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

Rotor position robust observation method used for flywheel energy storage system

A technology of rotor position and flywheel energy storage, which is applied in the direction of control system, vector control system, control electromechanical transmission device, etc., and can solve the problems affecting the power quality of power system, etc.

Active Publication Date: 2018-04-13
NANJING INST OF TECH
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, renewable energy itself is intermittent and random. If it is directly connected to the power system, it will seriously affect the power quality of the power 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
  • Rotor position robust observation method used for flywheel energy storage system
  • Rotor position robust observation method used for flywheel energy storage system
  • Rotor position robust observation method used for flywheel energy storage system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033]A rotor position robust observation method for a flywheel energy storage system, which introduces the feedback of the composite back electromotive force estimation value into the stator current observation to estimate the rotor position information, and is a rotor position robust observation method based on a multi-mode disturbance observer method; this method first establishes the compound back EMF model sliding mode observer, and then feeds back the compound back EMF estimated value of the current state equation in the two-phase stationary coordinates as the system disturbance, and uses the multi-mode disturbance observer based on the virtual parameter identification method to analyze the rotor At the same time, in order to improve the control accuracy of the system, a multi-mode disturbance observer based on virtual parameter identification method is used to fu...

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 a rotor position robust observation method used for a flywheel energy storage system. The rotor position robust observation method comprises the steps of establishing a composite counter electromotive force model sliding-mode observer firstly, and next, by taking composite counter electromotive force estimation value feedback of a current state equation in a two-phase static coordinate as system disturbance, enabling a virtual parameter identification method-based multimode disturbance observer to perform accurate evaluation on the rotor position information; meanwhile,performing fuzzy prediction on the positioning torque of an FSPM motor by the virtual parameter identification method-based multimode disturbance observer, and further improving the positioning torque prediction precision of the FSPM motor through an error online training compensator; and meanwhile, performing control by taking the positioning torque as known disturbance. By virtue of the rotor position robust observation method, the positioning torque prediction value of the FSPM motor can quickly and accurately follow a real value, so that wide-speed-range position-free accurate tracking ofthe FSPM motor used for the flywheel energy storage system in different working condition operating conditions can be realized.

Description

technical field [0001] The invention relates to a rotor position robust observation method for a flywheel energy storage system, which belongs to the FSPM motor control technology for the flywheel energy storage system. Background technique [0002] Energy is an important driving force for social progress and productivity development. With the rapid development of the global economy and the rapid growth of energy demand, traditional fossil energy consumption is huge and is going to be exhausted. Human beings are facing the severe test of energy crisis. In recent years, renewable energy technologies such as wind energy and solar power have developed rapidly, and renewable energy will occupy an extremely important position in the energy structure of the future power system. However, renewable energy itself is intermittent and random. If it is directly connected to the power system, it will seriously affect the power quality of the power system. Energy storage technology is on...

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
IPC IPC(8): H02P21/18
CPCH02P21/18H02P2207/00
Inventor 孟高军张亮孙玉坤刘海涛
Owner NANJING INST OF TECH
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