* Steps and how to do the job :
1. EQUIPMENT, TOOLS, MATERIALS:
(Calculated for a practice session of 20 students)
TT
Equipment Type | Quantity | |
1 | Micrimaster 420/4440 single phase/three phase inverter | 04 pieces |
2 | BOP Block | 04 pcs |
3 | Computer and DriverMonitor software | 01 set |
4 | Inverter – computer connection wire | 04 sets |
5 | 3 phase AC motor | 04 pcs |
6 | Encorder | 04 sets |
7 | Connecting wire | 04 sets |
8 | Power block | 04 sets |
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2. IMPLEMENTATION PROCESS:
2.1. General process:
STT
Name of work steps | Equipment, tools, materials | Performance standards job | Common errors, how to fix | |
1 | Step 1: Check the device. | Inverter, motor motor, speed display, encorder… | Technical specifications included | |
2 | Step 2: Connect the inverter system – engine - encoder | Inverter, motor, speed display, encoder | According to the connection diagram. | Communication cable connection error between computer and transmission port |
3 | Step 3: Check | Inverter, motor | According to the diagram |
check and power. | motor, speed display, encoder | connect | BOP information. Check connection port, check the installation mode according to the instruction document guide. | |
4 | Step 4: Set default parameters. + Software installation DriverMonitor control. + Push button setup | Computer, inverter, motor, speed display, encoder | Instruction manual included | Error: Unable to set working mode. Solution: Read the manual carefully and set the parameters as directed. guide. |
5 | Step 5: Control the operating modes of the inverter: PID closed-loop control, tracking control mode, V/f control mode... + Control via DriverMonitor software. + Control by key | Inverter, motor, speed display, encoder | Instruction manual included | Inverter working in wrong setting mode. Check the errors displayed on the AOP block and look up the documentation instructions for finding errors. |
4
Step 6: Record the results of the practice report | Inverter, motor, speed display, encoder | As required by instructor. |
2.2. Specific process:
2.2.1. Operation and testing of the model
2.2.2. Identify devices
2.2.3. Comparison
2.2.4. Submit collected documents and notes to the instructor.
2.2.5. Shut down the machine and perform industrial cleaning.
* Practice exercises for students:
1. Prepare equipment, tools and materials.
2. Grouping:
Divide into groups of 6 students/set of practice equipment
3. Perform general and specific procedures.
Requires factory default settings by computer and by key press
Working mode setting: PID control, tracking control, V/f control
* Requirements for assessment of learning outcomes:
TT
Job Description | Score | Point Evaluate | Note | |
1 | Make a work plan | 0.5 | ||
2 | Recognize the symbols and actual shapes of each type of inverter: single-phase inverter, 3 phase | 1 | ||
3 | Analysis of the operating principle of the inverter | 1.5 | ||
4 | Installation and setting of working modes inverter on demand | 4 | ||
5 | Explain the operating modes of the inverter | 2 | ||
6 | Give practical application circuit | 1 | ||
Total score | 10 | |||
Classification | ||||
REFERENCES
Nguyen Van Nho,
Power Electronics 1 - Ho Chi Minh City National University Publishing House - 2002. | |
Nguyen Binh, | Power Electronics - Hanoi Science and Technology Publishing House - 2000. |
Tran Van Thinh | ELECTRONIC DESIGN CALCULATION CAPACITY – Education Publishing House – 2005 |
Do Xuan Tung, Truong Tri Ngo - | Power Electronics, Construction Publishing House, 1999 |
MH Rashid, | Power electronics - circuits, devices and applications. applications. Pearson Education Inc, Pearson Prentice Hall – 2004. |
Bimal K. Bose, | Prentice Hall PTR, Modern Power Electronics and AC Drives, Condra Chair of Excellence in Power Electronics The University of Tennessee, Knoxville – 2002. |
Cyril w.Lander | Power electronics and electric motor control – Science and Technology Publishing House, 1997 |
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