Multifunctional energy storage system for energy storage market and control method
An energy storage system and multi-functional technology, applied in the field of energy storage, can solve problems such as time and terrain influence, and achieve the effects of simple control, rich application occasions, and high device utilization
Active Publication Date: 2018-08-21
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
Both wind power and photovoltaic power generation have certain limitations, which are greatly affected by time and terrain
Method used
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[0034] Such as figure 1 As shown, a multifunctional energy storage system for the energy storage market, including battery pack unit B, supercapacitor pack unit C, first group of switching tube units X, second group of switching tube units Y, DC / DC converter and Bidirectional DC / DC converter;
[0035] The battery pack unit B includes a first battery B 1 and the second battery B 2 ; the first battery B 1 and the second battery B 2 Both are lithium-ion batteries of equal capacity.
[0036] The supercapacitor bank unit C includes a first supercapacitor UC 1 , the second supercapacitor UC 2 and the first switch S a ;
[0037] The first group of switch tube units X includes a first switch tube S b11 , the second switch tube S b12 , the third switch tube S b21 , the fourth switch tube S b22 , the fifth switch tube S b31 and the sixth switch tube S b32 , both driven by the same drive signal G X drive.
[0038] The second group of switch tube units Y includes a seventh...
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The invention discloses a multifunctional energy storage system for an energy storage market and a control method. The system comprises a battery pack unit, a super capacitor pack unit, a first groupof switching tube unit, a second group of the switching tube unit, a DC / DC converter and a bidirectional DC / DC converter; the battery pack unit comprises a first battery and a second battery; the super capacitor pack unit comprises a first super capacitor, a second super capacitor and a first switch; the first group of the switching tube unit comprises a first switching tube, a second switching tube, a third switching tube, a fourth switching tube, a fifth switching tube and a sixth switching tube which are driven by the same driving signal, and the second group of the switching tube unit comprises a seventh switching tube, an eighth switching tube, a ninth switching tube and a tenth switching tube which are driven by another same driving signal; the hybrid energy storage system can be applied to the energy storage systems of a wind power generation plant, a photovoltaic power generation plate, an electric vehicle and the like.
Description
technical field [0001] The invention relates to the field of energy storage, in particular to a multifunctional energy storage system and a control method for the energy storage market. Background technique [0002] The improvement of human awareness of environmental protection and the concern about the energy crisis have prompted the development and use of renewable energy such as wind power and photovoltaic power generation. Both wind power and photovoltaic power generation have certain limitations, and are greatly affected by time and terrain. When the wind is weak, there will be insufficient wind power generation or photovoltaic power generation cannot be performed at night, so wind power and photovoltaic power generation need a supporting energy storage system to cut peaks and fill valleys. However, wind power and photovoltaic power generation still have fluctuations. When the power generation voltage peaks, directly using lithium batteries to absorb energy will affect...
Claims
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IPC IPC(8): H02J15/00H02J7/00H02J7/34
CPCH02J7/0026H02J7/0016H02J7/0019H02J7/345H02J15/00Y02E70/30
Inventor 刘俊峰许敏曾君
Owner SOUTH CHINA UNIV OF TECH