CN113757930A - Electric power peak shaving system and air conditioning equipment - Google Patents

Electric power peak shaving system and air conditioning equipment Download PDF

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Publication number
CN113757930A
CN113757930A CN202010494966.0A CN202010494966A CN113757930A CN 113757930 A CN113757930 A CN 113757930A CN 202010494966 A CN202010494966 A CN 202010494966A CN 113757930 A CN113757930 A CN 113757930A
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CN
China
Prior art keywords
peak
air conditioning
conditioning equipment
electricity price
peak shaving
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Pending
Application number
CN202010494966.0A
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Chinese (zh)
Inventor
李健
矫晓龙
任兆亭
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Qingdao Hisense Hitachi Air Conditioning System Co Ltd
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Qingdao Hisense Hitachi Air Conditioning System Co Ltd
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Publication date
Application filed by Qingdao Hisense Hitachi Air Conditioning System Co Ltd filed Critical Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority to CN202010494966.0A priority Critical patent/CN113757930A/en
Publication of CN113757930A publication Critical patent/CN113757930A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/56—Remote control
    • F24F11/58—Remote control using Internet communication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • H02J13/00026—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission involving a local wireless network, e.g. Wi-Fi, ZigBee or Bluetooth
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/50—Load
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/60—Energy consumption
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/221—General power management systems
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Fuzzy Systems (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an electric power peak shaving system and air conditioning equipment, wherein the electric power peak shaving system is applied to a plurality of air conditioning equipment and comprises the following components: the cloud platform is used for receiving peak-valley electricity price information predicted by the power grid end; the gateway is used for forming a plurality of air conditioning equipment into a wireless local area network and accessing the cloud platform; and the terminal equipment is wirelessly connected with the cloud platform and can provide and receive the peak-valley electricity price information, so that the terminal equipment sends a peak regulation instruction to one or more of the plurality of air-conditioning equipment according to the peak-valley electricity price information. The method and the system are convenient for guiding a user to carry out active power peak shaving through the terminal equipment according to the peak-valley electricity price information, and achieve the effect of peak shaving and valley filling at the power grid end.

Description

Electric power peak shaving system and air conditioning equipment
Technical Field
The invention relates to the technical field of power grids, in particular to a power peak regulation system and air conditioning equipment.
Background
At present, household air conditioners generally operate under the control of remote control instructions of a remote controller, and some air conditioner units receive control instructions through the Internet of things, but the instructions are also from the use requirements of a certain user. Therefore, the current household air conditioner or air conditioning unit is operated independently, and the power supply condition of the operation environment, particularly the power grid, is not considered much.
In a power grid supply system, the power supply and demand are often asymmetric. During the peak period of power consumption, the power consumption will increase suddenly, the air conditioners or air conditioning units which run independently may run simultaneously, even run at high power, resulting in higher power load and even exceed the power supply load of the power grid, while during the peak period of power consumption, the power consumption will decrease, resulting in surplus of power at the power supply side of the power grid, resulting in waste of power.
In order to achieve the purpose of peak clipping and valley filling, besides the conventional peak-valley electricity price passive peak regulation, the peak-peak electricity price passive peak regulation also adopts electric power active peak regulation.
Disclosure of Invention
The embodiment of the invention provides a power peak shaving system and air conditioning equipment, which are convenient for guiding a user to actively adjust the peak power through terminal equipment according to peak-valley electricity price information, and achieve the effect of peak shaving and valley filling at a power grid end.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
the application relates to an electric power peak shaving system is applied to a plurality of air conditioning equipment, includes:
the cloud platform is used for receiving peak-valley electricity price information predicted by the power grid end;
the gateway is used for forming a plurality of air conditioning equipment into a wireless local area network and accessing the cloud platform;
and the terminal equipment is wirelessly connected with the cloud platform and can provide and receive the peak-valley electricity price information, so that the terminal equipment sends a peak regulation instruction to one or more of the plurality of air-conditioning equipment according to the peak-valley electricity price information.
