CN109768576B - Universal energy station and reverse power protection method and device thereof - Google Patents
Universal energy station and reverse power protection method and device thereof Download PDFInfo
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Abstract
The invention discloses a universal energy station and a reverse power protection method and device thereof. The method comprises the following steps: acquiring historical power consumption of target users and historical input power of a power grid at different moments within at least one first preset time; according to the historical electricity consumption of the target user and the historical input electricity quantity of the power grid, adjusting the output power of the generator in the universal energy station at different moments within the next first preset time; synchronously detecting whether the energy-flooding station has a reverse power running state within the next first preset time; and if the reverse power operation state occurs in the energy-flooding station, controlling to reduce the output power of the generator. The method can effectively avoid the reverse power running state of the energy-flooding station.
Description
Technical Field
The invention relates to the technical field of power supply, in particular to a universal energy station and a reverse power protection method and device thereof.
Background
The universal energy station is a novel comprehensive energy system which is built near a user side and can provide electric energy for the user. When the electric energy provided by the universal energy station is larger than the electric energy consumed by the user, the universal energy station inputs redundant electric energy into a national power grid, namely the universal energy station is in a reverse power operation state. At present, however, the electric energy provided by the universal energy station for the user can only be consumed by the user, and the universal energy station is not allowed to supply power to the national power grid.
In the related art, the total power input by the power grid is often detected through a power sensor, and when the detected total power input by the power grid exceeds a preset value, that is, a reverse power operation state occurs in the energy-flooding station, a power supply end of a generator in the energy-flooding station is disconnected to supply power to the generator. However, it still cannot effectively prevent the electric energy provided by the universal station from being input into the national grid.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the first purpose of the present invention is to provide a reverse power protection method for an energy-flooding station, which can effectively avoid the energy-flooding station from generating a reverse power operation state.
The second purpose of the invention is to provide a reverse power protection device of the universal station.
A third object of the invention is to propose a smart energy station.
A fourth object of the invention is to propose an electronic device.
A fifth object of the invention is to propose a non-transitory computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a method for reverse power protection of a smart station, where the method includes:
acquiring historical power consumption of target users and historical input power of a power grid at different moments within at least one first preset time;
according to the historical electricity consumption of the target user and the historical input electricity quantity of the power grid, adjusting the output power of the generator in the universal energy station at different moments within the next first preset time;
synchronously detecting whether the energy-flooding station has a reverse power running state within the next first preset time;
and if the reverse power operation state occurs in the energy-flooding station, controlling to reduce the output power of the generator.
According to an embodiment of the present invention, the adjusting the output power of the generator in the universal energy station at different times within a next first preset time period according to the historical power consumption of the target user and the historical input power of the power grid includes:
acquiring a difference value between the historical electricity consumption and the historical input electricity quantity at each moment in the at least one first preset time, determining expected input electricity quantity of the generator at the moment in the next first preset time according to the difference value at the moment, and determining expected output power of the generator at the moment in the next first preset time according to the expected input electricity quantity at the moment;
and when the next operation is carried out within the first preset time, adjusting the actual output power of the generator at the current moment according to the expected output power at the next moment.
According to an embodiment of the invention, the adjusting the actual output power of the generator in the flooding station at the current moment according to the expected output power at the next moment comprises:
acquiring a difference value between the actual output power of the generator at the current moment and the expected output power of the generator at the next moment;
and pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment according to the difference.
According to an embodiment of the present invention, the pre-adjusting the actual output power of the generator at the current time to the expected output power of the generator at the next time according to the difference comprises:
and determining an adjustment step length according to the difference, and pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment according to the adjustment step length.
According to an embodiment of the invention, before adjusting the actual output power of the generator in the flooding station at the current time according to the expected output power at the next time, the method further comprises:
and detecting and determining that the time for keeping the generator running at the actual output power reaches the preset time.
According to one embodiment of the invention, the controlling reducing the generator output power comprises:
and controlling to reduce the output power of the generator by a preset step length within a second preset time length.
According to an embodiment of the present invention, after reducing the output power of the generator by the preset step size, the method further includes:
and detecting and determining that the universal energy station keeps a reverse power operation state, and controlling the generator to stop operating.
According to the method for protecting the reverse power of the universal energy station, the output power of the generator in the universal energy station at different moments in the next first preset time is adjusted in advance according to the acquired historical power consumption of the target user in at least one first preset time and the historical input power of the power grid, so that the probability of the reverse power running state of the universal energy station is reduced, meanwhile, in the running process in the next first preset time, the reverse power running state of the universal energy station is still detected, and the condition of the reverse power running state of the universal energy station is eliminated by reducing the output power of the generator. Through the double control measures, the reverse power running state of the universal energy station is effectively avoided.
The embodiment of the second aspect of the invention provides a reverse power protection device for a smart energy station, which comprises:
the acquisition module is used for acquiring historical power consumption of a target user and historical input power of a power grid at different moments within at least one first preset time length;
the adjusting module is used for adjusting the output power of the generator in the universal energy station at different moments within the next first preset time according to the historical power consumption of the target user and the historical input power of the power grid;
the detection module is used for synchronously detecting whether the energy-flooding station has a reverse power running state within the next first preset time length;
and the control module is used for controlling to reduce the output power of the generator if the reverse power running state occurs in the energy-flooding station.
According to an embodiment of the present invention, the adjusting module is further configured to:
acquiring a difference value between the historical electricity consumption and the historical input electricity quantity at each moment in the at least one first preset time, determining expected input electricity quantity of the generator at the moment in the next first preset time according to the difference value at the moment, and determining expected output power of the generator at the moment in the next first preset time according to the expected input electricity quantity at the moment;
and when the next operation is carried out within the first preset time, adjusting the actual output power of the generator at the current moment according to the expected output power at the next moment.
According to an embodiment of the present invention, the adjusting module is further configured to:
acquiring a difference value between the actual output power of the generator at the current moment and the expected output power of the generator at the next moment;
and pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment according to the difference.
According to an embodiment of the present invention, the adjusting module is further configured to:
and determining an adjustment step length according to the difference, and pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment according to the adjustment step length.
According to an embodiment of the present invention, the adjusting module is further configured to:
and detecting and determining that the time for keeping the generator running at the actual output power reaches the preset time.
According to an embodiment of the invention, the control module is further configured to:
and controlling to reduce the output power of the generator by a preset step length within a second preset time length.
According to an embodiment of the invention, the control module is further configured to:
and detecting and determining that the universal energy station keeps a reverse power operation state, and controlling the generator to stop operating.
In the device for protecting the reverse power of the universal energy station provided by the second aspect of the invention, an adjusting module in the device adjusts the output power of a generator in the universal energy station at different moments in a next first preset time period in advance according to the historical power consumption of a target user and the historical input power of a power grid within at least one first preset time period acquired by an acquiring module, so as to avoid the probability of the reverse power running state of the universal energy station, and meanwhile, in the running process within the next first preset time period, if the detecting module still detects that the reverse power running state of the universal energy station occurs, the control module controls to reduce the output power of the generator, so as to eliminate the condition of the reverse power running state of the universal energy station. Through the double control measures, the reverse power running state of the universal energy station is effectively avoided.
The embodiment of the third aspect of the invention provides a universal station, which comprises the reverse power protection device of the universal station in the second aspect.
A fourth aspect of the present invention provides an electronic device, including a memory, a processor;
wherein the processor executes a program corresponding to the executable program code by reading the executable program code stored in the memory, so as to implement the reverse power protection method of the smart station in the first aspect.
A fifth aspect of the present invention provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the method for reverse power protection of a smart station as described in the first aspect.
Drawings
FIG. 1 is a flow diagram of a reverse power protection method of a smart station according to an embodiment of the disclosure;
FIG. 2 is a schematic diagram of a process of adjusting the output power of a generator in the reverse power protection method of the flooding station according to one embodiment of the disclosure;
FIG. 3 is a schematic diagram of the process of adjusting the output power of the generator in the reverse power protection method of the universal station according to another embodiment of the disclosure;
FIG. 4 is a schematic diagram of a power variation curve for adjusting the output power of a generator in the reverse power protection method of the flooding station according to an embodiment of the disclosure;
FIG. 5 is a schematic diagram of a power variation curve for adjusting the output power of a generator in the reverse power protection method of the universal station according to another embodiment of the disclosure; (ii) a
FIG. 6 is a schematic structural diagram of a reverse power protection device of the smart station according to an embodiment of the disclosure;
FIG. 7 is a schematic structural diagram of a ubiquitous power station according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The energy-flooding station and the reverse power protection method and device thereof according to the embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a reverse power protection method of a smart station according to an embodiment of the disclosure. As shown in fig. 1, the reverse power protection method for the smart station includes the following steps:
s11: and acquiring historical electricity consumption of the target user and historical input electricity of the power grid at different moments within at least one first preset time.
Specifically, the power consumption of the target user can be obtained through the intelligent electric meter or the multifunctional electric meter, wherein the intelligent electric meter or the multifunctional electric meter can be communicated with the upper computer control system through a network. For the input electric quantity of the power grid, the input power of the power grid can be measured through a power sensor arranged on the incoming line side of a user, and the input power is uploaded to an upper computer control system through a network; further, according to the corresponding relation between the power and the electric quantity (for example, the electric quantity is the product of the power and the time), the input electric quantity of the power grid is calculated and stored in the upper computer control system. When the historical electricity consumption of the target user and the historical input electricity of the power grid need to be acquired, calling from the upper computer control system is only needed.
The first preset time period may be a day, a month, a year, and the like, and may be selected according to actual situations, which is not limited herein. For different time, for example, when the first preset time is one day, each hour may be selected as one time; when the first preset time is one month, one time can be selected as each month; when the first preset time is one year, a month may be selected as one time, which may be specifically selected according to actual situations, and is not limited herein.
In order to obtain the accuracy of the data, the historical power consumption of the target user and the historical input power of the power grid at different moments in a plurality of first preset time periods can be obtained, and the historical power consumption and the historical input power are respectively averaged to obtain the average historical power consumption and the average historical input power.
And S12, adjusting the output power of the generator in the universal energy station at different moments within the next first preset time according to the historical electricity consumption of the target user and the historical input electricity of the power grid.
And acquiring the historical power consumption of the target user and the historical input electric quantity of the power grid, namely determining the historical input electric quantity of the universal energy station according to the historical power consumption of the target user and the historical input electric quantity of the power grid. Further, according to the historical input electric quantity of the universal energy station, the expected input electric quantity within the next first preset time length is determined; then, according to the expected input electric quantity, the output power of the generator in the flooding station at different moments in the next first preset time can be adjusted.
And S13, synchronously detecting whether the energy-flooding station has a reverse power running state in the next first preset time length.
It should be noted that, in order to avoid the occurrence of the reverse power operation state in the energy-flooding station, it is necessary to accurately detect whether the reverse power operation state occurs in the energy-flooding station in real time, and therefore, it is necessary to synchronously detect whether the reverse power operation state occurs in the energy-flooding station within the next first preset time period.
Specifically, a reverse power protection device can be arranged at the user side, and whether a reverse power running state occurs in the energy-flooding station or not is detected in real time through the reverse power protection device. Specifically, the reverse power protection device is connected with the upper computer control system through a network, and the reverse power protection device can feed back a real-time detection result to the upper computer control system.
If the reverse power protection device detects that the reverse power running state occurs in the energy-flooding station, which indicates that the output power of the generator in the energy-flooding station is larger at this time, that is, the electric quantity output by the generator is larger and exceeds the electric quantity required by the user, the step S4 is executed; otherwise, step S5 is executed.
And S14, controlling to reduce the output power of the generator.
And the upper computer control system sends out an instruction for reducing the output power of the generator so as to control the generator to reduce the output power, thereby avoiding the energy-flooding station from continuously operating in a reverse power state.
And S15, controlling the generator to operate at the expected output power.
Specifically, the reverse power protection device does not detect that the reverse power running state occurs in the energy-flooding station, which indicates that the electric quantity output by the generator in the energy-flooding station is matched with the electric quantity required by the user, and the upper computer control system continues to control the generator to run at the expected output power.
In summary, the embodiment provides a reverse power protection method for an energy-flooding station, output power of a generator in the energy-flooding station at different times within a next first preset time is adjusted in advance according to the obtained historical power consumption of a target user and the historical input power of a power grid within at least one first preset time, so as to reduce the probability of occurrence of a reverse power operation state in the energy-flooding station, and meanwhile, in the process of operation within the next first preset time, the occurrence of the reverse power operation state in the energy-flooding station is still detected, and the situation of the occurrence of the reverse power operation state in the energy-flooding station is eliminated by controlling and reducing the output power of the generator. Through the double control measures, the reverse power running state of the universal energy station is effectively avoided.
On the basis of the embodiment, the output power of the generator in the universal energy station at different moments in the next first preset time is adjusted to be optimized according to the historical electricity consumption of the target user and the historical input electricity of the power grid. As shown in fig. 2, fig. 2 is a schematic diagram of a process of adjusting output power of a generator in a reverse power protection method of a universal power station according to an embodiment of the disclosure, and specifically includes the following steps:
s21, aiming at each moment in at least one first preset time, obtaining a difference value between the historical electricity consumption and the historical input electricity quantity at the moment, determining the expected input electricity quantity of the generator at the moment in the next first preset time according to the difference value at the moment, and determining the expected output power of the generator at the moment in the next first preset time according to the expected input electricity quantity at the moment.
Specifically, the power consumption of the user is equal to the sum of the input power of the power grid and the input power of the universal energy station, so that the historical input power of the universal energy station at each moment can be obtained by subtracting the historical input power of the power grid from the historical power consumption of the target user at each moment. Further, the obtained historical input electric quantity of the universal energy station at each moment is used as the expected input electric quantity of the universal energy station at each moment in the next first preset time; and determining the expected output power of the generator at each moment in the next first preset time according to the expected input electric quantity of the universal energy station at each moment.
For example, the historical power consumption of the target user at the first time and the historical input power of the power grid at the first preset time are respectively 1500 degrees and 1000 degrees, the historical power consumption of the target user at the second time and the historical input power of the power grid at the second time are respectively 1200 degrees and 1000 degrees, and the historical input power of the universal station at the first time and the historical input power of the universal station at the second time are respectively 500 degrees and 200 degrees. At this time, 500 degrees and 200 degrees can be used as expected input electric quantities of the universal station at the first moment and the second moment in the next first preset period, and further, expected output powers of the generators at the first moment and the second moment are respectively calculated according to the expected input electric quantities.
And S22, when the next operation is carried out within the first preset time, adjusting the actual output power of the generator at the current moment according to the expected output power at the next moment.
Specifically, the expected output power of the generator at each time in the next first preset time period is determined, that is, the actual output power of the generator at the current time can be adjusted according to the expected output power of the generator at each time when the generator runs in the next first preset time period. Output power of a generator in the energy-flooding station at different moments within the next first preset time is adjusted in advance, so that the energy-flooding station is prevented from running in a reverse power mode.
For example, the first preset time period is 1 day, and the actual output power of the generator at that time is 1000 watts when the first day is about to end; and the expected output power of the generator at the first time of the next day is 800 watts. Therefore, when the next day is reached, the actual output power of the generator is adjusted from 1000 watts to 800 watts.
As a possible implementation manner, the actual output power of the generator may be adjusted in advance according to a difference between the actual output power of the current generator and the expected output power at the next time, so as to avoid occurrence of a rapid rise and fall phenomenon of the operating load of the generator caused by directly adjusting the actual output power of the current generator to the expected output power at the next time. As shown in fig. 3, fig. 3 is a schematic diagram of a process of adjusting output power of a generator in a reverse power protection method of a universal power station according to another embodiment of the disclosure, which specifically includes the following steps:
and S221, acquiring a difference value between the actual output power of the generator at the current moment and the expected output power of the generator at the next moment.
Specifically, the actual output electric quantity of the current generator may be calculated according to, but not limited to, the electric quantity used by the user at the current time and the input electric quantity of the power grid; further, the current actual output power of the generator is calculated according to the relation between the electric quantity and the power. Then, the difference between the actual output power of the generator at the present moment and the expected output power of the generator at the next moment can be calculated.
S222, according to the difference, the actual output power of the generator at the current moment is adjusted to the expected output power of the generator at the next moment in advance.
Specifically, the difference between the actual output power of the generator at the current time and the expected output power of the generator at the next time is obtained, that is, the actual output power of the generator may be adjusted in advance according to the difference.
Further, an adjustment step length can be determined according to a difference value between the actual output power of the generator at the current moment and the expected output power of the generator at the next moment, and further, the actual output power of the generator at the current moment is adjusted to the expected output power of the generator at the next moment in advance according to the adjustment step length.
For example, as shown in fig. 4, curves a, b, and c are respectively the variation curves of the output power of the generator plotted according to different adjustment steps. The time t1 is the current time, and the actual output power of the generator is P1; the time t2 is the next time when the expected output power of the generator is P2. In the process of pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment, the output power of the generator can be adjusted at the same time interval and the same step length, and the power change curve of the generator is a curve b; and the output power of the generator is adjusted at the same time interval and different step lengths, the power change of the generator can be one of the curves a or c. It should be understood that this figure is only an illustration and should not be construed as a limitation of the present embodiment.
Optionally, before the actual output power of the generator in the universal energy station at the current moment is adjusted according to the expected output power at the next moment, the time for keeping the actual output power running of the generator to reach the preset time can be detected and determined, so that the output power of the generator in the time interval from the current moment to the next moment can meet the demand of the power consumption of a user. Referring to fig. 5, in the drawing, t1 is the current time, t1 to t2 are preset times, and t3 is the next time; the generator keeps the actual output power to operate from the time t1 to the time t 2; and (4) from the time t2 to the time t3, adjusting the time output power of the generator to the expected output power according to the adjustment step.
On the basis of the embodiment, when the reverse power running state occurs in the energy-flooding station and the output power of the generator is controlled to be reduced, the output power of the generator can be reduced within a second preset time period by a preset step length, so that the phenomenon that the load of the generator is rapidly reduced is avoided.
Optionally, after the output power of the generator is reduced by preset steps, the reverse power operation state of the flooding station can be detected and determined, and the generator is controlled to stop operating. Specifically, if the energy-flooding station still keeps the reverse power operation state at the end of the second preset time period, at the time, the generator is controlled to stop operating. By the delayed starting of the reverse power protection action, the occurrence of the reverse power protection action (namely, the stop of the generator is controlled) when the reverse power runs accidentally and in a short time can be effectively avoided, and the stop frequency of the generator is reduced.
In order to implement the above embodiments, the embodiment of the present invention further provides a reverse power protection device for the smart energy station.
Fig. 6 is a schematic structural diagram of a reverse power protection device of the smart station according to an embodiment of the disclosure. As shown in fig. 6, the apparatus includes:
the obtaining module 601 is configured to obtain historical power consumption amounts of target users and historical input electric quantity of a power grid at different times within at least one first preset time period;
the adjusting module 602 is configured to adjust output power of a generator in the universal energy station at different times within a next first preset time according to the historical power consumption of the target user and the historical input power of the power grid;
the detecting module 603 is configured to synchronously detect whether the energy-flooding station has a reverse power running state within a next first preset time;
and a control module 604, configured to control to reduce the generator output power if the station is in a reverse power operation state.
Further, the adjusting module 602 is configured to:
the method comprises the steps that for each moment in at least one first preset duration, the difference value between historical electricity consumption and historical input electricity at the moment is obtained, the expected input electricity of the generator at the moment in the next first preset duration is determined according to the difference value at the moment, and the expected output power of the generator at the moment in the next first preset duration is determined according to the expected input electricity at the moment;
and when the next operation is carried out within the first preset time, the actual output power of the generator at the current moment is adjusted according to the expected output power at the next moment.
Further, the adjusting module 602 is configured to:
acquiring a difference value between the actual output power of the generator at the current moment and the expected output power of the generator at the next moment;
and pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment according to the difference.
Further, the adjusting module 602 is configured to:
and determining an adjustment step length according to the difference, and pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment according to the adjustment step length.
Further, the adjusting module 602 is further configured to:
and detecting and determining that the time for keeping the generator running at the actual output power reaches the preset time.
Further, the control module 604 is configured to:
and controlling to reduce the output power of the generator by preset step length within a second preset time length.
Further, the control module 604 is configured to:
and detecting and determining that the universal energy station keeps a reverse power running state, and controlling the generator to stop running.
It should be understood that the above-mentioned apparatus is used for executing the method in the above-mentioned embodiments, and the implementation principle and technical effect of the apparatus are similar to those described in the above-mentioned method, and the working process of the apparatus may refer to the corresponding process in the above-mentioned method, and is not described herein again.
In summary, in the reverse power protection apparatus for the universal power station provided in this embodiment, the adjusting module in the apparatus adjusts in advance the output power of the generator in the universal power station at different times within the next first preset time period according to the historical power consumption of the target user and the historical input power of the power grid within the at least one first preset time period acquired by the acquiring module, so as to reduce the probability of the reverse power operation state occurring in the universal power station, meanwhile, in the process of operating within the next first preset time period, the detecting module still detects that the reverse power operation state occurs in the universal power station, and then the control module controls to reduce the output power of the generator, so as to eliminate the situation that the reverse power operation state occurs in the universal power station. Through the double control measures, the reverse power running state of the universal energy station is effectively avoided.
In order to implement the above embodiment, an embodiment of the present invention further provides a smart station, as shown in fig. 7, wherein the reverse power protection apparatus 100 of the smart station in the above embodiment is disposed in the smart station.
In order to implement the foregoing embodiments, an embodiment of the present invention further provides an electronic device, as shown in fig. 8, the electronic device includes a memory 801, a processor 802; wherein, the processor 802 runs a program corresponding to the executable program code by reading the executable program code stored in the memory 801, for implementing the reverse power protection method of the universal station in the above-mentioned embodiments.
In order to implement the above embodiments, an embodiment of the present invention further provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the reverse power protection method of the smart station in the above embodiments.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (13)
1. A method for reverse power protection of a smart station, the method comprising:
acquiring historical power consumption of target users and historical input power of a power grid at different moments within at least one first preset time;
according to the historical electricity consumption of the target user and the historical input electricity quantity of the power grid, the actual output power of the generator in the flooding station at different times in the next first preset time is adjusted, and the method comprises the following steps: acquiring a difference value between the historical electricity consumption and the historical input electricity quantity at each moment in the at least one first preset time, determining expected input electricity quantity of the generator at the moment in the next first preset time according to the difference value at the moment, and determining expected output power of the generator at the moment in the next first preset time according to the expected input electricity quantity at the moment; when the next operation within the first preset time is reached, adjusting the actual output power of the generator at the current moment according to the expected output power at the next moment, wherein the adjusting the actual output power of the generator in the energy-flooding station at the current moment according to the expected output power at the next moment comprises: acquiring a difference value between the actual output power of the generator at the current moment and the expected output power of the generator at the next moment; according to the difference, the actual output power of the generator at the current moment is adjusted to the expected output power of the generator at the next moment in advance;
synchronously detecting whether the energy-flooding station has a reverse power running state within the next first preset time;
and if the reverse power operation state occurs in the energy-flooding station, controlling to reduce the actual output power of the generator.
2. The method of claim 1, wherein pre-adjusting the actual output power of the generator at the current time to the expected output power of the generator at the next time according to the difference comprises:
and determining an adjustment step length according to the difference, and pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment according to the adjustment step length.
3. The method of claim 1, wherein before adjusting the actual output power of the generator in the flooding station at the current time according to the expected output power at the next time, further comprising:
and detecting and determining that the time for keeping the generator running at the actual output power reaches the preset time.
4. The method of any of claims 1 to 3, wherein the controlling reduces the actual output power of the generator, comprising:
and controlling to reduce the actual output power of the generator by a preset step length within a second preset time length.
5. The method of claim 4, wherein after reducing the actual output power of the generator by the preset step size, further comprising:
and detecting and determining that the universal energy station keeps a reverse power operation state, and controlling the generator to stop operating.
6. A reverse power protection apparatus of a smart station, the apparatus comprising:
the acquisition module is used for acquiring historical power consumption of a target user and historical input power of a power grid at different moments within at least one first preset time length;
the adjusting module is used for adjusting the actual output power of the generator in the universal energy station at different moments in the next first preset time according to the historical electricity consumption of the target user and the historical input electricity quantity of the power grid, and the adjusting module is further used for: acquiring a difference value between the historical electricity consumption and the historical input electricity quantity at each moment in the at least one first preset time, determining expected input electricity quantity of the generator at the moment in the next first preset time according to the difference value at the moment, and determining expected output power of the generator at the moment in the next first preset time according to the expected input electricity quantity at the moment; when the next operation within the first preset time is reached, adjusting the actual output power of the generator at the current moment according to the expected output power at the next moment, wherein when the actual output power of the generator at the current moment is adjusted, the adjusting module is specifically configured to: acquiring a difference value between the actual output power of the generator at the current moment and the expected output power of the generator at the next moment; according to the difference, the actual output power of the generator at the current moment is adjusted to the expected output power of the generator at the next moment in advance;
the detection module is used for synchronously detecting whether the energy-flooding station has a reverse power running state within the next first preset time length;
and the control module is used for controlling and reducing the actual output power of the generator if the reverse power running state occurs in the energy-flooding station.
7. The apparatus of claim 6, wherein the adjustment module is further configured to:
and determining an adjustment step length according to the difference, and pre-adjusting the actual output power of the generator at the current moment to the expected output power of the generator at the next moment according to the adjustment step length.
8. The apparatus of claim 6, wherein the adjustment module is further configured to:
and detecting and determining that the time for keeping the generator running at the actual output power reaches the preset time.
9. The apparatus of any of claims 6 to 8, wherein the control module is further configured to:
and controlling to reduce the actual output power of the generator by a preset step length within a second preset time length.
10. The apparatus of claim 9, wherein the control module is further configured to:
and detecting and determining that the universal energy station keeps a reverse power operation state, and controlling the generator to stop operating.
11. A smart station comprising the reverse power protection arrangement of the smart station according to any one of claims 6 to 10.
12. An electronic device comprising a memory, a processor;
wherein the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory for implementing the reverse power protection method of the smart station according to any one of claims 1 to 5.
13. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of reverse power protection of a smart station according to any one of claims 1 to 5.
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| CN103647283A (en) * | 2013-12-11 | 2014-03-19 | 湖北工业大学 | Solar power grid and municipal power grid no-countercurrent combination power supply control system and method thereof |
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