12-phase motor testing system
The module is a flexible, modular power quality product designed for harmonic suppression, power factor correction, and three-phase balance.
Rated capacity: 30A/50A/75A/100A/150A/200A
Rated input: 200/400/480/690/800V AC
Grid frequency: 50/60 Hz ± 10%
Filter range: 2 to 50 orders
Installation types: wall-mounted, rack-mounted, upright
Power grid configuration: 3P3W, 3P4W
Service Hotline: +86-10-81799630
Email: Liry_chinnovo@126.com
Category:
Special frequency converter
Keywords:
Product Description
System Overview
The system consists of an 800-kW PCS power supply, a 710-kW three-phase motor controller, and an 800-kW twelve-phase motor controller. The main circuit of the motor test platform is powered by a three-phase 380-V supply. The rectifier module in the PCS power supply converts the AC voltage into a continuously adjustable intermediate DC voltage ranging from 500 to 700 V DC. This intermediate DC voltage is then distributed via a common DC bus to both the twelve-phase programmable frequency converter and the three-phase frequency converter, providing them with the necessary operating power. During the permanent-magnet motor load testing, the twelve-phase permanent-magnet motor is driven by the twelve-phase frequency converter and operated in speed-control mode, while the accompanying three-phase induction motor is driven by the three-phase frequency converter and operated in torque-control mode. The electrical energy generated by the accompanying motor is fed back to the DC bus through the three-phase frequency converter and then output again via the twelve-phase frequency converter to circulate and be reused by the tested permanent-magnet motor. The grid compensation system assists in offsetting the losses incurred by the operating equipment.
Principle Topology
12 Topology for On-site Application of the Stepper Motor Testing System
PCS Principle Topology 
Main Circuit Topology Diagram of the Twelve-Phase Motor Controller
Electrical Topology Diagram of the Inverter Unit’s Main Circuit
Technical Specifications
12-phase inverter
| Project |
Specification Parameters |
|
| 1 |
Input Voltage |
DC 510 V~ 700V |
| 2 |
Output Voltage |
3 AC ， 0～ 380V |
| 3 |
Output power supply |
12-phase |
| 4 |
Rated output current |
360A × 4 |
| 5 |
Rated output Power |
200kW ×4 |
| 6 |
Overload capacity |
125%, up to 1 minute; 150%—immediate protection |
| 7 |
Output Frequency Scope |
0 ~ 300Hz |
| 8 |
Frequency Resolution |
0.01Hz |
| 9 |
Frequency Set signal |
Panel , Simulation quantity 4 ~ 20mA, Modbus TCP/IP communication, CAN Communication |
| 10 |
Torque Set signal |
Panel , Simulation quantity 4 ~ 20mA, Modbus TCP/IP communication, CAN Communication |
| 11 |
Control Method |
There is PG speed Control ( VC ) , none PG Speed control ( SVC ) 、 VF control |
| 12 |
Adaptation Motor Type |
Permanent Magnet Synchronous Motor |
| 13 |
Speed Control accuracy |
±0.5% ( SVC ), ±0 .2 %(VC) |
| 14 |
Torque control accuracy |
±3% of rated torque |
| 15 |
Acceleration and deceleration Time |
1.0 0～ 600.00s Adjustable |
| 16 |
Control Function |
Speed Control, torque control, static detection, Second- or third-tier Make Control , many Paragraph Quick setting, frequency source switching, command source switching, S Curved acceleration and deceleration, Rotational speed Online clipping, online torque limiting 、 Modbus communication Control |
| 17 |
Protection Function |
Undervoltage Overvoltage, Controller Overtemperature 、 Motor overtemperature, Output Overcurrent, drive protection, overload, Short-circuit and other protection functions |
| 18 |
Protection Level |
IP30 |
| 19 |
Rotational speed sensor |
Configuration PG interface card, supporting incremental encoders or rotary transformers. |
| 20 |
Communication interface |
Modbus TCP |
| 21 |
Run Temperature |
-10℃～ 40 °C, No capacity reduction ，>40 ℃, reduced capacity Use |
| 22 |
Install Venue |
Indoor, No dust, corrosive gases, or flammable gases. Salt spray Wait |
| 23 |
Storage Temperature |
- 20～ +65 Celsius |
| 24 |
Relatively Humidity |
< 95% RH ( No Condensation ) |
| 25 |
Cooling |
Water-cooled, water inlet Temperature ≤ 30 Celsius , water flow rate ≥ 140L/min |
| 26 |
Product dimensions (mm) |
|
| 27 |
Product weight (kg) |
|
800kW PCS power supply
| Project |
Specification Parameters |
Note |
| AC-side parameters |
||
| Interconnection access method |
Three-phase three-wire |
|
| Rated power |
400kW |
|
| Overload capacity |
110% , continuous operation 120%， ≤ 10min |
|
| Enter the rated voltage. |
380Vac |
Supports grid voltage fluctuations. ± 10% |
