Extensible modular new energy power generation and storage and micro-inverter control method and device

Abstract

The invention relates to the technical field of micro-inverters, in particular to an extensible modular new energy power generation, micro-energy storage and micro-inverter control method and device.The extensible modular new energy power generation, micro-energy storage and micro-inverter control device comprises an Internet of Things communication module, a power generation module, a distributed energy storage module, a micro-inverter module, a monitoring module and a prompting module. Battery packs and micro-inverters with different capacities can be flexibly configured on site, parallel connection of a plurality of battery packs and parallel connection of a plurality of micro-inverters are supported, and functions of energy storage, alternating current output and electric energy quality treatment are provided through cooperative work. Meanwhile, online fault monitoring capability is provided, working state reporting and fault condition warning of the modules are provided through a wireless network or a wired network, field workers are prompted to replace corresponding fault modules through acousto-optic warning, the replaced modules are automatically monitored, and cooperative work is automatically started. Therefore, the problem that the existing new energy power generation and energy storage and micro inverter maintenance efficiency is low is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of micro-inverters, and in particular to an expandable modular new energy power generation and energy storage and micro-inverter control method and device. Background Art

[0002] In recent years, with the rapid development of photovoltaic energy storage technology, especially the rapid development of energy storage inverter technology, the demand for modular design has become increasingly higher, and the system requires increasingly higher power. More and more products have begun to add parallel functions to meet the needs of modular design for high power and redundancy.

[0003] At present, during the use of renewable energy power generation and storage and micro-inverters, staff are required to perform maintenance on the renewable energy power generation and storage and micro-inverters in sequence, which leads to reduced maintenance efficiency of the renewable energy power generation and storage and micro-inverters, and further increases the workload of staff. Summary of the invention

[0004] The purpose of the present invention is to provide an expandable modular new energy power generation storage and micro-inverter control method and device, aiming to solve the problem of low maintenance efficiency of existing new energy power generation storage and micro-inverter.

[0005] To achieve the above-mentioned purpose, in a first aspect, the present invention provides an expandable modular new energy power generation and energy storage and micro-inverter control device, comprising an Internet of Things communication module, a power generation module, a distributed energy storage module, a micro-inverter module, a monitoring module and a prompt module, wherein the Internet of Things communication module is connected to the power generation module, the distributed energy storage module and the micro-inverter module, the monitoring module is connected to the power generation module, the distributed energy storage module and the micro-inverter module, and the monitoring module is connected to the prompt module;

[0006] The Internet of Things communication module is used to communicate with the control center;

[0007] The power generation module is used for generating new energy;

[0008] The distributed energy storage module is used to store electricity;

[0009] The micro-inverter module is used for performing AC-DC conversion;

[0010] The monitoring module is used to monitor the micro-inverter module, the distributed energy storage module and the power generation module to obtain monitoring data;

[0011] The prompt module issues prompts to the staff based on the monitoring data.

[0012] Wherein, the distributed energy storage module includes a plurality of power storage units and a management unit, and the plurality of power storage units are respectively connected to the management unit;

[0013] A plurality of the electricity storage units are used to store electricity;

[0014] The management unit is used to manage the multiple power storage units.

[0015] Wherein, the monitoring module comprises a working state unit, a database unit, a judgment unit and a data transmission unit, and the working state unit, the database unit and the data transmission unit are respectively connected to the judgment unit;

[0016] The working status unit is used to monitor the working status of the micro-inverter module, the distributed energy storage module and the power generation module to obtain monitoring data;

[0017] The database unit is used for the administrator to store threshold data;

[0018] The judgment unit makes a judgment based on the threshold data to obtain a judgment result;

[0019] The data transmission unit is used to transmit the judgment result to the prompt module.

[0020] Wherein, the database unit comprises an input subunit, a data extraction subunit, a marking subunit and a storage subunit, wherein the input subunit, the data extraction subunit and the storage subunit are respectively connected to the marking subunit, and the input subunit is connected to the data extraction subunit;

[0021] The input subunit is used for the administrator to input threshold data;

[0022] The data extraction subunit is used to extract features from the threshold data;

[0023] The marking subunit marks the threshold data based on the feature;

[0024] The storage subunit is used to store the marked threshold data.

