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Independent island power supply system

A power supply system, independent technology, applied in the direction of current collectors, electric vehicles, electrical components, etc., can solve the problems of unstable output power, low profitability, small scale, etc., to increase power generation capacity, ensure stable operation, improve The effect of stability

Active Publication Date: 2014-10-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] At present, due to the typical instability and dispersion of ocean energy, most single ocean energy utilization devices have many defects such as large investment, small scale, low profitability, and unstable output power, which seriously restricts the ocean energy utilization industry. the rapid development of

Method used

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Embodiment Construction

[0027] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0028] The independent sea-island power supply system provided by the invention includes a power supply device, a control center and a power controller.

[0029] figure 1 is the structure diagram of the power supply device, figure 1 Among them, the power supply device includes a wave energy generating unit, a first inverter, a sea current energy generating unit, a second inverter, a first storage battery unit, a first bidirectional chopper, a second storage battery unit, a second bidirectional chopper oscillating wave, flywheel energy storage unit and third bidirectional inverter.

[0030] The wave energy generating unit is connected with the first inverter, and is used for generating direct current through ocean wa...

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Abstract

The invention discloses an independent power supply system for islands, which belongs to the technical field of power control and is used for meeting the power supply demand of the remote islands. The independent power supply system comprises a power supply device, a control center and an electric energy controller, wherein the power supply device comprises a wave power generation unit, a first inverter, an ocean current power generation unit, a second inverter, a first storage battery pack unit, a first two-way chopper, a second storage battery pack unit, a second two-way chopper, a flywheel energy storage unit and a third two-way inverter, wherein the first storage battery pack unit and the second storage battery pack unit charge and discharge alternately; and the electric energy controller controls the first storage battery pack unit or the second storage battery pack unit to output voltage and current according to active power-frequency droop control coefficients and reactive power-voltage droop control coefficients, and controls the wave power generation unit and the ocean current power generation unit to output voltage and current according to the set active power and the set reactive power. The independent power supply system provided by the invention realizes power supply of the remote islands.

Description

technical field [0001] The invention belongs to the technical field of electric power control, and in particular relates to an independent sea-island power supply system. Background technique [0002] With the increasing depletion of global conventional energy and a series of environmental problems caused by the use of fossil energy, human beings must find a clean and sustainable energy path. As a clean and renewable energy, ocean energy has become an important part of the energy strategy of the world's major coastal countries. The "Twelfth Five-Year Plan" is an important period for the accelerated development of my country's marine industry, and it is also a critical period for promoting the optimization and upgrading of the economic structure and transforming the mode of economic development. In order to lead and improve the core competitiveness of marine renewable energy development and utilization, optimize my country's energy production and consumption structure, and pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J7/34
Inventor 顾煜炯王兵兵张原飞杜伟刘莎莎宋磊惠万馨王向志张婷婷雷少博信晶
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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