CN109256802B - Peak-shaving power supply control method and device - Google Patents
Peak-shaving power supply control method and device Download PDFInfo
- Publication number
- CN109256802B CN109256802B CN201811168924.7A CN201811168924A CN109256802B CN 109256802 B CN109256802 B CN 109256802B CN 201811168924 A CN201811168924 A CN 201811168924A CN 109256802 B CN109256802 B CN 109256802B
- Authority
- CN
- China
- Prior art keywords
- power
- energy storage
- storage device
- supply
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004146 energy storage Methods 0.000 claims abstract description 81
- 238000010248 power generation Methods 0.000 claims abstract description 75
- 230000005611 electricity Effects 0.000 claims description 25
- 238000004364 calculation method Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000000352 storage cell Anatomy 0.000 description 1
Images
Classifications
-
- H02J3/386—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Abstract
The invention provides a peak-shaving power supply control method and device, and relates to the technical field of power supply. The method comprises the steps of obtaining current time, determining a power supply time period according to the corresponding relation between the current time and a preset power supply time period, wherein the power supply time period comprises a first time period, a second time period and a third time period, and finally controlling a power generation device and an energy storage device to supply power according to the power supply time period. The peak-shaving power supply control method and the peak-shaving power supply control device have the effect of more stable power supply.
Description
Technical Field
The invention relates to the technical field of power supply, in particular to a peak-shaving power supply control method and device.
Background
Wind energy is a novel energy source, compared with the traditional energy source, the wind energy source has the advantages of being renewable, low in cost, free of pollutant and carbon emission and the like, and meanwhile, due to the large-scale and commercial development prospect and the clean utilization mode of the wind energy source, the related technologies of power generation, transmission and use of the wind energy source become research hotspots of the current industry. However, due to randomness and uncertainty of wind energy, and a peak period and a low peak period of power consumption when a user uses power, stable operation of the wind power generation device is affected.
In view of the above, how to solve the above problems is the focus of attention of those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a peak shaving power supply control method to solve the problem that a wind power generation device in the prior art cannot operate stably.
Another objective of the present invention is to provide a peak shaving power supply control device to solve the problem that the wind power generation device in the prior art cannot operate stably.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
on one hand, the embodiment of the invention provides a peak-shaving power supply control method, which comprises the following steps:
acquiring current time;
determining a power supply time period according to the corresponding relation between the current time and a preset power supply time period; wherein the power supply period includes a first period, a second period, and a third period;
and controlling the power generation device and the energy storage device to supply power according to the power supply time interval.
On the other hand, the embodiment of the present invention further provides a peak shaving power supply control device, where the peak shaving power supply control device includes:
a time acquisition unit for acquiring a current time;
the time interval determining unit is used for determining the power supply time interval according to the corresponding relation between the current time and the preset power supply time interval; wherein the power supply period includes a first period, a second period, and a third period;
and the power supply control unit is used for controlling the power generation device and the energy storage device to supply power according to the power supply time interval.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a peak shaving power supply control method and device, which are characterized in that the current time is obtained, then a power supply time interval is determined according to the corresponding relation between the current time and a preset power supply time interval, wherein the power supply time interval comprises a first time interval, a second time interval and a third time interval, and finally a power generation device and an energy storage device are controlled to supply power according to the power supply time interval. On one hand, the peak regulation control method provided by the invention adopts the power generation zeotropic fingers to be matched with the energy storage device for power supply, so that the effect of stable power supply can be realized. On the other hand, the power supply time interval is divided into three time intervals according to the actual situation, and different power supply strategies can be adopted according to different time intervals, so that the effect of more stable power supply is achieved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 shows a functional module diagram of a server provided by an embodiment of the present invention.
Fig. 2 shows a flowchart of a peak shaving power supply control method provided by an embodiment of the present invention.
Fig. 3 shows a flowchart of sub-steps of step S103 in fig. 2 provided by an embodiment of the present invention.
Fig. 4 shows a block schematic diagram of a peak shaving power supply control device according to an embodiment of the present invention.
Fig. 5 shows a sub-module schematic diagram of a power supply control unit provided by the embodiment of the invention.
