1) Control cabinet: It includes the main low-voltage control units such as controllers and PLCs, which are isolated and connected to the high-voltage part through optical fibers;

2) Power cabinet: used to install power units and is the main energy conversion and storage link;

3) Power unit: the main link of frequency conversion, realizing rectification, energy storage, and inversion;

4) Transformer cabinet: installation space for phase-shifting transformers, realizing the change of electrical energy from high voltage to low voltage, and effectively filtering out input harmonics;

5) Bypass cabinet (optional): composed of standard "manual one to one", "manual one to two", "manual two to three", "automatic one to one", "automatic one to two" or other non-standard circuits through the cooperation of knife switches, contactors or circuit breakers;

6) Resistance cabinet (optional): optional for ultra large capacity systems, used for charging current limiting or energy consumption, etc;

7) Synchronous cabinet (optional): Non standard contract optional, realizing grid connection switching or energy feedback.

The HD high-voltage variable frequency speed regulation system is a high-tech product independently developed by HORIDEL Technology Company, which integrates power electronics, high-voltage technology, microelectronics technology, optoelectronic communication technology, computer technology, automatic control technology, etc. After decades of on-site application, redevelopment, and optimized design, the HD high-voltage variable frequency speed regulation system has formed a complete series of industrial control energy-saving equipment with high stability and leading technology. At present, our products include high-voltage universal frequency converters and four quadrant high-voltage frequency converters.