The utility model relates to an electric power peak regulation system, wherein the peak-valley electricity price information that the cloud platform can receive the electric wire netting end prediction, the peak-valley electricity price information can reflect the power consumption peak-valley of electric wire netting end, the cloud platform conveys peak-valley electricity price information to terminal equipment, terminal equipment passes through cloud platform and gateway and exports the peak regulation instruction to a plurality of air conditioning equipment according to peak-valley electricity price information, guide the user to carry out initiative electric power peak regulation to a plurality of air conditioning equipment, reach the effect that the peak clipping filled the valley, the realization is balanced with the power supply of electric wire netting end.
In some embodiments of the present application, the peak shaving instruction controls the air conditioner to be operated to operate at a high load when a peak value in the peak-valley electricity rate information is not reached, and controls the air conditioner to operate at a low load when the peak value in the peak-valley electricity rate information is reached.
In some embodiments of the present application, after one or more of the plurality of air conditioners receive a peak shaving instruction and respond to the peak shaving instruction, a response instruction is fed back to the terminal device.
In some embodiments of the present application, one or more of the plurality of air conditioners may respond to the peak shaver command by adjusting the load on the air conditioners after receiving the peak shaver command.
In some embodiments of the present application, adjusting the load of the air conditioning equipment specifically includes:
adjusting the secondary current of the air conditioning equipment;
adjusting the indoor target set temperature; or
Adjusting the upper limit frequency of the operation of the compressor;
wherein the secondary current refers to the operating current of the secondary side of the frequency converter in the outdoor unit.
In some embodiments of the present application, the gateway obtains a current curve of a secondary current of an air conditioning device when responding to a peak shaving instruction by adjusting the secondary current of the air conditioning device; and judging whether the air conditioning equipment responds to the peak regulation instruction or not according to the current curve and the peak-valley electricity price information.
In some embodiments of the application, the terminal device acquires the electric meter number of the air conditioning device, and uploads electric meter information corresponding to the electric meter number to an electric network end through a cloud platform, so as to judge whether the air conditioning device responds to the peak regulation instruction.
In some embodiments of the present application, the terminal device provides a preset scene, and the peak shaving instruction controls and adjusts a load of the air conditioning device to be operated in the preset scene.
In some embodiments of the present application, the adjusting the load of the air conditioning equipment to be operated in the preset scenario specifically includes:
adjusting the secondary current of the air conditioning equipment;
adjusting the indoor target set temperature; or
Adjusting the upper limit frequency of the operation of the compressor;
wherein the secondary current refers to the operating current of the secondary side of the frequency converter in the air conditioner.
In some embodiments of the present application, the terminal device divides the electricity price in a period of time into a plurality of electricity price levels according to the peak-to-valley electricity price information, and sets the load of the air conditioning device corresponding to the plurality of electricity price levels.
In some embodiments of the present application, when the secondary current of the air conditioner is adjusted to adjust the load size of the air conditioner, the higher the electricity price level is, the smaller the secondary current is.
In some embodiments of the present application, the terminal device sets multiple energy saving levels corresponding to the air conditioning device, and the peak shaving instruction controls and adjusts the load of the air conditioning device to be operated under the multiple energy saving levels.
The application also provides an air conditioning equipment, including as above the electric power peak shaving system, air conditioning equipment receives the peak-to-valley price information from the electric wire netting, and passes through terminal equipment adjusts air conditioning equipment's load.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of an embodiment of an air conditioner according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The power peak shaving system of the application is used for a plurality of air conditioning equipment, and this power peak shaving system includes: cloud platform 1, gateway 2 and a plurality of terminal equipment 3.
The cloud platform 1 is connected with the power grid end and used for obtaining peak-valley electricity price information of the power grid cloud platform of the power grid end, the peak-valley electricity price information reflects peak-valley electricity utilization conditions, and the electricity price changes according to the peak-valley electricity utilization conditions.
