The intelligent ship shore power system mainly consists of the following equipment:
Inlet switchgear, inverter power cabinet, phase-shifting transformer, output switchgear, shore power management system, shore power socket box, etc.
(The high-voltage system includes: neutral point protection system, filtering and inrush current suppression system.)
Reliable phase sequence detection and setting technology ensures safe grid-connected operation of the system;
Low voltage ride-through technology maximizes both power supply continuity and equipment safety;
High-precision voltage and frequency stabilization control technology achieves stable output voltage control;
Automatic synchronization ship-to-shore seamless switching technology ensures efficient and continuous power supply;
Smart microgrid distribution technology meets the needs of shore-to-ship power connection in various scenarios;
Output parameters: Output voltage harmonics <1%, load stability <1%, three-phase output voltage imbalance <2%; output frequency resolution 0.01Hz;
Input:
Phase, Frequency: Three-phase: 50/60Hz
Allowed frequency fluctuations: -5 ～ +5%
Input Voltage: Normal operation within -15 to +15%
Input power factor: >0.96 (overloaded at 20% capacity)
Rectifier circuit: 36 pulse wave (6 levels in series)
Input current harmonics：<3% (rated load)
Output:
Overload capacity: Normal operation is possible for 60 minutes at 110% of rated output current based on the rated output current; inverse time limit protection at 200% and above output current.
Rated voltage/frequency：6kV/50Hz or 6.6kV/60Hz, 400V/50Hz or 440V/60Hz；Switchable with one click
Three-phase voltage unbalance：≤2%
Three-phase current unbalance：≤30% (Customizable for special requirements)
Load stabilization rate：Output voltage 6.6kV, when 0-100% load change
Output voltage stabilization rate: -1%≤static≤1%, -3%≤dynamic≤3%;
Output voltage
Harmonics (no load)：≤1% (filter state)
Output frequency：
Accuracy 0.01Hz
Output frequency 60Hz/50Hz, when 0-100% load change Output frequency change rate ≤0.1%
