CN211857896U - Direct current microgrid model - Google Patents
Direct current microgrid model Download PDFInfo
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- CN211857896U CN211857896U CN202020855196.3U CN202020855196U CN211857896U CN 211857896 U CN211857896 U CN 211857896U CN 202020855196 U CN202020855196 U CN 202020855196U CN 211857896 U CN211857896 U CN 211857896U
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Abstract
The application discloses little electric wire netting model of direct current includes: the mode controller module is respectively connected with the distributed power generation module, the energy storage module, the public direct current bus module, the module control switch module, the large alternating current power grid module and the load module, and the distributed power generation module, the energy storage module, the load module and the large alternating current power grid module are respectively connected with the public direct current bus module through the module control switch module; the circuit module comprises a lighting circuit for displaying communication signals and current transmission processes among the modules by lighting; a mode controller module for controlling each module; the direct current microgrid model integrates various simulation modules, can simulate various scenes, enriches simulation scenes, utilizes the mode controller module to realize dynamic control on the model, enriches simulation content, utilizes the circuit module to simulate the trend of voltage, current and communication signals among the modules more intuitively, and improves the demonstration effect.
Description
Technical Field
The utility model relates to a power electronic technology field, in particular to little electric wire netting model of direct current.
Background
In recent years, new energy power generation gradually climbs in the national power generation proportion, a micro-grid can effectively integrate various forms of new energy power generation units and efficiently manage the new energy power generation units, and the micro-grid is a new generation of regional autonomous small-scale power grid and has two operation modes of island operation and grid-connected operation. Compared with an alternating-current micro-grid, the direct-current micro-grid has many advantages, such as no need of considering phase angle and frequency, no need of considering reactive compensation, low line loss, convenience for accessing of an energy storage device, capability of effectively stabilizing short-term power fluctuation of new energy power generation, improvement of power supply reliability and the like, and has great development and utilization values. The method has important practical significance for improving the cognitive awareness of the whole people to the DC micro-grid technology and developing the science popularization education of the DC micro-grid. The science popularization exhibit is a carrier of science popularization education, directly determines the effect of science popularization, is lack of science popularization exhibits in the field of direct-current micro-grid science popularization at present, and is single in function and static in demonstration.
The existing various microgrid demonstration models mainly develop science popularization application scene education, a new energy power generation unit model, a storage battery model component, a power electronic converter model and an application scene model component (such as an industrial park model and an intelligent household model) form a whole in a relatively coarse mode, the model is a static model, the direction and the size of current in the running process of a direct current microgrid cannot be dynamically demonstrated, and the demonstration effect is not strong.
Therefore, a direct current microgrid model supporting dynamic demonstration, having richer demonstration content and better demonstration effect is needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a little electric wire netting model of direct current supports dynamic demonstration, and demonstration content is more abundant, and the demonstration effect is better. The specific scheme is as follows:
a direct current microgrid model comprising: the system comprises a mode controller module, a distributed power generation module, an energy storage module, a load module, a public direct current bus module, a module control switch module, an alternating current large power grid module, a line module, display equipment and input equipment;
the mode controller module is respectively connected with the distributed power generation module, the energy storage module, the public direct current bus module, the module control switch module, the large alternating current grid module and the load module, and the distributed power generation module, the energy storage module, the load module and the large alternating current grid module are respectively connected with the public direct current bus module through the module control switch module;
the circuit module comprises a lighting circuit for displaying communication signals and current transmission processes among the modules by lighting;
the mode controller module is used for controlling each module;
the module control switch module is used for controlling the access or cut-out of each module;
the display equipment is used for displaying the operating data of each module;
the input device is used for inputting a control instruction to the mode controller module.
Optionally, the distributed power generation module includes a wind power generation unit, a photovoltaic power generation unit, a gas turbine unit and a fuel cell unit;
the wind power generation unit comprises a wind power generation electronic unit and an AC/DC converter;
the wind power generation electronic unit is connected with the public direct current bus module through the AC/DC converter and a wind power generation control switch in the module control switch module in sequence;
the photovoltaic power generation unit comprises a photovoltaic power generation electronic unit and a DC/DC converter;
the photovoltaic power generation electronic unit is connected with the common direct current bus module through the DC/DC converter and a photovoltaic power generation control switch in the module control switch module in sequence;
the gas turbine unit comprises a gas turbine subunit and an AC/DC converter;
the gas turbine subunit is connected with the common direct current bus module through a gas turbine control switch in the AC/DC converter and the module control switch module in sequence;
the fuel cell unit comprises a fuel cell subunit and a DC/DC converter;
and the fuel cell subunit is connected with the common direct current bus module through the DC/DC converter and a fuel cell control switch in the module control switch module in sequence.