[0025] Wherein, the prompt module includes a data receiving unit, an instruction generating unit, an audio-visual reminder unit and a data backup unit, and the data receiving unit, the audio-visual reminder unit and the data backup unit are respectively connected to the instruction generating unit;

[0026] The data receiving unit is used to receive the judgment result;

[0027] The instruction generating unit generates a control instruction based on the judgment result;

[0028] The sound and light reminder unit sends a sound and light reminder to the staff based on the control instruction;

[0029] The data backup unit is used to package and back up the judgment result and the control instruction.

[0030] Wherein, the data backup unit comprises a sorting subunit, a reporting subunit and a backup subunit, and the reporting subunit and the backup subunit are respectively connected to the sorting subunit;

[0031] The arranging subunit is used to arrange and package the judgment result and the control instruction;

[0032] The reporting subunit is used to report the packaged judgment result and the control instruction to the control center;

[0033] The backup subunit is used to back up the judgment result and the control instruction.

[0034] In a second aspect, an expandable modular new energy power generation and energy storage and micro-inverter control method is used in the first aspect, wherein the expandable modular new energy power generation and energy storage and micro-inverter control device comprises the following steps:

[0035] Monitor the working status of micro-inverter modules, distributed energy storage modules and power generation modules to obtain monitoring data;

[0036] Performing a judgment based on the threshold data to obtain a judgment result;

[0037] A control instruction is generated based on the judgment result, and an audible and visual reminder is issued to the staff based on the control instruction.

[0038] The present invention provides an expandable modular new energy generation and energy storage and micro-inverter control device, including an Internet of Things communication module, a power generation module, a distributed energy storage module, a micro-inverter module, a monitoring module and a prompt module; the Internet of Things communication module is used to communicate with a control center; the power generation module is used for new energy power generation; the distributed energy storage module is used to store electricity; the micro-inverter module is used for AC-DC conversion; the monitoring module is used to monitor the micro-inverter module, the distributed energy storage module and the power generation module to obtain monitoring data; the prompt module issues prompts to staff based on the monitoring data. The present invention can realize a modular distributed energy storage unit, can flexibly configure battery packs and micro-inverters of different capacities on site, and supports multiple battery packs in parallel, multiple micro-inverters in parallel, and work together to provide energy storage and power quality management functions. At the same time, it provides online fault monitoring capabilities, provides module working status reporting and fault warnings through wireless or wired networks, prompts on-site staff to replace the corresponding faulty modules through sound and light warnings, automatically monitors the replaced modules, and automatically starts collaborative work, thus solving the problem of low maintenance efficiency of existing new energy power generation, energy storage and micro-inverters. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] 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 work.

[0040] Figure 1 It is a schematic diagram of the expandable modular new energy power generation storage and micro-inverter control device provided by the present invention.

[0041] Figure 2 It is a schematic diagram of a distributed energy storage module.

[0042] Figure 3 is a schematic diagram of the monitoring module.

[0043] Figure 4 is a schematic diagram of a database unit.

[0044] Figure 5 is a schematic diagram of the prompt module.

[0045] Figure 6 is a schematic diagram of a data backup unit.

[0046] Figure 7 The invention provides an expandable modular new energy power generation storage and micro-inverter control method.

[0047] In the figure: 1-Internet of Things communication module, 2-power generation module, 3-distributed energy storage module, 4-micro-inverter module, 5-monitoring module, 6-prompt module, 31-power storage unit, 32-management unit, 51-working status unit, 52-database unit, 53-judgment unit, 54-data transmission unit, 521-input subunit, 522-data extraction subunit, 523-marking subunit, 524-storage subunit, 61-data receiving unit, 62-instruction generation unit, 63-sound and light reminder unit, 64-data backup unit, 641-sorting subunit, 642-reporting subunit, 643-backup subunit. DETAILED DESCRIPTION

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0049] See also Figures 1 to 6 In the first aspect, the present invention provides an expandable modular new energy power generation and energy storage and micro-inverter control device, including an Internet of Things communication module 1, a power generation module 2, a distributed energy storage module 3, a micro-inverter module 4, a monitoring module 5 and a prompt module 6, wherein the Internet of Things communication module 1 is connected to the power generation module 2, the distributed energy storage module 3 and the micro-inverter module 4, the monitoring module 5 is connected to the power generation module 2, the distributed energy storage module 3 and the micro-inverter module 4, and the monitoring module 5 is connected to the prompt module 6;

[0050] The Internet of Things communication module 1 is used to communicate with the control center;

[0051] The power generation module 2 is used for generating new energy;

[0052] The distributed energy storage module 3 is used to store electricity;

[0053] The micro-inverter module 4 is used for performing AC-DC conversion;

[0054] The monitoring module 5 is used to monitor the micro-inverter module 4, the distributed energy storage module 3 and the power generation module 2 to obtain monitoring data;

[0055] The prompt module 6 issues prompts to the staff based on the monitoring data.

