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（1）Rated power range: 1kW to 3MW
（2）Maximum speed range: 1000rpm to 100krpm
（3）Rated torque range: 1N.m to 10000N.m
（4）Torque measurement accuracy：0.05%FS
（5）0Torque control accuracy：±0.2~±0.5%FS
（6）Speed measurement accuracy：±1rpm
（7）Altitude range: sea level to 20,000m
（8）Temperature range: -55℃~200℃
（1）Efficiency MAP test
（2）External characteristic test
（3）Torque test
（4）Speed test
（5）Temperature rise test
（6）Over-load test
（7）Steady-state test
（8）Maximum speed test
（9）Durability with high altitude climate test
（10）User-defined cycle condition test
（11）Electrical inertia simulation test
Dynamometer & Mechanical System: A high-dynamic asynchronous or synchronous motor is selected as the dynamometer, equipped with a high-speed drive shaft system and precision, reliable mechanical components.
Frequency Converter: A four-quadrant frequency converter is adopted for dynamic or steady-state control of the dynamometer. It enables control of rotational speed, torque, allowing the dynamometer to operate in either motoring or generating mode.
DC/AC Power Supply: Supply power to the starter to simulate the start condition, generally, the current is large. According to the parameters of tested aerospace starter, the power parameters as follows:
Rated power range: 5kW to 2MW
Current range: 0 to ±2000A
DC voltage range: 12VDC to 1200VDC
AC voltage range:115VAC to 400VAC
Electric load: Absorbs the electrical energy from the generator and simulates the characteristics of the power-consuming equipment. JKT provides resistive load, inductive load, capacitive load, as well as regenerative electronic load.
Power Analyzer & Mobile Cart: A high-precision power analyzer is used to measure parameters such as current, voltage, efficiency and harmonics of the motor and controller. It can also receive torque and speed signals synchronously for calculating the motor’s mechanical efficiency.
MCU Power Supply: Provides an adjustable low-voltage power supply for the motor controller.
Test Object Cooling System: According to different tested objects, there are air-cooling system and hydraulic system. The air-cooling system provides adjustable flow rate air for the tested object. The hydraulic system provides the lubricating and cooling oil for the tested object.
Generally, the maximum temperature of the oil is very high, up to 200℃, the hydraulic system adopts high-temperature resistant hydraulic components such as pumps and valves, and is equipped with temperature and pressure compensation. It can generally operate at 180℃~200℃, while enabling precise pressure or flow control.
The air inlet and outlet of the air-cooling system are connected to the altitude chamber, forming an internal circulation system. The temperature of the cooling air can be adjusted by the temperature control system which installed after outlet of the circulating fan, which supplies cooling circulating air to the test piece under the same conditions as the simulated high-altitude environment, so as to test the thermal load state of the test piece.
Altitude Climate Chamber: Provides a simulated altitude environment for the test piece, allowing for the adjustment of temperature, air pressure, and humidity inside the chamber.
（1）Pressure range: atmospheric pressure 4.4 kPa, it can continuously work under 4.4 kPa
（2）Relative humidity range: 10...98 % RH @ 8...95 °C
（3）Temperature range: -70…+150 °C
（4）Stability at one point in time : ± 0,5°C
（5）Resolution for display: 0, 1°C
（6）Space homogeneity: ± 2°C
（7）Proper interfaces for connecting electrical lines, oil piping and ventilation air
Automated Measurement & Control System: Conducts overall control and condition monitoring of the entire motor test bench.
400kW 30000rpm Altitude Climate Simulation Test bench for aero-generators
200kW 20000rpm Altitude Climate Simulation Test bench for aero-generators
Q1: What test objects and industry applications does this Generator Altitude Climate Testbench support?
A1: Independently developed by Anhui Jingke Testing Technology Co., Ltd., this test bench is mainly used for performance and reliability verification of aviation generators, vehicle high-power generators and new energy power generation units. It can simulate composite high-altitude environments including low air pressure, low oxygen, extreme high and low temperature, and adjustable humidity. It is widely applicable in aerospace, new energy vehicles, military power supply, and generator R&D and certification fields. It replaces high-cost on-site plateau field tests and realizes full-condition bench verification of generator power attenuation, heat dissipation, insulation and start-up performance under high-altitude working conditions.
Q2: What core environmental simulation parameters can this Generator Altitude Climate Testbench achieve?
A2: The equipment adopts an integrated synchronous control system of air pressure, temperature and humidity. The altitude simulation range covers from sea level to 5500 meters with stable and adjustable pressure rise and fall speed. The temperature control range is -50℃ to +70℃, supporting linear temperature change programming. The humidity adjustment range is 5%~98%RH, which can realize stable humidity control under medium and low altitude low-pressure environments. Equipped with a multi-channel real-time electrical data acquisition module, it synchronously records generator output power, winding temperature, voltage, current and environmental parameters, realizing full-process traceability of test data.
Q3: What safety and intelligent control configurations are equipped on this test bench to guarantee long-term stable operation?
A3: The test bench is integrated with multiple interlock protection mechanisms, including over-temperature, over-pressure, under-pressure, over-current, electric leakage, phase loss and emergency stop protection. The intelligent control system supports programmable multi-step test profiles, Ethernet remote monitoring, automatic alarm recording and fault self-diagnosis. The inner chamber is made of anti-corrosion stainless steel and equipped with a pressure-resistant observation window. The matched energy feedback load system reduces test energy consumption by more than 60%, which can meet the requirements of long-term continuous aging and cyclic fatigue durability tests of generators under high-altitude extreme climates.
