Low-voltage distribution intelligent terminal system with energy storage function

Abstract

The invention provides a low-voltage power distribution intelligent terminal system with an energy storage function, relates to the technical field of power distribution, and solves the problems that an existing low-voltage power distribution terminal is relatively single in function, lacks an energy storage function, and cannot fully utilize the price difference of peak and valley of a power grid and serve as a peak regulation power supply. The system comprises a low-voltage box, a transformer and an energy storage box, the low-voltage box, the transformer and the energy storage box are arranged in a delta shape, a low-voltage electric appliance is arranged in the low-voltage box, an energy storage converter, an energy management module, a battery management module and a battery pack are arranged in the energy storage box, and heat dissipation systems are arranged in the low-voltage box and the energy storage box. The method has the advantages that the peak-valley price difference of the power grid can be utilized, the load of an enterprise is reduced, meanwhile, a peak-shaving power supply of the power grid is used, the power demand at the peak of power utilization is guaranteed, and the load rate of the power grid is increased; the power supply can be used as an emergency power supply to improve the power utilization quality; the structure is compact, connection is convenient, and maximum utilization of resources can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power distribution, and in particular to a low-voltage power distribution intelligent terminal system with energy storage. Background Art

[0002] The existing intelligent low-voltage power distribution terminal with publication (announcement) number: CN204361790U, publication (announcement) date: 2015-05-27, can collect load voltage, current, power and leakage current in real time, and can realize remote communication; the existing medium and low voltage power distribution intelligent terminal with publication (announcement) number: CN103956828B, publication (announcement) date: 2016-01-20, integrates the functions of power transformation and distribution management, energy management, etc., and three-dimensionally decomposes the structure of the distribution equipment, and digitizes the database of components and schematic diagrams of the distribution equipment; these low-voltage power distribution intelligent terminals have relatively simple functions, lack energy storage functions, and cannot fully utilize the price difference between peaks and valleys of the power grid and serve as peak-shaving power sources. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the existing low-voltage power distribution terminal has relatively single functions, lacks energy storage function, and cannot fully utilize the price difference between peak and valley of the power grid and serve as a peak-shaving power source.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A low-voltage power distribution intelligent terminal system with energy storage, characterized in that it includes a low-voltage box, a transformer and an energy storage box, the low-voltage box, the transformer and the energy storage box are arranged in a triangular shape, the low-voltage box and the transformer are arranged in a straight line, the low-voltage box is provided with a low-voltage electrical appliance, the energy storage box is provided with an energy storage inverter, an energy management module, a battery management module, and a battery pack, the low-voltage electrical appliance is electrically connected to the transformer and the energy storage inverter, the energy storage inverter is electrically connected to the energy management module, the battery management module and the battery pack, the battery management module is electrically connected to the battery pack, the energy management module is electrically connected to the battery management module, and a heat dissipation system is provided in the low-voltage box and the energy storage box.

[0006] A further improvement is that the heat dissipation system includes a fan, a temperature sensor and a temperature controller arranged in the low-voltage box and the energy storage box.

[0007] A further improvement is that a column is vertically installed in the middle of the base, a support plate is installed on the upper end of the column, and the transformer is installed on the support plate.

[0008] A further improvement is that the low-voltage box and the energy storage box are symmetrically arranged on the bases on the front and rear sides of the column, and the transformer is located above the low-voltage box and the energy storage box.

[0009] A further improvement is that a first cable channel and a second cable channel are symmetrically arranged on the bases on the left and right sides of the column.

[0010] A further improvement is that a transformer terminal protection cover is disposed above the first cable channel and the second cable channel. The first cable channel and the second cable channel are used to protect the cables therein.

[0011] A further improvement is that a plurality of ventilation holes are provided on the left and right side walls of the low-voltage box and the energy storage box, and dustproof grilles are provided on the ventilation holes.

[0012] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0013] The addition of energy storage boxes can reduce the burden on enterprises by utilizing the peak-valley price difference while serving as a peak-shaving power source for the power grid, ensuring the power demand during peak hours and increasing the load rate of the power grid;

[0014] The reserve power of the energy storage box can be used as an emergency power supply to improve the quality of electricity use;

[0015] The low-voltage box, transformer and energy storage box are arranged in a triangular shape, with simple structure, convenient operation, low cost, compact structure and easy connection, which can maximize the utilization of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 The present invention Figure 1 A schematic diagram of the front structure of

[0019] Figure 3 The present invention Figure 1 A schematic diagram of the side structure of

[0020] Figure 4 The present invention Figure 1 A schematic diagram of a top view structure;

[0021] Figure 5 It is a structural schematic diagram of the base, the first cable channel and the second cable channel in the present invention;

[0022] Figure 6It is a schematic block diagram of the system principle structure of the present invention.

[0023] Explanation of the accompanying drawings: base 1, low-voltage box 2, low-voltage electrical appliance 21, transformer 3, energy storage box 4, energy storage inverter 41, energy management module 42, battery management module 43, battery pack 44, first cable channel 5, second cable channel 6, transformer terminal protection cover 7, column 8, support plate 9, heat dissipation system 10. DETAILED DESCRIPTION

[0024] See also Figure 1-Figure 6 As shown, the technical solution adopted in this specific embodiment is: a low-voltage power distribution intelligent terminal system with energy storage, including a low-voltage box 2, a transformer 3 and an energy storage box 4, the low-voltage box 2, the transformer 3 and the energy storage box 4 are arranged in a triangular shape, the low-voltage box 2 and the transformer 3 are arranged in a straight line, a low-voltage electrical appliance 21 is arranged in the low-voltage box 2, an energy storage inverter 41, an energy management module 42, a battery management module 43, and a battery pack 44 are arranged in the energy storage box 4, the low-voltage electrical appliance 21 is electrically connected to the transformer 31 and the energy storage inverter 41, the energy storage inverter 41 is electrically connected to the energy management module 42, the battery management module 43 and the battery pack 44, the battery management module 43 is electrically connected to the battery pack 44, the energy management module 42 is electrically connected to the battery management module 43, and a heat dissipation system 10 is arranged in the low-voltage box 2 and the energy storage box 4.

[0025] The heat dissipation system 10 includes a fan, a temperature sensor and a temperature controller which are arranged in the low-voltage box 2 and the energy storage box 4 .

[0026] A column 5 is vertically installed in the middle of the base 1 , a support plate 9 is installed on the upper end of the column 5 , and the transformer 3 is installed on the support plate 9 .

[0027] The low-voltage box 2 and the energy storage box 4 are symmetrically arranged on the base 1 on the front and rear sides of the column 5, and the transformer 3 is located above the low-voltage box 2 and the energy storage box 4.

[0028] Wherein, a first cable channel 5 and a second cable channel 6 are symmetrically arranged on the base 1 on the left and right sides of the column 5 .

[0029] A transformer terminal protection cover 7 is disposed above the first cable channel 5 and the second cable channel 6. The first cable channel 5 and the second cable channel 6 are used to protect the cables therein.

[0030] Among them, a plurality of ventilation holes are arranged on the left and right walls of the low-voltage box 2 and the energy storage box 4, and dustproof grilles are arranged on the ventilation holes.

[0031] Working principle of the present invention:

[0032] The energy management module detects the low power consumption of the distribution network at night and turns on the energy storage mode. Under the control of the battery management module, part of the low-voltage AC power in the low-voltage box is converted into DC power through the energy storage converter and stored in the battery pack.

[0033] The energy management module automatically turns on the discharge mode when it detects a peak in power consumption in the distribution network during the day. Under the control of the battery management module, the electric energy stored in the battery pack is converted into AC power through the energy storage converter and transmitted to the user end through the low-voltage box.

[0034] When the energy management module detects that the low-voltage box is continuously outputting electricity, it automatically turns on the energy storage mode. Under the control of the battery management module, part of the low-voltage AC power of the low-voltage box is converted into DC power through the energy storage converter and stored in the battery pack.

[0035] When the energy management module detects that the low-voltage box loses output power, it automatically turns on the discharge mode. Under the control of the battery management module, the electric energy stored in the battery pack is converted into AC power through the energy storage converter and transmitted to the user end through the low-voltage box;

[0036] The low-voltage box, transformer and energy storage box are arranged in a triangular shape, with simple structure, convenient operation, low cost, compact structure and easy connection, which can maximize the utilization of resources.

[0037] The above shows and describes the basic principles and main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents. Anything not described in detail in the present invention is a well-known technology of those skilled in the art.

Claims

1. A low-voltage power distribution intelligent terminal system with energy storage, characterized in that: It includes a low-voltage box, a transformer and an energy storage box, which are arranged in a triangular shape, and the low-voltage box and the transformer are arranged in a straight line. The low-voltage box is provided with low-voltage electrical appliances, and the energy storage box is provided with an energy storage inverter, an energy management module, a battery management module and a battery pack. The low-voltage electrical appliances are electrically connected to the transformer and the energy storage inverter, the energy storage inverter is electrically connected to the energy management module, the battery management module and the battery pack, the battery management module is electrically connected to the battery pack, and the energy management module is electrically connected to the battery management module. The low-voltage box and the energy storage box are provided with a heat dissipation system.

2. A low-voltage power distribution intelligent terminal system with energy storage according to claim 1, characterized in that: The heat dissipation system includes a fan, a temperature sensor and a temperature controller which are arranged in the low-voltage box and the energy storage box.

3. A low-voltage power distribution intelligent terminal system with energy storage according to claim 2, characterized in that: A column is vertically installed in the middle of the base, a support plate is installed on the upper end of the column, and the transformer is installed on the support plate.

4. A low-voltage power distribution intelligent terminal system with energy storage according to claim 3, characterized in that: The low-voltage box and the energy storage box are symmetrically arranged on the bases at the front and rear sides of the column, and the transformer is located above the low-voltage box and the energy storage box.

5. A low-voltage power distribution intelligent terminal system with energy storage according to claim 3, characterized in that: A first cable channel and a second cable channel are symmetrically arranged on the bases on the left and right sides of the column.

6. A low-voltage power distribution intelligent terminal system with energy storage according to claim 5, characterized in that: A transformer terminal protection cover is disposed above the first cable channel and the second cable channel.

7. A low-voltage power distribution intelligent terminal system with energy storage according to claim 1, characterized in that: A plurality of ventilation holes are arranged on the left and right side walls of the low-voltage box and the energy storage box, and dustproof grilles are arranged on the ventilation holes.

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