Scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and system

A technology for optimizing control and control methods, which is applied in wind power generation, reactive power compensation, reactive power adjustment/elimination/compensation, etc., and can solve problems such as not taking into account the loss of wind turbines themselves

Active Publication Date: 2013-06-12
SHENYANG POLYTECHNIC UNIV
View PDF5 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, these strategies obtain the reactive power requirements of the entire wind farm by distributing them to each wind turbine according to equal power factors or equal proportions as their reactive power control target reference value. This distribution method does

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
  • Scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and system
  • Scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and system
  • Scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and system

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0132] The distributed wind farm reactive power controller adopts Siemens PLC as the hardware system, such as Image 6 shown. Its configuration is as follows: CPU adopts S7-400 series, PS is power supply module, MC is memory card module, SM is signal module, CP is communication processor, FM is function module. The CANopen gateway adopts NT50-CO-EN, the detection module adopts Siemens multifunctional power acquisition module PAC4200, and the router adopts SCALANCEXB005.

[0133] The FM module has a closed-loop control function to realize the closed-loop control of the reactive power setting layer of the wind farm.

[0134] The CP module communicates with the SCADA of each fan through the router SCALANCE XB005. The communication adopts optical fiber Ethernet, and the computer can be connected to the CP to program and maintain the controller.

[0135] The SM module communicates with the multifunctional power acquisition module PAC4200 through the CANopen gateway NT50-CO-EN, an...

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 scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and a system, and belongs to the technical field of wind power plant grid-connected operation reactive voltage control. The system comprises a processor, a storage module, an input and output module, a control area network (CAN)open gateway, a detection module and a router. The processor carries out control algorithm and calls the storage module and the input and output module. The input and output module is communicated with the detection module through the CANopen gateway and is communicated with a supervisory control and data acquisition (SCADA) of each fan through the route. Based on the principle that reactive power losses of all wind turbine generators are smallest, the system allocates reactive power output of each wind turbine generator, on the premise that voltage of a control point is stable, power generation efficiency of the system is improved, the fact that reactive power which each wind turbine generator outputs or absorbs is within a permissible range of the corresponding wind turbine generator is guaranteed, and safe operation of the system is guaranteed.

Description

technical field [0001] The invention relates to a distributed wind farm reactive power optimization control method and system for reducing fan loss, and belongs to the technical field of reactive power and voltage control for wind farm grid-connected operation. Background technique [0002] With the rapid development of wind power technology and the country's high attention to renewable energy power generation, my country's wind power construction has entered a period of rapid development. As a power source, wind power is random and intermittent. As more and larger capacity wind farms are put into operation, technical problems such as wind power grid integration are becoming more and more prominent. For example: the network loss is large; when any point in the power grid fails, its disturbance will have an impact on the entire power grid, and in severe cases may cause large-scale power outages or even grid collapse; the centralized large power grid has poor adaptability to l...

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): H02J3/38H02J3/18
CPCY02E10/76Y02E40/30
Inventor 邢作霞张保华井艳军姜立兵
Owner SHENYANG POLYTECHNIC UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap