CN111106668B - Power supply control method and power supply control device - Google Patents
Power supply control method and power supply control device Download PDFInfo
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- CN111106668B CN111106668B CN202010001310.0A CN202010001310A CN111106668B CN 111106668 B CN111106668 B CN 111106668B CN 202010001310 A CN202010001310 A CN 202010001310A CN 111106668 B CN111106668 B CN 111106668B
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Abstract
The application discloses a power supply control method and a power supply control device, and relates to the field of power supply control. The power supply control method comprises the following steps: detecting whether the power grid is in a normal state; when the power grid is in a normal state, respectively controlling the new energy source interface and the power grid interface to be communicated with the load, and forbidding the output function of the second interface so that the new energy source power supply equipment and the power grid supply power for the load in a complementary manner; and when the power grid is in an abnormal state, controlling the new energy source interface and the power grid interface to be disconnected from the load, starting the input function of the first interface, and starting the output function of the second interface, so that the new energy source power supply equipment can supply power to the load through the uninterruptible power supply. The power supply control method provided by the scheme of the application can increase the reliability of a power supply system.
Description
Technical Field
The present disclosure relates to the field of power supply control, and in particular, to a power supply control method and a power supply control device.
Background
The maintenance of the safe and stable operation of the power supply system is an important responsibility of each power supply enterprise, whether the power supply system can maintain the safe and stable operation is directly related to the quality of the power supply quantity provided by the power supply enterprise, and once the power supply system fails, the power failure of a user can be caused, so that the normal life and work of the user are influenced, the service level of the power supply enterprise is reduced, and once the power supply system fails in a large range, the power failure in a large range in a city can be caused, the panic of people is caused, and the social security is further influenced.
The power supply system in the prior art mainly supplies power to the load by the power grid, and when the power supply of the power grid is abnormal, the load supplied by the corresponding power grid is powered off, so that the power supply system in the prior art is poor in reliability, and when the power supply of the power grid is abnormal, the work and life of a user are correspondingly influenced.
Disclosure of Invention
The application provides a power supply control method and a power supply control device, which can increase the reliability of a power supply system.
In order to achieve the above technical effect, a first aspect of the present application provides a power supply control method applied to a power supply system, where the power supply system includes: electric power net, new forms of energy power supply unit and uninterrupted power source, above-mentioned uninterrupted power source includes: the system comprises a first interface configured with an input function and a second interface configured with an input function and an output function, wherein the first interface is connected with a new energy interface, and the second interface is respectively connected with the new energy interface, a power grid interface and a load, wherein the new energy interface is a power supply interface of the new energy power supply equipment, and the power grid interface is a power supply interface of the power grid;
the power supply control method comprises the following steps:
detecting whether the power grid is in a normal state;
if the power grid is in a normal state, the method comprises the following steps: respectively controlling the new energy source interface and the power grid interface to be communicated with the load, and disabling the output function of the second interface, so that the new energy source power supply equipment and the power grid supply power for the load in a complementary manner;
if the power grid is in an abnormal state: and controlling the new energy source interface and the power grid interface to be disconnected with the load, starting the input function of the first interface, and starting the output function of the second interface, so that the new energy source power supply equipment can supply power to the load through the uninterruptible power supply.
Based on the first aspect of the present application, in a first possible implementation manner, when the power grid is in a normal state, the power supply control method further includes:
and enabling the input function of the second interface.
Based on the first aspect of the present application, in a second possible implementation manner, when the power grid is in an abnormal state, the power supply control method further includes:
detecting the power supply state of the new energy power supply equipment to the load;
if the power supply state of the new energy power supply equipment to the load is an abnormal state, the method comprises the following steps: and disabling the input function of the first interface and enabling the output function of the second interface so that the uninterrupted power supply can supply power to the load.
Based on the first aspect of the present application, or the first possible implementation manner of the first aspect of the present application, or the second possible implementation manner of the first aspect of the present application, in a third possible implementation manner, the respectively controlling the new energy interface and the power grid interface to communicate with the load specifically includes: closing a first switch and a second switch to control the communication between the new energy interface and the power grid interface and the load;
the controlling the new energy interface and the power grid interface to be disconnected from the load specifically includes: disconnecting the first switch and the second switch to control the new energy interface and the power grid interface to be disconnected from the load;
one end of the first switch is connected to the new energy interface and the first interface, and the other end of the first switch is connected to the power grid interface and one end of the second switch;
one end of the second switch is connected to the other end of the first switch and the power grid interface, and the other end of the second switch is connected to the second interface and the load.
A second aspect of the present application provides a power supply control device, including:
a first detection unit for detecting whether the power grid is in a normal state;
a control unit, configured to control the new energy interface and the power grid interface to communicate with the load and disable an output function of the second interface when the power grid is in a normal state, so that the new energy power supply device and the power grid supply the load complementarily;
the control unit is further configured to, when the power grid is in an abnormal state, control the new energy interface and the power grid interface to be disconnected from the load, enable the input function of the first interface, and enable the output function of the second interface, so that the new energy power supply device supplies power to the load through the uninterruptible power supply.
Based on the second aspect of the present application, in a first possible implementation manner, the control unit is further configured to:
and enabling the input function of the second interface.
Based on the second aspect of the present application, in a second possible implementation manner, the power supply control device further includes:
the second detection unit is used for detecting the power supply state of the new energy power supply equipment to the load;
the control unit is further configured to:
and when the power supply state of the new energy power supply equipment to the load is an abnormal state, the input function of the first interface is forbidden, and the output function of the second interface is started, so that the uninterrupted power supply supplies power to the load.
Based on the second aspect of the present application or the first possible implementation manner of the second aspect of the present application, in a third possible implementation manner, the power supply control device further includes: a first switch and a second switch;
the control unit is specifically configured to:
closing the first switch and the second switch to control the new energy interface and the power grid interface to communicate with the load;
disconnecting the first switch and the second switch to control the new energy interface and the power grid interface to be disconnected from the load;
one end of the first switch is connected to the new energy interface and the first interface, and the other end of the first switch is connected to the power grid interface and one end of the second switch;
one end of the second switch is connected to the other end of the first switch and the power grid interface, and the other end of the second switch is connected to the second interface and the load.
A third aspect of the present application provides a power supply control apparatus including a memory, a processor, and a computer program stored in the memory and executable on the processor; the processor implements the steps of the power supply control method when executing the computer program.
A fourth aspect of the present application provides a computer-readable storage medium storing a computer program; the computer program realizes the steps of the power supply control method when being executed by a processor.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
therefore, according to the scheme of the application, whether the power grid is in a normal state or not is detected, when the power grid is in the normal state, the new energy source interface and the power grid interface are respectively controlled to be communicated with the load, the output function of the second interface is forbidden, and when the power grid is in an abnormal state, the new energy source interface and the power grid interface are controlled to be disconnected from the load, the input function of the first interface is enabled, and the output function of the second interface is enabled. On one hand, when the power grid is in a normal state, the new energy interface and the power grid interface are controlled to be communicated with the load, and the output function of the second interface is forbidden, so that the new energy power supply equipment and the power grid can supply power for the load in a complementary manner, new energy is fully utilized, and resources are saved; on the other hand, when the power grid is in an abnormal state, the new energy source power supply device can supply power to the load to increase the reliability of the power supply system by controlling the new energy source interface and the power grid interface to be disconnected from the load, enabling the input function of the first interface and enabling the output function of the second interface.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the embodiments or the description of the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic flow chart diagram illustrating an embodiment of a power supply control method provided herein;
FIG. 2 is a schematic structural diagram of an embodiment of a power supply control device provided in the present application;
FIG. 3 is a schematic structural diagram of an embodiment of a power supply control device provided in the present application;
FIG. 4 is a schematic circuit diagram of an embodiment of a power supply control device provided by the present application;
fig. 5 is a schematic structural diagram of an embodiment of a power supply control device provided in the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The technical solutions in the embodiments of the present application are clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.
Example one
As shown in fig. 1, in an embodiment of the present application, the power supply control method provided by the present application may increase reliability of a power supply system, where the power supply control method is applied to the power supply system, and the power supply system includes: electric power net, new forms of energy power supply unit and uninterrupted power source, above-mentioned uninterrupted power source includes: the system comprises a first interface configured with an input function and a second interface configured with an input function and an output function, wherein the first interface is connected with a new energy interface, and the second interface is respectively connected with the new energy interface, a power grid interface and a load, wherein the new energy interface is a power supply interface of the new energy power supply equipment, and the power grid interface is a power supply interface of the power grid;
in this embodiment, the input function of the first interface and the input function and the output function of the second interface may be controlled by switches.
The power supply control method comprises the following steps:
step 101, detecting whether a power grid is in a normal state;
optionally, the detecting whether the power grid is in a normal state may be implemented by: the method comprises the steps of measuring the quality of alternating current power supplied to a user power receiving end by a power grid by an online power quality measuring device, judging the power grid to be in a normal state when various indexes of the quality of the alternating current power supplied to the user power receiving end by the power grid are measured and analyzed to be in accordance with preset indexes, and judging the power grid to be in an abnormal state when various indexes of the quality of the alternating current power supplied to the user power receiving end by the power grid are measured and analyzed to be not in accordance with the preset indexes. Wherein, each index comprises one or more than two of the following indexes: the power supply frequency deviation, the power supply voltage fluctuation and flicker value and the allowable unbalance degree of the power supply three-phase voltage.
When step 101 detects that the power grid is in a normal state, the process proceeds to step 102, and when step 101 detects that the power grid is in an abnormal state, the process proceeds to step 103.
102, respectively controlling a new energy source interface and the power grid interface to be communicated with a load, and forbidding an output function of a second interface so that the new energy source power supply equipment and the power grid supply power for the load in a complementary manner;
in an embodiment of the present application, the respectively controlling the new energy interface and the power grid interface to communicate with the load specifically includes: the new energy power supply system is controlled to be connected with the load after being connected with the power grid in parallel, so that the voltage of the new energy power supply system and the voltage of the power grid can be complemented and then the load is supplied with power, and the load can still receive stable voltage when the new energy power supply system or the power grid breaks down.
In an embodiment of the present application, the new energy power supply system includes: a photovoltaic power station, a hydroenergy power station, a wind power station, a geothermal power station, an ocean power station, or a tidal power station;
taking photovoltaic power generation as an example, an electric energy quality measuring device is installed at a grid-connected point of a photovoltaic power station to be measured, the electric energy quality measuring device is connected to the grid-connected point of the photovoltaic power station, and cutoff frequencies of a measuring voltage transformer and a measuring current transformer are not less than 400 Hz; measuring short-time flicker value PstMeets the national standard of 'fluctuation and flicker of electric energy quality and voltage' (GB/T12326-2008), and the measuring method can be usedStarting from the minimum power of the continuous normal operation of the photovoltaic power station, taking 10% of the total rated power of the inverter allocated to the photovoltaic power station as an interval, and respectively testing the short-time flicker value P for 10min twice in each intervalst。
Optionally, when the power grid is in a normal state, the power supply control method further includes:
enabling the input function of the second interface;
in the embodiment of the present application, the enabling of the input function of the second interface specifically includes: and when the power grid is in a normal state, starting the input function of the second interface, controlling the new energy power supply system to realize voltage complementation with the power grid, and then charging the battery of the uninterruptible power supply through the input function of the second interface.
Further, if the power grid is in a normal state, the method may wait for a preset time period or immediately return to step 101, at this time, the power grid continues to supply power to the load, and the power grid may be controlled to charge the uninterruptible power supply.
And 103, controlling the new energy source interface and the power grid interface to be disconnected with the load, starting the input function of the first interface, and starting the output function of the second interface, so that the new energy source power supply equipment can supply power to the load through the uninterruptible power supply.
In the embodiment of the application, when the power grid is in an abnormal state, the new energy interface and the power grid interface are controlled to be disconnected from the load, the input function of the first interface is started, and the output function of the second interface is started, so that the electric energy output by the new energy power supply system can be reduced by the alternating current converter and then output to the uninterruptible power supply, and the uninterruptible power supply processes the input electric energy and then supplies power to the load. The uninterruptible power supply is a system device that connects a storage battery with a host and converts direct current into commercial power through a module circuit such as a host inverter, and the uninterruptible power supply has at least the following functions: monitoring the output voltage to ensure the stability of the output voltage; performing input power factor compensation on an input end of the uninterruptible power supply, and suppressing input current harmonics; adjusting and compensating the difference value of the input voltage and the output voltage; and the functions of charging and floating charging the battery are completed.
Optionally, when the power grid is in an abnormal state, the power supply control method further includes:
detecting the power supply state of the new energy power supply equipment to the load;
if the power supply state of the new energy power supply equipment to the load is an abnormal state, the method comprises the following steps: and disabling the input function of the first interface and enabling the output function of the second interface so that the uninterrupted power supply can supply power to the load.
In an embodiment of the present invention, when the power supply state of the new energy power supply device to the load is an abnormal state, the uninterruptible power supply may be controlled to sequentially perform rectification processing and inversion processing on the electric energy output by the new energy power supply system, and when the voltage output by the uninterruptible power supply is not consistent with the voltage required by the load, the uninterruptible power supply may be controlled to sequentially perform rectification processing, inversion processing, and transformation processing on the electric energy output by the new energy power supply system.
In an embodiment of the present application, the supplying power to the load by the uninterruptible power supply includes:
and when the voltage output by the uninterruptible power supply is inconsistent with the voltage required by the load, controlling the electric energy output by the uninterruptible power supply to be processed by the buck-boost conversion circuit, the inverter and the transformer in sequence, and outputting the electric energy obtained after the processing to the load.
Optionally, the respectively controlling the new energy interface and the power grid interface to communicate with the load specifically includes: closing a first switch and a second switch to control the communication between the new energy interface and the power grid interface and the load;
the controlling the new energy interface and the power grid interface to be disconnected from the load specifically includes: disconnecting the first switch and the second switch to control the new energy interface and the power grid interface to be disconnected from the load;
one end of the first switch is connected to the new energy interface and the first interface, and the other end of the first switch is connected to the power grid interface and one end of the second switch; one end of the second switch is connected to the other end of the first switch and the power grid interface, and the other end of the second switch is connected to the second interface and the load.
In an embodiment of the present application, to increase reliability of the power supply system, the respectively controlling the new energy interface and the power grid interface to communicate with the load specifically includes: closing the first switch, the second switch and the third switch, and opening the fourth switch to control the communication between the new energy interface and the power grid interface and the load;
the controlling the new energy interface and the power grid interface to be disconnected from the load specifically includes: opening the first switch, the second switch and the fourth switch, and closing the third switch to control the new energy interface and the power grid interface to be disconnected from the load;
wherein one end of the first switch is connected to the new energy interface and the first interface, and the other end of the first switch is connected to one end of the second switch, one end of the fourth switch, and the power grid interface; one end of the second switch is connected to the other end of the first switch, one end of the fourth switch, and the power grid interface, respectively, and the other end of the second switch is connected to the second interface and one end of the third switch, respectively; one end of the third switch is connected to the second interface and the other end of the second switch, and the other end of the third switch is connected to the other end of the fourth switch and the load; one end of the fourth switch is connected to the other end of the first switch, one end of the second switch, and the power grid interface, respectively, and the other end of the fourth switch is connected to the other end of the third switch and the load, respectively.
Therefore, according to the scheme of the application, whether the power grid is in a normal state or not is detected, when the power grid is in the normal state, the new energy source interface and the power grid interface are respectively controlled to be communicated with the load, the output function of the second interface is forbidden, and when the power grid is in an abnormal state, the new energy source interface and the power grid interface are controlled to be disconnected from the load, the input function of the first interface is enabled, and the output function of the second interface is enabled. When the power grid is in an abnormal state, the new energy power supply equipment supplies power to the load, the input function of the first interface is started, the output function of the second interface is started, and the reliability of the power supply system is improved.
Example two
Fig. 2 shows a power supply control device provided in an embodiment of the present application, and for convenience of description, only a part related to the present embodiment is shown.
Specifically, referring to fig. 2, the power supply control device 20 may include: a first detection unit 201, a control unit 202;
a first detecting unit 201, configured to detect whether the power grid is in a normal state;
a control unit 202, configured to control the new energy source interface and the power grid interface to communicate with the load and disable an output function of the second interface when the power grid is in a normal state, so that the new energy source power supply device and the power grid supply the load complementarily;
the control unit 202 is further configured to, when the power grid is in an abnormal state, control the new energy interface and the power grid interface to be disconnected from the load, enable the input function of the first interface, and enable the output function of the second interface, so that the new energy power supply apparatus supplies power to the load through the uninterruptible power supply.
Optionally, the control unit 202: and enabling the input function of the second interface.
Optionally, the power supply control device 20 further includes:
a second detecting unit 203, configured to detect a power supply state of the new energy power supply device to the load, where the first detecting unit 201 and the second detecting unit 202 may be the same detecting unit;
the control unit 202 is further configured to: and when the power supply state of the new energy power supply equipment to the load is an abnormal state, the input function of the first interface is forbidden, and the output function of the second interface is started, so that the uninterrupted power supply supplies power to the load.
As shown in fig. 3, the uninterruptible power supply includes: the interface device comprises a first interface A configured with an input function and a second interface B configured with an input function and an output function, wherein the input function of the first interface A and the input function and the output function of the second interface B can be controlled by a switch.
Optionally, the power supply control device further includes: a first switch S1 and a second switch S2;
the control unit is specifically configured to:
closing the first switch S1 and the second switch S2 to control the new energy interface and the grid interface to communicate with the load;
opening the first switch S1 and the second switch S2 to control the new energy interface and the grid interface to be disconnected from the load;
one end of the first switch S1 is connected to the new energy interface and the first interface, respectively, and the other end of the first switch S1 is connected to the power grid interface and one end of the second switch S2, respectively;
one end of the second switch S2 is connected to the other end of the first switch S1 and the power grid interface, and the other end of the second switch S2 is connected to the second interface and the load.
In this embodiment of the application, in order to increase the reliability of the power supply system, as shown in fig. 4, the power supply control device further includes: a first switch S1, a second switch S2, a third switch S3, and a fourth switch S4;
the control unit is specifically further configured to:
closing a first switch S1, a second switch S2 and a third switch S3, and opening a fourth switch S4 to control the connection of the new energy source interface and the power grid interface with the load;
opening a first switch S1, a second switch S2 and a fourth switch S4, and closing a third switch S3 to control the new energy interface and the power grid interface to be disconnected from the load;
one end of the first switch S1 is connected to the new energy interface and the first interface a, respectively, and the other end of the first switch S1 is connected to one end of the second switch S2, one end of the fourth switch S4, and the power grid interface, respectively; one end of the second switch S2 is connected to the other end of the first switch S1, one end of the fourth switch S4, and the grid interface, respectively, and the other end of the second switch S2 is connected to the second interface B and one end of the third switch S3, respectively; one end of the third switch S3 is connected to the second port B and the other end of the second switch S2, and the other end of the third switch S3 is connected to the other end of the fourth switch S4 and the load; one end of the fourth switch S4 is connected to the other end of the first switch S1, one end of the second switch S2, and the grid interface, respectively, and the other end of the fourth switch S4 is connected to the other end of the third switch S3 and the load, respectively.
It can be seen from above that, the power supply control device that this application scheme provided includes: a first detection unit for detecting whether the power grid is in a normal state; and a control unit, configured to control the new energy interface and the power grid interface to communicate with the load and disable an output function of the second interface when the power grid is in a normal state, and control the new energy interface and the power grid interface to disconnect from the load, enable an input function of the first interface, and enable an output function of the second interface when the power grid is in an abnormal state. When the power grid is in an abnormal state, the new energy power supply equipment supplies power to the load, the input function of the first interface is started, the output function of the second interface is started, and the reliability of the power supply system is improved.
EXAMPLE III
An embodiment of the present application provides a power supply control device, please refer to fig. 5, where the power supply control device further includes: a memory 501, a processor 502, and a computer program and detection unit group 503 and a control unit group 504 stored in the memory 501 and executable on the processor 502, wherein: the memory 501 is used for storing software programs and modules, the processor 502 executes various functional applications and data processing by running the software programs and modules stored in the memory 501, the detection unit group 503 includes one or more detection units, and the memory 501, the processor 502, the detection unit group 503 and the control unit group 504 are connected by a bus 505.
Specifically, the processor 502 implements the following steps by running the above-mentioned computer program stored in the memory 501:
detecting whether the power grid is in a normal state;
if the power grid is in a normal state, the method comprises the following steps: respectively controlling the new energy source interface and the power grid interface to be communicated with the load, and disabling the output function of the second interface, so that the new energy source power supply equipment and the power grid supply power for the load in a complementary manner;
if the power grid is in an abnormal state: and controlling the new energy source interface and the power grid interface to be disconnected with the load, starting the input function of the first interface, and starting the output function of the second interface, so that the new energy source power supply equipment can supply power to the load through the uninterruptible power supply.
Assuming that the above is the first possible embodiment, in a second possible embodiment provided based on the first possible embodiment, when the power grid is in a normal state, the power supply control method further includes:
and enabling the input function of the second interface.
In a third possible embodiment provided based on the first possible embodiment, when the power grid is in an abnormal state, the power supply control method further includes:
detecting the power supply state of the new energy power supply equipment to the load;
if the power supply state of the new energy power supply equipment to the load is an abnormal state, the method comprises the following steps: and disabling the input function of the first interface and enabling the output function of the second interface so that the uninterrupted power supply can supply power to the load.
In a fourth possible implementation manner provided on the basis of the first possible implementation manner, the second possible implementation manner, or the third possible implementation manner, the controlling the new energy interface and the power grid interface to communicate with the load respectively specifically includes: closing a first switch and a second switch to control the communication between the new energy interface and the power grid interface and the load;
the controlling the new energy interface and the power grid interface to be disconnected from the load specifically includes: disconnecting the first switch and the second switch to control the new energy interface and the power grid interface to be disconnected from the load;
one end of the first switch is connected to the new energy interface and the first interface, and the other end of the first switch is connected to the power grid interface and one end of the second switch;
one end of the second switch is connected to the other end of the first switch and the power grid interface, and the other end of the second switch is connected to the second interface and the load.
It should be understood that in the embodiments of the present Application, the Processor 502 may be a Central Processing Unit (CPU), and the Processor may be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Therefore, the power supply control device provided by the scheme of the application can realize the following method: detecting whether the power grid is in a normal state, respectively controlling a new energy source interface and a power grid interface to be communicated with the load and forbidding an output function of a second interface when the power grid is in the normal state, and controlling the new energy source interface and the power grid interface to be disconnected with the load, enabling an input function of a first interface and enabling an output function of the second interface when the power grid is in an abnormal state. When the power grid is in an abnormal state, the new energy power supply equipment supplies power to the load, the input function of the first interface is started, the output function of the second interface is started, and the reliability of the power supply system is improved.
The integrated modules/units described above, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above may be implemented by a computer program, which may be stored in a computer-readable storage medium and can implement the steps of the embodiments of the methods described above when the computer program is executed by a processor. The computer program includes computer program code, and the computer program code may be in a source code form, an object code form, an executable file or some intermediate form. The computer readable medium may include: any entity or device capable of carrying the above-mentioned computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signal, telecommunication signal, software distribution medium, etc. It should be noted that the contents contained in the computer-readable storage medium can be increased or decreased as required by legislation and patent practice in the jurisdiction.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned functions may be distributed as different functional units and modules according to needs, that is, the internal structure of the apparatus may be divided into different functional units or modules to implement all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
It should be noted that, the methods and the details thereof provided by the foregoing embodiments may be combined with the apparatuses and devices provided by the embodiments, which are referred to each other and are not described again.
Those of ordinary skill in the art would appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described apparatus/device embodiments are merely illustrative, and for example, the division of the above-described modules or units is only one logical functional division, and the actual implementation may be implemented by another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A power supply control method is applied to a power supply system, and is characterized in that the power supply system comprises: electric power net, new forms of energy power supply unit and uninterrupted power source, uninterrupted power source includes: the system comprises a first interface configured with an input function and a second interface configured with an input function and an output function, wherein the first interface is connected with a new energy interface, and the second interface is respectively connected with the new energy interface, a power grid interface and a load, wherein the new energy interface is a power supply interface of new energy power supply equipment, and the power grid interface is a power supply interface of a power grid;
the power supply control method comprises the following steps:
detecting whether the power grid is in a normal state;
if the power grid is in a normal state, the method comprises the following steps: respectively controlling the new energy source interface and the power grid interface to be communicated with the load, and forbidding the output function of the second interface, so that the new energy source power supply equipment and the power grid supply power for the load in a complementary manner;
if the power grid is in an abnormal state, the method comprises the following steps: and controlling the new energy source interface and the power grid interface to be disconnected with the load, starting the input function of the first interface, and starting the output function of the second interface, so that the new energy source power supply equipment can supply power to the load through the uninterruptible power supply.
2. The power supply control method according to claim 1, wherein when the power grid is in a normal state, the power supply control method further comprises:
enabling an input function of the second interface.
3. The power supply control method according to claim 1, wherein when the power grid is in an abnormal state, the power supply control method further comprises:
detecting the power supply state of the new energy power supply equipment to the load;
if the power supply state of the new energy power supply equipment to the load is an abnormal state, the method comprises the following steps: and disabling the input function of the first interface and enabling the output function of the second interface so that the uninterruptible power supply can supply power to the load.
4. The power supply control method according to any one of claims 1 to 3,
the respectively controlling the communication between the new energy interface and the power grid interface and the load specifically comprises: closing a first switch and a second switch to control the new energy source interface and the power grid interface to communicate with the load;
the controlling the new energy interface and the power grid interface to be disconnected from the load specifically comprises: disconnecting the first switch and the second switch to control the new energy interface and the power grid interface to be disconnected from the load;
one end of the first switch is connected with the new energy interface and the first interface respectively, and the other end of the first switch is connected with the power grid interface and one end of the second switch respectively;
one end of the second switch is connected with the other end of the first switch and the power grid interface respectively, and the other end of the second switch is connected with the second interface and the load respectively.
5. A power supply control device based on the power supply control method according to claim 1, characterized by comprising:
the first detection unit is used for detecting whether the power grid is in a normal state or not;
the control unit is used for respectively controlling the new energy source interface and the power grid interface to be communicated with the load and forbidding the output function of the second interface when the power grid is in a normal state, so that the new energy source power supply equipment and the power grid can supply power for the load in a complementary manner;
the control unit is further configured to, when the power grid is in an abnormal state, control the new energy interface and the power grid interface to be disconnected from the load, enable the input function of the first interface, and enable the output function of the second interface, so that the new energy power supply device supplies power to the load through the uninterruptible power supply.
6. The power supply control device according to claim 5, wherein the control unit is further configured to:
enabling an input function of the second interface.
7. The power supply control device according to claim 5, characterized by further comprising:
the second detection unit is used for detecting the power supply state of the new energy power supply equipment to the load;
the control unit is further configured to:
and when the power supply state of the new energy power supply equipment to the load is an abnormal state, the input function of the first interface is forbidden, and the output function of the second interface is started, so that the uninterrupted power supply supplies power to the load.
8. The power supply control device according to any one of claims 5 to 7, characterized by further comprising: a first switch and a second switch;
the control unit is specifically configured to:
closing the first switch and the second switch to control the new energy source interface and the power grid interface to communicate with the load;
disconnecting the first switch and the second switch to control the new energy interface and the power grid interface to be disconnected from the load;
one end of the first switch is connected with the new energy interface and the first interface respectively, and the other end of the first switch is connected with the power grid interface and one end of the second switch respectively;
one end of the second switch is connected with the other end of the first switch and the power grid interface respectively, and the other end of the second switch is connected with the second interface and the load respectively.
9. A power supply control device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the steps of the method of any of claims 1 to 4 are implemented when the computer program is executed by the processor.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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