Key Technology
WZ-180 Turboshaft Engine
The WZ-180 turboshaft engine is a small compact engine consisting mainly of a gas generator and a gearbox with a free turbine. At high temperatures, the maximum continuous power can reach 180 kW, and there is no need to warm up at -30°C. The engine is equipped with an automatic lubricating oil system, starter, digital engine control unit (ECU), fuel system, low-pressure ignition and cables. The engine control unit is equipped with an external communication CAN interface, and an external 24V on-board power supply is required for start-up.
WD-300E Turboshaft Hybrid Power System
The WD-300E turboshaft hybrid system is developed based on the existing technology of the WZ-180 turboshaft engine. This system adopts a serial architecture and consists of subsystems such as power generation, energy storage, energy distribution, and electric propulsion. Among these, the power generation system includes the gas turbine engine, generator, and generator controller. The energy storage subsystem includes the power battery and battery management system (BMS). The bidirectional DC/DC converter is an important part of the energy distribution subsystem, responsible for managing and regulating the electrical power for the electric propulsion subsystem, power generation subsystem, and energy storage subsystem, using relevant energy management algorithms to ensure optimal system performance. The electric propulsion subsystem includes the engine and its controller, providing power for the helicopter's main rotor, propeller, and multirotor. According to the task requirements, the system flexibly adjusts the size layout of the propellers and optimizes the ratio of fuel to battery, thereby achieving stronger endurance/load capacity or better fuel economy.