Optionally, the load module includes an ac elevator unit, a dc LED load unit, an electric vehicle unit, and an energy router unit;
the alternating current elevator unit comprises an alternating current ladder unit and an AC/DC converter;
the alternating current ladder unit is connected with the common direct current bus module through the alternating current elevator control switch in the AC/DC converter and the module control switch module in sequence;
the direct current LED load unit comprises a direct current LED load subunit and a DC/DC converter;
the direct current LED load subunit is connected with the common direct current bus module through the direct current LED load control switch in the DC/DC converter and the module control switch module in sequence;
the electric automobile unit comprises an electric automobile subunit and a DC/DC converter;
the electric automobile subunit is connected with the public direct current bus module through the DC/DC converter and an electric automobile control switch in the module control switch module in sequence;
the energy router unit comprises an energy router subunit and a DC/DC converter;
and the energy router subunit is connected with the common direct current bus module through the energy router control switch in the DC/DC converter and the module control switch module in sequence.
Optionally, the large AC grid module includes a large AC grid unit and an AC/DC converter;
and the large alternating current power grid unit is connected with the public direct current bus module through the large alternating current power grid control switch in the AC/DC converter and the module control switch module in sequence.
Optionally, the energy storage module includes a lithium battery unit and a DC/DC converter;
and the lithium battery unit is connected with the common direct current bus module through the lithium battery control switch in the DC/DC converter and the module control switch module in sequence.
Optionally, the line module includes an LED circuit for displaying communication signals and current transmission processes between each module, unit and sub-unit with colored lights.
Optionally, the display device and the input device are touch display screens.
Optionally, the method further includes: a display panel;
the display panel is provided with display models corresponding to the subunits, the converter, the control switch, the common direct current bus module and the mode controller module;
a lighting circuit is arranged between the display models;
and the lighting circuit is used for displaying the transmission process of communication signals and current among the subunits, the converter, the control switch, the public direct-current bus module and the mode controller module corresponding to each display model by lighting.
The utility model discloses in, little electric wire netting model of direct current, include: the system comprises a mode controller module, a distributed power generation module, an energy storage module, a load module, a public direct current bus module, a module control switch module, an alternating current large power grid module, a line module, display equipment and input equipment; the mode controller module is respectively connected with the distributed power generation module, the energy storage module, the public direct current bus module, the module control switch module, the large alternating current power grid module and the load module, and the distributed power generation module, the energy storage module, the load module and the large alternating current power grid module are respectively connected with the public direct current bus module through the module control switch module; the circuit module comprises a lighting circuit for displaying communication signals and current transmission processes among the modules by lighting; a mode controller module for controlling each module; the module control switch module is used for controlling the access or cut-out of each module; the display equipment is used for displaying the operation data of each module; and the input device is used for inputting a control instruction to the mode controller module.
The utility model discloses a little electric wire netting model of direct current has integrateed various simulation module, can simulate multiple scene, has richened the simulation scene, utilizes the mode control ware module can realize richening the emulation content to the dynamic control of model, simultaneously, utilizes the circuit module, can more audio-visual simulation out the trend of voltage, electric current and communication signal between each module, has improved the demonstration effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a dc microgrid model according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses direct current microgrid model, it is shown with reference to fig. 1, this model includes: the system comprises a mode controller module 10, a distributed power generation module 11, an energy storage module 12, a load module 13, a public direct current bus module 14, a module control switch module 15, an alternating current large power grid module 16, a line module 17, a display device 18 and an input device 19;
the mode controller module 10 is respectively connected with the distributed power generation module 11, the energy storage module 12, the public direct current bus module 14, the module control switch module 15, the large alternating current power grid module 16 and the load module 13, and the distributed power generation module 11, the energy storage module 12, the load module 13 and the large alternating current power grid module 16 are respectively connected with the public direct current bus module 14 through the module control switch module 15;
a line module 17 including a lighting circuit for displaying communication signals and current transmission processes between the modules with lighting;
a mode controller module 10 for controlling the modules;
the module control switch module 15 is used for controlling the access or cut-out of each module;
a display device 18 for displaying the operation data of each module;
an input device 19 for inputting control instructions to the mode controller module 10.