A plurality of air conditioning equipment pass through gateway 2 network deployment, therefore, can communicate between these air conditioning equipment each other, and gateway 2 can be used to provide external interface to realize remote control.
For example, the terminal device 3 (for example, a mobile terminal such as a mobile phone installed with an application APP) may be connected to the gateway 2 through the cloud platform 1, and a control instruction implemented after the terminal device 3 of the user receives the peak-valley electricity price information is sent to the gateway 2 through the cloud platform 1 and then sent to each air conditioner through the gateway 2.
The air conditioning equipment is used as a high-power device, is brought into the electric power peak shaving range, and can play a role in immediately shaving the electric power peak shaving of the power grid end.
And when the power supply pressure predicted by the power grid end is larger, the power grid cloud platform of the power grid end sends peak-valley electricity price information in advance.
The cloud platform 1 receives the peak-valley electricity price information and then pushes the peak-valley electricity price information to the terminal equipment of the user.
The control command is a peak shaving command as described above, which includes a low-load operation of the air conditioning equipment when the electricity price is high and a full-load operation of the air conditioning equipment when the electricity price is low.
Be provided with the APP on terminal equipment, the user receives this peak-valley price of electricity information through the APP for the guide user carries out initiative electric power peak shaving, when needs to the air conditioning equipment operation, before the peak value of electricity price comes, opens air conditioning equipment in advance, implements control with the high load, with quick refrigeration/heat, then when the peak value of electricity price comes, indoor temperature has reached to suitable temperature, at this moment, implements control with the low-load to air conditioning equipment.
When a user responds to the peak regulation instruction through the terminal device 3 and executes peak regulation control on the air conditioning device, the terminal device 3 feeds back the response instruction to the power grid cloud platform of the power grid end through the cloud platform 1, and the fact that the user responds and feeds back the peak regulation instruction is shown.
In some embodiments, the user responds to the peak shaving instruction by adjusting the load size of the air conditioner through the terminal device 3, which may be expressed by adjusting the secondary current of the air conditioner, adjusting the indoor target set temperature, adjusting the compressor operation upper limit frequency, and the like.
The secondary current of the operation of the air conditioning equipment can be collected through the gateway 2 to form a trend curve, wherein the secondary current refers to the operation current of the secondary side of the frequency converter in the outdoor unit of the air conditioning equipment.
The secondary current may determine the power consumption of the air conditioner.
If the secondary current of the air conditioning equipment is adjusted to respond to the peak regulation instruction, the secondary current needs to be collected.
Before and after the information of the power price of the lower peak and the valley is sent, whether a trend curve formed by the secondary current is obviously changed or not, namely whether the secondary current is obviously reduced near the peak value of the power price or not, and if the secondary current is obviously reduced near the peak value of the power price, the user responds to the peak regulation instruction.
If the peak regulation instruction is responded by adjusting the indoor target set temperature of the air conditioning equipment, the indoor target set temperature needs to be collected.
Before and after the lower peak-valley electricity price information, whether the indoor target set temperature has obvious change or not, namely, whether the indoor target set temperature obviously rises or not in the cooling mode near the peak value of the electricity price or whether the indoor target set temperature obviously drops or not in the heating mode near the peak value of the electricity price or not, and if the indoor target set temperature obviously drops near the peak value of the electricity price, the peak adjusting instruction is responded by the user.
When the upper operation limit frequency of the compressor is not adjusted, the compressor has a fixed upper operation limit frequency, and the fixed upper operation limit frequency is referred to as a preset upper operation limit frequency for convenience of explanation. If the peak regulation instruction is responded by adjusting the upper limit frequency of the compressor operation, the upper limit frequency of the outdoor unit compressor operation needs to be acquired.
