The Performance Revolutionizer for More-Electric Aircraft System Testing — IT-EC7800 High-Power AC Power Supply
The More Electric Aircraft (MEA) represents a systemic transformation in aviation power architecture. Its core concept is to increase the proportion of electrical power as the primary secondary energy source, gradually replacing traditional subsystems that rely on hydraulic, pneumatic, and mechanical power transmission. This design approach not only simplifies aircraft structure and reduces overall system weight, but also enhances control response speed and reliability, while improving overall energy-management efficiency.
In the MEA power architecture, electrical energy is typically supplied through a three-tier system:
the primary power is generated by high-efficiency generators driven directly by the aircraft engines; the auxiliary power is provided by smaller generators driven by the Auxiliary Power Unit (APU), supporting ground operations or emergency modes; and in extreme failure scenarios, the Ram Air Turbine (RAT) is deployed to drive an emergency generator, ensuring minimum power supply for essential systems.
To accommodate a wide range of onboard electrical loads, modern MEA platforms employ a multilayered power-distribution architecture that integrates constant-frequency AC, variable-frequency AC, and high-voltage DC buses. Typical configurations include a 115 V / 400 Hz AC bus, variable-frequency systems operating between 360 and 800 Hz, and a 270 V DC bus, complemented by a 28 V low-voltage DC branch—together forming a flexible and scalable onboard microgrid.
In the MEA system architecture and component testing, a high-performance programmable AC power source is required to simulate various normal and abnormal power supply conditions, in order to verify system energy consumption and reliability.
The ITECH IT-EC7800 series, a high-performance high-power programmable AC/DC power supply, supports four output modes: AC, DC, AC+DC, and DC+AC. Its voltage rating is 350 V L-N, with an output frequency range of 16–1000 Hz. Both voltage and frequency are adjustable, and it supports single- and three-phase output.
With just one IT-EC7800, users can achieve:
- Variable-frequency AC output at 115/230 VAC and 360–800 Hz
- Fixed-frequency AC output at 115 VAC/400 Hz
- DC output at 28 V, 270 V, or 540 V
It also supports CSV waveform import, allowing arbitrary waveform output for the development and testing of onboard secondary power systems.
The IT-EC7800 series programmable AC power supply combines advanced Silicon Carbide (SiC) technology with a high power density design, delivering up to 6 kVA output power in a 2U chassis, and up to 15 kVA in a 3U chassis, balancing compact size with high performance.
This series features a built-in high-precision power meter and arbitrary waveform generator, supporting harmonic simulation, complex waveform output, and extensive data analysis functions. It is equipped with an intuitive LCD touchscreen for easy operation.
The IT-EC7800 is widely applicable in industries such as renewable energy, power electronics, and academia, for research and development verification, production testing, and quality control scenarios.
