Against the backdrop of intensifying global climate change, extreme weather events have occurred frequently, and lightning activities have exhibited new characteristics and patterns, which places higher demands on lightning scientific research.

Application Value: The implementation of this project will break foreign technological monopolies and enable the development of a new-type lightning simulation facility with fully independent intellectual property rights.

The construction of a lightning research platform serves as fundamental support for deepening the study of lightning mechanisms and driving scientific breakthroughs. It is also a key strategic initiative to enhance China’s lightning protection technology and secure the leading position in formulating relevant standards.

Novel Principle Impulse Voltage Generator

The output peak voltage shall be no less than 3 MV, and the maximum voltage rise rate shall be no less than 2 kV/μs. The structural load-bearing capacity shall satisfy the installation and operation of multiple unit modules. The overall height shall not exceed 18 m. The insulation withstand voltage shall meet the 1-minute power-frequency withstand voltage requirement of ≥ 45 kVrms.

High-Voltage Programmable Power Supply Module

Output voltage ≥ 40 kV with a deviation ≤ 1%; cascade output of multiple modules shall achieve voltage ≥ 3 MV; maximum tracking error of output voltage waveform ≤ 3%. Equipped with optical fiber control and condition monitoring interfaces, it supports power-on and power-off control, and is fitted with an energy storage element discharge circuit and an energy bypass circuit to ensure safe energy release during system shutdown.

High-Power High-Voltage Resistor-Capacitor Voltage Divider Measurement Module

Rated 3 ms impulse voltage: ≥ 3600 kV; voltage division ratio: approximately 10000:1; measurement accuracy: ±3%; capacitance: 150 pF ±10%; resistance: 2 GΩ ±10%; DC power rating: ≥ 1 kW; total height: ≤ 18 m.

Multi-Power Coordinated Control Device

The time precision of the multi-power coordinated control device is less than 5 μs, enabling coordinated control of the novel impulse voltage generator and other power supplies.

Adopting the top-level design philosophy of modular construction, distributed control, layered insulation, and intelligent coordination, the system builds an innovative impulse voltage generator based on a series connection of 80 independent 44 kV power supply modules.The total charging voltage of the system is 3.5 MV. Taking into account output efficiency and service life, the total output voltage is ≥ 3 MV, with a peak power reaching the megawatt level.The overall architecture consists of four core layers: power supply module layer, mechanical support layer, control layer, and measurement layer.