Unlock instant, AI-driven research and patent intelligence for your innovation.

A configuration method for energy storage station capacity and charging and discharging power adapting to peak shaving and valley filling

A technology of charging and discharging power, shaving peaks and filling valleys, applied in circuit devices, AC network circuits, AC network load balancing and other directions, can solve problems such as the blank of constant capacity work, increase rationality, avoid waste of resources, and simple calculation methods Effect

Active Publication Date: 2018-11-30
STATE GRID CORP OF CHINA +2
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Based on the above analysis and published existing technical information, the configuration of energy storage is mainly concentrated in small micro-grids, or configuration methods for other configuration objectives, while in large-scale distribution networks, energy storage stations operate The pre-construction capacity determination work is still blank

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A configuration method for energy storage station capacity and charging and discharging power adapting to peak shaving and valley filling
  • A configuration method for energy storage station capacity and charging and discharging power adapting to peak shaving and valley filling
  • A configuration method for energy storage station capacity and charging and discharging power adapting to peak shaving and valley filling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for configuring the capacity and charging and discharging power of an energy storage station adapted to peak shaving and valley filling, the method comprising the following steps:

[0030] a. Obtain the 24-hour typical load characteristic curve of the area to be built of the energy storage station through the power operation department;

[0031] b. Determine the charge and discharge state quantity of the energy storage station as S charge , S charge =1 means the energy storage station is in charging state, S charge =0 means that the energy storage station is in the state of floating charge, S charge =-1 means that the energy storage station is in a discharge state, which can be described by the following mathematical formula:

[0032]

[0033] In the formula, P load is the load power, P av is the average load power, S oc is the state of charge of the load, S oc·min and S oc·max Respectively refer to the maximum and minimum state of charge of the ener...

Embodiment 2

[0043] A method for configuring the capacity and charging and discharging power of an energy storage station adapted to peak shaving and valley filling, the method comprising the following steps:

[0044] Step 1: Obtain the load characteristic data of the area to be built of the energy storage station. Through the local power department, the typical load characteristic curve of the 24-point system is obtained as follows: figure 1 shown.

[0045]Step 2: Determine the charging and discharging status of the energy storage station to be built. According to the 24-hour load characteristics of the area in step 1, the 24-hour load average power is calculated in units of hours, which is recorded as P av , it is easy to obtain P av =106.08kW, the data has been marked in figure 1 middle.

[0046] In order to achieve the purpose of peak shifting and valley filling of the energy storage station, the charging and discharging time of the energy storage station is defined as: when the l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an energy storage station capacity and charge-discharge power configuring method adaptive to peak clipping and valley filling and relates to the field of intelligent distribution network planning. The method is applicable particularly before investment and construction of an energy storage station during distribution network planning to determine the capacity and charge-discharge power of the energy storage station. A typical load characteristic curve of an area to construct an energy storage station is acquired through the power department, charge-discharge state of the energy storage station at each moment is determined according to its average load powder, and charge-discharge power that the energy storage station should have currently is acquired by calculating according to charge-discharge capacity balance rules. By using the method, it is possible to calculate reasonable capacity and charge-discharge power of the energy storage station before investment and construction of the energy storage station, the subjective factor, artificial intervention, in the planning and construction process is avoided, the configuring method of the invention provide certain peak clipping and valley filling effect after the investment and construction of the distribution network energy storage station.

Description

technical field [0001] The invention relates to the field of intelligent distribution network planning, in particular to a method for configuring the capacity of an energy storage station and the charging and discharging power, and is specifically applicable to the capacity and charging and discharging power of the energy storage station in distribution network planning before the energy storage station is invested and constructed. Sure. technical background [0002] In the distribution network, the energy storage station (battery energy storage system) has the characteristics of peak shaving and valley filling, and flexible installation location. For grid operators, peak-shaving and valley-filling can improve equipment utilization and save equipment update costs; for users, there will be a lower peak-valley power price difference. Because of the above advantages, the promotion of energy storage stations in the power grid is gradually carried out. In foreign countries, aft...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/32
CPCH02J3/32H02J2203/20
Inventor 贺继锋杜治黄家祺周玉洁方仍存熊炜罗纯坚杨军刘源
Owner STATE GRID CORP OF CHINA