Reverse serial connection control system and method for three direct-current motors
A DC motor, reverse series connection technology, applied in the direction of controlling multiple DC motors, excitation or armature current control, etc., can solve the problems of high cost, inability to convert energy, and high energy consumption, so as to reduce energy consumption. , the effect of fast dynamic response and strong anti-interference ability
Active Publication Date: 2018-11-23
徐州博柯斯健康科技有限公司
View PDF6 Cites 6 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At this time, in the existing control technology, if multiple motors are to be controlled, the single-quadrant operation can only work in the electric state, which consumes a large amount of energy, and cannot convert energy during the operation process. The circuit and control circuit will increase the cost, which is a problem that needs to be considered
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0053] see figure 1 , the present invention provides a three DC motor reverse series control system, the three DC motors are reversely connected in series, the voltages of the three DC motors are adjusted in a steady state, the voltage is synthesized in the reference voltage synthesizer, and the output The voltage waveform is adjusted by PWM pulse to obtain the PWM duty cycle, and the operating voltage of the DC motor is compared with the size of the DC power supply to realize the four-quadrant control of the three DC motors.
[0054] It includes 8 IGBT modules of the same type, DC power supply and three DC motors A, DC motor B, and DC motor C in reverse series. The 8 IGBT modules are connected in series in pairs to form four bridge arms connected in parallel on the DC power supply. At both ends, the three DC motors A, B, and C are connected to the reference voltage synthesizer through the two-stage PI controller respectively through the corresponding coupling inductance eleme...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a reverse serial connection control system and method for three direct-current motors. Eight IGBT modules of a four-phase inverter are connected in series two by two to form four bridge arms which are connected with the positive electrode and the negative electrode of a direct-current power supply in parallel; the three direct-current motors in reverse serial connection areconnected with the four bridge arms in series; the three direct-current motors pass through a speed sensor, a current sensor and a speed adjustment module in sequence and then are connected with a reference voltage synthesizer through a two-stage PI controller separately; the reference voltage synthesizer is connected with the four-phase inverter through a PWM pulse generation unit; the four-phase inverter is connected with the reference voltage synthesizer through a current adjusting module and a first-stage PI controller separately, and is connected to the PWM pulse generation unit throughthe reference voltage synthesizer; and pulse control signals generated by the PWM pulse generation unit are used for controlling on-off of the eight IGBT modules to drive the three current-current motors to run. By virtue of the reverse serial connection control system and method, four-quadrant operation of the three motors can be realized, the running direction and the operation speed of the motors can be changed, the energy of a motor feedback system can be sent back to the power grid, and the energy consumption is lowered.
Description
technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to a reverse series control system and method of three DC motors. Background technique [0002] Motor speed control technology is widely used in the field of automation control. With the acceleration of modernization, people's living standards are constantly improving, so that the demand and standards for automation are also constantly improving, which makes the application field of DC motor control further increase. For example, radar wireless, inertial navigation, satellite attitude, spacecraft photocell tracking to the sun in military and aerospace aspects; special processing equipment in industry, CNC machine tools, intelligent robots; various disk drives in computer peripherals and office equipment , control of various CD drives, plotters, scanners, copiers and other equipment. The development of motor control technology is due to the latest development achi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H02P5/68H02P7/29
CPCH02P5/68H02P7/29
Inventor 林海肖家博李刚李晓辉李杰朱旭董媛赵毅张懿璞王萍黄鹤于雅鑫周经美
Owner 徐州博柯斯健康科技有限公司