CN111817610B - Motor gating device for multiplexing motor driving energy and working method - Google Patents
Motor gating device for multiplexing motor driving energy and working method Download PDFInfo
- Publication number
- CN111817610B CN111817610B CN202010496444.4A CN202010496444A CN111817610B CN 111817610 B CN111817610 B CN 111817610B CN 202010496444 A CN202010496444 A CN 202010496444A CN 111817610 B CN111817610 B CN 111817610B
- Authority
- CN
- China
- Prior art keywords
- motor
- gating
- board
- main control
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The invention discloses a motor gating device for multiplexing motor driving energy and a working method thereof. The motor driving energy of a single set or a small number of sets is used for switching and supplying power to a plurality of sets of driving motors in a time-sharing manner, so that the utilization rate of the motor driving energy can be greatly improved, and the volume and weight of the whole set of motor driving device are reduced.
Description
Technical Field
The invention belongs to the technical field of electric transmission of motor-driven load motion, and particularly relates to a motor gating device for multiplexing motor-driven energy and a working method.
Background
The motor drive is an electric drive technology which drives a load to move by doing work with the help of electromagnetic force, and has huge potential advantages and wide application prospects in military and civil fields such as rail transit, aerospace, industrial automation, weapon launching and the like.
The motor driving device is essentially an energy conversion device for converting electromagnetic energy into kinetic energy for moving the load. In motor driving application occasions, electric energy is generally obtained from a direct current power supply system for a long time with smaller power and is stored in energy storage equipment after certain conversion; after receiving the working command, the energy storage device releases direct current electric energy to the energy conversion device with proper power, the energy conversion device converts the direct current into alternating current with harmonious change of frequency and amplitude, and then releases the electric energy to the driving motor, so that the driving motor generates electromagnetic force to drive the load to move.
In most application occasions, the motor driving working process has the working characteristic of intermittent circulation, which requires that each device in the motor driving system has the short-time repeated operation capability. On one hand, considering the limitations of heat dissipation, load loading speed and the like of the driving motor, in order to ensure the short-time continuous operation of the motor driving system, a plurality of sets of driving motors and loading mechanisms need to be equipped for alternate switching. On the other hand, in order to meet the energy consumption requirement and the instantaneous power output requirement in the motor driving process, the volume and the weight of the motor driving energy are generally larger. In this case, if the motor drive system is provided with the same number of sets of motor drive energy sources as the number of drive motors, the total volume and weight of the motor drive system become excessively large, and the motor drive system is poor in practicability.
Disclosure of Invention
The invention aims to provide a motor gating device for multiplexing motor driving energy and a working method thereof aiming at the defects of the prior art, and solves the problem that a single set of motor driving energy supplies power to a plurality of sets of driving motors in a time-sharing switching mode in a motor driving system.
In order to achieve the purpose, the motor gating device for multiplexing the motor driving energy comprises a power distribution unit, a gating unit, a main control unit and a network switching unit, wherein the power distribution unit supplies power to the gating unit, the main control unit and the network switching unit respectively, the gating unit realizes gating control of a plurality of sets of driving motors, the main control unit realizes real-time control of the motor gating device, and the network switching unit realizes network communication with a motor driving system health network center and a control network center.
Furthermore, the power distribution unit comprises an AC-DC power supply module and two paths of power supply input modules, each path of power supply input module comprises an air switch and an alternating current filter which are sequentially connected in series, the alternating current filter of each path of power supply input module is connected with the AC-DC power supply module, the air switch of one path of power supply input module is connected with one path of power supply input interface, and the air switch of the other path of power supply input module is connected with the other path of power supply input interface; meanwhile, three output interfaces of the AC-DC power supply module are respectively connected with three power supply output interfaces, and the three power supply output interfaces are respectively connected with the gating unit, the main control unit and the network switching unit.
Furthermore, the gating unit comprises an IO light receiving plate, an IO light emitting plate and a circuit bottom plate, the IO light emitting plate converts IO electrical signals from the circuit bottom plate into IO electrical signals and sends the IO electrical signals, the IO light receiving plate converts externally input IO electrical signals into IO electrical signals and sends the IO electrical signals to the circuit bottom plate, and the circuit bottom plate is communicated with the main control unit through an IO interface; the communication output interface of the IO light emission plate is respectively connected with the communication input interfaces of the external motor drive controller and the m driving motors, the communication output interfaces of the external motor drive controller and the m driving motors are respectively connected with the communication input interface of the IO light receiving plate, and m is an integer larger than or equal to 1.
