JC-MPT200 electromotor performance testsolution for commercial vehicle electric drive test system, to achieve a set of tools and to achieve a motor test.

The basic parameters of the motor and drive are as follows:
Rated voltage 50-750VDC
Peak torque 2500Nm
The controller and the motor peak power less than 200 kW
Rated speed 750rpm
Control strategy vector frequency conversion control
The maximum speed is less than or equal to 4000rpm
Cooling mode, water cooling
JC-MPT200 usage environment:
Temperature: -15 DEG C, ~40 DEG C
Condition Guarantee
1) compressed air 5~6bar, 1000 L/min
2) power supply 380V + 6%, three-phase five wire system, 50Hz, rated power 300 kW
3) ambient temperature is 25 + 5
4) cooling water 32 degrees C, 50 L/min, 2~3bar
JC-MPT200 design reference standard:
GB/T29307-2012 "reliability test method for drive motor system of electric vehicle"
Motor drive system _ first part - GB/T18488.1-2015 electric vehicle technical condition
Motor drive system _ second part GB/T18488.2-2015: Test methods - electric vehicles
Fault classification and judgement of drive motor system for QCT 893-2011 electric vehicle
QCT 896-2011 drive motor system interface for electric vehicles
Test methods for GB/T 22669 three-phase permanent magnet synchronous motors
Test methods for power performance of GB/T 18385 electric vehicles
JC-MPT200 motor test project:
Motor and motor controller external characteristic curve test
Motor and motor controller efficiency and system efficiency test
System temperature test
Maximum back EMF
No-load loss
Efficiency RPM torque MAP diagram
Drive motor system, efficient work area
Torque speed accuracy test
Motor and controller overload test
Max. speed
JC-MPT200 system architecture:
• load and tested motors as well as torque sensors, couplings, brackets, and shaft assembly are fixed to the cast iron base plate. Shanghai Jie Chen high-speed Bench Design and debugging experience.
According to the performance index of the tested motor, select the torque sensor with proper accuracy and allowance.
Refer to the measured motor performance and test requirements, select a suitable margin of the load motor and drive system.
The tested motor and driver are powered by a bidirectional DCDC battery simulator, the load driven motor is driven by a frequency converter, and a DC bus is connected between the input of the battery simulator and the converter. When the participants in the electric motor load, the electrical load in the power generation mode or on the contrary, circulating in the DC system, only a small amount of absorbed energy from the grid during the test (about the subjects of system power is about 35%). The system contains braking resistance, which is used to absorb excess energy during braking or stopping, and then convert it into heat energy consumption to protect the system.
• provide cooling system for controlled motors and drives (customers provide cold sources).
JC-MPT200 mechanical structure is mainly composed of:
The cast iron platform: on the basis of the actual test product demand, Chen Jie will design and customization of suitable size and height of the cast iron platform.
The fixture: according to customer demand for customized development, tooling and fixture design is convenient and reliable to consider Chen Jie
• automatic modules such as protection and automatic drainage can also be used as an option.
L drive: for the motor shaft and the coupling of the single transfer, and other required for the installation of rotating parts. Actual delivery will be provided by the manufacturers of dynamic balancing test report. (report issued by non party third inspection organization)
Calibration: provide torque adjustment tool and issue calibration report. (report issued by non party third inspection organization)
JC-MPT200 real time operating system:
A real-time operating system refers to the correctness of the results, not only depends on the logical results of the calculation, but also depends on the resulting time of the operating system. When used for control, many features of a common operating system (such as windows) result in no real-time control:
The high priority task can be a low priority task preemption;
The operation has a lot of unnecessary background tasks;
The disk access, antivirus program, screen protection, GUI and waste a lot of resources;
The external interrupt (such as mouse, keyboard) affect the real-time performance of the system;
The software is not controllable jitter Chen Jie test performance by using a real-time operating system and real-time program to complete data acquisition, test execution, dynamometer control, model simulation, alarm monitoring and other functions, can be time deterministic control and data acquisition (in a prescribed period of time, such as 1ms, and completes the task), avoid the introduction of delay real-time systems (Latency) and jitter (Jitter).
Computer：
HP high-end business machines, the specific configuration is as follows:
I7CPU
4G memory
1T hard disk
[23] monitor
UPS power:
The main function of the UPS power supply is to protect the computer system from the impact of the external grid surge and to protect important data from loss in the event of sudden power failure.
Ways: Online
Capacity: 2KVA
L standby time: 9.5 minutes /21 minutes (full / half)
Input voltage range: 118~300Vac
Output voltage range: 220V + 2%