Guangzhou Zhiguang Electric Technology Co., Ltd (Zhiguang Electric) successfully developed a dedicated load test power supply for Solid State Transformers (SST). This innovation addresses a core bottleneck in the SST industry chain and fills a gap in the industry for reliable high-voltage SST reliability testing solutions.
Currently, solid-state transformers are at a crucial window, transitioning from the laboratory to industrialization. This is driven by multiple trends such as the global energy transition, the AI computing revolution, as well as global restructuring of power supply architectures. However, companies commonly face shortcomings in power supply testing capabilities and lack of industry standards for SST reliability verification. This has significantly constrained the SST industry ability to advance from prototype research to a new stage of standardized mass production and large-scale development.
The launch of Zhiguang Electric Technology’s SST load test power supply is more than just a piece of testing equipment. It overcomes one of the key barriers to SST commercialization by providing comprehensive high-voltage system reliability testing. The platform will serve as a critical foundation for SST validation, production testing, and performance optimization while strengthening the company’s first-mover advantage in the domestic new-generation DC power supply sector and integrating the company’s technology layout across the entire SST industry chain.
Relying on the company’s technical expertise in field of high-power electronics, the Zhiguang Electric Technology SST Load Testing Power Supply is safe, intelligent, and controllable. It improves test precision and accuracy, ensures stability of equipment for on-site operations, and constructs a complete closed-loop testing platform for SST systems.
1.Modular Power Electronics Architecture for High Efficiency and Scalability
The product adopts a modular power electronics design architecture based on a proven bidirectional power conversion topology which enables two-way energy flow. With energy feedback efficiency among the industry’s leading levels, it significantly reduces energy consumption during testing while providing flexible scalability.
2.Up to 5 MW Testing Capacity for Full-System SST Validation
A single system has a maximum test capacity of up to 5MW which fully covers the testing requirements of current mainstream high-power SST equipment.
3.Comprehensive Operating Condition Simulation
The platform supports multiple operating modes, which it can switch between seamlessly, including constant voltage, current, power, and resistance. It can simulate a wide range of operating scenarios including 800V/10kV/35kV voltage levels, transient urges, and harmonic superposition.
Earlier this year at the end of May, the company officially launched its Coota Solid State Transformer (SST), providing a clear technological pathway for large-scale renewable energy integration and energy system transformation. The addition of the Solid State Transformer (SST) load test power supply reflects the company’s goals to form a complete closed-loop supply chain of “domestic SST complete machines + domestic specialized test equipment.”
Zhiguang Electric will continue to strengthen its technological leadership and core competitiveness, contributing to the development of an efficient, low-carbon, and intelligent energy and AI computing infrastructure ecosystem.