Icon: 10-a server; 12-a memory; 13-a memory controller; 14-a processor; 100-peak shaving power supply control device; 110-a time acquisition unit; 120-a time determination unit; 130-a power supply control unit; 131-a power calculation module; 132-a charging module; 133-a discharge amount calculation module; 134-a power supply module; 135-power harvesting module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
First embodiment
Fig. 1 is a schematic diagram of functional modules of a server 10 provided by the present invention. The server 10 includes a functional module schematic diagram of the server 10 provided by the present invention, as shown in fig. 1. The server 10 includes a peak shaver power supply control device 100, a memory 12, a storage controller 13, and a processor 14.
The memory 12, the memory controller 13, and the processor 14 are electrically connected to each other directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The peaking power supply control apparatus 100 includes at least one software function module which may be stored in the memory 12 in the form of software or firmware (firmware) or solidified in an Operating System (OS) of the server 10. The processor 14 is configured to execute an executable module stored in the memory 12, such as a software functional module or a computer program included in the peak shaver power supply control apparatus 100.
The Memory 12 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM) 12, a Programmable Read Only Memory (PROM) 12, an Erasable Read Only Memory (EPROM) 12, an electrically Erasable Read Only Memory (EEPROM) 12, and the like. The memory 12 is used for storing a program, and the processor 14 executes the program after receiving an execution instruction, and the method executed by the server 10 defined by the flow process disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 14, or implemented by the processor 14.
The processor 14 may be an integrated circuit chip having signal processing capabilities. The Processor 14 may be a general-purpose Processor 14, and includes a Central Processing Unit (CPU) 14, a Network Processor (NP) 14, and the like; but may also be a digital signal processor 14(DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. The general purpose processor 14 may be a microprocessor 14 or the processor 14 may be any conventional processor 14 or the like.
Please refer to fig. 2, which is a flowchart illustrating a peak shaving power supply control method applied to fig. 1 according to a preferred embodiment of the present invention. The specific process shown in fig. 2 will be described in detail below.
Step S101, obtaining the current time.
In this embodiment, since the power supply condition for each time period is not the same, the current time needs to be acquired first. The obtaining manner may be a clock set by the server 10 itself, or may be obtained in a network connection manner, which is not limited in this embodiment.
Step 102, determining a power supply time period according to the corresponding relation between the current time and a preset power supply time period; wherein the power supply period includes a first period, a second period, and a third period.
In this embodiment, the power supply time interval is divided into a first time interval, a second time interval and a third time interval, wherein the first time interval is a reverse peak regulation time interval, that is, at this time, the wind power is strong, the power generation amount of the wind power generation is at a peak and the power load is low, and the wind power generation is at a peak load and a valley load time interval. The second time interval is the peak regulation time interval, namely the wind power is weaker at the moment, the wind power generation capacity is in the valley and the power load is higher, and the wind power valley load is in the peak time interval. The third time interval is other than the first time interval and the second time interval. Of course, in some other embodiments, more time periods may be included, and this embodiment does not limit this.
For example, in a certain time period of each day, the wind power is the largest, the power generation amount of the wind power generation is at the peak, or in a certain time period of each day, the power load is the largest, so that for different regions, the preset power supply time period corresponding relations are different, for example, the power load is lower in the early morning, and the power generation amount of the power generation device is larger at the time. The first time period is set to 0 o 'clock to 6 o' clock, and after six pm, since all people are on duty, the electric load is large and the power generation amount of the power generation device is small, the second time period is set to 18 o 'clock to 24 o' clock, and the third time period is set to the other time of the day. Meanwhile, the current power supply period can be determined by the server 10 in which period the current time is.
And S103, controlling the power generation device and the energy storage device to supply power according to the power supply time interval.
In this embodiment, a power generation device and an energy storage device are combined to supply power, and it should be noted that the energy storage device provided by this embodiment includes an energy storage battery, which can achieve the effect of both charging and discharging.
Referring to fig. 3, step S103 includes:
and a substep S1031, calculating the charging power of the energy storage device when the power supply time interval is a first time interval.
When the first time interval is in, the generated energy of the power generation device can meet the load requirement, the energy storage device is not needed to supply power, meanwhile, the generated energy is large, so that the energy storage device can be charged while power is supplied, and the energy storage device can discharge when the generated energy of the power generation device cannot meet the load requirement.
Before charging the energy storage device, the SOC (State of Charge) needs to be detected, that is, the remaining power is detected, and the charging power of the energy storage device is calculated by using the remaining power. In this embodiment, an energy storage device is taken as an energy storage battery for explanation, and a calculation formula thereof is as follows:
And a substep S1032 of, when the current time is in the high electricity price period, controlling the power generation device to supply power and simultaneously charging the energy storage device with a first charging power, wherein the first charging power is equal to half of the charging power.