Specifically, the distributed power generation module 11, the energy storage module 12, the load module 13, the common dc bus module 14, the module control switch module 15, and the ac power grid module 16 are respectively used for simulating various loads in the dc microgrid, the distributed power generation module 11 is used for simulating distributed power generation loads in the dc microgrid, such as wind power generation loads and photovoltaic power generation loads, the energy storage module 12 is used for simulating energy storage loads in the dc microgrid, such as lithium batteries, the load module 13 is used for simulating common load loads in the dc microgrid, such as elevators, electric vehicles, etc., the common dc bus module 14 is used for simulating various parameters and states of the common dc bus in the dc microgrid, the module control switch module 15 is used for simulating a control switch in the dc microgrid for controlling each module to be connected to the common dc bus, for example, the circuit breaker and the alternating current large power grid module 16 are used for simulating an input end alternating current large power grid of the direct current micro power grid.
Specifically, the mode controller module 10 is connected to each module, and is capable of receiving various operation data transmitted by each module, automatically controlling the operating state of each module according to the various operation data, and performing mode switching, and also controlling the operating state of each module according to the operation of a user, and performing mode switching, so as to realize simulation control on the whole dc microgrid, for example, according to information such as relevant power, voltage, weather, and electricity price collected and transmitted from each module, manually or automatically switching the operating mode of the dc microgrid model, stabilize the system stability of the dc microgrid, and realize economical and coordinated scheduling of power distribution.
Specifically, the dc microgrid model may include a display panel, each module may be provided with a corresponding display model on the display panel of the dc microgrid model for aesthetic purposes, a lighting circuit in the line module 17 for simulating an actual connection relationship between the modules is provided between the display models, the connection relationship between the modules corresponding to each display model is displayed through the lighting circuit, meanwhile, the lighting circuit may simulate a flow direction of an actual current and a communication signal between the modules through flashing of light in the form of a marquee or a running water lamp, and may simulate a strength of the current or voltage through a strength of the light, of course, the lighting circuit in the line module 17 may include colored lamps of various colors, and different signal types or signal flow directions may be distinguished using different colors, for example, a communication signal and a voltage current signal are distinguished, an input and an output are distinguished, therefore, a user can directly and visually observe the actual current among the modules, the flow direction of communication signals, the strength of the signals and other contents through the display panel.
Further, the line module 17 may also issue an alarm in a manner of flashing rapidly due to a sudden change of light, etc. to prompt the overload problem of the load module 13.
It should be noted that the connection lines between the modules, units and sub-units in fig. 1 represent, on one hand, the connection relationships between the modules, units and sub-units, and also represent the connection circuits simulated by the light circuits of the circuit module 17 on the display panel.
Specifically, the display device 18 can display the operation parameters and various data of each module to the user, and the input device 19 allows the user to input control instructions to control the operation mode of each module through the mode controller module 10.
It can be seen that, the utility model discloses a direct current microgrid model has integrated various simulation module, can simulate multiple scene, has richened the simulation scene, utilizes mode controller module 10 can realize richening the emulation content to the dynamic control of model, simultaneously, utilizes circuit module 17, can more audio-visual simulation out the trend of voltage, electric current and communication signal between each module, has improved the demonstration effect.
Further, the embodiment of the utility model provides a still disclose a direct current microgrid model, for last embodiment, this embodiment has made further explanation and optimization to technical scheme. Referring to fig. 1, specifically:
specifically, the upper distributed generation module 11 may specifically include a wind power generation unit, a photovoltaic power generation unit, a gas turbine unit, and a fuel cell unit;
the wind power generation unit comprises a wind power generation electronic unit 111 and an AC/DC converter 112;
the wind power generation electronic unit 111 is connected with the common direct current bus module 14 through the AC/DC converter 112 and the wind power generation control switch K6 in the module control switch module 15 in sequence;
the photovoltaic power generation unit includes a photovoltaic power generation electronic unit 113 and a DC/DC converter 114;
the photovoltaic power generation electronic unit 113 is connected with the common direct current bus module 14 through the DC/DC converter 114 and the photovoltaic power generation control switch K7 in the module control switch module 15 in sequence;
the gas turbine unit includes a gas turbine subunit 115 and an AC/DC converter 116;
the gas turbine subunit 115 is connected to the common DC bus module 14 via the AC/DC converter 116 and the gas turbine control switch K8 in the module control switch module 15 in sequence;
the fuel cell unit includes a fuel cell subunit 117 and a DC/DC converter 118;
the fuel cell subunit 117 is connected to the common DC bus module 14, in turn, via a DC/DC converter 118 and a fuel cell control switch K9 in the module control switch module 15.
Specifically, each subunit can simulate an MPPT mode and a droop control mode; the MPPT mode enables the distributed generation module 11 to meet the power requirements of the load module 13 and the energy storage module 12 through maximum power output, and the droop control mode enables the distributed generation module 11 to coordinate energy distribution in a management system, balance direct-current bus voltage and enhance the stability of the system when the energy storage part is disconnected in the island operation mode of the intelligent building direct-current micro-grid.
Specifically, the load module 13 may specifically include an ac elevator unit, a dc LED load unit, an electric vehicle unit, and an energy router unit;
the alternating current elevator unit includes an alternating current ladder unit 131 and an AC/DC converter 132;
the alternating current ladder unit 131 is connected with the common direct current bus module 14 through the alternating current elevator control switch K1 in the AC/DC converter 132 and the module control switch module 15 in sequence;
the direct current LED load unit includes a direct current LED load subunit 133 and a DC/DC converter 134;
the DC LED load subunit 133 is connected to the common DC bus module 14 through the DC/DC converter 134 and the DC LED load control switch K2 in the module control switch module 15 in sequence;
the electric vehicle unit includes an electric vehicle subunit 135 and a DC/DC converter 136;
the electric automobile subunit 135 is connected with the common direct current bus module 14 through the DC/DC converter 136 and the electric automobile control switch K3 in the module control switch module 15 in sequence;
the energy router unit comprises an energy router subunit 137 and a DC/DC converter 138;
the energy router subunit 137 is connected to the common DC bus module 14 via in turn a DC/DC converter 138 and an energy router control switch K4 in the module control switch module 15.
Specifically, the AC power grid module 16 may specifically include an AC power grid unit 161 and an AC/DC converter 162;
the AC main unit 161 is connected to the common DC bus module 14 via the AC/DC converter 162 and the AC main control switch K5 in the module control switch module 15.
Specifically, the energy storage module 12 may specifically include a lithium battery unit 121 and a DC/DC converter 122;
the lithium battery cell 121 is connected to the common DC bus module 14 through the DC/DC converter 122 and the lithium battery control switch K10 in the module control switch module 15 in sequence.
Specifically, the lithium battery unit 121 may switch the charge and discharge modes according to the power balance condition in the model.
It can be understood that each unit is used for simulating the operation state of the corresponding load in the direct current microgrid.
Specifically, the line module 17 may specifically use an LED circuit to display communication signals and current transmission processes between each module, unit and sub-unit with colored lights.
Specifically, the display panel may be configured to set each module, subunit, inverter, and control switch at a corresponding position as shown in fig. 1 for displaying, and the display panel may be configured with display models corresponding to each subunit, inverter, control switch, common dc bus module 14, and mode controller module 10;
a lighting circuit is arranged between the display models;
and the lighting circuit is used for displaying the communication signal and current transmission process among the sub-units, the converter, the control switch, the common direct current bus module 14 and the mode controller module 10 corresponding to the display models by lighting.
Specifically, each subunit, the converter, the control switch, the common dc bus module 14, and the mode controller module 10 may be provided with a corresponding display model on the display panel, a lighting circuit in the line module 17 for simulating an actual connection relationship between the modules is provided between the display models, the connection relationship between the display models and a flow direction of an actual current and a communication signal are displayed through the lighting circuit, and the intensity of the current or the voltage may be simulated through the intensity of the lighting.
It can be understood that the display model is a display device which is used for the modules, units, subunits and the like to be visually observed by the user on the display panel, and the actual simulation process of the whole model is still executed by the modules, units, subunits and the like.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A dc microgrid model, comprising: the system comprises a mode controller module, a distributed power generation module, an energy storage module, a load module, a public direct current bus module, a module control switch module, an alternating current large power grid module, a line module, display equipment and input equipment;
the mode controller module is respectively connected with the distributed power generation module, the energy storage module, the public direct current bus module, the module control switch module, the alternating current large power grid module, the load module, the display device and the input device, and the distributed power generation module, the energy storage module, the load module and the alternating current large power grid module are respectively connected with the public direct current bus module through the module control switch module;
the circuit module comprises a lighting circuit for displaying communication signals and current transmission processes among the modules by lighting;
the mode controller module is used for controlling each module;
the module control switch module is used for controlling the access or cut-out of each module;
the display equipment is used for displaying the operating data of each module;
the input device is used for inputting a control instruction to the mode controller module.
