Bidirectional DC-AC conversion circuit for energy storage inverter
A technology of DC-AC and energy storage inverters, which is applied to output power conversion devices, conversion of AC power input to DC power output, and conversion of DC power input to DC power output. It can solve the problems of high cost, large volume, inefficiency etc.
Pending Publication Date: 2018-10-09
江苏耐思特新能源科技有限公司
View PDF0 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there are many problems in this solution. It is necessary to add an additional battery charging and discharging device on the basis of the photovoltaic grid-connected inverter, and use multiple devices to build a two-way energy storage system. This not only makes the cost of the entire device high and the volume Large, but also has the problem of complex control and low efficiency
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
[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, rather than all embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention .
[0017] figure 1 A schematic circuit structure diagram of a bidirectional DC-AC conversion circuit for an energy storage inverter provided in Embodiment 1 of the present invention, as shown in figure 1 As shown, the bidirectional DC-AC conversion circuit for the energy storage inverter includes: DC input and output module 101, primary side ...
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 belongs to the technical field of bidirectional energy storage inverters and particularly relates to a bidirectional DC-AC conversion circuit for an energy storage inverter. A technicalproblem of providing the bidirectional DC-AC conversion circuit with a simple structure, high efficiency and the ability to achieve the purpose of the self-use of self-generated photovoltaic power forthe energy storage inverter is solved. The technical scheme is that the bidirectional DC-AC conversion circuit for energy storage inverter comprises a direct current input and output module, a primary side bridge circuit, a transformer module, a secondary side bridge circuit, a bidirectional buck-boost module, an inverter bridge circuit, an inverter inductance freewheeling circuit, an LLC filtercircuit and an AC input and output module. The bidirectional DC-AC conversion circuit is applicable to the field of power electronics.
Description
technical field [0001] The invention belongs to the technical field of bidirectional energy storage inverters, and in particular relates to a bidirectional DC-AC conversion circuit for energy storage inverters. Background technique [0002] Ordinary photovoltaic grid-connected inverters usually centralize grid-connected power generation during the day and have no energy supply at night, so they cannot play the role of peak-shaving and flat-valley regulation of the grid and self-consumption. In recent years, with the gradual increase of photovoltaic power generation systems, its proportion in the power grid system is getting higher and higher, so there is an urgent need for a bidirectional energy storage inverter to regulate the power grid during peak shaving and flat valleys, and photovoltaic power generation for self-use the goal of. [0003] In the prior art, generally a battery charging and discharging device is connected in parallel to the grid end of the photovoltaic g...
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): H02M7/797H02M3/335
CPCH02M3/3353H02M7/797H02M1/007Y02E10/56
Inventor 黄建亮郑俊涛冯高杰苏岩罗霆
Owner 江苏耐思特新能源科技有限公司