Intelligent shore power system and grid connection method
A technology of electric system and power grid, applied in the field of shore power system for intelligent identification of undisturbed switching of ship power grid, which can solve problems such as inapplicability of multiple power systems, transient impact of grid connection, and impact on ship equipment safety, etc., achieving high accuracy , fast response, fast effect
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[0032] Example 1
[0033] See figure 1 , figure 1 It is a block diagram of the intelligent shore power system.
[0034] The present invention provides an intelligent shore power system, including a variable frequency power supply, a switching network, and a reactor. The reactor is a three-phase reactor. The variable frequency power supply includes a rectifier module, an inverter module, a bus, a variable frequency power controller, and a communication Module, power grid sampling module; the rectifier module, bus bar, inverter module, variable frequency power supply controller, grid sampling module, switching network and reactor are connected in sequence, the communication module is connected with the variable frequency power supply controller, and the bus Connected to the variable frequency power supply controller; the power grid sampling module is connected to an external ship power supply cable through a sampling line, the power grid sampling module acquires external ship power g...
Example Embodiment
[0037] Example 2
[0038] See figure 2 , figure 2 It is a block diagram of the intelligent shore power system.
[0039] The invention provides an intelligent shore power system, which includes a variable frequency power supply, a switching network and a reactor. The variable frequency power supply includes a rectifier module, an inverter module, a bus, a variable frequency power controller, a communication module, and a grid sampling module; the rectifier module , The bus, the inverter module, the variable frequency power supply controller, the grid sampling module, the switching network and the reactor are connected in sequence, the communication module is connected to the variable frequency power controller, and the bus is connected to the variable frequency power controller; A first vacuum contactor is connected between the inverter module and the reactor, the power grid sampling module is connected to an external ship power supply cable through a sampling line, and the power ...
Example Embodiment
[0051] Example 3
[0052] See image 3 , image 3 It is a block diagram of the intelligent shore power system.
[0053] An intelligent shore power system includes a variable frequency power supply, a switching network and a reactor. The variable frequency power supply includes a rectifier module, an inverter module, a bus, a variable frequency power controller, a communication module, and a grid sampling module; the rectifier module, bus, The inverter module, the variable frequency power supply controller, the grid sampling module, the switching network, and the reactor are connected in sequence, the communication module is connected to the variable frequency power controller, and the bus is connected to the variable frequency power controller; the grid sampling The module is connected to the external ship power supply cable through the sampling line. The power grid sampling module obtains the external ship power grid information in real time, and transmits the external ship powe...
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