Sunwin Aerospace Power System Testing Solution

An Integrated Hardware & Software Automated Test System for Aerospace Power Performance and Reliability

1. Why Aerospace Power Systems Need Professional Testing

An aerospace power system generates, stores, converts, regulates and distributes electrical energy, and is typically divided into primary power and secondary power. Secondary power converts primary power into another form or specification to meet the requirements of different onboard electrical equipment. As an essential support system, the aerospace power system provides safe and reliable energy for every subsystem of aircraft and spacecraft, and its development level plays a decisive role in improving aircraft performance and extending service life.

From 28Vdc, 270Vdc to 400Hz AC supplies, power quality directly affects the safe operation of onboard equipment. International aerospace power quality standards such as MIL-STD-704 and RTCA DO-160 impose strict requirements on voltage, frequency and transient characteristics. Therefore, comprehensive testing and evaluation of the power system under defined operating conditions is of great significance.

2. From Standalone Testing to an Automated Test System

Traditional standalone testing requires repeated operations during transitions between operating conditions. Such transitions are difficult to simulate and test, and are often the weak links where system faults occur. Aerospace power supply testing demands a more efficient and reliable approach.

That is why Sunwin delivers an integrated hardware and software power automatic test system (ATS), replacing labor-intensive manual operations with automated test flows to achieve comprehensive, precise and efficient testing of aerospace power system performance, helping customers improve test efficiency and quality.

3. Core Advantages

3.1 Hardware Flexibility

The hardware configuration of the Sunwin aerospace power testing system can be freely matched to test requirements, allowing users to build a test system with the equipment that best fits their needs. Based on a flexible hardware framework, the system enables users to control investment costs while significantly improving test efficiency, supporting pay-as-you-need investment and flexible expansion.

3.2 Software Flexibility

Sunwin test software adapts to power subsystem modules of different specifications, freely adding and combining test items for testing. The system provides more than 40 test items. With automatic test software, users can select test items according to the characteristics of the DUT (device under test), enabling one system to serve multiple test objects.

3.3 High Precision

As a vital part of the aerospace industry, the performance and reliability of power systems directly affect aircraft performance and service life, so high precision is a must for power testing systems. The hardware devices of the Sunwin power automatic test system achieve a resolution of up to 0.01mV/0.01mA, fully meeting aerospace testing needs for high-precision power modules and for detecting subtle changes in module voltage and current

3.4 Comprehensive Test Functions

The Sunwin aerospace power testing system performs comprehensive and systematic testing of aerospace power system performance parameters. With complete and outstanding test and measurement capability, it provides full testing coverage for power modules, secondary power and onboard electrical equipment.

4. Typical Applications

For onboard power module and secondary power testing, the system supports R&D verification and performance evaluation of aerospace power modules, DC-DC converters and secondary power, covering key parameters such as voltage, current, power, ripple and transient characteristics. For power quality compliance testing, it addresses the test requirements of aerospace power quality standards such as MIL-STD-704 and DO-160, verifying supply quality under various operating conditions.

For aerospace production and maintenance testing, the system supports production testing and acceptance testing of aerospace power products to ensure factory quality. For ground support, it verifies the load capacity of ground power equipment, test benches and maintenance support equipment, supporting power reliability across the full lifecycle of aircraft.