Since the power supply station determines the electricity price in different time periods during actual use, for example, the electricity price may be increased during a peak period of the electricity consumption, and the electricity price may be decreased during a valley period of the electricity consumption. On the one hand, at high electricity prices, charging of the energy storage battery needs to be reduced as much as possible to meet market demands. On the other hand, at high electricity prices, it is also assumed that the peak time of electricity utilization is in this time, and charging of the energy storage battery should be minimized. Therefore, in the present embodiment, at the time of high electricity prices, the first charging power is equal to half of the charging power.
It should be noted that, as a first implementation manner of this embodiment, for the determination of the high electricity price period, the high electricity price time period may be preset, and when the current time is within the high electricity price period, that is, it indicates that the current time is within the high electricity price time period.
As a second implementation manner of the embodiment, the high electricity price period may be determined by acquiring the load demand, and since the high electricity price period is generally set when the load demand is large, when the current load demand is larger than the preset demand, the current period may be determined as the high electricity price period.
As a third implementation manner of the embodiment, the high electricity price period may be determined in a manual control manner by a worker.
And a substep S1033, when the current time is in the low electricity price period, controlling the power generation device to supply power and simultaneously charging the energy storage device with a second charging power, wherein the second charging power is equal to the charging power.
And a substep S1034, when the power supply time interval is a second time interval, calculating the maximum discharge capacity of the energy storage device.
When being in the second time interval, the generated energy that shows power generation facility can't satisfy the load demand, needs energy memory to supply power this moment to need to discharge with energy storage battery and participate in the peak shaving, in order to guarantee battery cyclic utilization, the maximum discharge capacity of battery is:
Qd＝(SOC-SOC0)Qbv, wherein, SOC0Is the initial value of the state of charge of the battery, and the SOC represents the current electric quantity.
And a substep S1035 of supplying power to the power generation device according to the maximum discharge amount of the energy storage device.
When the energy storage battery is used for supplying power, in order to ensure the normal use of the energy storage battery, the power supply capacity of the energy storage battery cannot exceed the maximum discharge capacity of the energy storage battery, when the discharge capacity of the energy storage battery does not reach the maximum discharge capacity, the energy storage battery and the power generation device are used for supplying power together, and when the discharge capacity of the energy storage battery reaches the maximum discharge capacity, the power generation device is only used for supplying power.
And a substep S1036 of calculating the maximum required power and the minimum required power according to the given power predicted value and a preset coefficient when the power supply time interval is a third time interval.
In the third stage, the power generation amount of the power generation device may or may not meet the power demand of the load.
In the third time period, a given power prediction value and a preset coefficient are stored in the server 10, the given power prediction value is an average power consumption of the load, and the maximum required power and the minimum required power of the load can be estimated by using the average power consumption.
Wherein, the estimated formula is as follows:
And a substep S1037 of obtaining the output power of the current power generation device.
And a substep S1038 of controlling the power generation device to supply power and simultaneously charge the energy storage device when the output power is greater than the maximum required power.
When the output power of the power generation device is larger than the maximum required power, the power generation device can meet the power supply requirement, and meanwhile, the energy storage device can be charged.
Specifically, the sub-step S1038 includes:
and a substep S10381 of controlling the power generation device to supply power and simultaneously charge the energy storage device with a third charging power when the current time is in the high-price time period.
And a substep S10382 of controlling the power generation device to supply power and simultaneously charge the energy storage device with a fourth charging power when the current time is in the low electricity price period.
And the fourth charging power is twice as much as the third charging power.
And a substep S1039, controlling the power generation device and the energy storage device to supply power when the output power is between the maximum required power and the minimum required power, wherein the energy storage device discharges with a first discharge power.
And a substep S1040, when the output power is less than the minimum required power, controlling the power generation device and the energy storage device to supply power, wherein the energy storage device discharges with a second discharge power.
Wherein the value of the first discharge power is twice as large as the second discharge power.
Second embodiment
Referring to fig. 4, a functional unit diagram of the peak shaving power supply control apparatus 100 shown in fig. 1 according to a preferred embodiment of the present invention is provided. It should be noted that the basic principle and the generated technical effect of the peak shaving power supply control device 100 provided in the present embodiment are the same as those of the above embodiments, and for the sake of brief description, no part of the embodiments of the present invention is mentioned, and reference may be made to the corresponding contents in the above embodiments. The peak shaving power supply control apparatus 100 includes:
a time obtaining unit 110, configured to obtain a current time.
It is understood that step S101 may be performed by the time acquisition unit 110.
And the time interval determining unit is used for determining the power supply time interval according to the corresponding relation between the current time and the preset power supply time interval.
It is understood that the pass period determining unit may perform step S102.
And a power supply control unit 130, configured to control the power generation device and the energy storage device to supply power according to the power supply time interval.
It is understood that step S103 may be performed by the power supply control unit 130.
Referring to fig. 5, the power supply control unit 130 includes:
a power calculating module 131, configured to calculate a charging power of the energy storage device when the power supply period is a first period.
It is understood that sub-step S1031 may be performed by the power calculation module 131.
And the charging module 132 is configured to control the power generation device to supply power and charge the energy storage device with the first charging power when the current time is in the high-price time period.
It is understood that sub-step S1032 may be performed by the charging module 132.
The charging module 132 is further configured to control the power generation device to supply power and charge the energy storage device with a second charging power when the current time is in the low-electricity-price time period.
It is understood that substep S1033 may be performed by the charging module 132.
A discharge amount calculating module 133, configured to calculate a maximum discharge amount of the energy storage device when the power supply period is a second period.
It is understood that the substep S1034 may be performed by the discharge amount calculation module 133.
And the power supply module 134 is configured to supply power to the power generation device according to the maximum discharge amount of the energy storage device.
It is understood that the substep S1035 may be performed by the power supply module 134.
The power calculating module 131 is configured to calculate the maximum required power and the minimum required power according to the given power predicted value and a preset coefficient when the power supply time interval is a third time interval.
It is understood that substep S1036 may be performed by power calculation module 131.
A power obtaining module 135, configured to obtain output power of a current power generation apparatus;
it is understood that substep S1037 may be performed by the power harvesting module 135.
And the power supply module 134 is configured to control the power generation device to supply power and charge the energy storage device when the output power is greater than the maximum required power.
It is understood that sub-step S1038 may be performed by the power module 134.
The power supply module 134 is further configured to control the power generation device and the stored energy to supply power when the output power is between the maximum required power and the minimum required power.
Wherein, the power supply module 134 includes:
and the power supply module is used for controlling the power generation device to supply power and simultaneously charging the energy storage device with third charging power when the current time is in the high-price time period.
It will be appreciated that sub-step S10381 may be performed by the power supply module.
And the power supply module is also used for controlling the power generation device to supply power and simultaneously charging the energy storage device with fourth charging power when the current time is in the low electricity price period.
It will be appreciated that sub-step S10382 may be performed by the power supply module.
It is understood that substep S1039 may be performed by the power supply module 134.
The power supply module 134 is further configured to control the power generation device and the stored energy to supply power when the output power is smaller than the minimum required power.
It is understood that substep S1040 may be performed by the power supply module 134.
In summary, the present invention provides a peak shaving power supply control method and device, wherein a power supply time interval is determined according to a corresponding relationship between a current time and a preset power supply time interval, where the power supply time interval includes a first time interval, a second time interval, and a third time interval, and finally a power generation device and an energy storage device are generally controlled to supply power according to the power supply time interval. On one hand, the peak regulation control method provided by the invention adopts the power generation zeotropic fingers to be matched with the energy storage device for power supply, so that the effect of stable power supply can be realized. On the other hand, the power supply time interval is divided into three time intervals according to the actual situation, and different power supply strategies can be adopted according to different time intervals, so that the effect of more stable power supply is achieved.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Claims (4)
1. A peak shaving power supply control method is characterized by comprising the following steps:
acquiring current time;
determining a power supply time period according to the corresponding relation between the current time and a preset power supply time period; wherein the power supply period includes a first period, a second period, and a third period;
controlling a power generation device and an energy storage device to supply power according to the power supply time interval; wherein the content of the first and second substances,
the step of controlling the power generation device and the energy storage device to supply power according to the power supply time interval comprises the following steps:
when the power supply time interval is a third time interval, calculating the maximum required power and the minimum required power according to a given power predicted value and a preset coefficient; wherein, the formula of calculation is:
acquiring the output power of the current power generation device;
when the output power is larger than the maximum required power, controlling the power generation device to supply power and simultaneously charging the energy storage device;
when the output power is between the maximum required power and the minimum required power, controlling the power generation device and the energy storage device to supply power, wherein the energy storage device discharges with first discharge power;
when the output power is smaller than the minimum required power, controlling the power generation device and the energy storage device to supply power, wherein the energy storage device discharges with a second discharge power;
wherein, the step of controlling the power generation device and the energy storage device to supply power according to the power supply time interval comprises the following steps:
when the power supply time interval is a first time interval, calculating the charging power of the energy storage device;
when the current time is in a high-price time period, controlling the power generation device to supply power and simultaneously charging the energy storage device with first charging power, wherein the first charging power is equal to half of the charging power;
when the current time is in a low electricity price period, controlling the power generation device to supply power and simultaneously charging the energy storage device with second charging power, wherein the second charging power is equal to the charging power;
and when the output power is greater than the maximum required power, the step of controlling the power generation device to supply power and simultaneously charging the energy storage device comprises the following steps:
when the current time is in a high-electricity-price time period, controlling the power generation device to supply power and simultaneously charging the energy storage device with third charging power;
and when the current time is in a low electricity price period, controlling the power generation device to supply power and simultaneously charging the energy storage device with fourth charging power.
2. The peak-shaving power supply control method according to claim 1, wherein the step of controlling the power generation device and the energy storage device to supply power according to the power supply time period comprises:
when the power supply time interval is a second time interval, calculating the maximum discharge capacity of the energy storage device;
and supplying power to the power generation device according to the maximum discharge capacity of the energy storage device.
3. A peak shaving power supply control device, characterized by comprising:
a time acquisition unit for acquiring a current time;
the time interval determining unit is used for determining the power supply time interval according to the corresponding relation between the current time and the preset power supply time interval; wherein the power supply period includes a first period, a second period, and a third period;
the power supply control unit is used for controlling the power generation device and the energy storage device to supply power according to the power supply time interval; wherein the power supply control unit includes:
the power calculation module is used for calculating the maximum required power and the minimum required power according to a given power predicted value and a preset coefficient when the power supply time interval is a third time interval; wherein, the formula of calculation is:
the power acquisition module is used for acquiring the output power of the current power generation device;
the power supply module is used for controlling the power generation device to supply power and simultaneously charging the energy storage device when the output power is larger than the maximum required power;
the power supply module is further used for controlling the power generation device and the energy storage device to supply power when the output power is between the maximum required power and the minimum required power, wherein the energy storage device discharges with first discharge power;
the power supply module is further used for controlling the power generation device and the energy storage device to supply power when the output power is smaller than the minimum required power, wherein the energy storage device discharges with second discharge power;
the power calculation module is used for calculating the charging power of the energy storage device when the power supply time interval is a first time interval;
the charging module is used for controlling the power generation device to supply power and simultaneously charging the energy storage device with first charging power when the current time is in a high-electricity-price time period, wherein the first charging power is equal to half of the charging power;
wherein the power supply module includes:
the power supply module is used for controlling the power generation device to supply power and simultaneously charging the energy storage device with third charging power when the current time is in a high-price time period;
the power supply module is further used for controlling the power generation device to supply power and simultaneously charging the energy storage device with fourth charging power when the current time is in the low electricity price period
The charging module is further used for controlling the power generation device to supply power and simultaneously charge the energy storage device with second charging power when the current time is in a low electricity price period, wherein the second charging power is equal to the charging power.
4. The peak-shaving power supply control device according to claim 3, wherein the power supply control unit includes:
the discharge amount calculation module is used for calculating the maximum discharge amount of the energy storage device when the power supply time interval is a second time interval;
and the power supply module is used for supplying power to the power generation device according to the maximum discharge capacity of the energy storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168924.7A CN109256802B (en) | 2018-10-08 | 2018-10-08 | Peak-shaving power supply control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168924.7A CN109256802B (en) | 2018-10-08 | 2018-10-08 | Peak-shaving power supply control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109256802A CN109256802A (en) | 2019-01-22 |
| CN109256802B true CN109256802B (en) | 2020-11-10 |
Family
ID=65044959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811168924.7A Active CN109256802B (en) | 2018-10-08 | 2018-10-08 | Peak-shaving power supply control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109256802B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102104251B (en) * | 2011-02-24 | 2013-04-24 | 浙江大学 | Microgrid real-time energy optimizing and scheduling method in parallel running mode |
| CN103580043B (en) * | 2013-10-09 | 2015-07-29 | 新疆大学 | Energy storage charge/discharge control method in wind storage integral system |
| CN103840486B (en) * | 2014-03-07 | 2015-12-30 | 广东志成冠军集团有限公司 | A kind of control method of photovoltaic power supply system grid connection of accumulation energy type |
| KR101792395B1 (en) * | 2016-02-15 | 2017-11-01 | 두산중공업 주식회사 | Energy Storage System and management method thereof |
| CN106712075B (en) * | 2016-04-26 | 2019-05-10 | 武汉大学 | A kind of peak regulation policy optimization method considering wind-electricity integration system security constraint |
| CN106058905B (en) * | 2016-07-20 | 2018-12-07 | 姜宪明 | Distributed photovoltaic energy storage peak shaving system based on power prediction |
| CN106356906A (en) * | 2016-10-13 | 2017-01-25 | 国网山东省电力公司威海供电公司 | Energy conservation control method and system based on microgrid |
| CN107104462B (en) * | 2017-05-18 | 2019-09-24 | 电子科技大学 | A method of it is dispatched for wind power plant energy storage |
| CN107706933B (en) * | 2017-09-20 | 2020-07-10 | 华北电力大学 | Active power distribution network three-layer optimization scheduling method based on energy storage time-sharing state decision |
| CN108039736B (en) * | 2017-11-14 | 2019-05-17 | 国网辽宁省电力有限公司 | A kind of large capacity heat accumulation storage coordinated scheduling method for improving wind-powered electricity generation and receiving ability |
| CN108233422B (en) * | 2018-02-09 | 2021-07-02 | 大工（青岛）新能源材料技术研究院有限公司 | Light storage micro-grid operation control method based on predictive control |
| CN108321803B (en) * | 2018-02-26 | 2022-05-31 | 国网重庆市电力公司电力科学研究院 | Power grid peak regulation control system and method based on power load data of power grid |
-
2018
- 2018-10-08 CN CN201811168924.7A patent/CN109256802B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| A coordinated charging strategy for PV-Assisted charging station of electric vehicles based on charging service price;Fangyu Chang etal.;《2017 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific)》;20171231;全文 * |
| 抑制风电并网影响的储能系统调峰控制策略设计;李军徽 等;《中国电力》;20140705;第47卷(第7期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109256802A (en) | 2019-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bhattacharya et al. | Managing energy storage in microgrids: A multistage stochastic programming approach | |
| Jabr et al. | Robust multi-period OPF with storage and renewables | |
| CN106233571B (en) | Load scheduling in multi-battery devices | |
| CN110247411B (en) | Dynamic energy distribution method for user-side Internet of things intelligent optical storage equipment | |
| US9798367B2 (en) | Controlling supply of power to computing devices with dynamically variable energy capacity | |
| US20100257529A1 (en) | Efficient systems and methods for consuming and providing power | |
| Leithon et al. | Demand response and renewable energy management using continuous-time optimization | |
| CN108988467B (en) | Power utilization strategy generation method and device | |
| CN112858938B (en) | Electric quantity calculation method and device, storage medium and electronic equipment | |
| Li et al. | CTS2M: concurrent task scheduling and storage management for residential energy consumers under dynamic energy pricing | |
| CN110783970B (en) | Charging method, device, charging terminal and computer readable storage medium | |
| CN109256802B (en) | Peak-shaving power supply control method and device | |
| CN112736918A (en) | Two-stage optimization scheduling method, device and equipment for source storage and load coordination in micro-grid | |
| CN110544950B (en) | Energy storage battery charging and discharging control method, device and equipment | |
| CN115940274A (en) | Optical storage system configuration method, device and medium | |
| CN115456425A (en) | Voltage adjustment method, device, equipment, storage medium and computer program product | |
| JP5731913B2 (en) | Storage battery charge / discharge control device, power control system, and storage battery charge / discharge control method | |
| CN112701709B (en) | Power supply control method and device for base station and electronic equipment | |
| Chetto et al. | Real-time scheduling for energy harvesting sensors | |
| CN109409574B (en) | Processing method of load fluctuation characteristics | |
| CN114461003A (en) | Output power adjusting method, device and socket | |
| CN109190789B (en) | Medium-and-long-term wind power prediction method and device, computer equipment and storage medium | |
| US20180233910A1 (en) | Energy management device, energy management method, and energy management program | |
| Goguri et al. | A distributed, real-time and non-parametric approach to demand response in the smart grid | |
| CN116523193B (en) | Virtual power plant energy storage scheduling method and device, electronic equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |