CN115133639A - Dual-power intelligent control circuit and method and dual-power intelligent transfer switch - Google Patents

Dual-power intelligent control circuit and method and dual-power intelligent transfer switch Download PDF

Info

Publication number
CN115133639A
CN115133639A CN202110330763.2A CN202110330763A CN115133639A CN 115133639 A CN115133639 A CN 115133639A CN 202110330763 A CN202110330763 A CN 202110330763A CN 115133639 A CN115133639 A CN 115133639A
Authority
CN
China
Prior art keywords
power supply
electric quantity
freezing
power
switched
Prior art date
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.)
Granted
Application number
CN202110330763.2A
Other languages
Chinese (zh)
Other versions
CN115133639B (en
Inventor
徐渡江
於骞
苏朋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Liangxin Electrical Co Ltd
Original Assignee
Shanghai Liangxin Electrical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Liangxin Electrical Co Ltd filed Critical Shanghai Liangxin Electrical Co Ltd
Priority to CN202110330763.2A priority Critical patent/CN115133639B/en
Priority claimed from CN202110330763.2A external-priority patent/CN115133639B/en
Publication of CN115133639A publication Critical patent/CN115133639A/en
Application granted granted Critical
Publication of CN115133639B publication Critical patent/CN115133639B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

The application provides a dual-power intelligent control circuit and method and a dual-power intelligent transfer switch, and relates to the technical field of low-voltage appliances. The circuit includes: the system comprises a selector switch, an electric quantity detection module, an electric quantity freezing module and a controller; one end of the change-over switch is connected with a common power supply or a standby power supply, and the input end of the electric quantity detection module is connected with the other end of the change-over switch; the output end of the electric quantity detection module is connected with the first input end of the electric quantity freezing module, the electric quantity freezing module judges whether the power supply meets a first freezing condition or not, a freezing instruction is output, the output end of the electric quantity freezing module is connected with the input end of the controller, the output end of the controller is connected with the control end of the change-over switch, the power supply to be switched is in a unfreezing state, a power supply change-over instruction is output according to the freezing instruction, the change-over switch is controlled to be switched on and off, the power supply of the power supply is disconnected, and the power supply of the power supply to be switched is switched on. The power consumption cost of using the power grid to supply power for the power consumption customer can be reduced, and the power consumption of the power consumption customer is not influenced.

Description

Dual-power intelligent control circuit and method and dual-power intelligent transfer switch
Technical Field
The invention relates to the technical field of low-voltage appliances, in particular to a dual-power intelligent control circuit and method and a dual-power intelligent transfer switch.
Background
In order to control the electricity consumption of the electricity consumption customers, the power grid company generally implements an electricity price gradient policy. With the rapid development of new energy power generation technology, how to combine power grid power supply and new energy power supply to reduce the power consumption cost of power consumption customers and ensure that the power consumption of the power consumption customers is not affected is a technical problem which needs to be solved urgently.
In the existing scheme, the electric quantity generated by new energy power generation is generally monitored, and when the electric quantity is greater than or equal to a preset electric quantity threshold value, a new energy power supply mode is adopted for supplying power; and when the electric quantity is less than the preset electric quantity threshold value, switching to a power grid power supply mode for supplying power.
Although the method can save the power consumption of the power grid to a certain extent, the power consumption of the power grid is not detected, and the situation that the power consumption of the power grid exceeds the power consumption range of the power price gradient quotation cannot be avoided.
Disclosure of Invention
The invention aims to provide a dual-power intelligent control circuit, a dual-power intelligent control method and a dual-power intelligent change-over switch aiming at the defects in the prior art, so that the power consumption cost of a power consumption customer for supplying power by using a power grid is reduced, and the power consumption of the power consumption customer is not influenced.
In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:
in a first aspect, an embodiment of the present application provides a dual-power intelligent control circuit, which includes: the system comprises a selector switch, an electric quantity detection module, an electric quantity freezing module and a controller;
one end of the change-over switch is electrically connected with a common power supply or a standby power supply, the input end of the electric quantity detection module is electrically connected with the other end of the change-over switch so as to detect the output electric quantity of a power supply, and the power supply is any one of the common power supply and the standby power supply;
the output end of the electric quantity detection module is electrically connected with the first input end of the electric quantity freezing module, so that the electric quantity freezing module performs electric quantity superposition calculation according to the output electric quantity to obtain the total output electric quantity of the power supply, whether the power supply meets a first freezing condition or not is judged according to the total output electric quantity and an electric quantity freezing value corresponding to the power supply, and if the power supply meets the first freezing condition, a power supply switching instruction is output;
the output end of the electric quantity freezing module is electrically connected with the input end of the controller, the output end of the controller is electrically connected with the control end of the change-over switch, and the controller is further used for receiving a thawing instruction for a power supply to be switched, so that the controller outputs a power supply change-over instruction according to the freezing instruction when the power supply to be switched is in a thawing state, and controls the change-over switch to be switched on and off, so that the power supply of the power supply is switched off, and the power supply of the power supply to be switched on; the power supply to be switched is another power supply except the power supply in the common power supply and the standby power supply.
Optionally, the dual-power intelligent control circuit further includes: and the input device is electrically connected with the second input end of the electric quantity freezing module so as to configure the electric quantity freezing value corresponding to the common power supply and the electric quantity freezing value corresponding to the standby power supply through the input device.
Optionally, the input device is: and the touch screen is also used for displaying unfreezing reminding information of the power supply to be switched when the power supply to be switched is in an unfreezing state.
