High-reliability tactical support and logistics equipment configured to keep commercial, military, and private air fleets operating seamlessly.
Decarbonization, Operational Economy, and Noise Control on the Modern Tarmac.
Aircraft Auxiliary Power Units (APUs) consume significant fuel and emit greenhouse gases while generating excessive noise during gate turnarounds. Switching to modern solid-state Fixed Ground Power Units (FGPUs) allows airports to completely shut down jet engines and APUs, resulting in immediate fuel savings and a drastic reduction in carbon footprints.
Running aircraft APUs is roughly 5 to 10 times more expensive than consuming grid electricity via an energy-efficient fixed ground power unit. FGPUs dramatically decrease maintenance overhead for onboard aircraft generators while offering a continuous, clean utility connection with a lifetime spanning over 15 years.
Leveraging high-frequency solid-state conversion technology, our fixed ground static power units feature an overall operational efficiency exceeding 95%. This efficiency minimizes thermal dissipation and energy loss, stabilizing regional utility grids during intensive peak aviation traffic hours.
Under the hood of industrial-grade 400Hz solid-state converters and 28.5V DC power rectifiers.
Fixed Ground Power Units are the lifeblood of parked aircraft. Our systems are engineered using modular double-conversion topologies where incoming local main power (typically 3-phase 380V/400V/480V at 50Hz/60Hz) is rectified into a stabilized DC intermediate bus before being inverted back to precise 400Hz AC power or regulated 28.5V DC. This isolates the aircraft from grid fluctuations and safeguards sensitive military and commercial avionics.
| Parameter / Feature | 400Hz AC Static Ground Power Unit | 28.5V DC Solid-State Rectifier | Energy Storage Towable/Hybrid GPU |
|---|---|---|---|
| Typical Output Capacity | 90kVA, 120kVA, 180kVA, 250kVA | Up to 800A (Continuous) / 2000A (Starting Peak) | 45kWh to 90kWh Battery Buffer Capacity |
| Total Harmonic Distortion (THD) | < 2% under linear loads; < 3% under non-linear | Ripple Voltage < 0.5% (Very Low Noise) | < 2.5% stabilized output |
| Inverter Module Topology | Infineon IGBT Multi-level Pulse Width Modulated | 12-pulse or Active Front End (AFE) PWM Rectification | Bidirectional DC-DC Converter + PWM Inverter |
| Overload Performance | 125% for 10 mins; 150% for 1 min; 200% for 5 secs | 150% for 30 secs; 200% for 5 secs | 130% overload capability |
| Protection Rating | IP55 (Standard Outdoor Enclosure) / IP65 available | IP55 (Weatherproof double layer cabinet) | IP54 Mobile chassis integrated |
| Galvanic Isolation | Integrated output isolation transformer | Built-in input isolation transformer | Fully isolated output stage |
Tailoring electrical distribution for single-gate gates, maintenance hangars, and vast multi-terminal networks.
Decentralized deployment mounts the Fixed Ground Power Unit directly to the underside of the Passenger Boarding Bridge (PBB) or on a dedicated stand close to the aircraft parking position. This minimizes voltage drops through shorter 400Hz cabling, eliminates complex underground routing, and simplifies maintenance routines with modular swapped units.
Centralized systems utilize a single high-capacity 400Hz frequency converter bank positioned in a central electrical room. The output power is distributed to multiple maintenance bays and boarding gates through specialized underground cable trenches or overhead droops. This configuration reduces hardware costs but requires careful line voltage compensation design.
Our FGPUs are equipped with smart climate controls. Internal air-to-air heat exchangers protect sensitive electronics from desert dust, tropical humidity, and arctic freezing (-40°C to +55°C). Anti-condensation space heaters run automatically in high humidity environments to prevent dielectric breakdown in critical transformers.
Pioneering hybrid energy storage, smart telemetry, and wide-bandgap semiconductors.
We are migrating our high-power converters from standard silicon IGBTs to Silicon Carbide (SiC) MOSFETs. This transition allows for higher switching frequencies, reduces filter footprints by 35%, and increases overall conversion efficiency toward a theoretical limit of 98.8%, dramatically scaling down waste heat.
Tomorrow's airport tarmacs will face severe grid constraints. Our upcoming FGPUs will feature integrated Lithium Iron Phosphate (LFP) energy storage buffers. These batteries charge slowly during low traffic periods and discharge rapidly during heavy peak aircraft starting sequences, saving airport operators from costly utility peak-demand charges.
Real-time status tracking via Modbus TCP, CAN bus, or wireless 5G connections feeds data directly into central airport building management systems (BMS). Using cloud-based AI algorithms, engineers can predict component wear, monitor output ripple quality, and schedules preventive maintenance before an unscheduled downtime event occurs.
