electrically isolated from the input terminal of the second power conversion module 104, if the input terminal of the second power conversion module 104 is short-circuited or otherwise, the driving circuit module 105 connected to the output terminal of the second power conversion module 104 can be prevented from being damaged, thereby ensuring the operational safety of the driving circuit module 105. And can also effectively resist external environment interference to a certain extent, and enhance the operation stability of the driving circuit module 105.
Further, in one embodiment, the second power conversion module 104 outputs at least two different second power supply voltages, including: the second power conversion module 104 outputs a second power supply voltage having the same voltage value as the received first power supply voltage and a second power supply voltage having a voltage value equal to the preset target voltage value. For example, the second power conversion module 104 may output a second supply voltage of 5V, so that the voltage value of the second supply voltage is the same as the voltage value of the first supply voltage of 5V received by the second power conversion module 104. For another example, the second power conversion module 104 may output a second power supply voltage with a preset target voltage value of 20V.
Further, in one embodiment, the second power conversion module 104 may use the received first power voltage as a second power voltage to be output. That is, the second power conversion module 104 directly outputs the received first power supply voltage to the driving circuit board. For example, the second power conversion module 104 outputs the first supply voltage of 5V as one of the second supply voltages to the driving circuit board. In this way, the second power conversion module 104 outputs a second power supply voltage having the same voltage value as the received first power supply voltage in the above manner.
Further, in one embodiment, the second power conversion module 104 includes an isolation transformer, and performs a voltage reduction or voltage increase process on the received first power supply voltage through the isolation transformer, and outputs a second power supply voltage with an isolated voltage value equal to a preset target voltage value. That is, the second power conversion module 104 may use the received first power voltage as a second power voltage with a voltage value to be output being a preset target voltage value after performing voltage reduction or voltage boosting. In this embodiment, the manner of performing the step-down or step-up process includes: the buck or boost process is performed using an isolation transformer in the second power conversion module 104. That is, the second power conversion module 104 may be internally provided with an isolation transformer, through which the first power supply voltage is stepped down or stepped up to the second power supply voltage of the preset target voltage value. In one embodiment, the isolation transformer is a step-up isolation transformer, and steps up the first power supply voltage received by the second power conversion module 104 to a second power supply voltage with a preset target voltage value. For example, the second power conversion module 104 boosts the first supply voltage of 5V to a second supply voltage with one of preset target voltage values of 20V through an isolation transformer, and outputs the second supply voltage to the driving circuit module 105. Because the isolation transformer has an isolation circuit, relative electrical isolation of the input terminal from the output terminal voltage can be achieved. An isolation transformer is a transformer used to electrically isolate two or more circuits in a coupled relationship. That is, a second power supply voltage having a voltage value electrically isolated from the first power supply voltage received by the second power conversion module 104 and equal to the preset target voltage value may be output through the isolation transformer. The second power conversion module 104 may include a switch control chip, and the second power conversion module 104 controls to send various switch information through the switch control chip, so as to complete the corresponding voltage boosting or voltage reducing work in cooperation with the isolation transformer. For example, the switch control chip may send a switch signal for starting and stopping the isolation transformer, so as to control the operation of the isolation transformer. The switch control chip may further send a switch signal corresponding to the on/off of the circuit, so as to control the on/off of each second power supply voltage at the output end of the second power conversion module 104.
The driving circuit module 105 is used for adjusting the operation of the motor according to the control signal output by the control circuit module 103. The driving circuit module 105 receives at least two different second power supply voltages output by the second power conversion module 104 to ensure the power supply requirement of the driving circuit module 105 itself. In one embodiment, the driving circuit module 105 receives the second supply voltages of 5V and 20V output by the second power supply 101 module, so as to ensure normal and stable operation of the driving circuit module 105 itself.
Further, in one embodiment, the second power conversion module 104 may be embedded in the driving circuit module 105. That is, the driving circuit module 105 and the second power conversion module 104 may be an integrated module. Thus, the compactness of the power supply circuit can be further enhanced. In addition, the electrical gap between the driving circuit module 105 and the second power conversion module 104 can be further reduced, thereby enhancing the reliability of the power supply circuit. In other embodiments, the second power conversion module 104 may be separated from the driving circuit module 105. That is to say, the driving circuit module 105 is relatively independent from the second power conversion module 104, and the driving circuit module 105 and the second power conversion module 104 can be electrically connected through a wire or a socket, so as to facilitate adapting to circuit layouts with different requirements, expand the application range, and meet different application occasions.
It can be understood that, compared to the related art in which the driving circuit module and the control circuit module are connected to one power conversion module through a plurality of cables, the driving circuit module 105 in the present application is powered by an independent second power conversion module 104, and the control circuit module 103 is powered by the first power conversion module 102, thereby forming a distributed voltage variation scheme. In this way, the driving circuit module 105 does not need to use a long cable to introduce a power supply voltage from the power conversion module supplying power to the control circuit module 103, so that the number of cables is reduced, and the electric gap between the driving circuit module 105 and the second power conversion module 104 is small, thereby enhancing the reliability of the circuit. The power supply circuit effectively reduces potential failure fault points, improves the operation reliability of the motor, enhances the structural compactness and improves the reliability of the aircraft.
