CN114294703B - Capacity-increasing-free electric heating system - Google Patents
Capacity-increasing-free electric heating system Download PDFInfo
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- CN114294703B CN114294703B CN202210033409.8A CN202210033409A CN114294703B CN 114294703 B CN114294703 B CN 114294703B CN 202210033409 A CN202210033409 A CN 202210033409A CN 114294703 B CN114294703 B CN 114294703B
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Abstract
The embodiment of the invention discloses a capacity-increasing-free electric heating system, which realizes the simultaneous use of electric heating and domestic electricity under the condition of not increasing capacity under the designed capacity of the domestic electricity and electricity. The electric heating system can avoid electric power capacity increase by an electric heating project, improve the utilization rate of the existing power grid capacity of the electric heating project, save the high cost required by the electric power capacity increase, reduce the construction difficulty of the electric heating and improve the universality of the electric heating. Low cost, high reliability and convenient implementation.
Description
Technical Field
The embodiment of the invention relates to the technical field of electric power, in particular to a capacity-increasing-free electric heating system.
Background
The power capacity of the domestic electricity is generally designed according to the living area of a user, and each household is generally 6-10 kW. The heating power of the electric heating system is about 60W per square meter, for example, 100 square meters, and about 6kW is needed in one household. When domestic electricity is directly used for electric heating, the load is easily overloaded, and tripping or other safety accidents are caused. The life power utilization time is irregular, and the high-power utilization time is not long. And because the building and the indoor facilities have strong heat inertia, the indoor temperature can be kept constant for a long time when the building and the indoor facilities are not heated, and therefore, the heating can be carried out by adopting an intermittent heating mode. The electric heating can be realized under the condition of no capacity increase by using the heating power and the living power in a peak-off mode.
In the prior art, power utilization peak shifting is realized by RS485 or wireless control of the on-off of a controller. The RS485 mode needs independent wiring, so that the construction difficulty is increased invisibly, and the construction cost is higher; the wireless mode controller is high in cost and is easy to generate mutual conflict or be interfered by environment in the communication process. Therefore, a capacity-increase-free electric heating system which is low in cost, high in reliability and convenient to implement is a subject of considerable research.
Disclosure of Invention
Therefore, the embodiment of the invention provides a capacity-increase-free electric heating system, which is used for solving the problems that the existing mode for realizing electric heating under the condition of no capacity increase has construction difficulty and high construction cost, and mutual conflict or environmental interference is easy to generate in the communication process.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a capacity-increase-free electric heating system comprises a server, a collector, a cloud end controller, a plurality of intelligent controllers and a plurality of heating devices, wherein the server is in wireless connection with the collector, the collector is in wireless connection with the cloud end controller and each intelligent controller, the cloud end controller is connected with the plurality of intelligent controllers, and each intelligent controller is connected with one heating device;
the collector is used for acquiring the power limit value parameter from the server side and sending the power limit value parameter to the cloud side controller; the cloud end controller is used for monitoring domestic power and heating power and controlling the on-off of the power supply of each intelligent controller according to the acquired power limit value parameter; when the intelligent controller is in a power-on state, the server controls whether the intelligent controller is started or not through the collector, and the intelligent controller is used for controlling the on-off of each heating device.
Further, the cloud-end controller is also used for acquiring the current of the household appliance collected by the current transformer.
Further, the cloud end controller comprises a main control module, a first power measurement module, a second power measurement module, a wireless communication module and a power control module, wherein the first power measurement module, the second power measurement module, the wireless communication module and the power control module are connected with the main control module, the first power measurement module is used for measuring the power of domestic electricity, the second power measurement module is used for measuring the power of heating electricity, the wireless communication module is used for being in communication connection with the collector, and the power control module is used for controlling the on-off of the power of each intelligent controller according to instructions of the main control module.
Furthermore, the cloud-end controller further comprises a power input module and a liquid crystal display module, wherein the power input module and the liquid crystal display module are connected with the main control module, the power input module is used for supplying power to each module, and the liquid crystal display module is used for displaying measured related data and set parameters of the cloud-end controller.
Further, the power limit parameters include a total power threshold, an upper household power limit, and a lower household power limit.
Further, the cloud controller is specifically configured to:
firstly, judging whether switching-off or switching-on control exists, if switching-off, disconnecting the power supply of each intelligent controller, not heating, and using for stopping heating control in non-heating seasons; if the intelligent controller is switched on, the intelligent controller is powered on for on-site heating test or debugging;
secondly, judging whether the sum of the power of the domestic electricity and the power of the heating electricity exceeds a set total power threshold;
if the total power exceeds the total power threshold, the power supply of each intelligent controller is immediately and selectively disconnected, the sum of the power of the domestic electricity and the power of the heating electricity is reduced to be below the total power threshold, then whether the domestic electricity power of the user exceeds the set upper limit of the household power is judged, whether the domestic electricity power of the user is started in a delayed mode is decided, if the domestic electricity power of the user does not exceed the upper limit of the household power, a delayed starting time limit is set, and if the domestic electricity power of the user exceeds the upper limit of the household power, the power supply of each intelligent controller is disconnected;
if the total power threshold is not exceeded, judging whether the delay timing is 0, if not, supplying power to keep the previous state, if so, judging whether the domestic power of the user exceeds the set user power lower limit, if so, supplying power to keep the previous state, and if not, switching on the power supply of each intelligent controller to supply power.
Furthermore, the server is specifically used for distributing the simultaneous opening rate of the intelligent controllers in each building according to the design capacity of the cell transformer and the indoor average temperature of each building for heating, and distributing the opening time of the corresponding intelligent controller according to the temperature of each room in each building, so as to realize the heating without capacity increase under the voltage transformer in the cell.
Further, the intelligent controller is specifically used for setting the allowable heating time period of each intelligent controller according to the rated power of the heating device controlled by the intelligent controller in the same room, and reducing the heating power in the same heating time period.
The embodiment of the invention has the following advantages:
according to the capacity-increase-free electric heating system provided by the embodiment of the invention, under the condition of not carrying out capacity increase under the electric power design capacity of domestic electricity, the simultaneous use of electric heating and domestic electricity is realized. The electric heating system can avoid electric power capacity increase by an electric heating project, improve the utilization rate of the existing power grid capacity of the electric heating project, save the high cost required by the electric power capacity increase, reduce the construction difficulty of the electric heating and improve the universality of the electric heating. Low cost, high reliability and convenient implementation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a schematic structural diagram of an electric heating system without capacitance increase provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a cloud-end controller in a capacity-increase-free electric heating system according to embodiment 1 of the present invention;
fig. 3 is a control schematic diagram of a cloud-end controller in a capacity-increase-free electric heating system according to embodiment 1 of the present invention;
fig. 4 is a schematic control logic diagram of a cloud-end controller in a capacity-increase-free electric heating system according to embodiment 1 of the present invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
Example 1
As shown in fig. 1, this embodiment provides a capacity-increase-free electric heating system, and this system includes server, collector, cloud end controller, a plurality of intelligent control ware and a plurality of heating equipment, server and collector wireless connection, collector and cloud end controller and the equal wireless connection of each intelligent control ware, and a plurality of intelligent control ware are connected to cloud end controller, and a heating equipment is connected respectively to every intelligent control ware.
The collector is used for obtaining power limit value parameters from the server side and sending the power limit value parameters to the cloud end controller, and the power limit value parameters comprise a total power threshold, a household power upper limit and a household power lower limit. And the cloud end controller is used for monitoring the domestic power consumption and the heating power and controlling the on-off of the power supply of each intelligent controller according to the acquired power limit value parameter. When the intelligent controller is in a power-on state, the server controls whether the intelligent controller is started or not through the collector. Whether the intelligent controller is started or not in the power-on state is determined according to the control parameters issued by the server and the current indoor temperature. The collector can send a control command or parameter of the server end to the intelligent controller in a wireless mode, and reads data and states collected by the intelligent controller. The collector performs data interaction with the server in an uplink mode through a 4G or 5G mode and the like, and performs data interaction with the managed cloud end controller and the intelligent controller in a downlink mode through a wireless mode.
The intelligent controller is used for controlling the on-off of each heating device, and when the intelligent controller is started, the heating devices start to work. The intelligent controllers correspond to the heating devices one by one, and one intelligent controller and one heating device are generally installed in one room, and if a user has 5 rooms, 5 sets of intelligent controllers and heating devices need to be installed.
In this embodiment, the cloud-end controller is further configured to obtain the current of the household appliance collected by the current transformer.
In this embodiment, as shown in fig. 2, the cloud-end controller includes a main control module, a first power measurement module, a second power measurement module, a wireless communication module, and a power control module, where the first power measurement module is used to measure power of domestic electricity, the second power measurement module is used to measure power of heating electricity, the wireless communication module is used to be in communication connection with the collector, receive a parameter or command sent by the collector, transmit the parameter or command to the main control module, the main control module processes the parameter or command and sends response data, the power control module is used to connect power supplies of various intelligent controllers managed under the power control module, and the power supply of each intelligent controller is controlled according to an instruction of the main control module. The cloud-end controller further comprises a power input module and a liquid crystal display module, the power input module is connected with the main control module and used for supplying power to the modules, and the liquid crystal display module is used for displaying measured related data and setting parameters of the cloud-end controller.
The control principle of the cloud-end controller is shown in fig. 3. The cloud end controller monitors the domestic power and the heating power respectively, and controls the power supply of each intelligent controller respectively according to parameters such as a total power threshold, a household power upper limit and a household power lower limit issued by the collector. When the total power exceeds the set power value, the heating power is cut off, the domestic power is preferentially ensured to be used, and the indoor power is ensured not to exceed the indoor power design capacity. The power supply control mode improves the reliability of control and reduces the construction difficulty and the construction cost.
In this embodiment, the control logic of the cloud-end controller is specifically as shown in fig. 4:
firstly, judging whether switching-off or switching-on control exists, if switching-off, disconnecting the power supply of each intelligent controller, not heating, and using for stopping heating control in non-heating seasons; if the intelligent controller is switched on, the intelligent controller is powered on for on-site heating test or debugging;
secondly, judging whether the sum of the power of the domestic electricity and the power of the heating electricity exceeds a set total power threshold;
if the total power exceeds the total power threshold, the power supply of each intelligent controller is immediately and selectively disconnected, the sum of the power of the domestic electricity and the power of the heating electricity is reduced to be below the total power threshold, then whether the domestic electricity power of the user exceeds the set upper limit of the household power is judged, whether the domestic electricity power of the user is started in a delayed mode is decided, if the domestic electricity power of the user does not exceed the upper limit of the household power, a delayed starting time limit is set, and if the domestic electricity power of the user exceeds the upper limit of the household power, the power supply of each intelligent controller is disconnected;
if the total power threshold is not exceeded, judging whether the delay timing is 0, if not, supplying power to keep the previous state, if so, judging whether the domestic power of the user exceeds the set user power lower limit, if so, supplying power to keep the previous state, and if not, switching on the power supply of each intelligent controller to supply power.
The server is specifically used for distributing the simultaneous opening rate of the intelligent controllers in each building according to the design capacity of the community transformer and the indoor average temperature of each building for heating, and distributing the opening time of the corresponding intelligent controller according to the temperature of each room in each building, so that the capacity-increaseless heating under the transformer in the community is realized.
The simultaneous opening rate of the intelligent controller is controlled by a server, if a cell transformer is 1000kW, the intelligent controller is generally used according to 70% of power, if 5 buildings are in the cell, the simultaneous opening power of each building is distributed according to the floor area ratio, if the floor area ratio of each building is 20%, 20%, 15%, 15%, 30%, the opening power is 1000 × 70% × 20%, 140kW, the. And then, distributing the simultaneous opening rate of each household according to the percentage of the average indoor temperature of the previous day indoors, wherein the percentage is n1, n2, n3, and the percentage of household 1 is 140 Xn 1, … …
The opening time is calculated according to the weather condition, the building heat-insulating structure, the heating temperature and the laying power. The on-time is only distributed, if 3 temperature controllers are arranged in a house, the power of each temperature controller is 1kW, the calculated on-time of each temperature controller in the house is 6 hours on the day, the distributed simultaneous on-power is 2.5kW, then the house can only simultaneously turn on 2 temperature controllers, and the heat can be stopped for 1 hour according to 2 hours of heating, and the three temperature controllers can be controlled in a staggered mode, for example, the three temperature controllers are defined as K1, K2 and K3, K1 and K2 are turned on at 1 hour, K2 and K3 are turned on at 1 hour, K1 and K3 are turned on at 3 hour, K1 and K2 are turned on at 4 hour, K1 and K2 are turned on at … …
The intelligent controller is specifically used for setting the allowable heating time period of each intelligent controller according to the rated power of the heating equipment controlled by the intelligent controller in the same room, and reducing the heating power in the same heating time period. The control of the heating period is independent of the cloud-end controller, and is performed by the intelligent controller.
The capacity-increasing-free electric heating system provided by the embodiment can avoid electric capacity increasing by an electric heating project, improve the utilization rate of the existing electric network capacity of the electric heating project, save the high cost required by the electric capacity increasing, reduce the construction difficulty of the electric heating and improve the universality of the electric heating.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (6)
1. The capacity-increasing-free electric heating system is characterized by comprising a server, a collector, a cloud end controller, a plurality of intelligent controllers and a plurality of heating devices, wherein the server is in wireless connection with the collector, the collector is in wireless connection with the cloud end controller and each intelligent controller, the cloud end controller is connected with the intelligent controllers, and each intelligent controller is connected with one heating device;
the collector is used for acquiring the power limit value parameter from the server side and sending the power limit value parameter to the cloud side controller; the cloud end controller is used for monitoring domestic power and heating power and controlling the on-off of the power supply of each intelligent controller according to the acquired power limit value parameter; when the intelligent controller is in a power-on state, the server controls whether the intelligent controller is started or not through the collector, and the intelligent controller is used for controlling the starting and the stopping of each heating device;
the power limit parameters comprise a total power threshold, an upper household power limit and a lower household power limit;
the cloud controller is specifically configured to:
firstly, judging whether switching-off or switching-on control exists, if switching-off, disconnecting the power supply of each intelligent controller, not heating, and using for stopping heating control in non-heating seasons; if the intelligent controller is switched on, the intelligent controller is powered on for on-site heating test or debugging;
secondly, judging whether the sum of the power of the domestic electricity and the power of the heating electricity exceeds a set total power threshold;
if the total power exceeds the total power threshold, the power supply of each intelligent controller is immediately and selectively disconnected, the sum of the power of the domestic electricity and the power of the heating electricity is reduced to be below the total power threshold, then whether the domestic electricity power of the user exceeds the set upper limit of the household power is judged, whether the domestic electricity power of the user is started in a delayed mode is decided, if the domestic electricity power of the user does not exceed the upper limit of the household power, a delayed starting time limit is set, and if the domestic electricity power of the user exceeds the upper limit of the household power, the power supply of each intelligent controller is disconnected;
if the total power threshold is not exceeded, judging whether the delay timing is 0, if not, supplying power to keep the previous state, if so, judging whether the domestic power of the user exceeds the set user power lower limit, if so, supplying power to keep the previous state, and if not, switching on the power supply of each intelligent controller to supply power.
2. The capless electric heating system of claim 1, wherein the cloud-end controller is further configured to obtain the current of the household appliance collected by the current transformer.
3. The capacity-increase-free electric heating system of claim 1, wherein the cloud-end controller comprises a main control module, a first power measurement module, a second power measurement module, a wireless communication module and a power control module, the first power measurement module, the second power measurement module, the wireless communication module and the power control module are connected with the main control module, the first power measurement module is used for measuring power of domestic electricity, the second power measurement module is used for measuring power of heating electricity, the wireless communication module is used for being in communication connection with the collector, and the power control module is used for controlling the on-off of a power supply of each intelligent controller according to an instruction of the main control module.
4. The system of claim 3, wherein the cloud-side controller further comprises a power input module and a liquid crystal display module, the power input module is connected with the main control module, the power input module is used for supplying power to the modules, and the liquid crystal display module is used for displaying measured related data and setting parameters of the cloud-side controller.
5. The capacity-increase-free electric heating system of claim 1, wherein the server is specifically configured to allocate the simultaneous turn-on rate of the intelligent controller in each building according to the design capacity of the cell transformer and the average indoor temperature of each building heating, and allocate the turn-on time of the corresponding intelligent controller according to the temperature of each room in each building, so as to realize capacity-increase-free heating under the voltage transformer in the cell.
6. The capacity-free electric heating system as claimed in claim 1, wherein the intelligent controllers are further configured to set an allowable heating period of each intelligent controller according to a rated power of the heating device controlled by the intelligent controller in the same room, and to reduce the heating power in the same heating period.
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