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Frequency conversion main power ship power station

A main power supply and ship technology, applied in the direction of controlling generators, electrical components, and generators through magnetic field changes, can solve problems such as energy waste, prime mover speed adjustment, etc., to avoid synchronization failures, reduce losses and interference, and improve. The effect of grid regulation capability

Active Publication Date: 2018-12-21
JIANGSU ZHENJIANG SHIPYARD GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problem of energy waste caused by the constant rotation speed of the prime mover and the inability to adjust with the change of the load when the power load of the ship changes greatly under different working conditions

Method used

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  • Frequency conversion main power ship power station
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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 As shown, the main circuit of the present invention's frequency conversion main power ship power station includes a prime mover ME, a generator G, a rectifier 1, a direct current busbar DC, an alternating current busbar AC, an inverter 2, and a frequency converter 3. The prime mover ME, the power generator The generator G and the rectifier 1 are multiple groups, the prime mover ME is connected with the generator G to drive the generator G to rotate, the generator G outputs electric energy to the rectifier 1, and the rectifier 1 is connected to the DC busbar DC, and the The direct current is transmitted to the direct current busbar DC, and the inverter 2 is connected between the direct current busbar DC and the alternating current busbar AC, and converts the direct current of the direct current busbar DC into an alternati...

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Abstract

The invention discloses a variable-frequency main power source ship power station, and the power station comprises prime motors ME, engines G, rectifiers, a DC busbar DC, an AC busbar AC, an inverter, and a frequency converter. There are a plurality of groups of motors ME, engines G and rectifiers. The motors ME are connected with the engines G, and drive the engines G to rotate. The engines G output electric energy to the rectifiers, and the rectifiers are connected with the DC busbar DC, and transmit the direct current to the DC busbar DC. The inverter is connected between the DC busbar DC and the AC busbar AC, enables the direct current of the DC busbar DC to be converted into the alternating current with the rated frequency, and supplies the alternating current to the AC busbar AC of the ship power station. The frequency converter is connected with the DC busbar DC, and the direct current is used for controlling variable-frequency power utilization equipment through the frequency converter after frequency conversion. The invention solves a problem of energy waste caused by the condition that the rotating speeds of prime motors ME are constant and cannot be adjusted along with the load change when the change of a power utilization load of a ship under different work conditions is bigger.

Description

technical field [0001] The invention relates to a ship power station, in particular to a ship power station with variable frequency main power supply, and belongs to the technical field of ship power stations. Background technique [0002] Ship construction regulations require that "every ship must be equipped with a main power source", "the main power source should be composed of at least two mutually independent generator sets. The capacity of the generator set must be such that any generator set fails or When out of service, the capacity of the remaining generator sets is still sufficient to power all the equipment needed while sailing at sea." Since the capacity of low-voltage generators generally does not exceed 2.5MW, when the power of the main power supply of various types of ships exceeds 5MW, only multiple independent generator sets are equipped. Even when the power of the main power is below 5MW, if the main power is provided by a shaft generator, a backup main po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/02H02J3/38H02P9/04H02P9/38
CPCH02J3/02H02J3/38H02P9/04H02P9/38
Inventor 夏进徐犇刘磊韩杰温莉周洋
Owner JIANGSU ZHENJIANG SHIPYARD GROUP
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