High-Voltage Cascaded Energy Storage System

The grid‑side high‑voltage cascaded high‑power energy storage system is a core product of the mainstream grid‑forming energy storage technology pathway for the future. Developed jointly by Chint and Tsinghua University, it employs a cascaded topology that eliminates the need for transformers, features cluster‑level battery management with enhanced protection, and achieves a round‑trip efficiency of 90%. Each unit can independently respond to grid dispatch commands, supports black‑start capability, and delivers a response time of no more than 20 ms. Moreover, its advantages become more pronounced as capacity increases, making it particularly well suited for large‑scale standalone energy storage power stations.

NGH-40.5kV Eco-friendly Gas Switchgear

The device uses nitrogen (N2) as the insulating medium, which is readily available, clean, and environmentally friendly, while delivering excellent insulation performance to ensure safe and stable operation at zero gauge pressure. It features a modular architecture with long service life and stable, reliable performance; the three‑position disconnector and circuit breaker are designed as a modular combination, enabling off‑site assembly and facilitating convenient commissioning. An observation window on the gas compartment allows visual monitoring of the three‑position switch status. The equipment meets the stringent requirements of special environments, including high altitude, seismic resistance, and pollution resistance. Its block‑type expansion and modular construction provide flexible scalability and ease of maintenance. Moreover, it has achieved significant breakthroughs in zero‑gauge insulation and high‑current temperature rise, enabling seamless compatibility between SF6 and environmentally friendly gases.

High-Voltage Cascaded Energy Storage

High system efficiency: ≥92%, leading the industry Supports large‑capacity cells: Compatible with high‑energy‑density, large‑size cells; incorporates the latest cell‑management technology for enhanced safety Superior control and protection: Employs a cutting‑edge second‑generation control‑protection platform, fully domestically produced, offering faster processing, greater scalability, and lower power consumption.