Comprehensive Low-Speed High-Torque Power Dynamometer Loading Test
Distinguished Features of the Low-Speed, High-Torque Electric Dynamometer:
In constant speed mode, the electric dynamometer excels with both driving and reversing functionalities.
It is equipped for dynamometer loading in constant torque mode, enhancing its testing versatility.
During dynamometer loading, the energy generated can either be efficiently fed back into the grid or dissipated using a chopper brake resistor.
Low-Speed, High-Torque Electric Dynamometers: No Cooling Water System Required
Configuration: Motor under test ----------- Torque Transducer -------- Electric Dynamometer
Configuration: Engine -------------- Torque Sensor -------- Electric Dynamometer
Configuration: Drive Motors ----------- Reducers --------- Torque Sensors ---------- Electric Dynamometers
Configuration: Drive Motor ----------- Reducer -------- Accompany Test Reducer ---------- Torque Sensor ---------- Low-Speed High-Torque Electric Dynamometer
Technical Characteristics of Low-Speed, High-Torque Electric Dynamometer:
1. Capable of four-quadrant operation, delivering both driving torque (electric operation) and resistance torque (power generation operation). Outstanding loading performance is assured from zero speed to rated speed with constant torque, and beyond rated speed with constant power.
2. System Loading/Driving Modes: The system supports constant torque loading/driving, constant speed loading/driving, zero speed loading/driving, fixed parameter loading/driving, and computer-controlled loading/driving. Dynamic testing capabilities include cyclic reciprocating loading (sine wave or square wave) and the ability to simulate various conditions like uphill/downhill, start/brake, and acceleration/deceleration.
3. Speed Regulation: Bidirectional, frequency conversion speed regulation with dynamic response under 8ms (dependent on the test piece's inertia).
4. Torque Control Mode: Employs torque vector frequency conversion control with a dynamic response time of under 5ms.
5. Operation Modes: Offers manual control and automatic program control, with seamless switching between multiple control modes.
6. Digital Test Bench Operation Modes:
a. Automatic Speed Control
b. Automatic Torque Control
c. Program-Controlled Road Resistance Simulation: Includes road condition simulation, speed control, slope control, and torque control modes.
d. The test device allows smooth switching between speed control and torque control modes during dynamic operations, with a switching time of less than 1 second.
7. Overload Capacity: Supports 150% over-torque for at least 10 minutes and 200% over-torque for at least 1 minute. At zero speed (0Hz), it can achieve 200% of the rated torque, with no torque attenuation even as speed approaches zero.
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