CN205141701U - Energy control system - Google Patents
Energy control system Download PDFInfo
- Publication number
- CN205141701U CN205141701U CN201520979057.0U CN201520979057U CN205141701U CN 205141701 U CN205141701 U CN 205141701U CN 201520979057 U CN201520979057 U CN 201520979057U CN 205141701 U CN205141701 U CN 205141701U
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- CN
- China
- Prior art keywords
- power
- loads
- switching circuit
- electrically connected
- processor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
According to the energy control system, the current output by the photovoltaic direct-current voltage reducer is inverted by the inverter and then output to a plurality of power loads; the state information of the power utilization load and the solar power generation amount are collected through the collection subsystem; the processor controls the first switching circuit through the acquired data so as to control the connection/disconnection of the electric load and the commercial power interface. It is thus clear, through the embodiment of the utility model provides an energy control system, when control power consumption load is connected with the commercial power electricity, can be the power consumption load power supply through the commercial power, when forbidding power consumption load and commercial power electricity to be connected, can only supply power to power consumption load through solar energy power generation, because the electric energy to with solar energy conversion carries out the output after the contravariant and gives a plurality of AC power supply loads, guarantee that solar energy conversion obtains the maximum utilization of electric energy, reduce extravagantly, and can pass through the commercial power supply when the electric energy that solar energy conversion obtained is not enough, guarantee the incessant of power consumption load power supply.
Description
Technical Field
The utility model relates to an energy control technical field, in particular to energy control system.
Background
Today, photovoltaic solar energy and smart grid are rapidly developing, people have improved solar energy utilization. In the traditional solar energy utilization mode, electric energy obtained by converting solar energy is directly used for a specific direct current load, and the electric energy generated by the solar energy is rarely managed and controlled, so that great waste is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy control system to manage the electric energy that solar energy produced, it is extravagant to reduce.
In order to achieve the above object, the utility model provides a following technical scheme:
an energy control system comprising:
the inverter is electrically connected with the photovoltaic direct-current step-down transformer and the plurality of power loads respectively;
the acquisition subsystem is used for acquiring the state information of the plurality of power loads and acquiring the solar power generation amount based on the photovoltaic direct current voltage reducer or the inverter;
the first switching circuit is electrically connected with the plurality of electric loads and the commercial power interface respectively;
and the processor is respectively electrically connected with the acquisition subsystem and the first switching circuit and used for controlling the first switching circuit based on the data acquired by the acquisition subsystem so as to control the on/off of the plurality of power loads and the commercial power interface.
In the above system, preferably, the first switching circuit is a relay or a relay group.
The above system, preferably, the acquisition subsystem includes: the system comprises a first type of sensor used for collecting state information of the plurality of electric loads and a second type of sensor used for collecting output voltage and/or current of the inverter.
The above system, preferably, the acquisition subsystem includes:
the intelligent electricity meter comprises a first type of sensor used for collecting state information of the plurality of electricity loads and an intelligent electricity meter used for collecting electric quantity of an output end of the photovoltaic direct current voltage reducer.
The above system, preferably, further comprises:
the charging circuit is electrically connected with the photovoltaic direct-current step-down transformer and the processor respectively;
the energy storage cabinet is electrically connected with the charging circuit;
the processor includes: and a processor for controlling the charging circuit to be turned on/off based on the data collected by the collection subsystem.
The above system, preferably, further comprises: a second switching circuit;
the energy storage cabinet is also electrically connected with the plurality of electric loads through the second switching circuit;
the processor includes: and the processor is used for controlling the second switching circuit based on the data acquired by the acquisition subsystem so as to control the on/off of the energy storage cabinet and the plurality of power loads.
The above system, preferably, further comprises:
and the upper computer is electrically connected with the processor.
According to the energy control system provided by the embodiment of the application, the current output by the photovoltaic direct-current step-down transformer is inverted by the inverter and then is output to a plurality of power loads; the state information of the power utilization load and the solar power generation amount are collected through the collection subsystem; the processor controls the first switching circuit through the acquired data so as to control the connection/disconnection of the electric load and the commercial power interface. It is thus clear, through the embodiment of the utility model provides an energy control system, when control power consumption load is connected with the commercial power electricity, can be the power consumption load power supply through the commercial power, when forbidding power consumption load and commercial power electricity to be connected, can only supply power to power consumption load through solar energy power generation, because the electric energy to with solar energy conversion carries out the output after the contravariant and gives a plurality of AC power supply loads, guarantee that solar energy conversion obtains the maximum utilization of electric energy, reduce extravagantly, and can pass through the commercial power supply when the electric energy that solar energy conversion obtained is not enough, guarantee the incessant of power consumption load power supply.
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 an energy control system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an energy control system according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of another energy control system according to an embodiment of the present disclosure.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be practiced otherwise than as specifically illustrated.
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.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an energy control system according to an embodiment of the present disclosure, which may include:
the system comprises an inverter 1, an acquisition subsystem 2, a first switching circuit 3 and a processor 4; wherein,
the inverter 1 is respectively electrically connected with the photovoltaic direct current voltage reducer and the plurality of power loads and is used for inverting the direct current output by the photovoltaic direct current voltage reducer to obtain alternating current of commercial power standard, and the obtained alternating current is used for supplying power to the plurality of alternating current loads.
The photovoltaic direct current voltage reducer is connected with the solar collecting plate and used for reducing the voltage of the electric signals output by the solar collecting plate.
The ac loads may include, but are not limited to, the following: the system comprises a variable frequency fan, a variable frequency compressor, a lighting system, a dehumidification system, a network operation system and the like.
The collection subsystem 2 is used for collecting the state information of the plurality of power loads and the solar power generation amount. The state information of the power utilization load may include, but is not limited to, the following: voltage, current, etc. The collection subsystem 2 may collect the solar power generation amount based on the photovoltaic dc voltage reducer or the inverter, and specifically, may collect the solar power generation amount at an output end of the inverter 1, or may collect the solar power generation amount at an input end of the inverter 1, that is, an output end of the photovoltaic dc voltage reducer.
The first switching circuit 3 is respectively electrically connected with the plurality of electric loads and the mains supply interface, and the first switching circuit 3 can control whether the plurality of electric loads supply power through the mains supply interface.
The processor 4 is respectively electrically connected with the acquisition subsystem 2 and the first switching circuit 3, and is used for controlling the first switching circuit 3 based on the data acquired by the acquisition subsystem 2 so as to control the on/off of the electrical connection between the plurality of power loads and the commercial power interface. When the electric load is disconnected with the electric connection of the commercial power interface, the electric load is powered by solar energy only.
The processor 4 may determine a total power consumption amount of the plurality of power loads based on the state information of the plurality of power loads collected by the collection subsystem 2; if the difference value between the solar power generation amount and the total power consumption of the plurality of power consumption loads is larger than a first preset threshold value, the plurality of power consumption loads are disconnected from the commercial power interface, namely, the power is supplied to the loads only through solar power generation; if the solar power generation capacity is smaller than the total power consumption of the plurality of power loads, the plurality of power loads are controlled to be electrically connected with the mains supply interface, and because the solar energy and the mains supply independently supply power to the loads, when the plurality of power loads are controlled to be electrically connected with the mains supply interface, the inverter is controlled to stop outputting the electric signals, so that the power is supplied to the plurality of power loads only through the mains supply.
When the difference value between the solar power generation amount and the total power consumption of the plurality of power consumption loads is larger than a first preset threshold value, the solar power generation amount is sufficient, and at the moment, the power consumption loads can be supplied with power only through solar power generation; when the solar power generation is smaller than the total power consumption of the plurality of power utilization loads, the solar power generation is insufficient to supply power to the plurality of power utilization loads, and at the moment, the commercial power can be used for supplying power to the plurality of power utilization loads.
The embodiment of the utility model provides an energy control system, output to a plurality of power consumption loads after the current of photovoltaic direct current step-down transformer output is invertd through the inverter; the state information of the power utilization load and the solar power generation amount are collected through the collection subsystem; the processor controls the first switching circuit through the acquired data so as to control the connection/disconnection of the electric load and the commercial power interface. It is visible, through the embodiment of the utility model provides an energy control system, when control power consumption load is connected with commercial power interface electricity, can be the power consumption load power supply through the commercial power, when forbidding power consumption load and commercial power interface electricity to be connected, can only supply power to power consumption load through solar energy power generation, because carry out the electric energy that obtains with the solar energy conversion and export for a plurality of AC power supply loads after the contravariant, guarantee that the solar energy conversion obtains the maximum utilization of electric energy, reduce extravagantly, and can pass through the commercial power supply when the electric energy that the solar energy conversion obtained is not enough, guarantee the incessant of power consumption load power supply.
Optionally, the first switching circuit may be a relay, or may be a relay group, that is, the first switching circuit is composed of a plurality of relays. The structure of the specific relay set can be determined according to the use condition.
Optionally, the acquisition subsystem 2 may include: the system comprises a first type of sensor used for collecting state information of a plurality of power loads and a second type of sensor used for collecting output voltage and/or an output circuit of the inverter.
The first type of sensor may include a voltage sensor and/or a current sensor, and may also include a temperature sensor, etc.
The second type of sensor can comprise a voltage sensor and/or a current sensor, and the amount of solar power generation can be calculated through data collected by the second type of sensor.
Optionally, the acquisition subsystem 2 may include: the intelligent electricity meter comprises a first type of sensor used for collecting state information of a plurality of electricity loads and an intelligent electricity meter used for collecting electric quantity of an output end of the photovoltaic direct current voltage reducer.
Different from the previous embodiment, in this embodiment, the output end electric quantity of the photovoltaic direct current voltage reducer is directly collected through the smart electric meter, and the smart electric meter can send the collected output end electric quantity of the photovoltaic direct current voltage reducer to the processor 4 in a wireless communication mode.
Optionally, on the basis of the embodiment shown in fig. 1, another schematic structural diagram of the energy control system provided in the embodiment of the present invention is shown in fig. 2, and may further include:
a charging circuit 5 electrically connected with the photovoltaic DC step-down transformer and the processor 4 respectively
And the energy storage cabinet 6 is connected with the charging circuit 5 point.
The processor 4 may specifically include: and a processor for controlling the charging circuit 5 to be switched on or off based on the data collected by the collection subsystem 2. That is to say, the processor 4 is configured to control the first switching circuit 3 based on the data collected by the collection subsystem 2, so as to control on or off of the electrical connection between the plurality of electrical loads and the utility power interface, and also may control the charging circuit 5 to be turned on or off based on the data collected by the collection subsystem 2.
When the charging circuit 5 is started, the photovoltaic direct-current voltage reducer can charge the energy storage cabinet 6 through the charging circuit 5, namely, the electric energy generated by solar power generation is stored. When the charging circuit 5 is turned off, the energy storage cabinet 6 is stopped to be charged.
If the difference value between the solar power generation amount and the total power consumption of the plurality of power loads is larger than a second preset threshold value, controlling the photovoltaic direct-current voltage reducer to charge the energy storage cabinet;
if the difference value between the solar power generation amount and the total power consumption of the plurality of power loads is smaller than a second preset threshold value, the photovoltaic direct-current voltage reducer is forbidden to charge the energy storage cabinet;
the second preset threshold is greater than the first preset threshold.
The difference value between the solar power generation amount and the total power consumption of the plurality of power loads is larger than a second preset threshold value, which indicates that the solar power generation amount is used for supplying power to the power loads, the power generation amount is surplus, and the surplus power can be stored through the energy storage cabinet 6.
Optionally, on the basis of the embodiment shown in fig. 2, another schematic structural diagram of the energy control system provided in the embodiment of the present invention is shown in fig. 3, and may further include:
a second switching circuit 7 electrically connected to the processor 4;
in the embodiment of the present invention, the energy storage cabinet 6 is further electrically connected to a plurality of power loads through the second switching circuit 7;
the processor 4 may specifically include: and the second switching circuit 7 is controlled based on the data acquired by the acquisition subsystem 2 so as to control the on-off of the energy storage cabinet 6 and a plurality of electric loads. That is, the processor 4 can control whether the energy storage cabinet 6 supplies power to the electric load through the second switching circuit 7 in addition to the aforementioned functions.
When the solar generating capacity is smaller than the total power consumption of the plurality of power loads, the processor 4 can control the energy storage cabinet 6 to be electrically connected with the plurality of power loads, and the energy storage cabinet 6 supplies power to the plurality of power loads. And when the electric quantity of the energy storage cabinet 6 is smaller than a preset electric quantity threshold value (the electric quantity of the energy storage cabinet 6 is insufficient), controlling the electric load to be electrically connected with the commercial power interface.
That is to say, in the embodiment of the utility model provides an in, preferentially use solar energy power generation to charge for above-mentioned a plurality of power consumption loads, when solar energy generated energy is not enough, if energy storage cabinet 6 storage has sufficient electric quantity, then preferentially use energy storage cabinet 6 to charge for above-mentioned a plurality of power consumption loads, if energy storage cabinet 6 circuit is not enough, just use the commercial power to supply power for above-mentioned a plurality of power consumption loads.
Optionally, the embodiment of the present invention provides an energy control system, which may further include:
and the upper computer is electrically connected with the processor 4. The processor 4 can upload the state information of a plurality of power utilization loads and the solar energy generated energy collected by the collection subsystem 2 to an upper computer for displaying. The user can conveniently check the information.
The above is to the energy control system provided by the utility model is introduced in detail. The embodiment of the present application has been applied to a specific embodiment and is described the principle and the implementation of the present invention, and the description of the above embodiments is only used to help understand the core idea of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979057.0U CN205141701U (en) | 2015-11-30 | 2015-11-30 | Energy control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520979057.0U CN205141701U (en) | 2015-11-30 | 2015-11-30 | Energy control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205141701U true CN205141701U (en) | 2016-04-06 |
Family
ID=55627454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520979057.0U Expired - Lifetime CN205141701U (en) | 2015-11-30 | 2015-11-30 | Energy control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205141701U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281370A (en) * | 2015-11-30 | 2016-01-27 | 珠海格力电器股份有限公司 | Energy control system and method |
| CN105790303A (en) * | 2016-04-14 | 2016-07-20 | 东华大学 | Intelligent microgrid |
| CN109347461A (en) * | 2018-09-28 | 2019-02-15 | 北京汉能光伏投资有限公司 | Control method and system for expansion board |
-
2015
- 2015-11-30 CN CN201520979057.0U patent/CN205141701U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281370A (en) * | 2015-11-30 | 2016-01-27 | 珠海格力电器股份有限公司 | Energy control system and method |
| CN105790303A (en) * | 2016-04-14 | 2016-07-20 | 东华大学 | Intelligent microgrid |
| CN109347461A (en) * | 2018-09-28 | 2019-02-15 | 北京汉能光伏投资有限公司 | Control method and system for expansion board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20160406 |