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Low-voltage shore power supply

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Product Description

product description
VS70P series low voltage shore power supply adopts low voltage four-quadrant technology, the front end adopts AFE active rectifier front end, the middle link adopts common DC bus, the output adopts LCL filter, the carrier frequency is up to 4K, the output power quality is better, and the power factor is almost close to 1. Low harmonic design reduces harmonic pollution to the power grid. Through software control combined with the four-quadrant principle, the generation of reverse power is suppressed from the source, and the reverse power problem is completely solved, and the system reliability is industry-leading.

System principle

VS70P series low-voltage shore power variable frequency power supply is based on Wisker’s years of mature low-voltage platform technology, and is a new generation of high-performance variable frequency power supply customized for shore power application requirements. It has the advantages of fast dynamic response, strong overload capacity, and high control accuracy. The choice of system topology, control performance, or heat dissipation system design are second to none. The most critical design is the modular power unit design, which is specifically expressed as:
1. The modular four-quadrant POWER UNIT design maximizes the depth of the cabinet and greatly reduces the size of the cabinet;

2. The slide rail is installed and maintained easily. Single person can realize the operation;
3. The internal communication network adopts optical fiber network, which has fast communication transmission speed and strong anti-interference ability;
4. The expandable function is strong, which is convenient for subsequent expansion and transformation;
5. Heavy-duty design, when the ship is started with a high-power load, it can be unaffected, 1.5 times overload for 1 minute, 2 to 4 times reverse time
Limit protection, the protection curve can be set;

System Components

The typical VS70P series low-voltage shore power supply mainly includes: control cabinet, rectifier inverter cabinet, and isolation transformer cabinet. The input voltage is generally 690V or 400V.

Technical Parameters