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Device and method for achieving seamless switching between ship generator and onshore power source

A shore power supply and seamless switching technology, applied in circuit devices, emergency power supply arrangements, electrical components, etc., to achieve the effects of small inrush current, easy implementation and simple structure

Inactive Publication Date: 2015-05-06
CHINA SHENHUA ENERGY CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a seamless switching device and method for shore power supply to solve the problem of switching between ship generators and shore power supply

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  • Device and method for achieving seamless switching between ship generator and onshore power source
  • Device and method for achieving seamless switching between ship generator and onshore power source

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Embodiment Construction

[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0023] For ease of description, in this embodiment, the ship generator and ship TV are regarded as the same concept, the shore power supply and shore TV are regarded as the same concept, and the seamless switching, paralleling and synchronous paralleling are regarded as the same concept.

[0024] This embodiment is mainly aimed at a device and method proposed by the present invention to realize seamless switching between ship generators and shore power supplies. There are not many descriptions for related hardware equipment such as ship generators and shore power supplies. The hardware equipment is enough, for example, the relevant hardware equipment involved in...

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Abstract

The invention provides a device and method for achieving seamless switching between ship generator and onshore power source; the device comprises a signal collecting unit, an information process unit, and a signal transmitting unit; the signal collecting unit is used for collecting data required for achieving the seamless switching between the ship generator and the onshore power source; the information process unit is used for determining switching conditions and switch-on conditions based on the data collected by the signal collecting unit, and calculating control signals based on the switching conditions and the switch-on conditions; the signal transmitting unit is used for sending a switch-on signal or a switch-off signal to the onshore power source based on the control signals calculated by the information process unit, and sending a voltage regulation and / or a frequency regulation signal to the ship generator, so as to achieve the seamless switching between the ship generator and the onshore power source. The device and method for achieving seamless switching between ship generator and onshore power source are easy to be implemented, can enable the voltage amplitude values, frequencies, and the like, of the ship generator and the onshore power source to keep the same, generate a slight impulse current, and achieve real seamless switching.

Description

technical field [0001] The invention relates to the technical field of ship power supply, in particular to a device and method for seamless switching of shore power supply. Background technique [0002] During the power generation process of ship auxiliary engines, air pollutants such as nitrogen oxides, sulfur oxides, and particulate matter are emitted. The pollutant emissions generated by the use of auxiliary engines for power generation during ships' berthing are important factors affecting the air quality of port cities. According to the statistics of the Hong Kong Environmental Protection Agency, the emissions of sulfur oxides, nitrogen oxides, and particulate matter from ships in Hong Kong account for 54%, 33% and 37% of the total emissions of corresponding pollutants, a large part of which comes from fuel-fired power generation of auxiliary engines of ships in port. Some countries and regions require ships to use low-sulfur oil to generate electricity to reduce emissi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/44
CPCH02J9/061H02J9/066
Inventor 韩宝宏孙峰黄如拼黄松洪桂穗新袁济忠
Owner CHINA SHENHUA ENERGY CO LTD
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