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Energy storage method in energy harvesting communication

A technology of energy storage and energy harvesting, applied in the field of wireless communication

Inactive Publication Date: 2018-09-04
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the problem that the communication nodes in the existing energy borrowing-aided energy harvesting wireless communication system (EB-aided EH system) can only borrow energy from the power grid but cannot store energy in the power grid, and proposes an energy storage-assisted energy harvesting system (ED-aided EH system), so that communication nodes can store energy in the grid to obtain energy interest, and at the same time help to alleviate the power supply shortage of the grid itself during the peak period of power consumption

Method used

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Embodiment

[0030] The specific implementation of the present invention is described below by taking the solar radiation data of one day in New York City in 2015 as an example. The real data is sampled with a time slot of 60 minutes. In order to be more accurate, we use the method of linear interpolation to make the length of the time slot 20 minutes. The harvested energy of the ith slot where x i =1W / m 2 is the solar radiation density, S=1cm 2 is the area of ​​the solar panel, Minute is the time slot length, and σ=20% is the energy conversion efficiency. The channel is an additive white Gaussian noise channel.

[0031] like figure 1 Shown is the structure diagram of the energy storage-assisted energy collection communication system. The communication node SN2 can collect energy from the surrounding natural environment, and has a battery to store energy. In addition, it is connected to the power grid and can store energy in the power grid. The power grid needs to return the store...

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Abstract

The invention, which belongs to the technical field of wireless communication, in particular relates to a method for designing an energy-harvesting wireless communication system assisted by energy storage. On the basis of the existing energy-harvesting communication system assisted by energy borrowing and returning, the communication node stores energy for the grid instead of borrowing energy fromthe grid and energy interests are created. When the energy storage method is applied to the energy-harvesting wireless communication system, influences caused by energy harvesting randomness and limitation of the battery capacity are eliminated, the utilization efficiency of the collected energy and the throughput of the system are enhanced, and the power supply pressure of the grid at the powerconsumption peak is alleviated.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to an energy distribution technology between a power grid and a communication node in energy collection wireless communication. Background technique [0002] Energy Harvesting Communication (Energy Harvesting Communication) technology is a green communication technology that uses renewable energy for information transmission. The battery can reasonably schedule the collected energy, thereby improving the transmission efficiency of information. This technology utilizes optimization technology to reasonably distribute harvested energy and achieve optimal transmission power, which can effectively overcome the limitation of energy causal constraints and the shortcomings of insufficient battery capacity, improve the utilization efficiency of harvested energy, and realize green communication. Compared with wireless communication systems using traditional energy, communicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/28H02J3/32
CPCH02J3/008H02J3/28H02J3/32H02J2203/20
Inventor 廖玉成肖悦孙兆杰
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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