| Quantity: | |
|---|---|
Aerospace starter & generator test benches test different aero-generators, include starters, generators, and starters & generators. According to the tested object, the test bench can be dynamometer directly connect to the tested object, or by the gearbox.
（1）Multi-mode Compatible Test Capability
The test bench supports testing of independent starters, independent generators and integrated starter-generator units. It adopts two connection schemes: direct dynamometer connection and gearbox transmission. Flexible configuration can adapt to various types of aerospace starter-generator products.
（2）Bidirectional Energy Flow Simulation
Realize accurate simulation of two working states: motor starting (electric drive) and generator power generation. It can complete dynamic switching test between starting and power generation modes, truly reproducing the full flight cycle operating characteristics of on-board starter-generators.
（3）High Precision & Synchronized Data Acquisition
High-response dynamometer matches high-speed signal acquisition module. Synchronously collect rotational speed, torque, voltage, current, winding temperature and vibration parameters. All test data is recorded completely and traceable, satisfying aviation standard certification requirements.
（4）Modular & Expandable Architecture
The whole platform adopts modular design. Users can expand environmental chambers, cooling medium simulation systems, high-altitude pressure simulation modules according to testing demands, realizing composite environmental + mechanical electrical joint test in later stage.
（5）Intelligent Automatic Test System
Support editing of custom flight cycle test profiles, automatic circulation test, remote monitoring, fault alarm and interlock protection. Reduce manual intervention, realize unattended long-term durability test and improve test repeatability.
（6）Energy-saving Energy Feedback Design
Adopt energy feedback power unit. The electric energy generated during generator testing can be recycled to the grid, greatly cutting operating power consumption compared with traditional resistance consumption loads.
（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）Torque control accuracy：±0.2% to ±0.5%FS
（6）Speed measurement accuracy：±1rpm
（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 temperature climate test
（10）User-defined cycle condition test
（11）Electrical inertia simulation test
（12）Controller calibration test
（13）Accelerated response test
（14）Torque response test
（15）Lock-rotor test
（16）Grid-connected switching test for power generation
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.
Climate Chamber: Provides a simulated operating environment with controllable high/low temperature and humidity for the test objects.
Automated Measurement & Control System: Conducts overall control and condition monitoring of the entire motor test bench.
700kW 30000rpm & 18000rpm Test bench for aero-generators
100kW 20000rpm Test bench for aero- starter & generator
16.5kW 65000rpm Test bench for aero-generators
The oil cooling system of the aero starter-generator test bench adopts high-temperature-resistant hydraulic components such as pumps and valves, and features temperature and pressure compensation. The system can typically operate under working conditions of 180℃ to 200℃, while achieving accurate pressure or flow control.
 The oil cooling system for aero-generators |  The air cooling system for aero-generators |
Q 1: What types of products and working conditions can the Aerospace Starter Generator Test Bench test?
A1: This test bench developed by Anhui Jingke Testing Technology is specially designed for aerospace electrical power equipment. It can complete full performance tests for aviation starters, aerospace generators, and integrated starter-generator (ISG) units. The system supports two core working modes: electric starting drive mode and power generation loading mode. It can simulate engine start process, variable speed operation, sudden load change, steady-state power generation, and long-duration durability tests, fully covering the actual flight working conditions of airborne starter generators.
Q 2:What are the core technical advantages compared with traditional ordinary test equipment?
A2: Different from traditional discrete test devices, this bench adopts an integrated bidirectional energy simulation architecture. It realizes seamless dynamic switching between starting motoring mode and generating mode. Equipped with high-precision dynamometer and synchronous multi-channel data acquisition system, it can capture speed, torque, voltage, current, temperature and power parameters in real time with high consistency. In addition, the energy feedback design greatly reduces test power consumption, solving the problems of low precision, poor synchronization and high energy consumption of traditional test systems.
Q 3: Does the test bench meet aerospace industry certification standards and support customized test procedures?
A3: Yes. The test system fully complies with aviation and military standard test requirements including relevant GJB and aviation industry specifications. It supports user-defined editable test sequences, automatic cycle testing, flight condition simulation and unattended long-term durability tests. All test data is fully recorded, traceable and exportable, which can be directly used for product R&D verification, type test and industry certification. Meanwhile, the modular structure reserves expansion interfaces for high-altitude simulation, environmental temperature and humidity test systems.
