Single-phase input energy storage micro-grid device

Abstract

The utility model discloses a single-phase input energy storage micro-grid device, which comprises a shell, wherein a cavity is arranged in the shell; the distribution box is an input and output AC interface. One end of the rectifier module is connected with the distribution box; the input end of the inverter is connected with the other end of the rectifier module, and the output end of the inverter is three-phase load output; the power distribution control unit is respectively connected with the rectifier module and the inverter and is used for controlling the input power of the rectifier module; the output end of the battery pack is connected with the input end of the inverter; the photovoltaic panel is arranged above the shell, and the output end of the photovoltaic panel is connected with the input end of the inverter. The energy storage micro-grid device provided by the utility model can realize conversion between single-phase power and three-phase power, and is suitable for a remote independent micro-grid.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of energy storage equipment, especially to the field of single-phase input energy storage microgrid device technology. BACKGROUND

[0002] In the existing energy storage and power technology, in the remote rural areas in the northwest of China, the power grid has only single-phase power and the problem of low terminal voltage exists. However, the equipment, tools and the like used in the pasture need to be provided with three-phase voltage to work. In the prior art, the problem can only be solved by adding three-phase power grid lines or using a special transformer, the former is too expensive and is not suitable for economic selection in remote areas, and the latter will further lower the terminal voltage.

[0003] Therefore, in the prior art, there is an urgent need for a microgrid device providing three-phase power. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a microgrid device providing three-phase power.

[0005] To achieve the above-mentioned purpose, the utility model provides a single-phase input energy storage microgrid device, which comprises:

[0006] A shell, wherein a chamber is arranged in the shell;

[0007] A distribution box, wherein the distribution box is an input and output AC interface;

[0008] A rectifier module, wherein one end of the rectifier module is connected with the distribution box;

[0009] An inverter, wherein the input end of the inverter is connected with the other end of the rectifier module, and the output end of the inverter is a three-phase load output;

[0010] A power distribution control unit, wherein the power distribution control unit is connected with the rectifier module and the inverter respectively, and is used for controlling the input power of the rectifier module;

[0011] A battery pack, wherein the output end of the battery pack is connected with the input end of the inverter;

[0012] A photovoltaic panel, wherein the photovoltaic panel is arranged above the shell, and the output end of the photovoltaic panel is connected with the input end of the inverter.

[0013] Optionally, the lower surface of the photovoltaic panel is provided with an angle adjusting device, which is used for adjusting the inclination angle of the photovoltaic panel.

[0014] Optionally, the distribution box, the rectifier module, the inverter, the power distribution control unit and the battery pack are arranged in the chamber of the shell.

[0015] Optionally, the rectifier module, the power distribution control unit, the inverter, the battery pack and the distribution box are stacked from top to bottom.

[0016] Optionally, the photovoltaic panel is connected with the inverter through a maximum power point tracking solar controller.

[0017] Optionally, the rectifier module is composed of a plurality of parallel AC / DC.

[0018] Optionally, the rectifier module is modularly arranged and comprises a hot plug interface for expansion according to the configuration number of the battery pack in the battery pack.

[0019] Optionally, the power distribution control unit is provided with a sensor for detecting the power of each direct current module and controlling the input power of the rectifier module.

[0020] Optionally, the inverter is a grid-connected type.

[0021] Optionally, the cabinet door is arranged at the opening of the cavity in the shell.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] 1、The micro-grid device of the utility model is provided with a rectifier module, an inverter and a power distribution control unit, realizes the output of three-phase power, has low cost and does not have the problem of low terminal voltage.

[0024] 2、Meanwhile, the rectifier module can be expanded by hot plug according to the configuration number of the energy storage battery pack; the power distribution control unit detects the power of each direct current module through a sensor and controls the input power of the rectifier module.

[0025] 3、In addition, the photovoltaic panel is installed on the top of the shell, and when the shells are installed back to back, the photovoltaic panel can adjust the installation direction. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.

[0027] Figure 1 It is a schematic view of the energy storage micro-grid device of the utility model;

[0028] Figure 2 It is a structural schematic view of the energy storage micro-grid device of the utility model;

[0029] Figure 3This is a side view of the energy storage microgrid device of this utility model.

[0030] The reference numerals in the attached figures are as follows:

[0031] 103. Distribution box; 101. Rectifier module; 107. Inverter; 109. Power distribution control unit; 105. Battery pack; 102. Photovoltaic panel. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Figure 1 A schematic diagram of the energy storage microgrid device of this utility model is shown, as follows: Figure 1 As shown, a single-phase input energy storage microgrid device includes: a housing, a distribution box 103, a rectifier module 101, an inverter 107, a power distribution control unit 109, a battery pack 105, and a photovoltaic panel 102. The housing contains a chamber. The distribution box 103 is an input / output AC interface 104. One end of the rectifier module 101 is connected to the distribution box. The input end of the inverter is connected to the other end of the rectifier module 101, and its output end is a three-phase load output 106. The power distribution control unit 109 is connected to both the rectifier module 101 and the inverter 107, and is used to control the input power of the rectifier module. The output end of the battery pack 105 is connected to the input end of the inverter 107. The photovoltaic panel 102 is disposed above the housing, and its output end is connected to the input end of the inverter 107.

[0034] The distribution box 103, rectifier module 101, inverter 107, power distribution control unit 109, and battery pack 105 are all housed within the cavity of the casing. An angle adjustment device is provided on the lower surface of the photovoltaic panel 102 to adjust its tilt angle. This is particularly useful when energy storage microgrid devices are placed back-to-back, facilitating the adjustment of the photovoltaic panels to ensure they always face the sunlight, thus improving energy conversion efficiency. Figure 3 As shown.

[0035] Figure 2 A schematic diagram of an energy storage microgrid device is shown, such as... Figure 2As shown, the rectifier module 101, the power distribution control unit 109, the inverter 107, the battery pack 105 and the distribution box 103 are stacked from top to bottom.

[0036] Optionally, the photovoltaic panel 102 is connected with the inverter through a maximum power point tracking solar controller (MPPT). Figure 1 As shown, the rectifier module 101 is composed of multiple parallel AC / DCs. The inverter 1-7 is DC / AC. And the rectifier module 101 is modularly set, including a hot plug interface, for expansion according to the configuration number of the battery pack in the battery pack 105.

[0037] Optionally, the power distribution control unit 109 is provided with a sensor for detecting the power of each direct current module, controlling the input power of the rectifier module.

[0038] Optionally, the inverter 107 is a grid-connected type.

[0039] Optionally, the cabinet door is arranged at the opening of the cavity in the shell.

[0040] The micro-grid device of the utility model sets the rectifier module, the inverter and the power distribution control unit, realizes the output of three-phase electricity, has low cost and does not have the problem of low end voltage. Meanwhile, the rectifier module can be expanded by hot plug according to the configuration number of the energy storage battery pack, and the power distribution control unit detects the power of each direct current module through the sensor, controls the input power of the rectifier module. Moreover, the photovoltaic panel is installed on the top of the shell, and when the shells are installed back to back, the photovoltaic panel can be adjusted in the installation direction.

[0041] The above description of disclosed embodiments enables those skilled in the art to carry out or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A single-phase input energy storage microgrid device, characterized by, The utility model relates to a solar power generation system, including: A shell, a chamber is arranged in the shell; A distribution box, which is an input-output AC interface; A rectifier module, one end of the rectifier module is connected with the distribution box; An inverter, the input end of the inverter is connected with the other end of the rectifier module, and the output end is a three-phase load output; A power distribution control unit, the power distribution control unit is connected with the rectifier module and the inverter respectively, and is used for controlling the input power of the rectifier module; A battery pack, the output end of the battery pack is connected with the input end of the inverter; A photovoltaic panel, the photovoltaic panel is arranged above the shell, and the output end of the photovoltaic panel is connected with the input end of the inverter.

2. The single-phase input energy storage microgrid device of claim 1, wherein, The lower surface of the photovoltaic panel is provided with an angle adjusting device for adjusting the inclination angle of the photovoltaic panel.

3. The single-phase input energy storage microgrid device of claim 1, wherein, The distribution box, rectifier module, inverter, power distribution control unit and battery pack are all arranged in the chamber of the shell.

4. The single-phase input energy storage microgrid device of claim 3, wherein, The rectifier module, power distribution control unit, inverter, battery pack and distribution box are sequentially stacked from top to bottom.

5. The single-phase input energy storage microgrid device of claim 1, wherein, The photovoltaic panel is connected with the inverter through a maximum power point tracking solar controller.

6. The single-phase input energy storage microgrid device of claim 1, wherein, The rectifier module is composed of multiple parallel AC / DC.

7. The single-phase input energy storage microgrid device of claim 6, wherein, The rectifier module is modularly arranged and includes a hot plug interface for expansion according to the configuration number of battery packs in the battery pack.

8. The single-phase input energy storage microgrid device of claim 1, wherein, The power distribution control unit is provided with a sensor for detecting the power of each DC module and controlling the input power of the rectifier module.

9. The single-phase input energy storage microgrid device of claim 1, wherein, The inverter is a network type.

10. The single-phase input energy storage microgrid device of claim 1, wherein, The chamber opening in the shell is provided with a cabinet door.

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