[0056] In this embodiment, the Internet of Things communication module 1 provides a wireless (or wired) communication module of the wide area wireless Internet of Things, such as WIoTa, NB-IoT, LoRa, (or such as PLC carrier power communication) to complete the communication function with the upper central controller; the distributed energy storage module 3 adopts a common DC bus and a unified interface socket, which can flexibly configure battery packs of different capacities on site and support multiple battery packs in parallel. The micro-inverter module 4 adopts a common DC bus and a unified interface socket, supports multiple micro-inverters in parallel, and uniformly outputs an AC bus interface, supports multiple micro-inverters in parallel to work together to provide AC output and AC power quality management functions. The power generation module 2 is used for new energy power generation; the distributed energy storage module 3 is used to store electricity; the micro-inverter module 4 is used for AC-DC conversion; the monitoring module 5 is used to monitor the micro-inverter module 4, the distributed energy storage module 3 and the power generation module 2 to obtain monitoring data; the prompt module 6 issues prompts to the staff based on the monitoring data. The present invention can realize a modular distributed energy storage unit, can flexibly configure battery packs and micro-inverters of different capacities on site, and supports multiple battery packs and multiple micro-inverters in parallel, which work together to provide energy storage and power quality management functions. At the same time, it provides online fault monitoring capabilities, provides module working status reporting and fault warnings through wireless networks or wired networks, prompts on-site staff to replace corresponding faulty modules through sound and light warnings, and automatically monitors the replaced modules, and automatically starts collaborative work. At the same time, a power quality detection device is connected to the AC output line to continuously detect the power quality of the output AC power and provide feedback to the micro-inverter in the system. When the power quality does not meet the requirements, the micro-inverter is instructed to adjust the working parameters so that the power quality of the output AC power meets the requirements. This solves the problem of low efficiency in existing new energy generation, energy storage and micro-inverter maintenance.

[0057] Furthermore, the distributed energy storage module 3 includes a plurality of power storage units 31 and a management unit 32, and the plurality of power storage units 31 are respectively connected to the management unit 32;

[0058] The plurality of power storage units 31 are used to store power;

[0059] The management unit 32 is used to manage the multiple power storage units 31 .

[0060] In this embodiment, electricity is stored by a plurality of the power storage units 31, and the management unit 32 manages the plurality of power storage units 31. The common DC bus and the unified interface socket of the distributed energy storage modules 3 can flexibly configure battery packs of different capacities on site, and support parallel connection of multiple battery packs, so that battery packs of different capacities can be flexibly configured on site.

[0061] Further, the monitoring module 5 includes a working state unit 51, a database unit 52, a judgment unit 53 and a data transmission unit 54, and the working state unit 51, the database unit 52 and the data transmission unit 54 are connected to the judgment unit 53 respectively;

[0062] The working status unit 51 is used to monitor the working status of the micro-inverter module 4, the distributed energy storage module 3 and the power generation module 2 to obtain monitoring data;

[0063] The database unit 52 is used for the administrator to store threshold data;

[0064] The judging unit 53 performs a judgment based on the threshold data to obtain a judgment result;

[0065] The data transmission unit 54 is used to transmit the determination result to the prompt module 6 .

[0066] In this embodiment, the working status unit 51 is used to monitor the working status of the micro-inverter module 4, the distributed energy storage module 3 and the power generation module 2 to obtain monitoring data; the database unit 52 is used for the administrator to store threshold data; the judgment unit 53 makes a judgment based on the threshold data to obtain a judgment result; the data transmission unit 54 is used to transmit the judgment result to the prompt module 6.

[0067] Further, the database unit 52 includes an input subunit 521, a data extraction subunit 522, a marking subunit 523 and a storage subunit 524, wherein the input subunit 521, the data extraction subunit 522 and the storage subunit 524 are respectively connected to the marking subunit 523, and the input subunit 521 is connected to the data extraction subunit 522;

[0068] The input subunit 521 is used for the administrator to input threshold data;

[0069] The data extraction subunit 522 is used to extract features from the threshold data;

[0070] The marking subunit 523 marks the threshold data based on the feature;

[0071] The storage subunit 524 is used to store the marked threshold data.

[0072] In this embodiment, the input subunit 521 is used by the administrator to input threshold data; the data extraction subunit 522 is used to extract features from the threshold data; the marking subunit 523 marks the threshold data based on the features; and the storage subunit 524 is used to store the marked threshold data.

[0073] Further, the prompt module 6 includes a data receiving unit 61, an instruction generating unit 62, an audio-visual reminder unit 63 and a data backup unit 64, and the data receiving unit 61, the audio-visual reminder unit 63 and the data backup unit 64 are respectively connected to the instruction generating unit 62;

[0074] The data receiving unit 61 is used to receive the judgment result;

[0075] The instruction generating unit 62 generates a control instruction based on the judgment result;

[0076] The sound and light reminder unit 63 sends a sound and light reminder to the staff based on the control instruction;

[0077] The data backup unit 64 is used to package and backup the judgment result and the control instruction.

[0078] In this embodiment, the data receiving unit 61 is used to receive the judgment result; the instruction generating unit 62 generates a control instruction based on the judgment result; the sound and light reminder unit 63 issues a sound and light reminder to the staff based on the control instruction; the data backup unit 64 is used to package and back up the judgment result and the control instruction.

[0079] Further, the data backup unit 64 includes a sorting subunit 641, a reporting subunit 642 and a backup subunit 643, and the reporting subunit 642 and the backup subunit 643 are respectively connected to the sorting subunit 641;

[0080] The arranging subunit 641 is used to arrange and package the judgment result and the control instruction;

[0081] The reporting subunit 642 is used to report the packaged judgment result and the control instruction to the control center;

[0082] The backup subunit 643 is used to back up the judgment result and the control instruction.

[0083] In this embodiment, the sorting subunit 641 is used to sort and package the judgment results and the control instructions; the reporting subunit 642 is used to report the packaged judgment results and the control instructions to the control center; the backup subunit 643 is used to back up the judgment results and the control instructions.

[0084] See also Figure 7 In a second aspect, a scalable modular new energy power generation and energy storage and micro-inverter control method is used in the first aspect, wherein the scalable modular new energy power generation and energy storage and micro-inverter control device comprises the following steps:

[0085] S1 monitors the working status of the micro-inverter module 4, the distributed energy storage module 3 and the power generation module 2 to obtain monitoring data;

[0086] Specifically, the working status unit 51 monitors the working status of the micro-inverter module 4, the distributed energy storage module 3 and the power generation module 2 to obtain monitoring data, and the database unit 52 is used for the administrator to store threshold data.

[0087] S2 performs judgment based on the threshold data to obtain a judgment result;

[0088] Specifically, the judgment unit 53 queries the corresponding threshold data according to the characteristics of the monitoring data, and makes a judgment based on the threshold data to obtain a judgment result, and the data transmission unit 54 transmits the judgment result to the prompt module 6.

[0089] S3 generates a control instruction based on the judgment result, and issues an audible and visual reminder to the staff based on the control instruction.

[0090] Specifically, the data receiving unit 61 receives the judgment result; the instruction generating unit 62 generates a control instruction based on the judgment result; the sound and light reminder unit 63 sends a sound and light reminder to the staff based on the control instruction; the data backup unit 64 is used to package and backup the judgment result and the control instruction. When a module fails, the system prompts the on-site staff to replace the corresponding faulty module through sound and light warnings; when the module is replaced, the system can automatically detect the replaced module. If it is installed correctly and functions normally, it will automatically start the collaborative work and send out sound and light information to remind the maintenance personnel that the module is working normally.

[0091] The scalable modular new energy generation and energy storage and micro-inverter control method and device of the present invention have the following features:

[0092] Beneficial effects:

[0093] 1. The scalable modular new energy power generation storage and micro-inverter control method and device of the present invention can realize a modular distributed energy storage unit, can flexibly configure battery packs and micro-inverters of different capacities on site, and support multiple battery packs and multiple micro-inverters in parallel, working together to provide energy storage and power quality management functions.

[0094] 2. The scalable modular new energy power generation and energy storage and micro-inverter control method and device of the present invention provide online fault monitoring capabilities, provide module working status reporting and fault condition warnings through a wireless network or a wired network, prompt on-site staff to replace the corresponding faulty module through sound and light warnings, automatically monitor the replaced module, and automatically start collaborative work.

[0095] 3. The present invention can expand modular new energy power generation, energy storage and micro-inverter control methods and devices. The modular expansion of new energy power generation, energy storage and micro-inverter control systems realizes flexible configuration, on-demand deployment, and automatic detection capabilities, simplifying the types of new energy products and on-site assembly requirements.

[0096] The above disclosure is only a preferred embodiment of the scalable modular new energy power generation storage and micro-inverter control method and device of the present invention. Of course, this cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of the present invention are still within the scope of the invention.

[0097] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. Expandable modular new energy generation storage and micro-inverter control device, characterized in that: It includes an Internet of Things communication module, a power generation module, a distributed energy storage module, a micro-inverter module, a monitoring module and a prompt module, wherein the Internet of Things communication module is connected to the power generation module, the distributed energy storage module and the micro-inverter module, the monitoring module is connected to the power generation module, the distributed energy storage module and the micro-inverter module, and the monitoring module is connected to the prompt module; The Internet of Things communication module is used to communicate with the control center; The power generation module is used for generating new energy; The distributed energy storage module is used to store electricity; The micro-inverter module is used for performing AC-DC conversion; The monitoring module is used to monitor the micro-inverter module, the distributed energy storage module and the power generation module to obtain monitoring data; The prompt module issues prompts to the staff based on the monitoring data.

2. The scalable modular new energy generation and energy storage and micro-inverter control device according to claim 1, characterized in that: The distributed energy storage module includes a plurality of power storage units and a management unit, and the plurality of power storage units are respectively connected to the management unit; A plurality of the electricity storage units are used to store electricity; The management unit is used to manage the multiple power storage units.

3. The scalable modular new energy generation and energy storage and micro-inverter control device according to claim 2, characterized in that: The monitoring module includes a working state unit, a database unit, a judgment unit and a data transmission unit, wherein the working state unit, the database unit and the data transmission unit are respectively connected to the judgment unit; The working status unit is used to monitor the working status of the micro-inverter module, the distributed energy storage module and the power generation module to obtain monitoring data; The database unit is used for the administrator to store threshold data; The judgment unit makes a judgment based on the threshold data to obtain a judgment result; The data transmission unit is used to transmit the judgment result to the prompt module.

4. The scalable modular new energy generation and energy storage and micro-inverter control device according to claim 3, characterized in that: The database unit comprises an input subunit, a data extraction subunit, a marking subunit and a storage subunit, wherein the input subunit, the data extraction subunit and the storage subunit are respectively connected to the marking subunit, and the input subunit is connected to the data extraction subunit; The input subunit is used for the administrator to input threshold data; The data extraction subunit is used to extract features from the threshold data; The marking subunit marks the threshold data based on the feature; The storage subunit is used to store the marked threshold data.

5. The scalable modular new energy generation and storage and micro-inverter control device according to claim 4, characterized in that: The prompt module includes a data receiving unit, an instruction generating unit, an audio-visual reminder unit and a data backup unit, wherein the data receiving unit, the audio-visual reminder unit and the data backup unit are respectively connected to the instruction generating unit; The data receiving unit is used to receive the judgment result; The instruction generating unit generates a control instruction based on the judgment result; The sound and light reminder unit sends a sound and light reminder to the staff based on the control instruction; The data backup unit is used to package and back up the judgment result and the control instruction.

6. The scalable modular new energy generation and energy storage and micro-inverter control device according to claim 5, characterized in that: The data backup unit comprises a sorting subunit, a reporting subunit and a backup subunit, wherein the reporting subunit and the backup subunit are respectively connected to the sorting subunit; The arranging subunit is used to arrange and package the judgment result and the control instruction; The reporting subunit is used to report the packaged judgment result and the control instruction to the control center; The backup subunit is used to back up the judgment result and the control instruction.

7. An expandable modular renewable energy power generation and energy storage and micro-inverter control method, used in the expandable modular renewable energy power generation and energy storage and micro-inverter control device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Monitor the working status of micro-inverter modules, distributed energy storage modules and power generation modules to obtain monitoring data; Performing a judgment based on the threshold data to obtain a judgment result; A control instruction is generated based on the judgment result, and an audible and visual reminder is issued to the staff based on the control instruction.

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