Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Capacity configuration method of wind-storage combined system

A technology of wind-storage integration and system capacity, applied in wind power generation, energy storage, circuit devices, etc., can solve problems such as system reliability and stability impact

Inactive Publication Date: 2017-03-08
SHENYANG POLYTECHNIC UNIV
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The operation of large-scale wind power generation system has a serious impact on the reliability and stability of the system

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
  • Capacity configuration method of wind-storage combined system
  • Capacity configuration method of wind-storage combined system
  • Capacity configuration method of wind-storage combined system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The wind farm consists of 10 double-fed wind turbines with a stand-alone capacity of 1.5MW, the grid-connected frequency is 50Hz, the bus voltage on the AC side is 690V, and the adjacent sampling points are 1min apart. The output power curve of wind power is as figure 1 shown.

[0054] The wind power output power (P DFIG ) k and wind power grid-connected power (P grid ) k|k The amount of tuning iterations extracted as a Kalman power decomposition. The maximum change limit of wind power grid-connected power is 3MW. According to the iterative relationship in formulas (1) and (2), the wind power grid-connected power part is divided as figure 2 As shown, the energy storage device stabilizes the power part as image 3 shown.

[0055] The spectrum analysis of the stabilized power part of the energy storage device is carried out by fast Fourier transform. Its analysis diagram is as follows Figure 4 shown. Set the demarcation cutoff frequency f c =0.01Hz, establish...

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 relates to a capacity configuration method of a wind-storage combined system. A wind-electricity output power is processed by Kalman power decomposition to extract a wind-electricity grid-connected power part and an energy storage device suppressing power part. According to the operation complementary characteristic of a storage battery and a super capacitor, a low-frequency region and a high-frequency region of the energy storage device suppressing power part are suppressed, thereby carrying out configuration of the energy storage capacity of the wind-storage combined system.

Description

Technical field: [0001] The invention belongs to the technical field of wind power hybrid energy storage, and in particular relates to a capacity configuration method of a combined wind power storage system. Background technique: [0002] The grid operation of large-scale wind power generation system has a serious impact on the reliability and stability of the system. The energy storage system stabilizes wind power fluctuations in a flexible and effective manner through the rapid charging and discharging of the power of the energy storage unit, reduces its disturbance impact on the power system, and improves the power quality of wind power grid-connected. The economy of the wind-storage combined system is mainly reflected in the capacity configuration, and the reasonable configuration of the capacity of the wind-storage combined system can improve the system stability. Invention content: [0003] Purpose of the invention: [0004] The invention provides a method for conf...

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 Applications(China)
IPC IPC(8): H02J3/38H02J3/32H02J3/24
CPCH02J3/24H02J3/32H02J3/386Y02E10/76Y02E70/30
Inventor 卢芸黄山
Owner SHENYANG POLYTECHNIC UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com