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Wind-photovoltaic complementary power generation device with hybrid energy storage system

A hybrid energy storage system, wind and solar power generation technology, applied in photovoltaic power generation, photovoltaic power stations, photovoltaic modules and other directions, can solve the problems of high cost and large capacity realization, limit large-scale application, etc., to improve service life, improve economic efficiency and Practical benefits, smooth output power

Inactive Publication Date: 2015-10-14
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

However, the high cost and large-capacity implementation limit its large-scale application

Method used

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  • Wind-photovoltaic complementary power generation device with hybrid energy storage system
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  • Wind-photovoltaic complementary power generation device with hybrid energy storage system

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Embodiment Construction

[0016] The following will further describe the patent of the present invention in detail with reference to the drawings and specific implementation process:

[0017] See figure 1 , Using wind power generation system and photovoltaic power generation system to form a wind and solar complementary system, using the complementarity of the two power generation systems in time and space, the wind power generation system connects the load and the energy storage system through a transformer, and photovoltaic power generation through a DC / AC converter , And then connected to the load and energy storage system through the inverter. When the output power of the wind and solar hybrid power generation system is greater than the power required by the load, the remaining power is input into the new hybrid energy storage system through the bidirectional converter, and the remaining power is stored in the energy storage system; similarly when the output power of the wind and solar hybrid power gen...

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Abstract

Output power of wind power generation and photovoltaic power generation has volatility and randomness, the grid-connection technical requirements are high, the cost is high and the utilization rate is relatively low. According to the research, wind power generation and photovoltaic power generation both have certain complimentarity on time and space, so that development of a complementary hybrid wind / photovoltaic power generation system (HPW) becomes more and more important; the complementary hybrid wind / photovoltaic power generation system shares an energy storage device and a universal inverter, so that the use cost of a power generation system is reduced. A novel hybrid energy storage system is disclosed by utilizing complementarity, in energy storage principle, of superconducting magnetic energy storage (SMES) and a storage battery(BESS), so that the energy storage system has advantages such as high power density, high energy density, a long service life and the like, meanwhile, a self-adaptive fuzzy control algorithm is adopted to further control the on and off of the hybrid energy storage system, thereby realizing fast stabilizing of output power fluctuation of the wind-photovoltaic complementary power generation system, reducing times of charging and discharging the storage battery, prolonging the service life and further improving the economic performance and technical performance of the whole system.

Description

Technical field [0001] The present invention studies the wind and solar hybrid power generation system based on the new hybrid energy storage system, which is beneficial to make full use of the complementarity of wind power and photovoltaic power generation in time and space, thereby maximizing the use of new energy power and improving economic benefits; using superconducting storage Energy and battery form a new hybrid energy storage system, which improves the power density, energy density and service life of the energy storage device, thereby increasing the utilization rate of the entire device. Background technique [0002] With the rapid economic development, energy issues have become the focus of world attention. The search for new and renewable clean energy has become an important strategy for the development of various countries; wind energy and solar energy, which have the advantages of universality, pollution-free, and renewable, have been Become the most potential devel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S10/12H02S10/20
CPCH02S10/00Y02E10/50Y02E70/30
Inventor 夏向阳张贵涛其他发明人请求不公开姓名
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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