From September 15 to 17, Guangzhou Zhiguang Electric Technology Co., Ltd. (“Zhiguang Electric Technology”) participated in the 2026 International Digital Energy Exhibition in Shenzhen, showcasing its comprehensive capabilities and engineering achievements in high-power power electronics and flexible energy technologies.

A key highlight of the exhibition was the 430 kW liquid-cooled string-type energy storage PCS, the standard core unit of Zhiguang Electric Technology’s 1.55 MW/6.25 MWh AC/DC integrated large-scale energy storage system. The solution delivers enhanced performance while offering greater flexibility for diverse application scenarios.

The PCS features multiple operating modes and can respond to dispatch commands within 30 ms, with staged overload capability. Its grid-forming control enables stable operation under weak-grid conditions, while millisecond-level on-grid/off-grid switching helps maintain uninterrupted power supply to critical loads. An efficient liquid-cooling system and high protection rating enable reliable operation across challenging environments, including wide temperature ranges and high-altitude areas. The PCS is compatible with the full range of 314 Ah–587 Ah battery cells, providing greater flexibility for system configuration optimization and cost control.

The 1.55 MW/6.25 MWh AC/DC integrated energy storage system is equipped with four PCS units per container, with each PCS precisely connected to two clusters of 587 Ah high-capacity battery cells. Its distributed “one cluster, one management” architecture helps mitigate circulating currents and the “barrel effect,” improving overall system efficiency. The system also adopts a “no DC connections outside the container, fully AC-connected externally” design and factory pre-integration, significantly simplifying on-site installation and commissioning while shortening project delivery cycles.

Also on display were Zhiguang’s Coota solid-state transformer, high-voltage variable-frequency drive system, and high-voltage dynamic reactive power compensation device. All these products are developed on the company’s core high-power power electronics technology platform.

With more than two decades of industry experience, Zhiguang Electric Technology offers a comprehensive portfolio covering diverse application scenarios, including power grids, renewable energy, industrial applications, and ports. Its products have been deployed in benchmark projects and exported to numerous countries and regions worldwide.

Throughout the exhibition, Zhiguang Electric Technology engaged in in-depth discussions and technical exchanges with a large number of domestic and international customers and industry experts. Discussions covered product technologies, application scenarios, and project implementation, with multiple areas of cooperation reaching preliminary consensus.

Looking ahead, Zhiguang Electric Technology will continue to advance core high-power power electronics technologies, accelerate innovation and commercialization of flexible power technologies, and work with partners worldwide to drive the global energy transition.