Before and after the peak-valley electricity price information is sent, whether the operation upper limit frequency is obviously changed or not is judged, namely, whether the operation upper limit frequency is obviously reduced or not is judged near the peak value of the electricity price, and if the indoor target set temperature is obviously reduced near the peak value of the electricity price, the user is indicated to respond to the peak regulation instruction.
Certainly, other measures may also be taken to reflect whether the user responds to the peak shaving instruction, for example, an inlet is added at the APP end to collect the electric meter number of the air conditioning equipment, and the electric meter information associated with the electric meter number is reported to the cloud platform 1 and further reported to the power grid cloud platform at the power grid end, and the power grid cloud platform obtains a trend curve of the electric meter information to determine whether the user responds to the peak shaving instruction.
If the user responds to the peak shaving instruction, the terminal equipment can give away a coupon or push a free service, such as filter screen cleaning, deep air conditioning cleaning and the like, to the user, and encourages the user to respond to the peak shaving instruction.
According to the peak-valley electricity price information, the terminal device 3 responds to the peak regulation instruction to enable the air conditioning device to be operated to operate in a preset scene, wherein the preset scene is provided on the APP of the terminal device.
And the peak shaving instruction is used for controlling and adjusting the load of the air conditioning equipment under the preset scene.
In some embodiments, in a preset scenario, adjusting the load of the air conditioner may be represented by adjusting the secondary current of the air conditioner, adjusting the indoor target set temperature, adjusting the upper limit frequency of the compressor operation, and the like.
If the secondary current of the air conditioning equipment is adjusted to respond to the peak regulation instruction under the preset scene, the air conditioning equipment performs control by using the current of which the secondary current is in a certain percentage of the rated current, and the magnitude of the secondary current is inversely proportional to the electricity price. That is, when the electricity price is high, the secondary current of the air conditioner is small, and when the electricity price is low, the secondary current of the air conditioner is large, wherein the rated current is the current corresponding to the case where the air conditioner consumes the rated power at the time of cooling/heating.
The peak-valley electricity price information can be reflected into a peak-valley electricity price curve in time, the peak-valley electricity price curve in a period of time can be selected as a representative and is divided into n (n is a natural number larger than 1) electricity price grades, and n depends on the fluctuation time length of the peak-valley electricity price curve and the peak value and the valley value of the electricity price.
And n electricity price grades, wherein the electricity price is divided into n +1 intervals.
Suppose that the N electricity rate levels correspond to N1, N2, N3, and Nn and that the electricity rate levels sequentially increase, where sequentially increasing the electricity rate levels means that the electricity rates sequentially increase.
Taking the example of the presence of three electricity rate levels N1, N2, and N3 in which the electricity rates sequentially increase, the electricity rate levels are divided into four electricity rate intervals, i.e., a first interval (— infinity, N1), a second interval (N1, N2), a third interval (N2, N3), and a fourth interval (N3, + ∞).
Corresponding to the four sections, the higher the electricity rate level, the smaller the secondary current of the corresponding air conditioning equipment.
When the electricity price is in the first interval, the air conditioning equipment performs control by using a secondary current of 100% of the rated current for example; when the electricity price is in the second interval, the air conditioning equipment performs control by using a secondary current of 80% of the rated current for example; when the electricity price is in the third interval, the air conditioning equipment performs control by using a secondary current of 60% of the rated current, for example; when the electricity price is in the fourth interval, the air conditioner performs control with a secondary current of, for example, 40% of the rated current.
If the indoor target set temperature of the air conditioning equipment is adjusted to respond to the peak regulation instruction in the preset scene, the indoor target set temperature of the air conditioning equipment is controlled in a manner that the indoor target set temperature is in direct proportion to the electricity price in the refrigeration mode.
That is, when the electricity price is high, the indoor target set temperature of the air conditioning equipment is high, and when the electricity price is low, the indoor target temperature is low; the magnitude of the indoor target set temperature of the air conditioner in the heating mode is controlled in inverse proportion to the magnitude of the electricity price. That is, when the electricity price is high, the indoor target set temperature of the air conditioner is low, and when the electricity price is low, the indoor target temperature is high.
Taking as an example the case where there are three electricity rate levels N1, N2, and N3 in which the electricity rates sequentially increase and the air conditioning apparatus is in the cooling mode, the air conditioning apparatus is divided into four electricity rate intervals, that is, a first interval (— ∞, N1), a second interval (N1, N2), a third interval (N2, N3), and a fourth interval (N3, + ∞).
The higher the electricity rate level is, the higher the indoor target set temperature (in the cooling mode) of the air conditioning apparatus corresponding to the four sections is.
When the electricity price is in the first interval, the indoor target set temperature of the air conditioning equipment is controlled at 24 ℃ for example; when the electricity price is in the second interval, the indoor target set temperature of the air conditioning equipment is controlled at 25 ℃ for example; when the electricity price is in the third interval, the indoor target set temperature of the air conditioning equipment is controlled at 26 ℃ for example; when the electricity price is in the fourth interval, the indoor target set temperature of the air conditioner is controlled to be, for example, 27 ℃.
If the peak regulation instruction is responded by adjusting the upper limit frequency of the compressor, the air conditioning equipment implements control by using the frequency with the upper limit frequency of the compressor as a certain percentage of the preset upper limit frequency, and the upper limit frequency of the compressor is implemented in inverse proportion to the electricity price. That is, when the electricity price is high, the upper limit frequency of the operation of the compressor is small, and when the electricity price is low, the upper limit frequency of the operation of the compressor is large.
Taking the example of the presence of three electricity rate levels N1, N2, and N3 in which the electricity rates sequentially increase, the electricity rate levels are divided into four electricity rate intervals, i.e., a first interval (— infinity, N1), a second interval (N1, N2), a third interval (N2, N3), and a fourth interval (N3, + ∞).
Corresponding to four intervals, the higher the electricity price grade, the lower the corresponding compressor operation upper limit frequency.
When the electricity price is in the first interval, the compressor operation upper limit frequency of the air conditioning equipment is controlled at a frequency of 80% of the preset operation upper limit frequency; when the electricity price is in the second interval, the compressor operation upper limit frequency of the air conditioning equipment is controlled at a frequency of 75% of the preset operation upper limit frequency for example; when the electricity price is in the third interval, the compressor operation upper limit frequency of the air conditioning equipment is controlled at a frequency of 70% of the preset operation upper limit frequency for example; when the electricity price is in the fourth interval, the compressor operation upper limit frequency of the air conditioning equipment is controlled at a frequency of, for example, 65% of the preset operation upper limit frequency.
Thus, by grading the electricity prices, the load of the air conditioning equipment is correspondingly controlled according to the electricity price grade of the current electricity price, the control is carried out by using lower secondary current, lower compressor frequency and higher (lower) indoor target set temperature in a cooling mode (heating mode) when the electricity price is high, and the control is carried out by using higher secondary current, higher compressor frequency and lower (higher) indoor target set temperature in the cooling mode (heating mode) when the electricity price is low, so that the suitable temperature is reached before the peak value of the electricity price, and then the load operation is reduced at the peak value and nearby.
According to the peak-valley electricity price information, the terminal device 3 responds to the peak regulation instruction to enable the air conditioning equipment to be operated to implement control under a preset energy-saving level, wherein the energy-saving level is provided on the APP of the terminal device.
And the peak shaving instruction is used for controlling and adjusting the load of the air conditioning equipment under the preset energy-saving level.
In some embodiments, adjusting the load of the air conditioner may be expressed as adjusting the secondary current of the air conditioner, adjusting the indoor target set temperature, adjusting the compressor operation upper limit frequency, and the like, at the energy saving level.
The energy saving level may be executed in combination with a preset scenario, and a plurality of energy saving levels, for example, three energy saving levels, i.e., high, medium, and low, are set for the preset scenario.
And if the secondary current of the air conditioning equipment is adjusted in the preset scene, the control is implemented by combining the preset scene.
For example, the execution relationship of the electricity prices and the secondary current as above may be considered as the execution when the energy saving level is at a certain default level (e.g., a middle energy saving level).
Taking three levels N1, N2, and N3, in which the electricity prices are sequentially increased, as an example, the electricity prices are divided into four electricity price intervals, i.e., a first interval (— infinity, N1), a second interval (N1, N2), a third interval (N2, N3), and a fourth interval (N3, + ∞).
After a user selects a certain energy-saving grade, the secondary current is reduced along with the increase of the electricity price interval, and even the machine is stopped.
When the user selects different energy-saving levels and is in the same electricity price interval, the secondary current is reduced along with the increase of the energy-saving level, and even the machine is stopped.
For example, when the electricity price is in the first interval, the terminal device can cause the air conditioner to operate at a certain energy saving level, for example, when the air conditioner is operated at a high energy saving level, the air conditioner is controlled by a secondary current of 60% of the rated current, when the air conditioner is operated at a medium energy saving level, the air conditioner is controlled by a secondary current of 80% of the rated current, and when the air conditioner is operated at a low energy saving level, the air conditioner is controlled by a secondary current of 100% of the rated current.
And if the indoor target set temperature of the air conditioning equipment in the refrigeration mode is adjusted in the preset scene, the control is implemented by combining the preset scene with the indoor target set temperature.
For example, the execution relationship between the above electricity prices and the indoor target set temperature in the cooling mode may be considered as the execution when the energy saving level is at a certain default level (for example, a middle energy saving level).
When the electricity price is in the first interval, the terminal device can make the air conditioner operate under a certain energy-saving level, for example, when the electricity price is under a high energy-saving level, the control is carried out with the indoor target set temperature of 24 ℃, when the electricity price is under a middle energy-saving level, the control is carried out with the indoor target set temperature of 23 ℃, and when the electricity price is under a low energy-saving level, the control is carried out with the indoor target set temperature of 22 ℃.
And if the upper limit frequency of the operation of the compressor is adjusted in the preset scene, the control is implemented by combining the preset scene.
For example, the execution relationship of the electricity prices and the compressor operation upper limit frequency as above may be considered as the execution when the energy saving level is at a certain default level (for example, a middle energy saving level).
When the electricity price is in the first interval, the terminal device can enable the air conditioner to select to operate under a certain energy-saving level, for example, when the air conditioner is operated under a high energy-saving level, the air conditioner is controlled by the upper limit frequency of the operation of the compressor at a frequency of 80% of the preset upper limit frequency, for example, when the air conditioner is operated under a middle energy-saving level, the air conditioner is controlled by the upper limit frequency of the operation of the compressor at a frequency of 90% of the preset upper limit frequency, for example, when the air conditioner is operated under a low energy-saving level, the air conditioner is controlled by the upper limit frequency of the operation of the compressor at a frequency of 100% of the preset upper limit frequency, for example.
When the price of electricity is at the valley value, APP guide can be used for carrying out functions such as self-cleaning through terminal equipment 3.
Data of a user implementing a preset scene can be collected through the gateway 2, or historical record data of a user implementing a preset scene instruction issued by the APP is acquired from the cloud platform 1, so as to judge whether the user responds to the peak shaving instruction.
Or, an inlet may be added at the APP end to collect the electric meter number of the air conditioning equipment, and report the electric meter information associated with the electric meter number to the cloud platform 1 and then to the power grid cloud platform at the power grid end, where the power grid cloud platform obtains a trend curve of the electric meter information and is used to determine whether the user responds to the adjustment instruction.
If the user responds to the peak shaving instruction, the terminal equipment can give away a coupon or push a free service, such as filter screen cleaning, deep air conditioning cleaning and the like, to the user, and encourages the user to respond to the peak shaving instruction.
In addition, two use scenes of 'capability priority' and 'energy efficiency priority' can be customized for the air conditioning equipment. The air conditioning apparatus may be an air conditioning apparatus in a commercial setting.
The 'capability priority' means that the secondary current is equal to the rated current, and the cooling/heating effect of the air conditioner is preferentially ensured.
"energy efficiency is first" means that the operation is performed by reducing the secondary current with energy saving as a priority.
During peak periods of electricity usage, an "energy efficiency priority" control strategy may be employed, while during valley periods of electricity usage, a "capacity priority" control strategy may be employed. Therefore, the peak clipping and valley filling effects are also realized on the power grid side on the basis of ensuring that the air conditioning equipment meets the use requirements of users.
The electric power peak shaving system is used for the air conditioning equipment, the air conditioning equipment is networked through the gateway 2, the terminal equipment receives peak-valley electricity price information from a power grid cloud platform on the power grid side, and a user can know the peak-valley electricity price information through the terminal equipment.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. An electric power peak shaving system applied to a plurality of air conditioning equipment is characterized by comprising:
the cloud platform is used for receiving peak-valley electricity price information predicted by the power grid end;
the gateway is used for forming a plurality of air conditioning equipment into a wireless local area network and accessing the cloud platform;
and the terminal equipment is wirelessly connected with the cloud platform and can provide and receive the peak-valley electricity price information, so that the terminal equipment sends a peak regulation instruction to one or more of the plurality of air-conditioning equipment according to the peak-valley electricity price information.
2. The electric power peak shaving system according to claim 1, wherein the peak shaving instruction controls the air conditioning equipment to be operated to operate at a high load when a peak value in the peak-to-valley electricity rate information is not reached, and controls the air conditioning equipment to operate at a low load when the peak value in the peak-to-valley electricity rate information is reached.
3. The electric power peak shaving system according to claim 2, wherein one or more of the plurality of air conditioners feed back a response instruction to the terminal device after receiving the peak shaving instruction and responding to the peak shaving instruction.
4. The power peaking system of claim 3, wherein one or more of the plurality of air conditioners respond to the peaking command by adjusting a load of the air conditioners after receiving the peaking command.
5. The power peaking system of claim 4, wherein the load of the air conditioning equipment is adjusted, in particular:
adjusting the secondary current of the air conditioning equipment;
adjusting the indoor target set temperature; or
Adjusting the upper limit frequency of the operation of the compressor;
wherein the secondary current refers to the operating current of the secondary side of the frequency converter in the outdoor unit.
6. The electric power peak shaving system according to claim 1, wherein the terminal device provides a preset scene, and the peak shaving instruction controls and adjusts the load of the air conditioning equipment to be operated under the preset scene.
7. The power peak shaving system according to claim 6, wherein the adjusting of the load of the air conditioning equipment to be operated in the preset scene is specifically:
adjusting the secondary current of the air conditioning equipment;
adjusting the indoor target set temperature; or
Adjusting the upper limit frequency of the operation of the compressor;
wherein the secondary current refers to the operating current of the secondary side of the frequency converter in the air conditioner.
8. The electric power peak shaving system according to claim 7, wherein the terminal device divides electricity prices in a period of time into a plurality of electricity price levels according to the peak-to-valley electricity price information, and sets the size of the load of the air conditioning device corresponding to the plurality of electricity price levels.
9. The electric power peak shaving system according to claim 1, wherein the terminal device sets a plurality of energy saving levels corresponding to the air conditioning equipment, and the peak shaving instruction controls and adjusts the load of the air conditioning equipment to be operated under the plurality of energy saving levels.
10. An air conditioning equipment, characterized by comprising the electric peak shaving system according to any one of claims 1 to 9, receiving peak-to-valley electricity rate information from a power grid terminal, and adjusting a load of the air conditioning equipment through the terminal equipment.
CN202010494966.0A 2020-06-03 2020-06-03 Electric power peak shaving system and air conditioning equipment Pending CN113757930A (en)

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Application publication date: 20211207