Four-Quadrant High-Voltage Inverter HC2000

The HC2000 series four-quadrant high-voltage variable frequency drive is built on a four-quadrant platform and features a novel regenerative rectifier topology. Compared with the previous generation, its footprint has been reduced by 50%, significantly saving installation space. It supports both open-loop and closed-loop vector control for induction motors, permanent‑magnet machines, and electrically excited synchronous machines. In addition, innovative Torque Prediction Control (TPC) and Feedforward Compensation (FFC) technologies ensure that hoisting systems can achieve zero‑speed hovering. The drive is suitable for a wide range of applications, including mine hoists, downhill belt conveyors, wind, hydro, and gas‑turbine power generation, as well as drag‑load test benches and pumped‑storage systems.

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Single-Sided Maintenance High-Voltage Inverter HC1000S

The HC1000S series inverters from Hekang New Energy revolutionize conventional inverter maintenance, featuring compact installation space, stable operation, and a user-friendly, easy-to-use interface. They readily handle a wide range of complex operating conditions and are ideally suited for installation and use in space-constrained environments. The HC1000S’s input power meets the IEEESTD 519‑2014 and GB/T 14549‑1993 standards, eliminating the need for a separate input filter and helping users reduce harmonic mitigation costs. Moreover, with a high system power factor, no additional power factor correction device is required, effectively minimizing reactive power consumption and lowering the required input capacity.

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Water-cooled high-voltage variable frequency drive HC1000W

The HC1000W series is a water-cooled high-voltage inverter specifically designed for ultra‑high‑power loads, delivering up to 60 MW of robust output. It integrates long‑life components with redundant fault‑tolerance technologies, incorporating features such as film capacitors and low‑voltage ride‑through capabilities to comprehensively enhance reliability. This solution provides dependable high‑voltage variable‑frequency drive systems for equipment ranging from 5 to 60 MW, ensuring stable operation for more than 30 years. Furthermore, the HC1000W employs an advanced, self‑developed water‑cooling thermal management system that offers superior enclosure, enabling it to withstand harsh environments and reliably handle demanding conditions characterized by high dust levels, severe corrosion, and elevated altitudes.

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General-purpose Series High-Voltage Inverter HC1000

The HC1000 series high‑voltage variable frequency drives meet the IEEE Std 519‑2014 and GB/T 14549‑1993 standards for power‑supply input, eliminating the need for a separate input filter and thereby reducing harmonic‑mitigation costs for users. The system boasts a high power factor, obviating the requirement for a power‑factor correction device, which effectively decreases reactive power consumption and lowers the required input capacity. The drive’s input is stepped down to the secondary side via a phase‑shifting transformer and then subjected to phase shifting; a multi‑pulse diode rectifier is employed to provide an isolated power supply to the power units, thereby suppressing most of the harmonic currents generated by individual power units.

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