2. The direct current microgrid model of claim 1, wherein the distributed power generation modules include wind power generation units, photovoltaic power generation units, gas turbine units and fuel cell units;
the wind power generation unit comprises a wind power generation electronic unit and an AC/DC converter;
the wind power generation electronic unit is connected with the public direct current bus module through the AC/DC converter and a wind power generation control switch in the module control switch module in sequence;
the photovoltaic power generation unit comprises a photovoltaic power generation electronic unit and a DC/DC converter;
the photovoltaic power generation electronic unit is connected with the common direct current bus module through the DC/DC converter and a photovoltaic power generation control switch in the module control switch module in sequence;
the gas turbine unit comprises a gas turbine subunit and an AC/DC converter;
the gas turbine subunit is connected with the common direct current bus module through a gas turbine control switch in the AC/DC converter and the module control switch module in sequence;
the fuel cell unit comprises a fuel cell subunit and a DC/DC converter;
and the fuel cell subunit is connected with the common direct current bus module through the DC/DC converter and a fuel cell control switch in the module control switch module in sequence.
3. The direct current microgrid model of claim 2, wherein the load modules include an alternating current elevator unit, a direct current LED load unit, an electric car unit, and an energy router unit;
the alternating current elevator unit comprises an alternating current ladder unit and an AC/DC converter;
the alternating current ladder unit is connected with the common direct current bus module through the alternating current elevator control switch in the AC/DC converter and the module control switch module in sequence;
the direct current LED load unit comprises a direct current LED load subunit and a DC/DC converter;
the direct current LED load subunit is connected with the common direct current bus module through the direct current LED load control switch in the DC/DC converter and the module control switch module in sequence;
the electric automobile unit comprises an electric automobile subunit and a DC/DC converter;
the electric automobile subunit is connected with the public direct current bus module through the DC/DC converter and an electric automobile control switch in the module control switch module in sequence;
the energy router unit comprises an energy router subunit and a DC/DC converter;
and the energy router subunit is connected with the common direct current bus module through the energy router control switch in the DC/DC converter and the module control switch module in sequence.
4. The direct current microgrid model of claim 3, characterized in that the large alternating current grid module comprises large alternating current grid units and an AC/DC converter;
and the large alternating current power grid unit is connected with the public direct current bus module through the large alternating current power grid control switch in the AC/DC converter and the module control switch module in sequence.
5. The direct current microgrid model of claim 4, wherein the energy storage module comprises a lithium battery cell and a DC/DC converter;
and the lithium battery unit is connected with the common direct current bus module through the lithium battery control switch in the DC/DC converter and the module control switch module in sequence.
6. The direct current microgrid model of claim 5, wherein the line modules comprise LED circuits for displaying communication signals and current transmission processes between modules, units and subunits in colored lights.
7. The direct current microgrid model of any of claims 1 to 6, wherein the display device and the input device are touch display screens.
8. The direct current microgrid model of claim 6, further comprising: a display panel;
the display panel is provided with display models corresponding to the subunits, the converter, the control switch, the common direct current bus module and the mode controller module;
a lighting circuit is arranged between the display models;
and the lighting circuit is used for displaying the transmission process of communication signals and current among the subunits, the converter, the control switch, the public direct-current bus module and the mode controller module corresponding to each display model by lighting.
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| CN202020855196.3U CN211857896U (en) | 2020-05-20 | 2020-05-20 | Direct current microgrid model |
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| CN202020855196.3U CN211857896U (en) | 2020-05-20 | 2020-05-20 | Direct current microgrid model |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112419847A (en) * | 2020-11-12 | 2021-02-26 | 广东电网有限责任公司 | Dynamic display method and display system of current limiter |
| CN113674586A (en) * | 2021-08-20 | 2021-11-19 | 北京中企智造科技有限公司 | Information technology intelligent hardware interaction teaching platform and interaction method |
| CN114708791A (en) * | 2022-03-25 | 2022-07-05 | 中建科技集团北京低碳智慧城市科技有限公司 | Power distribution display system and method |
-
2020
- 2020-05-20 CN CN202020855196.3U patent/CN211857896U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112419847A (en) * | 2020-11-12 | 2021-02-26 | 广东电网有限责任公司 | Dynamic display method and display system of current limiter |
| CN113674586A (en) * | 2021-08-20 | 2021-11-19 | 北京中企智造科技有限公司 | Information technology intelligent hardware interaction teaching platform and interaction method |
| CN114708791A (en) * | 2022-03-25 | 2022-07-05 | 中建科技集团北京低碳智慧城市科技有限公司 | Power distribution display system and method |
| CN114708791B (en) * | 2022-03-25 | 2023-12-22 | 中建科技集团北京低碳智慧城市科技有限公司 | Power distribution display system and method |
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Granted publication date: 20201103 |