Furthermore, the main control unit comprises a main control board, and the circuit bottom board is in bidirectional communication with the main control board.
Further, the network switching unit comprises a control network switch and a health network switch, the control network switch and the health network switch are in two-way communication with the main control board, the control network switch is in two-way communication with an external motor driving system control network center, and the health network switch is in two-way communication with the external motor driving system health network center.
The method comprises the steps of controlling the on and off of a strong current loop between the motor driving energy and m sets of driving motors in real time according to an m-bit gating control instruction, and carrying out real-time communication with the gated driving motors, wherein the m-bit gating control instruction is represented by m-bit binary numbers X (1), X (2), … and X (m), X (i) is 1 and represents that the ith set of driving motors are gated, X (i) is 0 and represents that the ith set of driving motors are not gated, i is an integer between 1 and m, and m is an integer larger than or equal to 1.
Further, the working method specifically comprises the following steps:
at the initial moment, all the m-bit gating control commands X (1), X (2), … and X (m) are 0, namely all the driving motors are in a non-gated state at the initial moment;
at the working moment, only 1 bit of the m-bit gating control instructions X (1), X (2), … and X (m) is 1, and the rest is 0, namely only one set of driving motors is gated at the working moment, so that the driving energy of the motors is ensured to supply power to one set of driving motors;
at the working moment, the working process of the motor gating device is as follows:
s01, the motor drive control network center sends the m-bit gating control instruction to the main control board in the main control unit through the control network switch;
s02, after receiving and analyzing the m-bit gating control instruction, the main control board in the main control unit sends the m-bit gating control instruction to the circuit bottom board of the gating unit, and the circuit bottom board sends the m-bit gating control instruction to the IO light emitting board and the IO light receiving board;
s03, the IO light receiving board in the gating unit receives a driving motor control instruction from the motor driving controller and sends the driving motor control instruction to the IO light emitting board through the circuit bottom board;
s04, the IO light emitting board in the gating unit gates the driving motor control instruction according to the m-bit gating control instruction, and sends the gated driving motor control instruction to the m sets of driving motors;
s05, the IO light receiving board in the gating unit receives control information from m sets of driving motors and sends the control information of the m sets of driving motors to the main control board in the main control unit 3 through the bottom board, and the IO light receiving board carries out gating processing on the control information of the m sets of driving motors and then sends the control information to the IO light emitting board through the circuit bottom board;
s06, the IO light emitting board in the gating unit sends the drive motor control information after gating processing to the drive motor controller;
and S07, the main control board in the main control unit sends the control information of the m sets of driving motors to the motor driving system health network center through the health network switch.
Compared with the prior art, the invention has the following advantages: the motor gating device for multiplexing the motor driving energy and the working method thereof carry out time-sharing switching power supply to a plurality of sets of driving motors through a single set or a small number of sets of motor driving energy, can greatly improve the utilization rate of the motor driving energy and reduce the volume and the weight of the whole set of motor driving device.
Drawings
Fig. 1 is a block diagram of the motor gating device for multiplexing the motor driving energy according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1, the motor gating device for multiplexing motor driving energy includes a power distribution unit 1, a gating unit 2, a main control unit 3 and a network switching unit 4, wherein the power distribution unit 1 realizes secondary power supply of each functional unit in the motor gating device, the gating unit 2 realizes gating control of multiple sets of driving motors, the main control unit 3 realizes real-time control of the motor gating device, and the network switching unit 4 realizes network communication with a motor driving system health network center and a control network center.
The power distribution unit 1 comprises an AC-DC power supply module and two paths of power supply input modules, each path of power supply input module comprises an air switch and an alternating current filter which are sequentially connected in series, the alternating current filter of each path of power supply input module is connected with the AC-DC power supply module, the air switch of one path of power supply input module is connected with one path of power supply input interface, the power supply input interface of the path is connected with a power supply center of a motor driving system, the air switch of the other path of power supply input module is connected with the other path of power supply input interface, the power supply input interface of the path is connected with an emergency power supply system, and 220V alternating current input from the outside is filtered and then converted into 24V direct current through the AC/DC power supply module; meanwhile, three output interfaces of the AC-DC power supply module are respectively connected with three power supply output interfaces, and the three power supply output interfaces are respectively sent to a gating unit 2, a main control unit 3 and a network switching unit 4 in the motor gating device.
The gating unit 2 comprises an IO light receiving plate, an IO light emitting plate and a circuit bottom plate, wherein the IO light emitting plate converts IO electrical signals from the circuit bottom plate into IO optical signals and sends the IO optical signals, the IO light receiving plate converts externally input IO optical signals into IO electrical signals and sends the IO electrical signals to the circuit bottom plate, and the circuit bottom plate is communicated with the main control unit 3 through an IO interface; the first power supply output interface of the power distribution unit is connected with the power supply input interface of the circuit bottom plate, the communication output interface of the IO light emission plate is respectively connected with the communication input interfaces of the external motor drive controller and the m driving motors, the communication output interfaces of the external motor drive controller and the m driving motors are connected with the communication input interface of the IO light receiving plate, and m is an integer larger than or equal to 1.
The main control unit 3 includes a main control board, the main control board is configured as a combination of a general type ARM (e.g., STM32F030K6) and FPGA (e.g., EP3C10E144C7N) chip, communication with the network switching unit 4 and the gating unit 2 is realized, the second power supply output interface of the power distribution unit is connected with the power supply input interface of the main control board, and the circuit board is in bidirectional communication with the main control board.
The network switching unit 4 comprises a control network switch and a health network switch, and realizes the Ethernet communication between the motor gating device and the motor driving system control network center and the motor driving system health network center; the third power supply output interface of the power distribution unit is respectively connected with the power supply input interfaces of the control network switch and the healthy network switch, the control network switch and the healthy network switch are in two-way communication with the main control board, the control network switch is in two-way communication with the external motor drive system control network center, and the healthy network switch is in two-way communication with the external motor drive system healthy network center.
The invention relates to a motor gating device working method for multiplexing motor driving energy, which comprises the steps of controlling the on and off of a strong current loop between the motor driving energy and m sets of driving motors in real time according to an m-bit gating control instruction, and carrying out real-time communication with the gated driving motors, wherein the m-bit gating control instruction is represented by m-bit binary numbers X (1), X (2), … and X (m), X (i) is 1 and represents that the ith set of driving motors are gated, X (i) is 0 and represents that the ith set of driving motors are not gated, and i is an integer between 1 and m. The working method of the motor gating device for multiplexing the motor driving energy comprises the following steps:
at the initial moment, all the m-bit gating control commands X (1), X (2), … and X (m) are 0, namely all the driving motors are in a non-gated state at the initial moment;
at the working moment, only 1 bit of the m-bit gating control instructions X (1), X (2), … and X (m) is 1, and the rest is 0, namely only one set of driving motors is gated at the working moment, so that the driving energy of the motors is ensured to supply power to one set of driving motors;
at the working moment, the working process of the motor gating device is as follows:
s01, the motor drive control network center sends the m-bit gating control instruction to the main control board in the main control unit 3 through the control network switch;
s02, after receiving and analyzing the m-bit gating control instruction, the main control board in the main control unit 3 sends the m-bit gating control instruction to the circuit bottom board of the gating unit 2, and the circuit bottom board sends the m-bit gating control instruction to the IO light emitting board and the IO light receiving board;
s03, the IO light receiving board in the gating unit 2 receives a driving motor control instruction from the motor driving controller and sends the driving motor control instruction to the IO light emitting board through the circuit bottom board;
s04, the IO light emitting board in the gating unit 2 gates the driving motor control instruction according to the m-bit gating control instruction, and sends the gated driving motor control instruction to m sets of driving motors;
s05, the IO light receiving board in the gating unit 2 receives control information from m sets of driving motors and sends the control information of the m sets of driving motors to the main control board in the main control unit 3 through the bottom board, and the IO light receiving board carries out gating processing on the control information of the m sets of driving motors and then sends the control information to the IO light emitting board through the circuit bottom board;
s06, the IO light emitting board in the gating unit 2 sends the driving motor control information after gating processing to the driving motor controller;
and S07, the main control board in the main control unit 3 sends the control information of the m sets of driving motors to the motor driving system health network center through the health network switch.
Under the continuous working condition, the time-sharing switching power supply of the m sets of driving motors by the motor driving energy source is realized by modifying the m-bit gating control instructions X (1), X (2), …, X (m).
The motor driving energy of a single set or a small number of sets is used for switching and supplying power to a plurality of sets of driving motors in a time-sharing manner, so that the utilization rate of the motor driving energy can be greatly improved, and the volume and weight of the whole set of motor driving device are reduced.
Those not described in detail in this specification are within the skill of the art. It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (5)
1. A motor gating device for multiplexing motor drive energy sources is characterized in that: the system comprises a power distribution unit, a gating unit, a main control unit and a network switching unit, wherein the power distribution unit supplies power to the gating unit, the main control unit and the network switching unit respectively;
controlling the on and off of a strong current loop between a motor driving energy source and m sets of driving motors in real time according to an m-bit gating control instruction, and carrying out real-time communication with the gated driving motors, wherein the m-bit gating control instruction is represented by m-bit binary numbers X (1), X (2), … and X (m), X (i) is 1 and represents that the i-th set of driving motors are gated, X (i) is 0 and represents that the i-th set of driving motors are not gated, i is an integer between 1 and m, and m is an integer larger than or equal to 1;
the working method of the motor gating device comprises the following specific steps:
at the initial moment, all the m-bit gating control commands X (1), X (2), … and X (m) are 0, namely all the driving motors are in a non-gated state at the initial moment;
at the working moment, only 1 bit of the m-bit gating control instructions X (1), X (2), … and X (m) is 1, and the rest is 0, namely only one set of driving motors is gated at the working moment, so that the driving energy of the motors is ensured to supply power to one set of driving motors;
at the working moment, the working process of the motor gating device is as follows:
s01, the control network center of the motor driving system sends the m-bit gating control instruction to the main control board in the main control unit through the control network switch;
s02, after receiving and analyzing the m-bit gating control instruction, the main control board in the main control unit sends the m-bit gating control instruction to the circuit bottom board of the gating unit, and the circuit bottom board sends the m-bit gating control instruction to the IO light emitting board and the IO light receiving board;
s03, the IO light receiving board in the gating unit receives a driving motor control instruction from the motor driving controller and sends the driving motor control instruction to the IO light emitting board through the circuit bottom board;
s04, the IO light emitting board in the gating unit gates the driving motor control instruction according to the m-bit gating control instruction, and sends the gated driving motor control instruction to the m sets of driving motors;
s05, the IO light receiving board in the gating unit receives control information from m sets of driving motors and sends the control information of the m sets of driving motors to the main control board in the main control unit 3 through the bottom board, and the IO light receiving board carries out gating processing on the control information of the m sets of driving motors and then sends the control information to the IO light emitting board through the circuit bottom board;
s06, the IO light emitting board in the gating unit sends the drive motor control information after gating processing to the motor drive controller;
and S07, the main control board in the main control unit sends the control information of the m sets of driving motors to the motor driving system health network center through the health network switch.
2. The motor gating apparatus for multiplexing of motor-driven energy according to claim 1, wherein: the power distribution unit comprises an AC-DC power supply module and two paths of power supply input modules, each path of power supply input module comprises an air switch and an alternating current filter which are sequentially connected in series, the alternating current filter of each path of power supply input module is connected with the AC-DC power supply module, the air switch of one path of power supply input module is connected with one path of power supply input interface, and the air switch of the other path of power supply input module is connected with the other path of power supply input interface; meanwhile, three output interfaces of the AC-DC power supply module are respectively connected with three power supply output interfaces, and the three power supply output interfaces are respectively connected with the gating unit, the main control unit and the network switching unit.
3. The motor gating apparatus for multiplexing of motor-driven energy according to claim 1, wherein: the gating unit comprises an IO light receiving plate, an IO light emitting plate and a circuit bottom plate, the IO light emitting plate converts IO electrical signals from the circuit bottom plate into IO optical signals and sends the IO optical signals, the IO light receiving plate converts externally input IO optical signals into IO electrical signals and sends the IO electrical signals to the circuit bottom plate, and the circuit bottom plate is communicated with the main control unit through an IO interface; the communication output interface of the IO light emission plate is respectively connected with the communication input interfaces of the external motor drive controller and the m driving motors, the communication output interfaces of the external motor drive controller and the m driving motors are respectively connected with the communication input interface of the IO light receiving plate, and m is an integer larger than or equal to 1.
4. The motor gating apparatus for multiplexing of motor-driven energy according to claim 3, wherein: the main control unit comprises a main control board, and the circuit bottom board is in two-way communication with the main control board.
5. The motor gating apparatus for multiplexing of motor-driven energy according to claim 4, wherein: the network switching unit comprises a control network switch and a health network switch, the control network switch and the health network switch are in two-way communication with the main control board, the control network switch is in two-way communication with an external motor driving system control network center, and the health network switch is in two-way communication with the external motor driving system health network center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010496444.4A CN111817610B (en) | 2020-06-03 | 2020-06-03 | Motor gating device for multiplexing motor driving energy and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010496444.4A CN111817610B (en) | 2020-06-03 | 2020-06-03 | Motor gating device for multiplexing motor driving energy and working method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111817610A CN111817610A (en) | 2020-10-23 |
| CN111817610B true CN111817610B (en) | 2021-11-02 |
Family
ID=72847968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010496444.4A Active CN111817610B (en) | 2020-06-03 | 2020-06-03 | Motor gating device for multiplexing motor driving energy and working method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111817610B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3842736A (en) * | 1973-03-05 | 1974-10-22 | Ibm | Print hammer registration control |
| EP0641538A1 (en) * | 1993-08-12 | 1995-03-08 | Gerhard Kurz | Vacuum cleaner power control device |
| CN200947551Y (en) * | 2006-08-23 | 2007-09-12 | 中国人民解放军总装备部汽车试验场 | Vehicle-mounted power management system |
| CN101339427A (en) * | 2008-08-13 | 2009-01-07 | 北京航空航天大学 | Multiple DC motor shape adjusting control unit for multi-point mould shape adjustment |
| CN202042929U (en) * | 2011-05-27 | 2011-11-16 | 山东鲁能智能技术有限公司 | Electric automobile charging pile with wireless monitoring terminal |
| JP2011259535A (en) * | 2010-06-07 | 2011-12-22 | Yaskawa Electric Corp | Motor control system |
| CN202696612U (en) * | 2012-06-07 | 2013-01-23 | 武汉电信器件有限公司 | 40 G CFP (computer form printer) optical module using integrated photoelectric detector |
| CN103365228A (en) * | 2013-07-05 | 2013-10-23 | 华南理工大学 | Time-sharing control system with motion controller |
| CN105041782A (en) * | 2015-06-25 | 2015-11-11 | 西安交通大学 | Numerical variable pump based on multichannel solenoid directional valve binary system flow regulation and control |
| CN204992772U (en) * | 2015-11-02 | 2016-01-20 | 李成 | Timesharing power supply system based on remote supply mode |
| CN106301091A (en) * | 2016-09-28 | 2017-01-04 | 阳光电源股份有限公司 | A kind of panel tracking system and motor method of supplying power to thereof and tracing control box |
| CN207753611U (en) * | 2017-12-27 | 2018-08-21 | 武汉中电通信有限责任公司 | A kind of vehicle-mounted comprehensive power |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5555267A (en) * | 1993-07-30 | 1996-09-10 | Burke, Jr.; George E. | Feedforward control system, method and control module |
| US8059005B2 (en) * | 2004-09-10 | 2011-11-15 | Cooper Technologies Company | Circuit protector monitoring assembly kit and method |
| US9201418B1 (en) * | 2014-05-12 | 2015-12-01 | Innoserv Fa Inc. | Servo motor drive |
| US9991778B2 (en) * | 2016-02-29 | 2018-06-05 | The Boeing Company | Balancing current within a modular converter system |
| CN107508486A (en) * | 2016-06-13 | 2017-12-22 | 中兴通讯股份有限公司 | A kind of electric machine controller, electric machine control system and electric automobile |
-
2020
- 2020-06-03 CN CN202010496444.4A patent/CN111817610B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3842736A (en) * | 1973-03-05 | 1974-10-22 | Ibm | Print hammer registration control |
| EP0641538A1 (en) * | 1993-08-12 | 1995-03-08 | Gerhard Kurz | Vacuum cleaner power control device |
| CN200947551Y (en) * | 2006-08-23 | 2007-09-12 | 中国人民解放军总装备部汽车试验场 | Vehicle-mounted power management system |
| CN101339427A (en) * | 2008-08-13 | 2009-01-07 | 北京航空航天大学 | Multiple DC motor shape adjusting control unit for multi-point mould shape adjustment |
| JP2011259535A (en) * | 2010-06-07 | 2011-12-22 | Yaskawa Electric Corp | Motor control system |
| CN202042929U (en) * | 2011-05-27 | 2011-11-16 | 山东鲁能智能技术有限公司 | Electric automobile charging pile with wireless monitoring terminal |
| CN202696612U (en) * | 2012-06-07 | 2013-01-23 | 武汉电信器件有限公司 | 40 G CFP (computer form printer) optical module using integrated photoelectric detector |
| CN103365228A (en) * | 2013-07-05 | 2013-10-23 | 华南理工大学 | Time-sharing control system with motion controller |
| CN105041782A (en) * | 2015-06-25 | 2015-11-11 | 西安交通大学 | Numerical variable pump based on multichannel solenoid directional valve binary system flow regulation and control |
| CN204992772U (en) * | 2015-11-02 | 2016-01-20 | 李成 | Timesharing power supply system based on remote supply mode |
| CN106301091A (en) * | 2016-09-28 | 2017-01-04 | 阳光电源股份有限公司 | A kind of panel tracking system and motor method of supplying power to thereof and tracing control box |
| CN207753611U (en) * | 2017-12-27 | 2018-08-21 | 武汉中电通信有限责任公司 | A kind of vehicle-mounted comprehensive power |
Non-Patent Citations (3)
| Title |
|---|
| Using one FPGA to control two high-switching-frequency PMSM drive systems through a novel time-division multiplexing method;Fanning Jin等;《2018 IEEE Applied Power Electronics Conference and Exposition (APEC)》;20180419;第998-1002页 * |
| 分时供电全桥Buck型双输入直流变换器;李钊钦等;《电子技术应用》;20200430;第46卷(第4期);第93-98页 * |
| 分段供电开关的状态监测系统设计;胡练武;《舰船电子工程》;20101031;第30卷(第10期);第120-123页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111817610A (en) | 2020-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102891501B (en) | Distributed control system of high-power current transformer | |
| CN111682803B (en) | Multi-path direct current motor control system of flexible mechanical arm | |
| CN111817610B (en) | Motor gating device for multiplexing motor driving energy and working method | |
| CN101527462B (en) | Digital control device of converter | |
| CN206544182U (en) | A kind of robot control system | |
| CN107040125B (en) | A kind of switch power supply system and its current control method | |
| CN101408589A (en) | Electric automobile motor test integrated power supply platform and control method thereof | |
| CN103163854A (en) | Intelligent building modularization installation | |
| CN106411150B (en) | The cascade multilevel converter and control method of bi-motor asynchronous operation can be driven | |
| CN107171535A (en) | A kind of distributed director | |
| CN110943652A (en) | Multi-motor cluster system drive control device, method and system | |
| CN110401379B (en) | Step-changing control system and step-changing control method for magnetic suspension traffic | |
| CN106170168A (en) | A kind of light of stage scene effect intelligence control system | |
| CN206422791U (en) | A kind of pattern fast switch over type network switch | |
| CN203166830U (en) | High-electrical efficiency energy-saving control device of high-voltage motor | |
| CN202818211U (en) | Eight-axis synchronous stepping motor based control system | |
| CN214474556U (en) | Switch remote control system | |
| CN210416244U (en) | Three-in-one electric vehicle controller | |
| CN103631177A (en) | Direct-current power supply asynchronous parallel digital control system and control method thereof | |
| CN204079134U (en) | Elevator energy-saving type controls and drives integral control system | |
| CN206023628U (en) | A kind of DC electric machine drive apparatus of modular extendable formula | |
| CN218549749U (en) | Wide voltage range input integrated multi-shaft servo driving system | |
| CN104803241A (en) | Novel elevator control system | |
| CN113328637B (en) | Distributed large-current power supply system based on group cooperative control of industrial Internet | |
| CN108750838A (en) | A kind of elevator control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |