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ZINVERT Intelligent HV Variable Frequency Speed Control System for Synchronous Motors

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ZINVERT intelligent HV variable frequency speed control system for synchronous motors is developed by Zhiguang Electric specifically for the control of such motors.
 

Scope of Application
Such system has a wide range of applications in sintering fans, compressors and other similar operating conditions.


System Principle

With the advanced speed sensor-less vector control technology, ZINVERT intelligent HV variable frequency speed control system for synchronous motors avoids high-impulse currents during startup of synchronous motors, easy out-of-phase or vibration during heavy load starting and speed control of such motors. It makes the accurate control of output rotational speed possible and eliminates the need to regulate the exciting current of the excitation cabinet, thus ensuring easier and more reliable control. Furthermore, this product can restart in case of momentary interruption. In other words, this system can track the rotational speed of such synchronous motors within one second after recovery from momentary interruption in a grid. It can also achieve non-impact restarts and accelerate the restoration to the defined rotational speed. Thus, there is no need to restart after the synchronous motor completely stops. In this way, the continuous and stable operation of load and production process can be ensured.

 

2014 - 05 - 09
Special HV Frequency Converters for 10000kVA Synchronous Motors Put into Operation Successfully    Upon successful operation of special ultra-large capacity frequency converters for synchronous motors in Fujian Xinhai Metallurgical Company Limited and Hebei Xinjin Iron & Steel Co., Ltd., our 2×10000 kVA special frequency converters for synchronous motors were successfully p...
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