Meeting stringent global military and civilian aviation authority requirements.
Strict compliance with EN 61000-6-2/4 rules ensures that power outputs generate zero radio frequency interference (RFI) with air traffic control systems, airport radars, or onboard communications gear.
Our 28V and 400Hz systems utilize standard 90% plug presence interlock loops, EF control circuitry, output overload trip limits, phase sequence protection, and emergency shutoff controls on cable heads.
Why sourcing from our advanced manufacturing facility gives global operators a distinct procurement edge.
From winding our own isolation transformers and constructing heavy-gauge sheet metal enclosures to mounting high-precision PCB boards, we execute the entire manufacturing cycle under one roof in our certified Smart Factory. This eliminates third-party assembly delays and guarantees rigorous quality control at every stage.
Our engineering teams only utilize world-class internal components, including Infineon IGBT bridges, Texas Instruments DSP controllers, ABB contactors, and high-frequency copper-wound transformers. These global alliances allow us to offer long-term product lifespans while providing a significant cost advantage.
We provide comprehensive customization services for global purchasers. Whether you require specific input voltages (such as 400V 50Hz, 480V 60Hz, or 600V 60Hz), dual output channels, unique outdoor paint finishes, under-bridge mounting brackets, or customized diagnostic software interfaces, our engineers deliver tailored builds on schedule.
From tow dollies and passenger stairs to fuel tankers, deicing trucks, and heavy towing tractors.
Consists of a chassis, oil tank, pumping system, control system, operating panel, filtration, metering, and pressure control.
Heavy duty high-capacity airfield fuel transportation and dispensing chassis designed for broad commercial airline support.
Engineered with advanced pressure monitoring, fuel metering systems, and strict static grounding safety features.
We provide end-to-end custom engineering solutions for international commercial airlines, military airports, and specialized ground logistics companies. From concept definition, computer-aided CAD modeling, stress analysis, mechanical prototyping, to localized electrical certifications, we deliver turnkey solutions designed to maximize airport throughput.
Our service philosophy is built upon high-quality execution, strict compliance with international ground support specifications (GSE), and robust logistics, ensuring timely equipment delivery and seamless deployment across key hubs globally.
Critical engineering answers to support high-frequency static converter design, compliance, and power distribution.
Aviation systems rely on 400Hz frequency to reduce the size and weight of electrical equipment. The size of magnetic components (like transformers, generators, and electric motors) is inversely proportional to the frequency. By operating at 400Hz rather than 50/60Hz, magnetic cores can be made significantly smaller and lighter, saving valuable weight on board the aircraft. Fixed Ground Power Units must convert utility grid frequencies (50Hz or 60Hz) into clean, high-precision 400Hz AC power to run onboard instrumentation, avionics, lighting, and air-conditioning during turnarounds.
Solid-state FGPUs utilize high-frequency IGBT switches and DSP microcontrollers with no moving parts. Compared to rotary (motor-generator) systems, solid-state units provide:
1. Higher efficiency (typically 94%–96% vs. 80%–85% for rotary systems).
2. Negligible maintenance requirements due to the absence of bearings, belts, and rotating shafts.
3. Lower acoustic signature (operating noise levels under 65 dBA at 1 meter).
4. Rapid transient response time and highly precise voltage regulation (<1% steady-state voltage variance).
Our Fixed Ground Power Units are equipped with multiple protective features:
• Phase sequence check & phase loss protection: Prevents connections if voltage phases are unbalanced or inverted.
• EF Interlock Control: Follows standard aviation interfaces. Safe output power is only activated when the plug's internal auxiliary pin detects feedback from the aircraft's internal relays.
• Under/Overvoltage protection: Instantly disconnects power if output drops below 104V or surges above 122V on AC rails.
• Line drop compensation (LDC): Automatically compensates for voltage drops across long output power cables, maintaining a steady 115V at the aircraft receptacle.
Yes. Our outdoor FGPUs are housed in robust, double-walled IP55 (or optional IP65) grade stainless-steel or heavy-duty aluminum enclosures. They include automated anti-condensation heaters, air-to-air heat exchangers or closed-loop cooling configurations, and customized dust/sand filtration modules. This guarantees reliable operation across extreme ambient temperatures ranging from -40°C to +55°C.
Supplying reliable ground equipment to international airports, commercial airlines, and heavy air cargo hubs.
Stay updated with the latest industry regulations, technical trends, and product development guides.
Ensure flight readiness and streamline ground operations with our certified logistics, transport, and service support trucks.
Chidge Dolly
