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ZG_SPS Shore Variable-Frequency Power System

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This ZG-SPS shore power system is developed by Zhiguangspecially for the green and environmental-friendly development of the port industry. It is integrated with a series of mature technologies developed by Zhiguang, including high-power HV variable frequency control, grounding of distribution networks, control and access of power management systems and cable reels. It has a wide range of applications with special demands for power, such as marine traffic.
Furthermore, Zhiguang can do research on special power technologies and offer product customization services upon different demands of customers. It can offer customers special power supply units with voltages between 0.4 kV - 35 kV and diversified capacities.
The ZG_SPS shore variable-frequency power system applies series power unit technology and directly outputs 6.6 kV or 6 kV voltage, or 0.45 kV or 0.4 kV voltage via a transformer. It is a voltage source inverter (VSI). The power units are connected in series instead of power devices connected in direct series. Thus, no issue related to their withstand voltage will occur. Moreover, SPWM signals output by power units of different levels have the in-phase superposition after phase shifting, so leading to the improved harmonic performance and reduction in dv/dt of the output voltage. The active inverter is used to control the capacitive voltage. For the main controller, the latest dual digital signal processors (DSP) for motor control and VLSI programmable devices (CPLD and FPGA) used as core units, as well as the data acquisition system, unit controller, optical fiber communication circuit and built-in programmable logic controller (PLC), constitute the system control unit.

ZG_SPS Shore Variable-Frequency Power System

 

2017 - 05 - 11
Recently, the shore power project in Yingkou Port, in which Zhiguang Electric was responsible for development and provided the product technology, was put into formal operation. It was the first HV vessel shore power project in northeast China and successfully passed the expert review.In this project, a set of Zhiguang's 2 MVA and 3 MVA container-type shore power systems was respectively installed...
2016 - 05 - 11
The First HV Shore Power System of Qingdao Port Fulfilled the Power Connection in One Shot  On July 2, the first HV vessel shore power system provided by Guangzhou Zhiguang Electric Co., Ltd. for Qingdao Port successively supplied green power to the "APL JAPAN" container ship docked at the QQCTU 103 berth, indicating that this port has become able to supply HV shore power to large-s...
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This ZG-SPS shore power system is developed by Zhiguangspecially for the green and environmental-friendly development of the port industry. It is integrated with a series of mature technologies developed by Zhiguang, including high-power HV variable frequency control, grounding of distribution networks, control and access of power management systems and cable reels. It has a wide range of applications with special demands for power, such as marine traffic. Furthermore, Zhiguang can do research on special power technologies and offer product customization services upon different demands of cust...
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