A method for improving clean energy consumption based on multi-energy storage system

An energy storage system and clean energy technology, applied in the field of power grids, can solve the problems of increasing operating costs, increasing costs, increasing battery energy storage investment, etc., to achieve the effect of improving consumption capacity, ensuring stability, and increasing consumption

Active Publication Date: 2022-05-03
STATE GRID LIAONING ECONOMIC TECHN INST +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional single battery energy storage system, in order to ensure the supply and demand of the system, it is necessary to increase the input of battery energy storage, which increases the cost; and in the case of a large heat load, the electric energy in the battery energy storage is converted into heat , reducing energy conversion efficiency and increasing operating costs

Method used

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  • A method for improving clean energy consumption based on multi-energy storage system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Step 1: Collect information at the current moment: ambient temperature t at the current moment, installed capacity of fans in the system at the current moment P 1 , PV installed capacity P at the current moment 2 , the capacity of the heat storage device in the grid is Q r , the capacity of the power storage device in the grid is Q d , the wind farm output P at the current moment w , the photovoltaic power plant output P at the current moment g , the grid load at the current moment is P f , the installed capacity of the traditional generator set in the system is P c ;

[0016] Monitor the current weather in a certain day, set the ambient temperature t = 20°C, and the installed capacity of the fan in the system P 1 =40MW, photovoltaic installed capacity P 2 = 30MW. The capacity of the heat storage device in the grid is Q r = 10MW.h, the capacity of the power storage device in the grid is Q d = 8MW.h, the current output of the wind farm P w =30MW, the current o...

Embodiment 2

[0023] Step 1. Collect information at the current moment: monitor the current weather in a certain day, set the ambient temperature t = 25°C, and the installed capacity of the fans in the system P 1 =50MW, photovoltaic installed capacity P 2 = 40MW. The capacity of the heat storage device in the grid is Q r = 10MW.h, the capacity of the power storage device in the grid is Q d = 10MW.h, the current output of the wind farm P w =45MW, the current output of photovoltaic power station P g =40MW, the current load of the power grid is P f = 140MW, the installed capacity of the traditional generator set in the system is P c =100MW, after collecting the above information, carry out the following calculation

[0024] Step 2: According to the information collected at the current moment, calculate the output fluctuations of photovoltaic power plants and wind farms, record P d =P w +P g , let the output of wind farm and photovoltaic power station one minute ago be P d1 =83MW, the...

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Abstract

The present invention proposes a method for improving clean energy consumption based on a multi-energy storage system, including: collecting information at the current moment; calculating output fluctuations of photovoltaic power plants and wind farms; In specific circumstances, it is decided to invest in heat storage or power storage batteries; the present invention proposes that when the output of wind farms and photovoltaic power stations is greater than the load, corresponding energy storage and power storage equipment can be put in to absorb the electric energy, which solves the current problem The problem of power balance is to ensure the full consumption of clean energy. When the output of wind farms and photovoltaic power plants is insufficient, the battery and heat storage equipment will be output with a certain power to ensure the demand for electricity and heat supply. The invention can increase the consumption of clean energy and ensure the stability of the power system, and the application of a multi-energy energy storage system combining power storage and energy storage can improve the consumption capacity of clean energy.

Description

technical field [0001] The invention belongs to the technical field of power grids, and in particular relates to a method for improving clean energy consumption based on a multi-energy energy storage system. Background technique [0002] With the continuous integration of a large amount of clean energy into the grid, due to the uncertainty of clean energy output, it is impossible to guarantee that clean energy output and load will remain in a state of relative supply and demand balance. When the load is high, the insufficient output of clean energy will cause insufficient power supply, which will affect the stability of the power grid. When the load is low, when the output of clean energy is high, resources will be wasted. As for how to balance the requirements of the supply and demand side, it is necessary to rationally optimize the energy storage system in the grid so that clean energy can be completely consumed and the load requirements can be met. In order to ensure the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/32
CPCY02E70/30Y02E10/56Y02E10/76
Inventor 穆永强王春生康广有王征姜涛李剑峰窦文雷艾芳馨于海洋高靖张明理
Owner STATE GRID LIAONING ECONOMIC TECHN INST
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