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

Difference optimization control method of directly-driven permanent magnet synchronous wind power generation system

A technology of wind power generation system and permanent magnet synchronization, which is applied in wind power generation, system integration technology, design optimization/simulation, etc., and can solve problems such as increasing the complexity and uncertainty of system optimization control

Active Publication Date: 2018-03-27
WENZHOU UNIVERSITY
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Back-to-back full power conversion control strategy Since both ends are PWM conversion systems, the control is more flexible, but it also increases the complexity and uncertainty of system optimization control

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
  • Difference optimization control method of directly-driven permanent magnet synchronous wind power generation system
  • Difference optimization control method of directly-driven permanent magnet synchronous wind power generation system
  • Difference optimization control method of directly-driven permanent magnet synchronous wind power generation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] The following representative examples specifically illustrate the content of the present invention, but these examples are not intended to limit the scope of the invention herein.

[0054] Such as figure 1 and 2 As shown, a differential optimization control method for a direct-drive permanent magnet synchronous wind power generation system, the system adopts a back-to-back full-power converter power control structure, in which the machine-side converter controls the generator speed and output power, and the grid-side converter The device stabilizes the DC bus voltage, and controls the active power and reactive power output by the power generation system; the method includes the following steps:

[0055] A differential optimization control method for a direct-drive permanent magnet synchronous wind power generation system, characterized in that the system adopts a back-to-back full-power converter power control structure, wherein the machine-side converter controls the ...

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 difference optimization control method of a directly-driven permanent magnet synchronous wind power generation system. The difference optimization control method of the directly-driven permanent magnet synchronous wind power generation system is characterized by utilizing an electric energy structure of a back-to-back full power variable flow, respectively establishing astate space model for a machine-side converter control system and a network-side converter control system, stacking the product of the absolute values of the tracking errors of the machine-side converter control system and the network-side converter control system in the directly-driven permanent magnet synchronous wind power generation system and the time and the weight of the total harmonic wavedistortion rate of the output voltage waveform of the system, and taking the stacking result as the fitness function of evaluating the control performance, designing a difference optimization controlmethod based on real number encoding, and realizing optimization of PI controller parameters in the directly-driven permanent magnet synchronous wind power generation system. The difference optimization control method of the directly-driven permanent magnet synchronous wind power generation system can effectively improve the working efficiency and the power generation quality of the directly-driven permanent magnet synchronous wind power generation system, and the energy conversion efficiency and operation reliability of the wind power generation set, and can guarantee that the directly-driven permanent magnet synchronous wind power generation system is shorter in the stable time, is smaller in the steady state error and is higher in the robustness when the power grid is disturbed.

Description

technical field [0001] The invention relates to intelligent control technology in the field of new energy power generation systems, in particular to a differential optimization control method for a direct-drive permanent magnet synchronous wind power generation system. Background technique [0002] Directly-driven Permanent Magnet Synchronous Generator (hereinafter referred to as D-PMSG) eliminates the need for complex mechanical transmission mechanisms, and reduces the loss of wind turbines and improves wind power by adopting full-power variable current power control. The energy conversion efficiency and operational reliability of the unit. The power control strategy of the full power converter has a very critical impact on the operating characteristics and power output quality of the D-PMSG. In the context of the rapid increase in the capacity of wind power connected to the grid, grid-connected direct-drive wind turbines must have strong fault resistance capabilities, and...

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): H02J3/38G06F17/50G06Q50/06
CPCG06Q50/06G06F30/20H02J3/386H02J2203/20Y02E10/76Y02E40/70Y04S10/50
Inventor 王环曾国强戴瑜兴吴烈李理敏
Owner WENZHOU UNIVERSITY
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