Fig. 2 is another schematic structural diagram of a power supply circuit of a motor driver according to an embodiment of the present application.
Referring to fig. 2, the power supply circuit of the motor driver provided in this embodiment includes a power supply 101, a first power conversion module 102, a control circuit module 103, a second power conversion module 104, and a driving circuit module 105.
The power supply 101 is used for outputting a power supply voltage of 750V dc. The power supply 101 is configured to output a power supply voltage required by an input terminal of the first power conversion module 102. The power source 101 may be a battery.
The first power conversion module 102 is electrically connected to the power source 101. The first power conversion module 102 receives a 750V dc power voltage and converts and outputs three different first power supply voltages that are completely isolated, including: a first supply voltage of 5 vdc, a first supply voltage of 15 vdc and a first supply voltage of-15 vdc. The first power conversion module 102 may include a current detection circuit, a voltage feedback circuit, and other functional circuits, so as to monitor real-time conditions of each current and voltage in the first power conversion module 102 and output a corresponding feedback signal to the outside.
The control circuit module 103 is electrically connected to the first power conversion module 102. The control circuit module 103 receives three different first power supply voltages, wherein the control circuit module 103 takes one of the 15 vdc first power supply voltages and one-15 vdc first power supply voltage to supply power. The control circuit module 103 is configured to output a control signal to the driving circuit module 105, so that the driving circuit module 105 regulates the operation of the control motor.
The second power conversion module 104 is electrically connected to the control circuit module 103. The second power conversion module 104 receives the first 5V dc power supply voltage output by the control circuit module 103, and converts and outputs two different second power supply voltages, which includes: a 5V DC secondary supply voltage by directly taking 5V DC primary supply voltage, and a boosted and completely isolated 20V DC secondary supply voltage. An isolation transformer may be disposed in the second power conversion module 104, so that a second supply voltage at the output end of the second power conversion module 104 is electrically isolated from a first supply voltage at the input end of the second power conversion module 104. An isolation transformer is a transformer used to electrically isolate two or more circuits in a coupled relationship. The second power conversion module 104 may include a switch control chip, and the switch control chip may send a switch signal for starting and stopping the isolation transformer, so as to control the operation of the isolation transformer. The switch control chip may further send a switch signal corresponding to the on/off of the circuit, so as to control the on/off of each second power supply voltage at the output end of the second power conversion module 104.
The driving circuit module 105, electrically connected to the second power conversion module 104, receives the second supply voltage of 5 vdc and the second supply voltage of 20 vdc that is completely isolated. The driving circuit module 105 is used for adjusting the operation of the motor according to the control signal output by the control circuit module 103.
According to the embodiment, the power supply circuit effectively reduces potential failure fault points, improves the operation reliability of the motor, enhances the structural compactness and improves the reliability of the aircraft.
Corresponding to the power supply circuit embodiment, the application also provides a power supply method of the aircraft motor driver and a corresponding embodiment.
Fig. 3 is a schematic flow chart of a power supply method for an aircraft motor driver according to an embodiment of the present application.
Referring to fig. 3, the present embodiment provides a power supply method for an aircraft motor driver, including:
step S301, receiving the power voltage output by the power supply through the first power conversion module, and converting and outputting at least two different first power supply voltages to the control circuit module.
The power supply is used for outputting power supply voltage required by the input end of the first power supply conversion module. The power source may be a battery and the power voltage output by the power source may be a dc voltage.
The control circuit module is used for outputting a control signal to the driving circuit module so that the driving circuit module adjusts and controls the operation of the motor. The control circuit module receives at least two different first power supply voltages, and at least one first power supply voltage in the at least two different first power supply voltages is used for ensuring the power supply requirement of the control circuit module.
Step S302, receiving one of the first power supply voltages output by the control circuit module through the second power conversion module, and converting and outputting at least two different second power supply voltages.
The control circuit module outputs at least one first power supply voltage to the second power supply conversion module. That is, the second power conversion module may receive one of the first power supply voltages output by the first power conversion module through the control circuit module.
In this step, the converting and outputting at least two different second power supply voltages by the second power conversion module includes: and converting and outputting a second power supply voltage with the same voltage value as the first power supply voltage received by the second power supply conversion module, and converting and outputting a second power supply voltage with a voltage value of a preset target voltage value.
Further, the converting the second supply voltage to output a voltage value as the preset target voltage value includes: and carrying out voltage reduction or voltage boosting treatment on the received first power supply voltage through an isolation transformer arranged in the second power supply conversion module, and outputting a second power supply voltage with an isolated voltage value as a preset target voltage value.
