External battery pack type electricity-supplement balancing system and method of energy storage system
A technology of energy storage system and balance system, applied in battery circuit devices, energy-saving charging equipment, current collectors, etc., can solve the problems of reducing charging and discharging efficiency, effectively storing energy waste, increasing thermal management burden, etc. Discharge efficiency, effective dynamic equalization effect
Active Publication Date: 2011-11-02
国科储能技术(北京)有限公司
View PDF3 Cites 12 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 an external battery pack type power supply equalization system and equalization method for an energy storage system, aiming to solve the existing dissipative resistance equalization The method will generate a lot of heat during the equalization process, which reduces the charge and discharge efficiency and causes a huge waste of effective energy storage; at the same time, the large amount of heat generated also increases the burden of thermal management, and the system circuit is complex and the equalization speed is slow.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0020] The invention provides an externally connected storage battery pack-type balancing system and a balancing method thereof for an energy storage system. The balancing system adopting the externally connected storage battery pack-type charging equalization method includes two sets of charging modules and a set of charging battery packs. By adding a set of small charging modules and battery packs used as supplementary power, the large energy storage system can be supplemented and balanced. The principle is as follows: figure 1 shown.
[0021] see figure 1 , the externally connected battery pack-type power supply equalization system includes a power generation device, a power combining system, a DC bus, a first charging module, a firs...
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
Login to View More Abstract
The invention discloses an external battery pack type electricity-supplement balancing system and method of an energy storage system. The balancing system comprises a generating device, an electrical energy combining system, a direct-current busbar, a first charging module, a first storage battery pack, a second charging module, a second storage battery pack, a DC / DC converter, a relay and a balancing bus. The generating device is connected to the electrical energy combining system, and the electrical energy combining system is connected with the direct-current busbar; the first charging module and the second charging module are connected to the direct-current busbar, the first charging module is connected to the first storage battery pack, the second charging module is connected to the second storage battery pack, the first storage battery pack is connected with the DC / DC converter and the relay in sequence, the relay is connected to the second storage battery pack via the balancing bus, and the first storage battery pack is used for balancing the electricity supplement of the second storage battery pack via the balancing bus. The external battery pack type electricity-supplementbalancing system and method of the energy storage system are capable of realizing effective dynamic balance and increasing the charging-discharging efficiency.
Description
technical field [0001] The invention relates to the field of new energy power generation, in particular to an external battery pack type power supply equalization system and equalization method for an energy storage system. Background technique [0002] New energy power generation systems such as wind energy, solar energy, and wave energy all have the characteristics of volatility and instability. The use of large-scale energy storage technology can make the output power of unstable new energy power smoothly adjustable, change unstable power input into continuous, safe and reliable power output, improve the safety and reliability of the power grid, and increase the power of new energy power. The utilization rate of electricity can reduce the impact of fluctuating electric energy on the power grid, thereby solving the problem of grid-connected new energy power. For independent off-grid new energy power generation in islands and remote areas, at the same time due to the insta...
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
Login to View More IPC IPC(8): H02J7/00
CPCY02E70/40Y02B40/90Y02E60/10
Inventor 冯自平陈永珍宋文吉吕杰韩颖
Owner 国科储能技术(北京)有限公司