| Enter the rated current. |
650A |
|
| Rated grid frequency |
50Hz |
|
| Power grid frequency range |
50Hz ± 5% |
|
| Voltage Waveform distortion rate |
≤ 2% (Rated power) |
|
| Grid-connected power factor |
-1 ~ 1 Adjustable |
|
| Power response time |
≤ 20ms |
|
| DC-side parameters |
||
| DC voltage range |
540V ~ 700Vdc |
|
| Maximum DC current |
650A |
|
| Voltage regulation accuracy |
≤± 2% |
|
| Steady-flow accuracy |
≤± 2% |
|
| Voltage ripple |
≤ 2% |
|
| Current ripple |
≤ 5% |
|
| System parameters |
||
| System Efficiency (%) |
≥ 97% (Rated power) |
|
| External dimensions (mm) ( L *W*H ) |
|
|
| Weight (kg) |
500 |
|
| Cooling method |
Forced air cooling |
|
| Protection level |
IP20 |
|
| DC wiring Terminal |
+、- |
|
| Communication wiring Terminal |
A 、 B 、 C 、 |
|
| Wiring method |
Inlet and outlet at the bottom |
|
| Human-machine interface |
Smart LCD Touch screen |
|
| Communication Interface |
RS 485/CAN/ Ethernet Optional |
|
| Protection function |
Protection against overtemperature, overcurrent, overvoltage, undervoltage, drive failure, phase loss, and communication errors. |
|
| Parallel operation function |
Support PCS Parallel operation, dual-unit parallel operation 800kW |
|
| Work Status Monitoring |
Standby, Running, Protection |
|
710kW Three-Phase Inverter
| Project |
Specification Parameters |
|
|
base This Special Sex |
Input voltage |
DC510V ~ 700V |
|
|
Output voltage |
3AC，0 ~ 380V |
|
|
Rated output current |
1200A |
|
|
Rated output power |
710kW |
|
|
Overload capacity |
110% (Allow one minute every five minutes), 150% Protect now |
|
|
Output frequency range |
0 ~ 500Hz |
|
|
Frequency resolution |
0.01Hz |
|
|
Frequency setting signal |
Panel , Analog quantity 4 ~ 20mA， Modbus Communication, CAN Communication |
|
|
Torque setpoint signal |
Panel , Analog quantity 4 ~ 20mA， Modbus Communication, CAN Communication |
|
control Make Special Sex |
Control method |
There is PG Speed control ( VC )、None PG Speed control ( SVC ), VF Control |
|
|
Compatible Motor Types |
Three-phase variable-frequency induction motor |
|
|
Speed control accuracy |
± 0.5% (SVC) , ± 0.2% (VC) |
|
|
Torque control accuracy |
± 3% Rated torque |
|
|
Acceleration and Deceleration Time |
1.00 ~ 600.00s Adjustable |
|
|
Control function |
Speed control, torque control, standstill detection, two- or three-wire control, multi-speed setting, frequency source switching, command source switching, S Curve-based acceleration and deceleration, online speed limiting, online torque limiting, Modbus Communication Control |
| Guarantee Protect Merit Can |
Protection function |
Protection functions including undervoltage, overvoltage, controller overheating, motor overheating, output overcurrent, drive protection, overload, and short circuit. |
|
Other
|
Protection level |
IP30 |
|
|
Rotational speed sensor |
Configuration PG Interface card supporting incremental encoders or rotary transformers. |
|
|
Communication interface |
Modbus TCP |
|
|
Operating temperature |
-10 °C～ 40 ℃, no derating, >40 ℃, derate for use |
|
|
Installation location |
Indoors, free of dust, corrosive gases, flammable gases, salt spray, and the like. |
|
|
Storage temperature |
-20 ~ +65 Celsius |
|
|
Relative humidity |
<95% RH( Non-condensing ) |
|
|
Cooling |
Water cooling, inlet water temperature ≤ 30 ℃, water flow rate ≥ 120L/min |
External dimensions (optional)
Product Features
- Twelve-phase control by The system consists of four inverter modules connected in parallel. Synchronization signals are transmitted between the modules via optical fibers, ensuring high reliability.
- The control system consists of Composed of an ARM + DSP + FPGA triple-core architecture, featuring dual closed-loop control, high speed and precision in rotational speed or torque control, and rapid response.
- The motor controller is matched with an incremental speed encoder, and fiber-optic transmission is used for speed and position signals, ensuring high reliability.
- Equipped with an LCD screen that displays the operating status, fault warnings, and fault location in real time.
- Supports multiple communication protocols ( CAN, RS485, ModBus)
- Fast power response ( ≤20ms), accepted by grid dispatch
Application scenarios
Motor Testing Platform
Application site photos 
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Beijing Qian'an Electrical Technology Co., Ltd.
Service Hotline: +86-10-81799630
Email: Liry_chinnovo@126.com
Address: Room 906-907, Unit 3, Building 3, No. 42, North Seventh Road, Changping District, Beijing市
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