Step S303, outputting at least two different second power supply voltages to the driving circuit module.
In this step, the driving circuit module receives at least two different second power supply voltages to ensure the power supply requirement of the driving circuit module itself. The driving circuit module is used for adjusting the operation of the motor according to the control signal output by the control circuit module.
According to the power supply method of the aircraft motor driver, potential failure fault points in a circuit can be effectively reduced, the operation reliability of the motor is improved, the structure compactness is enhanced, and the reliability of the aircraft is improved.
With regard to the power supply method in the above-described embodiment, the specific manner in which the individual method steps are performed has been described in detail in the embodiment related to the power supply circuit, and will not be elaborated upon here.
The above embodiments describe the power supply circuit of the motor driver provided in the embodiments of the present application, and accordingly, the present application further provides an embodiment of a manned aircraft, where the manned aircraft provided in the embodiments includes the power supply circuit described in any of the above embodiments.
The aircraft provided by the embodiment comprises the power supply circuit shown in fig. 1 or fig. 2. The power supply circuit includes: the power supply comprises a power supply 101, a first power conversion module 102, a control circuit module 103, a second power conversion module 104 and a driving circuit module 105. And a power supply 101 for outputting a power supply voltage. The first power conversion module 102 is electrically connected to the power source 101, receives a power voltage, and converts and outputs at least two different first power supply voltages. The control circuit module 103 is electrically connected to the first power conversion module 102, and receives at least two different first power supply voltages. The second power conversion module 104 is electrically connected to the control circuit module 103, receives one of the first power supply voltages output by the control circuit module 103, and converts the first power supply voltage into at least two different second power supply voltages. The driving circuit module 105 is electrically connected to the second power conversion module 104 and receives at least two different second power supply voltages. The manned aircraft can effectively reduce potential failure fault points in a system circuit, improves the operation reliability of the motor, enhances the structural compactness of the motor, and ensures the flight reliability of the aircraft.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A power supply circuit for an aircraft motor drive, comprising:
a power supply for outputting a power supply voltage;
the first power supply conversion module is electrically connected to the power supply, receives the power supply voltage and converts and outputs at least two different first power supply voltages;
the control circuit module is electrically connected to the first power conversion module and used for receiving the at least two different first power supply voltages;
the second power supply conversion module is electrically connected to the control circuit module, receives one of the first power supply voltages output by the control circuit module, and converts and outputs at least two different second power supply voltages;
and the driving circuit module is electrically connected to the second power conversion module and receives the at least two different second power supply voltages.
2. The power supply circuit of claim 1, wherein:
the first power supply conversion module converts and outputs at least two different first power supply voltages, and at least one first power supply voltage is electrically isolated from the power supply voltage.
3. The power supply circuit of claim 1, wherein:
the second power conversion module converts and outputs at least two different second power supply voltages, and at least one of the second power supply voltages is electrically isolated from the first power supply voltage received by the second power conversion module.
4. The power supply circuit of claim 1, wherein the second power conversion module converts and outputs at least two different second power supply voltages, comprising:
the second power supply conversion module outputs a second power supply voltage with the same voltage value as the received first power supply voltage and a second power supply voltage with a voltage value as a preset target voltage value.
5. The power supply circuit of claim 4, wherein:
the second power conversion module comprises an isolation transformer, and the isolation transformer is used for carrying out voltage reduction or voltage boosting processing on the received first power supply voltage and outputting a second power supply voltage with an isolated voltage value as a preset target voltage value.
6. The power supply circuit according to any one of claims 1 to 5, wherein:
the at least two different first supply voltages comprise three different first supply voltages; and/or the presence of a gas in the gas,
the at least two different second supply voltages comprise two different second supply voltages.
7. A method of powering an aircraft motor drive, comprising:
the first power supply conversion module receives power supply voltage output by a power supply and converts and outputs at least two different first power supply voltages to the control circuit module;
receiving one of the first power supply voltages output by the control circuit module through a second power supply conversion module, and converting and outputting at least two different second power supply voltages;
and outputting the at least two different second power supply voltages to the driving circuit module.
8. The method of claim 7, wherein said converting outputs at least two different second supply voltages, comprising:
and converting and outputting a second power supply voltage with the same voltage value as the first power supply voltage received by the second power supply conversion module, and converting and outputting a second power supply voltage with a voltage value of a preset target voltage value.
9. The power supply method of claim 8, wherein said converting a second power supply voltage having a voltage value equal to the predetermined target voltage value comprises:
and carrying out voltage reduction or voltage boosting treatment on the received first power supply voltage through an isolation transformer arranged in the second power supply conversion module, and outputting a second power supply voltage with an isolated voltage value as a preset target voltage value.
10. A manned vehicle, characterized in that: comprising a supply circuit as claimed in any one of the claims 1-6.
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