Pumped storage power station and wind power plant combination system for power grid peak regulation and optimized scheduling method thereof

A pumped-storage power station and combined system technology, which is applied in the field of pumped-storage power station and wind power combined system and power dispatching, can solve problems such as the limitation of rotating reserve capacity and climbing ability, achieve smooth output, increase economic benefits, and reduce constraints The effect of the restriction

Inactive Publication Date: 2016-10-12
武汉弘文通信工程有限公司
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a combined system of pumped-storage power station and wind power for power grid peak regulation and a method for dispatching power, wh

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
  • Pumped storage power station and wind power plant combination system for power grid peak regulation and optimized scheduling method thereof
  • Pumped storage power station and wind power plant combination system for power grid peak regulation and optimized scheduling method thereof
  • Pumped storage power station and wind power plant combination system for power grid peak regulation and optimized scheduling method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] as attached figure 1 As shown, a combined system of pumped storage power station and wind power oriented to power grid peak regulation, which includes wind turbine 1, hydroelectric power generation system, water pump 3, and control system 4, and the hydropower generation system includes upstream reservoir 2, downstream reservoir 6, The water turbine unit and the generating unit 7; the wind generating unit 7 is connected to the control system 4 through the transmission line A through the controllable switch, and then connected to the main power grid 5 and the pump 3 through the transmission line C and the transmission line B respectively; The line D is connected to the control system 4 and then connected to the main grid through the transmission line C; the water pump 3 is connected to the main grid 5 through the transmission line E, in case the power of the wind farm for pumping water is insufficient, and the electric energy of the grid is used to pump water.

[0030] C...

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 pumped storage power station and wind power plant combination system for power grid peak regulation and an optimized scheduling method thereof. On the basis of the wind power plant output power predicted value and prediction accuracy, the part not exceeding the lower limit of the wind power plant power predicted value is directly connected into a regional power grid and serves as the base load part of the regional power grid; then, a net load curve with the power of directly-grid-connected wind power plants removed is drawn; unstable wind power plant power exceeding the lower limit value of the predicted value is used for pumped storage at the load valley period, power generation is carried out at the net load peak period, and the start-stop condition and output power value of a pumped storage power station at each period are accurately calculated. According to the scheme, threats of wind power plant grid connection to power grid stability are greatly reduced, the peak regulating and valley filling function of the pumped storage power station is fully exerted, and wind curtailment is reduced.

Description

technical field [0001] The invention belongs to the field of power system optimization operation, and specifically relates to a combined system of pumped storage power station and wind power oriented to power grid peak regulation and a power dispatching method. Background technique [0002] With the large-scale grid connection of wind power, the negative impact of wind power output uncertainty and anti-peaking characteristics on the power system has become increasingly prominent, and has become a bottleneck restricting the development of wind power. The pumped storage power station has the advantages of quick start, fast climbing speed, reliable and flexible operation. The flexibility of its rapid conversion can effectively compensate for the randomness of wind power output power; use the characteristics of "low storage and high power generation" of pumped storage power stations to solve the anti-peak regulation of wind power output power, and achieve the purpose of peak reg...

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): H02J3/38H02J3/28
CPCH02J3/28H02J3/381H02J3/386Y02E10/76Y02E70/30
Inventor 王凌云王凌峰吕文静季超超
Owner 武汉弘文通信工程有限公司
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