Optionally, the electric quantity freezing module is further configured to determine whether power supply time of the power supply meets a second freezing condition, and output the freezing instruction if the power supply meets the second freezing condition; the second freezing condition is that the power supply time of the power supply is within a preset time range.
Optionally, the touch screen is disposed on the motherboard where the controller is located.
Optionally, the electric quantity detection module is installed on a motherboard where the controller is located, or outside the motherboard.
In a second aspect, an embodiment of the present application further provides a dual-power intelligent control method, which is applied to the dual-power intelligent control circuit described in any of the foregoing embodiments, where the method includes:
detecting the output electric quantity of the power supply; the power supply is any one of a common power supply and a standby power supply;
performing electric quantity superposition calculation according to the output electric quantity to obtain the total output electric quantity, and judging whether the power supply meets a first freezing condition or not according to the total output electric quantity and an electric quantity freezing value corresponding to the power supply;
if the power supply meets the first freezing condition, outputting a freezing instruction;
when the power supply to be switched is in a unfreezing state, controlling a change-over switch to carry out on-off switching according to the freezing instruction so as to cut off the power supply of the power supply and switch on the power supply of the power supply to be switched; the power supply to be switched is another power supply except the power supply in the common power supply and the standby power supply.
Optionally, the method further includes:
judging whether the power supply time of the power supply meets a second freezing condition, and outputting the freezing instruction if the power supply meets the second freezing condition; the second freezing condition is that the power supply time of the power supply is within a preset time range.
Optionally, the method further includes:
and clearing the total output electric quantity according to the freezing instruction.
Optionally, if the dual-power intelligent control circuit further includes: an input device electrically connected to a second input of the charge freezing module, the method further comprising:
and configuring an electric quantity freezing value corresponding to the common power supply and an electric quantity freezing value corresponding to the standby power supply.
Optionally, if the input device is: touch screen, the method further includes:
and if the power supply to be switched is in an unfrozen state, displaying unfrozen reminding information of the power supply to be switched on the touch screen.
In a third aspect, an embodiment of the present application further provides a dual-power intelligent transfer switch, including: a common power supply, a standby power supply and the dual-power intelligent control circuit in any of the above embodiments; one end of a change-over switch in the dual-power intelligent control circuit is electrically connected with the common power supply or the standby power supply; the common power supply is a mains supply, and the standby power supply is one of a mains supply, a wind power generation power supply, a photovoltaic power generation power supply or a solar power generation power supply.
The beneficial effect of this application is:
the application provides a dual supply intelligent control circuit, method and dual supply intelligent change over switch, wherein, dual supply intelligent control circuit includes: the device comprises a controller, an electric quantity detection module, an electric quantity freezing module and a selector switch; one end of the change-over switch is electrically connected with a common power supply or a standby power supply, and the input end of the electric quantity detection module is electrically connected with the other end of the change-over switch so as to detect the output electric quantity of the power supply; the output end of the electric quantity detection module is electrically connected with the first input end of the electric quantity freezing module, so that the electric quantity freezing module performs electric quantity superposition calculation according to the output electric quantity to obtain the total output electric quantity of the power supply, judges whether the power supply meets a first freezing condition or not according to the total output electric quantity and an electric quantity freezing value corresponding to the power supply, and outputs a freezing instruction if the power supply meets the first freezing condition; the output end of the electric quantity freezing module is electrically connected with the input end of the controller, the output end of the controller is electrically connected with the control end of the change-over switch, so that the controller outputs a power supply change-over instruction according to the freezing instruction when the power supply to be changed is in a unfreezing state, the change-over switch is controlled to be switched on and off, the power supply of the power supply is disconnected, and the power supply of the power supply to be changed is switched on. Through the method provided by the application, the common power supply and the standby power supply can be switched according to the set electric quantity freezing value and the power supply unfreezing instruction, so that after the power consumption of the power supply reaches the power consumption range of the lowest power price in the power price gradient policy, the power supply is switched, and the power consumption of the power consumption customer is not influenced while the power consumption cost of the power grid power supply is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first dual-power intelligent control circuit provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a second dual-power intelligent control circuit provided in the embodiment of the present application;
fig. 3 is a schematic structural diagram of a third dual-power intelligent control circuit provided in the embodiment of the present application;
fig. 4 is a schematic flowchart of a dual power supply intelligent control method according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. 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 application.
In the description of the present application, it should be noted that if the terms "upper", "lower", etc. are used to indicate an orientation or a positional relationship based on an orientation or a positional relationship shown in the drawings or an orientation or a positional relationship which is usually placed when the product of the application is used, the description is merely for convenience of description and simplification of the application, but the indication or suggestion that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as a limitation of the application.
Furthermore, the terms first, second and the like in the description and in the claims, as well as in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.
Fig. 1 is a schematic structural diagram of a first dual-power intelligent control circuit provided in an embodiment of the present application; as shown in fig. 1, the dual-power intelligent control circuit includes: the device comprises a selector switch 11, an electric quantity detection module 12, an electric quantity freezing module 13 and a controller 14.
One end of the switch 11 is electrically connected to the common power source 21 and the standby power source 22, and the input end of the electric quantity detection module 12 is electrically connected to the other end of the switch 11 to detect the output electric quantity of the power supply, where the power supply is any one of the common power source 21 and the standby power source 22.
The output end of the electric quantity detection module 12 is electrically connected with the first input end of the electric quantity freezing module 13, so that the electric quantity freezing module 13 performs electric quantity superposition calculation according to the output electric quantity to obtain the total output electric quantity of the power supply, judges whether the power supply meets a first freezing condition or not according to the total output electric quantity and the electric quantity freezing value corresponding to the power supply, and outputs a freezing instruction if the power supply meets the first freezing condition.
The output end of the electric quantity freezing module 13 is electrically connected with the input end of the controller 14, the output end of the controller 14 is electrically connected with the control end of the change-over switch 11, so that the controller 14 outputs a power supply change-over instruction according to the freezing instruction when the power supply to be changed over is in a unfreezing state, and controls the change-over switch 11 to be switched over in a closed mode, so that the power supply of the power supply is switched off, and the power supply of the power supply to be changed over is switched on; the power source to be switched is another power source than the power source of the usual power source 21 and the standby power source 22.
Specifically, after the power supply of the power supply is turned on, a thawing command is sent to the controller 14 within a preset power supply time to indicate that the power supply to be switched is in a thawing state. The defrosting instruction may be automatically triggered by the controller 14 within a preset power supply time, or may be generated by a client through a defrosting button disposed on the controller 14, or may be sent through a wireless communication device received through a wireless communication module disposed on the controller 14, which is not limited in this application. The preset power supply time is less than the estimated power supply time of the power supply, and the estimated power supply time is the time when the power consumption of the power load reaches the preset power requirement.
The freezing condition is used for indicating that the output electric quantity of the power supply has reached the preset electric quantity requirement, and the unfreezing instruction is used for indicating that the power supply to be switched meets the power supply requirement and can supply power through the power supply to be switched. For example, according to the local electricity price gradient policy, the preset electricity requirement is a minimum electricity price in the electricity price gradient policy or a maximum electricity consumption corresponding to the electricity price receivable by the customer, and the freezing condition indicates that the output quantity of the power supply has reached the minimum electricity price or the maximum electricity consumption corresponding to the electricity price receivable by the customer.
The working principle of the dual-power intelligent control circuit provided by the embodiment of the application is explained by taking a power supply as a common power supply 21 and a power supply to be switched as a standby power supply 22 as an example.
The switch 11 switches on the power supply of the common power source 21, the switch 11 switches off the power supply of the standby power source 22, and the electric quantity detection module 12 is electrically connected with the common power source 21 through the switch 11 to detect the output electric quantity of the common power source 21. The electric quantity freezing module 13 performs electric quantity superposition calculation on the output electric quantity to obtain the total output electric quantity of the common power supply 21, the electric quantity freezing value Q1 of the common power supply 21 is preset by the electric quantity freezing module 13, and the electric quantity freezing module 13 is electrically connected with the electric quantity detection module 12 so as to judge whether the common power supply 21 meets a first freezing condition or not according to the total output electric quantity of the common power supply 21 and the electric quantity freezing value Q1 of the common power supply 21.
If the total output electric quantity of the common power supply 21 is greater than or equal to the electric quantity freezing value Q1 of the common power supply 21, it is determined that the common power supply 21 satisfies the first freezing condition, and the electric quantity freezing module 13 sends a freezing instruction to the controller 14. When the controller 14 detects that the backup power supply 22 is in a thawing state, it outputs a power supply switching instruction according to the received freezing instruction, and controls the switch 11 to switch on and off, so that the power supply of the normal power supply 21 is switched off, the power supply of the backup power supply 22 is switched on, and the power supply is performed by the backup power supply 22.
After the power supply is switched to the backup power supply 22, the power detection module 12 detects the output power of the backup power supply 22, and the power freezing module 13 determines whether the total output power of the backup power supply 22 is greater than or equal to the power freezing value Q2.
If the total amount of output power of the backup power supply 22 is greater than or equal to the power freezing value Q2, it is determined that the backup power supply 22 satisfies the first freezing condition, and the power freezing module 13 sends a freezing instruction to the controller 14. When detecting that the normal power supply 21 is in the thawing state, the controller 14 outputs a power supply switching instruction according to the received freezing instruction, controls the switch 11 to be switched on and off, disconnects the power supply of the standby power supply 22, switches the power supply of the normal power supply 21 on, and supplies power through the normal power supply 21.
If the power supply is the standby power supply 22, the power supply to be switched is the common power supply 21, and the working principle is the same as that of the power supply being the common power supply 21 and the power supply to be switched being the standby power supply 22, which is not described herein again.
In an alternative embodiment, if the controller 14 detects that the power source to be switched is not unfrozen, the switch 11 will not switch to the power source to be switched, and the power supply is continued through the power source.
In an alternative embodiment, the charge detection module 12 and the charge freezing module 13 may be integrated within the controller 14 or may be independent of the controller 14.
Specifically, if a customer requires that the structural volume of the dual-power intelligent control circuit is small, the electric quantity detection module 12 and the electric quantity freezing module 13 can be installed on a main board where the controller 14 is located, so as to reduce the structural volume of the dual-power intelligent control circuit; if the customer does not have the requirement of the structural volume, the power detection module 12 and the power freezing module 13 can be installed outside the main board where the controller 14 is located.
It should be noted that the common power supply provided in the embodiment of the present application is a power grid, the standby power supply may be a standby power grid, or may be a generator, and the generator may generate power through new energy sources, such as solar energy, photovoltaic energy, wind power, and the like.
The embodiment of the application provides a dual supply intelligent control circuit includes: the device comprises a controller, an electric quantity detection module, an electric quantity freezing module and a selector switch; one end of the change-over switch is electrically connected with the common power supply and the standby power supply, and the input end of the electric quantity detection module is electrically connected with the other end of the change-over switch so as to detect the output electric quantity of the power supply; the output end of the electric quantity detection module is electrically connected with the first input end of the electric quantity freezing module, so that the electric quantity freezing module performs electric quantity superposition calculation according to the output electric quantity to obtain the total output electric quantity of the power supply, judges whether the power supply meets a first freezing condition or not according to the total output electric quantity and an electric quantity freezing value corresponding to the power supply, and outputs a freezing instruction if the power supply meets the first freezing condition; the output end of the electric quantity freezing module is electrically connected with the input end of the controller, the output end of the controller is electrically connected with the control end of the change-over switch, so that the controller outputs a power supply change-over instruction according to the freezing instruction when the power supply to be changed is in a unfreezing state, the change-over switch is controlled to be switched on and off, the power supply of the power supply to be changed is switched on when the power supply to be changed is switched off. Through the circuit that this application provided, can freeze the value and power unfreeze the instruction according to the electric quantity of setting for and switch power and stand-by power supply commonly used to make after power consumption when power supply reaches the power consumption scope of minimum price of electricity in the price of electricity gradient policy, switch power supply, so that when reducing the power consumption cost that power consumption customer used the electric wire netting power supply, guaranteed again that power consumption customer's power consumption is not influenced.
On the basis of the foregoing embodiments, an embodiment of the present application further provides a dual-power intelligent control circuit, and fig. 2 is a schematic structural diagram of a second dual-power intelligent control circuit provided in the embodiment of the present application, as shown in fig. 2, the dual-power intelligent control circuit further includes: an input device 15.
Input device 15 is electrically connected to a second input terminal of power freezing module 13, so as to configure power freezing value Q1 corresponding to common power supply 21 and power freezing value Q2 corresponding to standby power supply 22 through input device 15.
Specifically, the electric quantity freezing value can be configured according to the requirements of customers. Input device 15 is electrically connected to a second input terminal of power freezing module 13 to configure or modify power freezing value Q1 for regular power supply 21 and power freezing value Q2 for standby power supply 22. The input device 15 may be, for example, a keyboard.
In an alternative embodiment, in addition to configuring or modifying the power freezing value Q1 corresponding to the common power supply 21 and the power freezing value Q2 corresponding to the standby power supply 22, the input device 15 is electrically connected to the controller 14 for sending a thawing command to the controller 14 to indicate to the controller 14 that the power supply to be switched is in a thawing state.
The dual-power intelligent control circuit that this application embodiment provided still includes input device, and the second input that the electric quantity freezes the module is connected to the input device electricity to the electric quantity that corresponds through input device configuration power commonly used freezes the value, and the electric quantity that stand-by power supply corresponds freezes the value. Through the scheme that this application embodiment provided, can set up the nimble electric quantity value that freezes to the price of electricity gradient policy setting in different customer areas to satisfy different customer's demand, guarantee to switch power supply after power supply's power consumption reaches the power consumption scope of minimum price of electricity in the price of electricity gradient policy, so that when reducing the power consumption cost that power consumption customer used the electric wire netting power supply, guaranteed again that power consumption customer's power consumption is not influenced.
On the basis of the above embodiment, this application embodiment still provides a dual supply intelligent control circuit, and in the dual supply intelligent control circuit that this application embodiment provided, input device 15 is the touch-control screen, and the touch-control screen still is used for when waiting to switch the power and being in the state of unfreezing, shows the warning information that unfreezes of waiting to switch the power.
Specifically, if the input device 15 is a touch screen, the power freezing value Q1 corresponding to the common power supply 21 and the power freezing value Q2 corresponding to the standby power supply 22 may be configured or modified through the touch screen.
The touch screen is also provided with a common power supply unfreezing button and a standby power supply unfreezing button so as to send a unfreezing instruction to the controller 14 through the touch screen.
The touch screen is further configured to display unfreezing reminding information of the power source to be switched on the touch screen when the controller 14 receives the power source switching instruction sent by the electric quantity freezing module 13 but does not receive the unfreezing instruction, that is, the power source to be switched is in an unfrozen state, so as to remind a client that the unfreezing instruction for the power source to be switched is not sent.
In an optional implementation manner, the touch screen is disposed on the motherboard where the controller is located.
Specifically, in order to save the structural volume of the dual-power intelligent control circuit, the touch screen can be arranged on a main board where the controller 14 is located, and the touch screen can be separated from the controller 14.
The embodiment of the application provides a dual supply intelligent control circuit, input device are the touch-control screen, and the touch-control screen is used for not unfreezing the warning information that waits to switch power supply when the controller does not receive the instruction of unfreezing except that being used for disposing the electric quantity that power supply commonly used corresponds and freezing the value with the electric quantity that stand-by power supply corresponds. Through the control circuit that this application embodiment provided, realize that the electric quantity freezes the visual of value configuration to and unfreeze the visual of reminding, just use the customer.
On the basis of any one of the above embodiments, the embodiment of the present application further provides a dual power supply intelligent control circuit, when the electric quantity freezing module 13 outputs the freezing instruction, the electric quantity freezing module 13 clears the total amount of the output electric quantity according to the freezing instruction.
Specifically, since the common power supply 21 and the standby power supply 22 share one electric quantity freezing module 13 through the change-over switch 11, after the power supply is switched to the power supply to be switched for power supply, the electric quantity freezing module 13 needs to perform electric quantity superposition calculation on the output electric quantity of the power supply to be switched, in order to obtain the total output electric quantity of the power supply to be switched, the total output electric quantity of the power supply obtained by the electric quantity freezing module through superposition calculation can be cleared according to the freezing instruction output by the electric quantity freezing module 13, so as to restart the superposition calculation on the output electric quantity of the power supply to be switched.
The dual-power intelligent control circuit provided by the embodiment of the application clears the total output electric quantity of the power supply obtained by superposition calculation of the electric quantity freezing module according to the freezing instruction. Through the control circuit provided by the embodiment of the application, when the power supply is switched, the total output electric quantity obtained by superposition calculation of the electric quantity freezing module is reset, the electric quantity freezing module can conveniently carry out next electric quantity superposition calculation, the superposition calculation accuracy of the electric quantity freezing module is improved, and therefore the control precision of the dual-power intelligent control circuit is improved.
On the basis of any one of the above embodiments, the embodiment of the present application further provides a dual-power intelligent control circuit, where the electric quantity freezing module 13 is further configured to determine whether the power supply time of the power supply meets a second freezing condition, and output a freezing instruction if the power supply meets the second freezing condition; the second freezing condition is that the power supply time of the power supply is within a preset time range.
Specifically, in the peak period of power utilization, in order to avoid unstable power supply of the power supply, the power supply to be supplied can be adopted in the peak period of power utilization for power supply. The electric quantity freezing module 13 outputs a freezing instruction by judging whether the power supply time of the power supply is within a preset time range, if the power supply time of the power supply is within the preset time range, the power supply meets a second freezing condition, the controller 14 outputs a power supply switching instruction according to the freezing instruction when the power supply to be switched is in a unfreezing state, and controls the switch 11 to be switched on and off so that the power supply of the power supply is switched off and the power supply of the power supply to be switched is switched on. For example, the predetermined time range may be peak hours, such as 18:00-22:00, during the evening hours of electricity usage.
According to the dual-power intelligent control circuit provided by the embodiment of the application, the electric quantity freezing module is further used for judging whether the power supply time of the power supply meets a second freezing condition or not, and outputting a freezing instruction if the power supply meets the second freezing condition; the second freezing condition is that the power supply time of the power supply is within a preset time range. Through the control circuit that this application embodiment provided, can switch to waiting to switch the power from power supply and supply power in the peak period of power consumption, avoid using power supply to cause the unstable condition of power supply.
In an alternative embodiment, the controller 14 is powered by a DC power supply. For example, the dc power supply may be a battery module.
In another alternative embodiment, ac power of the power grid or the generator is converted into dc power by the ac/dc power module to supply power to the controller 14; the embodiment of the present application further provides a dual-power intelligent control circuit, fig. 3 is a schematic structural diagram of a third dual-power intelligent control circuit provided in the embodiment of the present application, as shown in fig. 3, the dual-power intelligent control circuit further includes: a power supply module 16.
The other end of the switch 11 is electrically connected to the power module 16, and the power module 16 is also electrically connected to the power supply terminal of the controller 14.
Specifically, the power module 16 is an ac/dc power module that converts ac power of a power grid or a generator into dc power that can be used by the controller 14, and the power module 16 is connected to the other end of the switch 11. When the changeover switch 11 controls the on/off of the power supply of the normal power supply 21 and the off/on of the power supply of the backup power supply 22, the power supply module 16 converts the input voltage of the normal power supply 21 into an operating voltage that can operate the controller 14. When the changeover switch 11 controls the supply of the backup power supply 22 to be on and the supply of the normal power supply 21 to be off, the power supply module 16 converts the input voltage of the backup power supply 22 into an operating voltage that can operate the controller 14. For example, if the common power source 21 and the backup power source 22 are power grids, the input voltage is the mains voltage; if the normal power supply 21 and the backup power supply 22 are generators, the input voltage is a generated voltage. The operating voltage of the controller 14 is typically 5V.
On the basis of any one of the above embodiments, an embodiment of the present application further provides a dual-power intelligent control circuit, as shown in fig. 3, the dual-power intelligent control circuit further includes: a sampling circuit 17.
The input end of the sampling circuit 17 is electrically connected with the other end of the change-over switch 11 and is used for collecting output parameters output by the power supply; an output terminal of the sampling circuit 17 is electrically connected to an input terminal of the controller 14 to output the output parameter.
Specifically, the sampling circuit 17 sends the acquired output parameters output by the power supply to the controller 14, and the controller 14 judges whether the output parameters meet circuit protection conditions according to the output parameters, and if so, controls the switch to be switched off, and protects the dual-power intelligent control circuit and the relay action mechanism.
The output parameters collected by the sampling circuit 17 may be voltage parameters, frequency parameters, phase differences, and three-phase unbalance degrees.
By detecting the current parameter or the voltage parameter, the overcurrent of the power supply when the power supply outputs alternating current to the relay action mechanism is avoided; by detecting the frequency parameter, the output frequency of the power supply is prevented from being too low or too high when the power supply outputs alternating current to the relay action mechanism.
In an alternative embodiment, as shown in fig. 1, the main power source 21 and the standby power source 22 are connected to the ac input end of the relay mechanism through a contactor in a three-phase four-wire manner, where the three-phase four-wire means A, B, C, N, that is, three phase wires A, B, C and a neutral wire N of three-phase power. The normal power supply 21 and the standby power supply are electrically connected to one end of the changeover switch 11 through three phase lines A, B, C and a neutral line N, respectively.
By detecting the phase difference, the three phase lines A, B, C of the power supply and the relay action mechanism which are electrically connected are prevented from being connected reversely; by detecting the three-phase unbalance degree parameters, the adverse effect on the power supply and the relay action mechanism caused by the three-phase unbalance degree abnormity is reduced.
It should be noted that, if the standby power supply 22 has a power supply failure during the power supply process, at this time, the controller 14 may directly output a power supply switching instruction without triggering the power supply switching instruction according to the freezing instruction and the thawing state of the common power supply 21, so as to control the switch 11 to perform on/off switching, so as to disconnect the power supply of the standby power supply 22, connect the power supply of the common power supply 21, and supply power through the common power supply 21, so as to ensure normal power supply. For example, the power failure of the backup power source 22 may be an output overvoltage, an output undervoltage, an output frequency abnormality, or a three-phase unbalance abnormality.
On the basis of any of the foregoing embodiments, an embodiment of the present application further provides a dual-power intelligent control method, and fig. 4 is a schematic flow chart of the dual-power intelligent control method provided in the embodiment of the present application, and as shown in fig. 4, the method includes:
s11: and detecting the output electric quantity of the power supply.
Specifically, power supply is any one of common power supply and stand-by power supply, common power supply and stand-by power supply are connected the electric quantity detection module through change over switch electricity, change over switch switches the closure in common power supply and stand-by power supply, and the power that change over switch closure corresponds is power supply.
If the power supply of the common power supply is switched on and the power supply of the standby power supply is switched off by the change-over switch, detecting the output electric quantity of the common power supply by the electric quantity detection module; if the power supply of the standby power supply is switched on by the change-over switch and the power supply of the common power supply is switched off, the output electric quantity of the standby power supply is detected by the electric quantity detection module.
S12: and according to the output electric quantity, carrying out electric quantity superposition calculation to obtain the total output electric quantity, and judging whether the power supply meets a first freezing condition or not according to the total output electric quantity and the electric quantity freezing value corresponding to the power supply.
Specifically, the electric quantity freezing module is connected with the electric quantity detection module to receive the output electric quantity of the power supply detected by the electric quantity detection module, and the electric quantity freezing module performs superposition calculation on the output electric quantity of the power supply to obtain the total output electric quantity of the power supply. The electric quantity freezing module is internally provided with an electric quantity freezing value corresponding to the common power supply and an electric quantity freezing value corresponding to the standby power supply, and if the common power supply is a power supply, the electric quantity freezing module judges whether the common power supply meets a first freezing condition or not according to the total output electric quantity of the common power supply and the electric quantity freezing value corresponding to the common power supply. If the standby power supply is a power supply, the electric quantity freezing module judges whether the standby power supply meets a first freezing condition or not according to the total output electric quantity of the standby power supply and the electric quantity freezing value corresponding to the standby power supply.
S13: and if the power supply meets the first freezing condition, outputting a freezing instruction.
Specifically, if the electric quantity freezing module judges that the total output electric quantity of the power supply is greater than or equal to the electric quantity freezing value corresponding to the power supply, the power supply meets a first freezing condition, and the electric quantity freezing module sends a freezing instruction to the controller.
If the electric quantity freezing module judges that the output electric quantity of the power supply is smaller than the electric quantity freezing value corresponding to the power supply, the power supply does not meet the first freezing condition, and the power supply maintains power supply.
S14: and outputting a power supply switching instruction according to the freezing instruction when the power supply to be switched is in a unfreezing state, and controlling a switching switch to carry out on-off switching so as to cut off the power supply of the power supply and switch on the power supply of the power supply to be switched.
Specifically, after the controller receives the freezing instruction, whether the power source to be switched is in a unfreezing state needs to be detected, and when the power source to be detected is in the unfreezing state, the controller outputs a power source switching instruction to control the switching switch to be switched from the power source to be switched on and off, at the moment, the power supply of the power source is switched off, and the power supply of the power source to be switched on is switched on.
In an optional implementation mode, the controller judges whether the power supply to be switched is in a unfreezing state or not by detecting whether a unfreezing command is received or not.
After the power supply is switched to the power supply to be switched for power supply, the electric quantity freezing module performs superposition calculation on the total output electric quantity of the power supply to be switched, if the total output electric quantity of the power supply to be switched is larger than or equal to the electric quantity freezing value of the power supply to be switched, the fact that the power supply to be switched meets a first freezing condition is judged, and the electric quantity freezing module sends a freezing instruction to the controller. When the controller receives the freezing instruction, whether the power supply is in a unfreezing state or not needs to be detected, and when the power supply is in the unfreezing state, the power supply switching instruction is output, the switching switch is controlled to be switched on and off, so that the power supply of the power supply to be switched is switched off, the power supply of the power supply is switched on, and the power supply is supplied through the power supply.
In a first alternative embodiment, the method further comprises:
and clearing the total output electric quantity according to the freezing instruction.
Specifically, the power supply and the power supply to be switched share one electric quantity freezing module through the change-over switch, after the power supply is switched to the power supply to be switched for power supply, the electric quantity freezing module needs to perform superposition calculation on the total output electric quantity of the power supply to be switched, in order to calculate the total output electric quantity of the power supply to be switched, the total output electric quantity of the power supply superposed by the electric quantity detection module can be reset according to a freezing instruction, so that the total output electric quantity of the power supply to be switched is superposed again.
In a second alternative embodiment, if the dual-power intelligent control circuit further comprises: the input device is electrically connected with the second input end of the electric quantity freezing module, and the dual-power intelligent control method further comprises the following steps:
and configuring an electric quantity freezing value corresponding to the common power supply and an electric quantity freezing value corresponding to the standby power supply.
Specifically, the input device is electrically connected to the second input end of the electric quantity freezing module, so as to configure or modify the electric quantity freezing value corresponding to the common power supply and the electric quantity freezing value corresponding to the standby power supply according to the customer requirements.
Optionally, if the input device is: the touch screen and the dual-power intelligent control method further comprise the following steps:
and if the power supply to be switched is in an unfrozen state, displaying unfrozen reminding information of the power supply to be switched on the touch screen.
Specifically, if the controller detects that the power supply to be switched is in an unfrozen state, the controller judges that the power supply to be switched cannot supply power at present, prompts a client to confirm whether the power supply to be switched can supply power or not by displaying unfrozen prompting information of the power supply to be switched on the touch screen, and if yes, sends a command that the power supply to be switched is in the unfrozen state to the controller.
For example, the sending of the defrosting command for the power source to be switched by the client to the controller may be sending the defrosting command through a defrosting button arranged on the controller 14, or sending the defrosting command to a wireless communication module arranged on the controller 14 through a wireless communication device, which is not limited in this application.
The intelligent control method for the double power supplies, provided by the embodiment of the application, comprises the steps of detecting the output electric quantity of a power supply, carrying out electric quantity superposition calculation according to the output electric quantity to obtain the total output electric quantity, and judging whether the power supply meets a first freezing condition or not according to the total output electric quantity and the electric quantity freezing value corresponding to the power supply; if the power supply meets the first freezing condition, outputting a freezing instruction; when the power supply to be switched is in a unfreezing state, the controller outputs a power supply switching instruction according to the freezing instruction, and controls the switching switch to carry out on-off switching so as to cut off the power supply of the power supply and switch on the power supply of the power supply to be switched. Through the method provided by the application, the common power supply and the standby power supply can be switched according to the set electric quantity freezing value and the unfreezing state of the power supply to be switched, so that the power supply is switched after the power consumption of the power supply reaches the power consumption range of the lowest power price in the power price gradient policy, and the power consumption cost of a power consumption customer for supplying power by using a power grid is reduced, and meanwhile, the power consumption of the power consumption customer is not influenced.
On the basis of any one of the above embodiments, the embodiment of the present application further provides a dual power supply intelligent control method, which may further include: judging whether the power supply time of the power supply meets a second freezing condition, and outputting a freezing instruction if the power supply meets the second freezing condition; the second freezing condition is that the power supply time of the power supply is within a preset time range.
Specifically, whether the power supply time of the power supply is within a preset time range or not is judged through the electric quantity freezing module, and if the power supply time of the power supply is within the preset time range, the power supply meets a second freezing condition and outputs a freezing instruction.
On the basis of any one of the above embodiments, the embodiment of the present application further provides a dual-power intelligent transfer switch, which includes: a common power supply, a standby power supply and the dual-power intelligent control circuit in any embodiment; one end of a change-over switch in the dual-power intelligent control circuit is electrically connected with a common power supply or a standby power supply; the common power supply is a commercial power supply, and the standby power supply is green energy.
By way of example, the green energy source may be a wind energy source, a hydroelectric energy source, a photovoltaic energy source, a tidal energy source, or the like.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A dual-power intelligent control circuit, comprising: the device comprises a selector switch, an electric quantity detection module, an electric quantity freezing module and a controller;
one end of the change-over switch is electrically connected with a common power supply or a standby power supply, the input end of the electric quantity detection module is electrically connected with the other end of the change-over switch so as to detect the output electric quantity of a power supply, and the power supply is any one of the common power supply and the standby power supply;
the output end of the electric quantity detection module is electrically connected with the first input end of the electric quantity freezing module, so that the electric quantity freezing module performs electric quantity superposition calculation according to the output electric quantity to obtain the total output electric quantity of the power supply, judges whether the power supply meets a first freezing condition or not according to the total output electric quantity and an electric quantity freezing value corresponding to the power supply, and outputs a freezing instruction if the power supply meets the first freezing condition;
the output end of the electric quantity freezing module is electrically connected with the input end of the controller, the output end of the controller is electrically connected with the control end of the change-over switch, so that the controller outputs a power supply change-over instruction according to the freezing instruction when a power supply to be changed over is in a unfreezing state, and controls the change-over switch to be switched on and off, so that the power supply of the power supply to be changed over is switched off, and the power supply of the power supply to be changed over is switched on; the power supply to be switched is another power supply except the power supply in the common power supply and the standby power supply.
2. The dual-power intelligent control circuit of claim 1, further comprising: and the input device is electrically connected with the second input end of the electric quantity freezing module so as to configure the electric quantity freezing value corresponding to the common power supply and the electric quantity freezing value corresponding to the standby power supply through the input device.
3. The dual-power intelligent control circuit of claim 2, wherein the input device is: and the touch screen is also used for displaying unfreezing reminding information of the power supply to be switched when the power supply to be switched is in an unfreezing state.
4. The dual-power intelligent control circuit of claim 1, wherein the power freezing module is further configured to determine whether a power supply time of the power supply meets a second freezing condition, and output the freezing instruction if the power supply meets the second freezing condition; the second freezing condition is that the power supply time of the power supply is within a preset time range.
5. A dual-power intelligent control method, applied to the dual-power intelligent control circuit of any one of claims 1-4, the method comprising:
detecting the output electric quantity of the power supply; the power supply is any one of a common power supply and a standby power supply;
performing electric quantity superposition calculation according to the output electric quantity to obtain the total output electric quantity, and judging whether the power supply meets a first freezing condition or not according to the total output electric quantity and an electric quantity freezing value corresponding to the power supply;
if the power supply meets the first freezing condition, outputting a freezing instruction;
when the power supply to be switched is in a unfreezing state, outputting a power supply switching instruction according to the freezing instruction, and controlling a switching switch to carry out closed switching so as to cut off the power supply of the power supply and switch on the power supply of the power supply to be switched; the power supply to be switched is another power supply except the power supply in the common power supply and the standby power supply.
6. The dual-power intelligent control method of claim 5, further comprising:
judging whether the power supply time of the power supply meets a second freezing condition or not, and outputting the freezing instruction if the power supply meets the second freezing condition; the second freezing condition is that the power supply time of the power supply is within a preset time range.
7. The dual-power intelligent control method of claim 5 or 6, further comprising:
and clearing the total output electric quantity according to the freezing instruction.
8. The dual-power intelligent control method of claim 5, wherein if the dual-power intelligent control circuit further comprises: an input device electrically connected to the second input of the charge freezing module, the method further comprising:
and configuring an electric quantity freezing value corresponding to the common power supply and an electric quantity freezing value corresponding to the standby power supply.
9. The dual-power intelligent control method of claim 8, wherein if the input device is: a touch screen, the method further comprising:
and if the power supply to be switched is in an unfrozen state, displaying unfrozen reminding information of the power supply to be switched on the touch screen.
10. A dual-power intelligent transfer switch is characterized by comprising a common power supply, a standby power supply and the dual-power intelligent control circuit of any one of the claims 1-4; one end of a change-over switch in the dual-power intelligent control circuit is electrically connected with the common power supply or the standby power supply;
the common power supply is a mains supply, and the standby power supply is a green energy source.
CN202110330763.2A 2021-03-26 Dual-power intelligent control circuit and method and dual-power intelligent change-over switch Active CN115133639B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110330763.2A CN115133639B (en) 2021-03-26 Dual-power intelligent control circuit and method and dual-power intelligent change-over switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110330763.2A CN115133639B (en) 2021-03-26 Dual-power intelligent control circuit and method and dual-power intelligent change-over switch

Publications (2)

Publication Number Publication Date
CN115133639A true CN115133639A (en) 2022-09-30
CN115133639B CN115133639B (en) 2024-07-16

Family

ID=

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160034460A (en) * 2014-09-19 2016-03-30 데스틴파워 주식회사 Energy storage system with fuction of emergency power supply
CN106055940A (en) * 2016-05-24 2016-10-26 宇龙计算机通信科技(深圳)有限公司 Application freezing management method and apparatus, and terminal
CN106327359A (en) * 2016-09-22 2017-01-11 国网上海市电力公司 Electricity consumption mode analysis-based meter centralized reading data anomaly judgment method
CN206559134U (en) * 2017-03-15 2017-10-13 中国神华能源股份有限公司 Stand-by power supply discharge control device
CN110266100A (en) * 2019-06-19 2019-09-20 戴姆勒股份公司 Power supply switch circuit and power-supply switching method
CN111200271A (en) * 2020-02-28 2020-05-26 上海良信电器股份有限公司 Circuit breaker and power supply control method thereof
CN215221827U (en) * 2021-03-26 2021-12-17 上海良信电器股份有限公司 Dual-power intelligent control circuit and dual-power intelligent transfer switch

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160034460A (en) * 2014-09-19 2016-03-30 데스틴파워 주식회사 Energy storage system with fuction of emergency power supply
CN106055940A (en) * 2016-05-24 2016-10-26 宇龙计算机通信科技(深圳)有限公司 Application freezing management method and apparatus, and terminal
CN106327359A (en) * 2016-09-22 2017-01-11 国网上海市电力公司 Electricity consumption mode analysis-based meter centralized reading data anomaly judgment method
CN206559134U (en) * 2017-03-15 2017-10-13 中国神华能源股份有限公司 Stand-by power supply discharge control device
CN110266100A (en) * 2019-06-19 2019-09-20 戴姆勒股份公司 Power supply switch circuit and power-supply switching method
CN111200271A (en) * 2020-02-28 2020-05-26 上海良信电器股份有限公司 Circuit breaker and power supply control method thereof
CN215221827U (en) * 2021-03-26 2021-12-17 上海良信电器股份有限公司 Dual-power intelligent control circuit and dual-power intelligent transfer switch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
赏星耀 等: "双电源智能自动切换系统的研究", 机电工程, vol. 23, no. 07, 28 July 2006 (2006-07-28), pages 18 - 19 *

Similar Documents

Publication Publication Date Title
AU2022259772B2 (en) System and methods for creating dynamic nano grids and for aggregating electric power consumers to participate in energy markets
JP5792824B2 (en) Power supply system, distributed power supply system, management device, and power supply control method
US11139681B2 (en) Smart switching panel for secondary power supply
US20110051325A1 (en) Power supply system
EP2744063B1 (en) Energy management device, energy management system, and program
US20130093242A1 (en) Smart power supply system for minimizing power consumption during device standby
EP3206274B1 (en) Automatic recovery control
CN201533194U (en) Automatic on/off switching electric appliance
CN110456286B (en) Control circuit and method for self-detecting power failure
KR100665540B1 (en) All igbt ups system for input/output three phases
CN105431996A (en) Uninterruptible power supply control
CN115133639A (en) Dual-power intelligent control circuit and method and dual-power intelligent transfer switch
CN115133639B (en) Dual-power intelligent control circuit and method and dual-power intelligent change-over switch
CN201286011Y (en) Low voltage motor protection controller
IL303432A (en) Energy management system
CN210167803U (en) Voltage sag protector for contactor
JP6114279B2 (en) Energy management device and control method of energy management device
KR100653284B1 (en) Digital uninterruptible power supply system for three phases
CN215221827U (en) Dual-power intelligent control circuit and dual-power intelligent transfer switch
CN217307337U (en) UPS power supply circuit and bottle blowing machine device
CN217789307U (en) Distribution box
CN117996934A (en) Power supply switching device and using method thereof
CN114094690A (en) Detection system and method for standby battery
CN112769217A (en) Circuit breaker based on battery standby power supply system and circuit breaker control method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant