CN109103944B - Power distribution method, device, equipment and storage medium - Google Patents
Power distribution method, device, equipment and storage medium Download PDFInfo
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- CN109103944B CN109103944B CN201810993755.4A CN201810993755A CN109103944B CN 109103944 B CN109103944 B CN 109103944B CN 201810993755 A CN201810993755 A CN 201810993755A CN 109103944 B CN109103944 B CN 109103944B
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- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
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- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
Abstract
The embodiment of the invention discloses a power distribution method, a device, equipment and a storage medium, wherein the method comprises the following steps: acquiring a device group with the highest priority as a target device group; calculating a target power value according to the total target power value and the current full-network occupied power value, wherein the target power value is a power value planned to be distributed to a target equipment group; determining the distribution power value of each device in the target device group according to the target power value; and updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the ending condition is met. The embodiment of the invention ensures that the power distribution is more flexible and accurate, and improves the production efficiency and the economic benefit of the power generation equipment.
Description
Technical Field
The embodiment of the invention relates to the technical field of automatic control of power systems, in particular to a power distribution method, a power distribution device, power distribution equipment and a storage medium.
Background
The new energy has important positive significance in the aspects of protecting ecological environment, promoting sustainable development and the like as clean, safe and efficient energy, and is increasingly paid more attention by people. With the rapid development of new energy power generation technology, the proportion of new energy power generation stations such as wind power stations, photovoltaic stations and the like in the total installed capacity of a power grid is increased day by day.
In order to ensure the power quality and stability of a power grid system when the new energy electric field operates, the new energy electric field needs to be effectively scheduled and actively controlled. The traditional active control method is used for distributing the generated power in proportion or in equal proportion according to margin, but the existing power distribution method is single and poor in flexibility, cannot be adjusted according to the self condition of equipment in a power plant, is low in accuracy, and further cannot meet the higher requirement of a power grid system on a new energy power plant.
Disclosure of Invention
Embodiments of the present invention provide a power allocation method, apparatus, device, and storage medium, so as to solve the problems of poor flexibility and low accuracy of power allocation in the prior art.
In a first aspect, an embodiment of the present invention provides a power allocation method, including:
acquiring a device group with the highest priority as a target device group;
calculating a target power value according to a total target power value and a current full-network occupied power value, wherein the target power value is a power value planned to be distributed to the target equipment group;
determining the distribution power value of each device in the target device group according to the target power value;
and updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the ending condition is met.
In a second aspect, an embodiment of the present invention further provides a power distribution apparatus, where the apparatus includes:
the priority module is used for acquiring a device group with the highest priority as a target device group;
a target power module, configured to calculate a target power value according to a total target power value and a current full-network occupied power value, where the target power value is a power value planned to be allocated to the target device group;
a power allocation module, configured to determine, according to the target power value, a power allocation value of each device in the target device group;
and the return module is used for updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the end condition is met.
In a third aspect, an embodiment of the present invention further provides an apparatus, where the apparatus includes:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the power allocation method as described above.
In a fourth aspect, 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 power allocation method described above.
The method and the device for allocating the power of the target equipment group comprise the steps of obtaining the equipment group with the highest priority as the target equipment group, calculating the target power value allocated to the target equipment group according to the total target power value and the current full-network occupied power value, determining the allocated power value of each equipment in the target equipment group according to the target power value, updating the equipment group with the priority lower than that of the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the end condition is met. The method and the device realize that all the devices are divided into device groups with different priorities according to comprehensive factors such as electricity price and environmental factors, and the power is distributed according to the priorities of the device groups, so that the power distribution is more flexible and accurate, and the production efficiency and the economic benefit of the power generation device are improved.
Drawings
Fig. 1 is a flowchart of a power allocation method according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a power allocation main method according to a first embodiment of the present invention;
FIG. 3 is a flowchart of a power allocation method according to a second embodiment of the present invention;
FIG. 4 is a specific flowchart of performing power allocation according to a second embodiment of the present invention;
FIG. 5 is a flowchart of a power allocation method according to a third embodiment of the present invention;
FIG. 6 is another flow chart of a power allocation method according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of a power distribution apparatus according to a fourth embodiment of the present invention;
fig. 8 is a schematic structural diagram of an apparatus in the fifth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a power allocation method in a first embodiment of the present invention, where the present embodiment is applicable to a case of performing power allocation, and the method may be executed by a power allocation apparatus, and the apparatus may be implemented in a software and/or hardware manner, for example, the apparatus may be configured in a power allocation device. As shown in fig. 1, the method may specifically include:
and S110, acquiring the device group with the highest priority as a target device group.
Optionally, fig. 2 is a flowchart of a main power allocation method in a first embodiment of the present invention, and referring to fig. 2, when a power allocation device performs power allocation, a main flow of the power allocation device specifically includes: and step 11, starting to start a related program in the control equipment. The relevant programs are programs executed during power distribution, and preparation for power distribution is realized after the relevant programs are started. And step 12, intercepting the section data. The section data is a real-time active power value of each power generation device in the current power generation field, and can be periodically acquired for later use. The cross section is also called a power transmission cross section, and the power transmission cross section refers to a combination of elements for power transmission connecting different areas in a power system, and the combination of the elements comprises an alternating current line and an alternating current transformer, which are usually defined in advance by a scheduling expert. And step 13, obtaining an instruction. The command comprises a total target power value distributed to the power generation field by the power grid in a preset time period. And step 14, locking inspection. A lockout check is performed for each power plant within the power plant to check whether there is a power plant failure and whether the power plant voltage value exceeds the voltage threshold, and if the lockout check fails, execution returns to step 12, and if the lockout check passes, execution returns to step 15. And step 15, safety restraint. And judging whether the acquired total target power value exceeds the installed capacity of the power generation field, if so, returning to execute the step 12, and if not, executing the step 16. The installed capacity refers to the sum of rated active power values of power generation equipment actually installed in the power plant and represents the power generation capacity of the power plant. And step 16, distributing the strategy. I.e., a specific power allocation procedure, is described in detail below. And step 17, executing the strategy. After the power allocation is completed, the allocation is specifically executed according to the result of the power allocation. And step 18, ending. After the preset time period, the process continues to return to step 12, and power allocation is performed for the next time period.
In this embodiment, all power generation devices in one new energy farm are taken as an example for explanation. The power generation capacity of the power generation equipment in the new energy power generation field is different due to different factors such as geographical position, equipment performance and seasonal variation. And, current some new forms of energy power plants are the construction completion in early stage, because production needs, the power plant often can expand the scale dilatation construction, so can construct the electric field of second or more stages, electric field in every stage because the policy at that time is different, can enjoy different price of electricity subsidies. Therefore, when distributing power to power generation facilities in different stages, the problem of electricity prices needs to be considered.
That is, before allocating power to the devices in the power plant, the number of device groups and the number of devices included in each device group may be determined based on at least one of the electricity prices and environmental factors of the respective devices, and the priorities of the device groups may be set, in order of priority. The priority can be set in real time as required, and if the requirement of the power grid on the power generation field is to improve the power generation amount, the priority of the equipment group can be set from high to low according to the quality of the comprehensive factors, for example, the equipment group with the best comprehensive factors is set as the equipment group with the highest priority. If the requirement of the power grid on the power generation field is to reduce the power generation amount, the priority of the equipment group can be set according to the quality of the comprehensive factors from low to high. All the devices in the power generation field are divided into a plurality of device groups with different priorities, and the device group with the highest priority is used as a target device group. The comprehensive factors of the equipment group comprise the electricity price and the environmental factors of each equipment in the equipment group, and the environmental factors are determined by combining the power generation principle of the equipment. For example, the environmental factor of the wind power generation device is wind, and the environmental factor of the solar power generation device is illumination.
Illustratively, the priority of the equipment groups is set according to the electricity price, the number of the equipment groups and the number of the power generation equipment included in each equipment group are directly divided according to the electricity price, if a power plant includes three-phase equipment groups, the electricity price subsidy of the equipment group in the first phase is the highest, the electricity price subsidy of the equipment group in the second phase is lower, and the electricity price subsidy of the equipment group in the third phase is the lowest, at this time, the priority of the equipment group is the first phase, the second phase and the third phase, the equipment group in the first phase is the equipment group with the highest priority, and the equipment group in the third phase is the equipment group with the lowest priority. The priority of the equipment group is set through the electricity price, so that economic benefits can be generated as much as possible by subsidizing the equipment group with high electricity price.
And S120, calculating a target power value according to the total target power value and the current full-network occupied power value, wherein the target power value is a power value planned to be distributed to a target equipment group.
The power values in this embodiment are all active power values. The total target power value is a total power generation active power value required to be reached within preset time of the power plant and is obtained from a power grid. Because the requirement of the power grid on the power generation field can be to improve the power generation capacity or reduce the power generation capacity, the total target power value can be increased or reduced relative to the total real-time active power value, and the total real-time active power value is the sum of the real-time active power values of all the devices. The real-time active power value is real-time active power of the device, and the active power refers to an average value of integral of instantaneous power emitted or consumed by the load (or power consumed by a load resistor) in a period, that is, electric power for converting electric energy into other forms of energy (mechanical energy, light energy, heat energy and the like).
The current full-network occupied power value is a sum of a lower limit power value and a current allocated power value of each remaining device group, the remaining device groups are device groups of which target power values are not determined, for example, if there are 5 device groups, the first device group is a target device group, and at this time, the remaining device groups are other 4 device groups except the first device group; after the power allocation of the first device group is completed, the second device group is the target device group, and the remaining device groups are the other three device groups except the first device group and the second device group. The currently allocated power value is the sum of the allocated power values of the respective devices that have been currently allocated, and the allocated power value is the power value allocated for one device. And when the power distribution is not started, the current distributed power value is zero, and the current full-network occupied power value is the sum of the lower limit power values of the residual equipment groups. And when the target power value is calculated, the lower limit power value of the rest equipment group is reserved, so that the normal operation of all the equipment can be ensured, and the loss of the equipment is reduced.
The target power value is a power value planned to be allocated to the target equipment group, and after the total target power value and the current full-network occupied power value are obtained, the target power value is equal to the difference value between the total target power value and the current full-network occupied power value.
And S130, determining the distribution power value of each device in the target device group according to the target power value.
Wherein the assigned power value is a power value assigned to one device. Specifically, the allocated power value of each device in the target device group is determined according to the relationship between the target power value and the power threshold of the target device group.
Optionally, determining the allocated power value of each device in the target device group according to the target power value includes: if the target power value exceeds the power threshold of the target device group, the allocable power threshold of each device in the target device group is obtained, and the allocable power threshold is used as the allocation power value of each device.
Optionally, before determining the allocated power value of each device in the target device group according to the target power value, the method further includes: and acquiring an upper limit power value and a lower limit power value of all equipment of the power generation field. The upper limit power value refers to the maximum value that the active power of the equipment group can reach in the operation process, and the lower limit power value refers to the minimum value that the active power of the equipment group can reach in the operation process. Further, the power threshold includes a lower power value and an upper power value. If the target power value is greater than the real-time active power value of the target device group, the power threshold is an upper limit power value, and if the target power value is less than the real-time active power value of the target device group, the power threshold is a lower limit power value. The allocable power threshold refers to the maximum or minimum value that a single device may reach during operation.
Specifically, when the target power value exceeds the power threshold of the target device group, even if the real-time active power of each device in the target device group reaches the allocable power threshold, the real-time active power of the target device group cannot reach the target power value, that is, the target power value cannot be completely allocated to each device of the target device group. Therefore, the allocable power threshold of each device in the target device group is set as the allocated power value of each device to achieve maximum allocation of the target power value to each device of the target power group.
Optionally, determining an allocation power value of each device in the target device group according to the target power value, further includes: if the target power value does not exceed the power threshold of the target device group, determining the distribution power value of each device in the target device group according to a preset distribution algorithm, wherein the preset distribution algorithm comprises: a proportional allocation algorithm or a marginal allocation algorithm.
When the target power value does not exceed the power threshold of the target power group, it indicates that the target power value can be fully allocated to the devices of the target device group. At this time, the target power value is set to be allocated according to a preset allocation algorithm. The preset distribution algorithm comprises a proportion distribution algorithm or a margin distribution algorithm and the like. The proportional distribution algorithm is an algorithm for distributing according to a preset proportion, for example, the proportion can be an average proportion or a proportion set according to needs. The margin (namely power generation margin) of the equipment is the difference value between the power threshold value of the equipment and the real-time active power value, and the power is distributed according to the margin of each equipment after the margin of each equipment is calculated according to a margin distribution algorithm.
And S140, updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the end condition is met.
Specifically, after the allocated power value of each device in the target device group is determined each time, it is determined whether the end condition is currently met, and if the end condition is met, it is indicated that the total target power value is already allocated, and at this time, the allocation task may be ended. If the end condition is not met, the power distribution is required to be continued, at this time, the equipment group with the priority lower than that of the target equipment group is updated to the target equipment group, and the operation of calculating the target power value according to the total target power value and the current full-network occupied power value is returned to be executed. Optionally, the end condition comprises: the distribution power value or the total target power value existing in each device in all the device groups is equal to the current full-network occupied power value. The fact that the allocated power value already exists in each device in all the device groups means that the allocated power value has already been allocated to all the devices in the power plant. The total target power value being equal to the current full network occupation power value means that the total target power value has been allocated. And when the total target power value is equal to the current full-network occupied power value, taking the allocable power threshold of each device in the remaining device group as the allocated power value of each device.
Optionally, in order to ensure accuracy when power is allocated to the remaining device group, the current full-network occupied power value needs to be updated in real time according to the current allocation result, so as to ensure real-time performance and accuracy of the current full-network occupied power value. Accordingly, after the device group with a lower priority than the target device group is updated to the target device group, the embodiment further includes updating the current full-network occupied power value according to the allocated power value.
Updating the current full-network occupation power value according to the allocated power value may include: acquiring a lower limit power value of each residual equipment group, wherein the residual equipment group is an equipment group of which the target power value is not determined; updating the current allocated power value according to the allocated power value, wherein the current allocated power value is the sum of the currently determined allocated power values; and calculating the sum of each lower limit power value and the current distributed power value, and updating the current full-network occupied power value according to the sum.
Specifically, a remaining equipment group in the power plant for which the target power value has not been determined is acquired, and a lower limit power value of the remaining equipment group is acquired to calculate a sum of the lower limit power values. Wherein the sum of the lower power values indicates the power which is least required by the devices in the power plant which have not been power distributed yet. Further, the allocated power values of the devices in the target device group are added, and the current allocated power value is updated by the obtained sum value. At this time, the currently allocated power value indicates the power assumed by the device that has currently performed power allocation. The sum of the lower limit power values is added to the currently allocated power value, so that the current full-network occupied power value can be updated.
For example, if there are 5 device groups, a first device group is a target device group, after the allocation power value of each device in the target device group is determined, a second device group with a lower priority is updated to the target device group, at this time, the remaining device groups are three device groups except the first device group and the second device group, the current allocated power value is the sum of the allocation power values of the devices in the first device group, and the current network occupation power value is updated to the sum of the lower limit power values of the remaining device groups and the current allocated power value. At this time, the total target power value and the current full-network occupied power value are subtracted, so that a target power value capable of performing power distribution for the second device group can be obtained.
In this embodiment, a device group with the highest priority is obtained as a target device group, a target power value allocated to the target device group is calculated according to a total target power value and a current full-network occupied power value, an allocated power value of each device in the target device group is determined according to the target power value, a device group with a priority lower than the target device group is updated to the target device group, and an operation of calculating the target power value according to the total target power value and the current full-network occupied power value is performed until an end condition is satisfied. According to the embodiment, all the equipment is divided into equipment groups with different priorities according to comprehensive factors such as electricity price and environmental factors, and power is sequentially distributed in an iterative mode according to the priorities of the equipment groups on the basis of ensuring normal operation of the equipment in all the equipment groups, so that power distribution is more flexible and accurate, and the production efficiency and the economic benefit of the power generation equipment are improved.
Example two
Fig. 3 is a flowchart of a power allocation method according to a second embodiment of the present invention. On the basis of the above embodiments, the present embodiment further optimizes the power allocation method. Correspondingly, the method of the embodiment specifically includes:
s210, acquiring the device group with the highest priority as a target device group.
And S220, calculating a target power value according to the total target power value and the current full-network occupied power value, wherein the target power value is a power value planned to be distributed to a target equipment group.
Specifically, after the total target power value and the current full-network occupied power value are obtained, the target power value is equal to a difference between the total target power value and the current full-network occupied power value, and the target power value is a power value planned to be allocated to the target device group.
And S230, acquiring a first refusing device in the target device group.
The action refusing device is a device which refuses to execute the corresponding action when a preset execution instruction is met. In this embodiment, the rejection device includes an ascending rejection device, a descending rejection device, and an ascending rejection device, where the ascending rejection device is a device that rejects increasing the generated power, the descending rejection device is a device that rejects decreasing the generated power, and the ascending rejection device is a device that rejects increasing and decreasing the generated power. In the embodiment, the device that rejects in the target device group is referred to as a first device that rejects. If the target of the power generation field is to promote the generated energy, the first refusing equipment is to promote the refusing equipment and to lift the refusing equipment, if the target of the power generation field is to reduce the generated energy, the first refusing equipment is to drop the refusing equipment and to lift the refusing equipment.
Optionally, the device to be rejected in the target device group is obtained according to the history record, and the device to be rejected is taken as the first device to be rejected. The historical records are log records of all the devices in the power generation field, the log records store the work flows of all the devices, whether the devices normally execute the actions corresponding to the instructions can be judged according to the historical records of the target device group, and whether the devices are the devices which are refused to operate or not is further determined.
And S240, taking the difference value between the target power value and the real-time power value as the corrected target power value, wherein the real-time power value is the current actual power value of the first movement refusing device.
The real-time power value is a current actual power value (real-time active power value) of the first movement rejection equipment, and when the number of the first movement rejection equipment is multiple, the real-time power value is a sum of the real-time active power values of the first movement rejection equipment. Since the first device cannot execute the power adjustment command, the first device needs to be rejected during power allocation. Specifically, the difference between the target power value and the real-time power value is used as the corrected target power value, that is, the real-time power value of the first device for rejecting motion is used as the allocated power value of the device for rejecting motion, so that the allocated power value of the first device for rejecting motion is not included in the target power value, and the accuracy is improved.
S250, acquiring non-first refusing equipment in the target equipment group, wherein the non-first refusing equipment and the first refusing equipment form the target equipment group.
And taking the devices except the first refusing device in the target device group as non-first refusing devices.
And S260, determining the distribution power value of each device in the non-first device which rejects the power according to the target power value.
And determining the distribution power value of each device in a target device group according to the target power value, wherein the target device group is the target device group only comprising non-first movement refusing devices.
Optionally, determining the allocated power value of each device in the target device group according to the target power value includes: if the target power value exceeds the power threshold of the target device group, the allocable power threshold of each device in the target device group is obtained, and the allocable power threshold is used as the allocation power value of each device.
Optionally, determining an allocation power value of each device in the target device group according to the target power value, further includes: if the target power value does not exceed the power threshold of the target device group, determining the distribution power value of each device in the target device group according to a preset distribution algorithm, wherein the preset distribution algorithm comprises: a proportional allocation algorithm or a marginal allocation algorithm.
And S270, updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the end condition is met.
On the basis of the above-described embodiments, a specific procedure of performing power allocation is explained by way of an example. Fig. 4 is a specific flowchart of performing power allocation according to a second embodiment of the present invention, and as shown in fig. 4, the specific flowchart may include: step 21, the execution of the allocation starts. And step 22, acquiring the device group with the highest priority as a target device group. Step 23, a target power value is determined, which is a power value planned to be allocated to the target device group. And 24, acquiring the first device which is refused to move, and correcting the target power value. Specifically, the difference between the target power value and the real-time power value of the device which is rejected is used as the corrected target power value. Step 25, determining whether the target power value exceeds the power threshold, if yes, executing step 261, and if no, executing step 262. In step 261, the assignable power threshold value of each device in the target device group is set as an assigned power value. Step 262, determining the allocated power value of each device in the target device group according to a margin allocation algorithm or a proportional allocation algorithm. And 27, updating the current full-network occupied power value. And step 28, judging whether the ending condition is met. The termination condition may include: and if yes, executing step 29, and if no, returning to execute step 22. And step 29, finishing distribution.
In this embodiment, an equipment group with the highest priority is obtained as a target equipment group, a target power value allocated to the target equipment group is calculated according to a total target power value and a current full-network occupied power value, a first device to be rejected in the target equipment group is obtained, a difference value between the target power value and a real-time power value of the first device to be rejected is used as a corrected target power value, and an allocation power value of each device in non-first device to be rejected is determined according to the target power value; and updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the ending condition is met. According to the embodiment, all the equipment is divided into equipment groups with different priorities according to comprehensive factors such as electricity price and environmental factors, and power is sequentially distributed in an iterative mode according to the priorities of the equipment groups on the basis of ensuring normal operation of the equipment in all the equipment groups, so that power distribution is more flexible, and the production efficiency and the economic benefit of power generation equipment are improved; and the device which is refused to be moved is eliminated when the power is distributed, thereby further improving the accuracy of the power distribution.
EXAMPLE III
Fig. 5 is a flowchart of a power allocation method in a third embodiment of the present invention. The present embodiment further optimizes the power allocation method, and particularly optimizes the content of the above embodiment after the operation of calculating the target power value allocated to the target device group according to the total target power value and the current full-network occupied power value is performed back until the end condition is satisfied. When the ending condition is that each device in all the device groups has allocated the power value, the method of this embodiment specifically includes:
s310, determining a first unallocated power value according to the total target power value and the current full-network occupied power value.
If the ending condition is that the allocated power values of the devices in all the device groups already exist, the sum of the allocated power values of the devices in all the device groups may not reach the total target power value, and then the fact that the power values which are not allocated exist in the total target power value is indicated. At this time, after the operation of calculating the target power value allocated to the target device group according to the total target power value and the current full-network occupied power value is executed until the end condition is satisfied, the method further includes: and determining a first unallocated power value according to the total target power value and the current full-network occupied power value. And determining the difference value between the total target power value and the current full-network occupied power as a first unallocated power value. The first unassigned power value is a power value that has not been assigned in the total target power value.
Here, the allocated power value already exists in each device in all the device groups, and at this time, the lower limit power value of each remaining device group in the current full-network occupied power value is zero, which may also be understood as that the current full-network occupied power value is equal to the currently allocated power value.
S320, obtaining non-threshold devices in all the device groups, wherein the distribution power value of the non-threshold devices does not exceed the distributable power threshold of the non-threshold devices.
The non-threshold device is a maximum value or a minimum value which can be reached by the power in the operation process of the device and is not exceeded by the allocated power value, and the workload can be increased by the non-threshold device, so that the non-threshold devices in all the device groups can be obtained according to the history.
Specifically, if the goal of the power generation field is to increase the power generation amount, it is determined whether the allocated power value of the plant is higher than the maximum value that the power can reach during the operation of the plant, and if the goal of the power generation field is to decrease the power generation amount, it is determined whether the allocated power value of the plant is lower than the minimum value that the power can reach during the operation of the plant.
And S330, updating the distribution power value of the non-threshold device according to the first unallocated power value.
Acquiring non-threshold devices in all the device groups, and calculating a difference value between an allocation power value and an allocable power threshold of each non-threshold device, wherein an updated allocation power value of each non-threshold device is determined according to the difference value and a first unallocated power value, and the updated allocation power value may be the allocable power threshold or a power value close to the allocable power threshold. For example, if the power generation farm is targeted for increased power generation, the allocable power thresholds of the two non-threshold devices are 100 watts, the allocated power values are both 50 watts, and the first unallocated power value is 80 watts, the difference between the allocable power thresholds and the allocated power values of the two devices is calculated to be 50 watts, at this time, 50 watts may be allocated to one device, and 30 watts may be allocated to the other device, that is, the updated allocated power value of one device may be 100 watts, and the other device may be 80 watts. Meanwhile, 40 watts can be allocated to both devices, that is, the updated allocated power values of both devices are 90 watts.
And S340, updating the current full-network occupied power value according to the updated distribution power value.
And updating the current distributed power value according to the updated distributed power value of each non-threshold device, namely updating the current full-network occupied power value.
And S350, if the second unallocated power value is determined to exist according to the total target power value and the current full-network occupied power value, obtaining second refusing equipment in all the equipment groups.
Since the sum of the current allocated power values may not reach the total target power value after updating the allocated power values of the non-threshold devices in all the device groups, it is also necessary to determine whether there is a second unallocated power value after updating the allocated power values of the non-threshold devices in all the device groups. And if the difference value between the total target power value and the current full-network occupied power value is not zero, determining that a second unallocated power value exists.
Further, after the difference value between the total target power value and the current full-network occupied power value is used as a second unallocated power value, the movement refusing equipment in all the equipment groups is obtained according to the history record and is used as second movement refusing equipment.
And S360, identifying third refusing equipment in a normal working state in the second refusing equipment.
Due to the existence of the state recovery module in the equipment, the device which refuses to be moved can be recovered to be normal working equipment. Thus, the status of the denial device may change. Accordingly, whether rejection equipment in a normal working state exists in the second rejection equipment is set and identified, and if the state of any one of the second rejection equipment is in the normal working state, the state is used as third rejection equipment.
And S370, determining the allocated power value of the third refusing device according to the second unallocated power value.
Wherein the state of the third deactivating apparatus is actually a normal operating state, and therefore the second unallocated power value may be allocated to the third deactivating apparatus. At this time, the manner of determining the allocated power value of the third device to be rejected is the same as the manner of determining the allocated power value of the non-threshold device, and is not described herein again.
On the basis of the above-described embodiments, a specific procedure of multiple power allocations is described by way of an example. Fig. 6 is another flowchart of a power allocation method according to a third embodiment of the present invention, including: step 31, the allocation policy starts. I.e. checking all equipment and rejecting equipment which cannot work. Step 32, equipment lockout check. That is, each device in a normal working state is checked whether the voltage value exceeds the voltage threshold value or not, and the device which is refused to be moved is identified for saving. And step 33, judging whether the grid-connected point meets the requirements. And the grid-connected point is an access point of the current power generation field to the power grid, whether the real-time active power value of the grid-connected point meets the requirement of the power grid on the current power generation field is judged, if so, the step 34 is executed, and if not, the step 41 is executed. Step 34, whether the total target power value is greater than the total installed capacity. If yes, go to step 36, otherwise go to step 35. Step 35, allocation is performed. The process of performing the allocation is shown in fig. 3 and 4. In step 36, all devices use the installed capacity as the allocated power value, and then step 41 is executed. Step 37, determine whether there is a first unassigned power value. If yes, go to step 38, otherwise go to step 41. And step 38, acquiring non-threshold equipment and distributing. And step 39, judging whether a second unallocated power value exists or not. If yes, go to step 40, otherwise go to step 41. And step 40, identifying non-refusing equipment in the refusing equipment, and distributing. And step 41, finishing the distribution strategy. If the unallocated power value still exists in the total target power value after the step 40 is executed, the forced allocation is finished.
In the embodiment, the operation of calculating the target power value allocated to the target device group according to the total target power value and the current full-network occupied power value is returned to be executed in the above embodiment, and after the ending condition is met, if the ending condition is that the allocated power value already exists in each device in all the device groups and an unallocated power value exists, the unallocated power value is sequentially allocated to the non-upper-limit device and the movement refusing device in a normal state in the current movement refusing device through detection of the non-upper-limit device and re-identification of the current movement refusing device. In the embodiment, after the power is sequentially and iteratively distributed according to the priority of the equipment group, the power value which is not distributed yet is distributed for multiple times, so that the utilization rate of the equipment and the distribution accuracy are further improved.
Example four
Fig. 7 is a schematic structural diagram of a power distribution apparatus according to a fourth embodiment of the present invention. The present embodiment is applicable to the case of performing power allocation. The power distribution device provided by the embodiment of the invention can execute the power distribution method provided by any embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. The apparatus specifically includes a priority module 410, a target power module 420, an allocated power module 430, and a return module 440, wherein:
a priority module 410, configured to obtain a device group with a highest priority as a target device group;
a target power module 420, configured to calculate a target power value according to the total target power value and the current full-network occupied power value, where the target power value is a power value planned to be allocated to the target device group;
a power allocation module 430, configured to determine a power allocation value of each device in the target device group according to the target power value;
and a returning module 440, configured to update the device group with a priority lower than the target device group to the target device group, and return to perform the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until an end condition is met.
Optionally, the allocated power module 430 is specifically configured to:
if the target power value exceeds the power threshold of the target equipment group, acquiring the distributable power threshold of each equipment in the target equipment group, and taking the distributable power threshold as the distribution power value of each equipment;
if the target power value does not exceed the power threshold of the target device group, determining the distribution power value of each device in the target device group according to a preset distribution algorithm, wherein the preset distribution algorithm comprises: a proportional allocation algorithm or a marginal allocation algorithm.
Optionally, the apparatus further comprises an update module, the update module comprising:
a residual unit, configured to obtain a lower limit power value of each residual device group, where the residual device group is a device group for which a target power value is not determined;
a first updating subunit, configured to update a currently allocated power value according to the allocated power value, where the currently allocated power value is a sum of currently determined allocated power values;
and the second updating subunit is used for calculating the sum of each lower limit power value and the currently allocated power value and updating the current full-network occupied power value according to the sum.
Optionally, the apparatus further comprises: a rejection module, the rejection module comprising:
the first refusing unit is used for acquiring first refusing equipment in the target equipment group;
the first correction unit is used for taking the difference value between the target power value and the real-time power value as a corrected target power value, wherein the real-time power value is the current actual power value of the first movement rejection equipment;
the first non-refusing unit is used for acquiring non-first refusing equipment in the target equipment group, and the non-first refusing equipment and the first refusing equipment form the target equipment group;
and the second non-rejection unit is used for determining the distribution power value of each device in the non-first rejection devices according to the target power value.
Optionally, the end condition comprises:
the distribution power value or the total target power value existing in each device in all the device groups is equal to the current full-network occupied power value.
Optionally, the ending condition is that each device in all the device groups has allocated a power value, and the apparatus further includes: a first unassigned module, the first unassigned module comprising:
a first unallocated unit, configured to return to perform an operation of calculating a target power value allocated to the target device group according to the total target power value and the current full-network occupied power value, and determine a first unallocated power value according to the total target power value and the current full-network occupied power value until an end condition is satisfied;
a non-threshold unit, configured to acquire non-threshold devices in all device groups, where an allocation power value of a non-threshold device does not exceed an allocable power threshold of the non-threshold device;
a first updating unit for updating the allocated power value of the non-threshold device according to the first unallocated power value.
Optionally, the apparatus further comprises a second unassigned module, the second unassigned module comprising:
the second updating unit is used for updating the current full-network occupied power value according to the updated distribution power value after the distribution power value of the non-threshold equipment is updated according to the first unallocated power value;
the second refusing unit is used for acquiring second refusing equipment in all the equipment groups if a second unallocated power value is determined to exist according to the total target power value and the current full-network occupied power value;
the third refusing unit is used for identifying third refusing equipment in a normal working state in the second refusing equipment;
and the third updating unit is used for determining the distribution power value of the third rejection equipment according to the second unallocated power value.
In this embodiment, an equipment group with the highest priority is obtained as a target equipment group, a target power value allocated to the target equipment group is calculated according to a total target power value and a current full-network occupied power value, a first device to be rejected in the target equipment group is obtained, a difference value between the target power value and a real-time power value of the first device to be rejected is used as a corrected target power value, and an allocation power value of each device in non-first device to be rejected is determined according to the target power value; and updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the ending condition is met. According to the embodiment, all the equipment is divided into equipment groups with different priorities according to comprehensive factors such as electricity price and environmental factors, and power is sequentially distributed in an iterative mode according to the priorities of the equipment groups on the basis of ensuring normal operation of the equipment in all the equipment groups, so that power distribution is more flexible, and the production efficiency and the economic benefit of power generation equipment are improved; and the device which is refused to be moved is removed when the power is distributed, so that the accuracy of power distribution is further improved; in the embodiment, after the power is sequentially and iteratively distributed according to the priority of the equipment group, the power value which is not distributed yet is distributed for multiple times, so that the utilization rate of the equipment and the distribution accuracy are further improved.
EXAMPLE five
Fig. 8 is a schematic structural diagram of an apparatus in the fifth embodiment of the present invention. FIG. 8 illustrates a block diagram of an exemplary device 512 suitable for use in implementing embodiments of the present invention. The device 512 shown in fig. 8 is only an example and should not bring any limitations to the functionality or scope of use of the embodiments of the present invention.
As shown in fig. 8, device 512 is in the form of a general purpose device. Components of device 512 may include, but are not limited to: one or more processors 516, a storage device 528, and a bus 518 that couples the various system components including the storage device 528 and the processors 516.
Bus 518 represents one or more of any of several types of bus structures, including a memory device bus or memory device controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures. By way of example, such architectures include, but are not limited to, Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, enhanced ISA bus, Video Electronics Standards Association (VESA) local bus, and Peripheral Component Interconnect (PCI) bus.
A program/utility 540 having a set (at least one) of program modules 542 may be stored, for example, in storage 528, such program modules 542 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may include an implementation of a network environment. The program modules 542 generally perform the functions and/or methods of the described embodiments of the invention.
The device 512 may also communicate with one or more external devices 514 (e.g., keyboard, pointing terminal, display 524, etc.), with one or more terminals that enable a user to interact with the device 512, and/or with any terminals (e.g., network card, modem, etc.) that enable the device 512 to communicate with one or more other computing terminals. Such communication may occur via input/output (I/O) interfaces 522. Also, the device 512 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public Network such as the internet) via the Network adapter 520. As shown in FIG. 8, the network adapter 520 communicates with the other modules of the device 512 via the bus 518. It should be appreciated that although not shown, other hardware and/or software modules may be used in conjunction with the device 512, including but not limited to: microcode, end drives, Redundant processors, external disk drive Arrays, RAID (Redundant Arrays of Independent Disks) systems, tape drives, and data backup storage systems, among others.
The processor 516 executes various functional applications and data processing by running programs stored in the storage device 528, for example, implementing a power allocation method provided by an embodiment of the present invention, the method includes:
acquiring a device group with the highest priority as a target device group;
calculating a target power value according to a total target power value and a current full-network occupied power value, wherein the target power value is a power value planned to be distributed to the target equipment group;
determining the distribution power value of each device in the target device group according to the target power value;
and updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the ending condition is met.
EXAMPLE six
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a power allocation method provided in an embodiment of the present invention, where the method includes:
acquiring a device group with the highest priority as a target device group;
calculating a target power value according to a total target power value and a current full-network occupied power value, wherein the target power value is a power value planned to be distributed to the target equipment group;
determining the distribution power value of each device in the target device group according to the target power value;
and updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the ending condition is met.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or terminal. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. A method of power allocation, comprising:
acquiring a device group with the highest priority as a target device group;
calculating a target power value according to a total target power value and a current full-network occupied power value, wherein the target power value is a power value planned to be distributed to the target equipment group;
determining the distribution power value of each device in the target device group according to the target power value;
updating the equipment group with one priority lower than the target equipment group into the target equipment group, and returning to execute the operation of calculating the target power value according to the total target power value and the current full-network occupied power value until the end condition is met; the end condition includes: the current full-network occupied power value is equal to the current distributed power value or the total target power value existing in each device in all the device groups;
after the target power value is calculated according to the total target power value and the current full-network occupied power value, the method further comprises the following steps:
acquiring first refusing equipment in the target equipment group;
taking the difference value between the target power value and a real-time power value as a corrected target power value, wherein the real-time power value is a current actual power value of the first movement rejection equipment;
if the ending condition is that the allocated power value already exists in each device in all the device groups, the returning and executing the operation of calculating the target power value allocated to the target device group according to the total target power value and the current full-network occupied power value until the ending condition is met further includes:
determining a first unallocated power value according to the total target power value and the current full-network occupied power value;
acquiring non-threshold equipment in all equipment groups, wherein the distribution power value of the non-threshold equipment does not exceed the distributable power threshold of the non-threshold equipment;
updating an allocated power value for the non-threshold device based on the first unallocated power value; after the updating the allocated power value of the non-threshold device according to the first unallocated power value, the method further includes:
updating the current full-network occupied power value according to the updated distribution power value;
if a second unallocated power value is determined to exist according to the total target power value and the current full-network occupied power value, second refusing equipment in all equipment groups is obtained;
identifying third refusing equipment in a normal working state in the second refusing equipment;
and determining the allocated power value of the third movement refusing equipment according to the second unallocated power value.
2. The power allocation method according to claim 1, wherein the determining the allocated power value of each device in the target device group according to the target power value comprises:
if the target power value exceeds the power threshold of the target equipment group, acquiring an allocable power threshold of each equipment in the target equipment group, and taking the allocable power threshold as the allocation power value of each equipment;
if the target power value does not exceed the power threshold of the target device group, determining a distribution power value of each device in the target device group according to a preset distribution algorithm, where the preset distribution algorithm includes: a proportional allocation algorithm or a marginal allocation algorithm.
3. The power allocation method according to claim 1, wherein after updating the device group having a lower priority than the target device group to the target device group, the method further comprises:
acquiring a lower limit power value of each residual equipment group, wherein the residual equipment group is an equipment group of which the target power value is not determined;
updating the current distributed power value according to the distributed power value;
and calculating the sum of each lower limit power value and the current distributed power value, and updating the current full-network occupied power value according to the sum.
4. The power allocation method of claim 1,
the determining the allocated power value of each device in the target device group according to the target power value includes:
acquiring non-first refusing equipment in the target equipment group, wherein the non-first refusing equipment and the first refusing equipment form the target equipment group;
and determining the distribution power value of each device in the non-first device which rejects the power according to the target power value.
5. A power distribution apparatus, comprising:
the priority module is used for acquiring a device group with the highest priority as a target device group;
a target power module, configured to calculate a target power value according to a total target power value and a current full-network occupied power value, where the target power value is a power value planned to be allocated to the target device group;
a power allocation module, configured to determine, according to the target power value, a power allocation value of each device in the target device group;
a returning module, configured to update a device group with a priority lower than that of the target device group to the target device group, and return to perform an operation of calculating a target power value according to a total target power value and a current full-network occupied power value until an end condition is met; the end condition includes: the current full-network occupied power value is equal to the current distributed power value or the total target power value existing in each device in all the device groups;
a rejection module, the rejection module comprising:
the first refusing unit is used for acquiring first refusing equipment in the target equipment group;
the first correction unit is used for taking the difference value between the target power value and the real-time power value as a corrected target power value, wherein the real-time power value is the current actual power value of the first movement rejection equipment;
a first unassigned module, the first unassigned module comprising:
a first unallocated unit, configured to return to perform an operation of calculating a target power value allocated to the target device group according to the total target power value and the current full-network occupied power value, and determine a first unallocated power value according to the total target power value and the current full-network occupied power value until an end condition is satisfied;
a non-threshold unit, configured to acquire non-threshold devices in all device groups, where an allocation power value of a non-threshold device does not exceed an allocable power threshold of the non-threshold device;
a first updating unit for updating the allocated power value of the non-threshold device according to the first unallocated power value;
a second unassigned module, the second unassigned module comprising:
the second updating unit is used for updating the current full-network occupied power value according to the updated distribution power value after the distribution power value of the non-threshold equipment is updated according to the first unallocated power value;
the second refusing unit is used for acquiring second refusing equipment in all the equipment groups if a second unallocated power value is determined to exist according to the total target power value and the current full-network occupied power value;
the third refusing unit is used for identifying third refusing equipment in a normal working state in the second refusing equipment;
and the third updating unit is used for determining the distribution power value of the third rejection equipment according to the second unallocated power value.
6. A power distribution apparatus, characterized in that the apparatus comprises:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the power allocation method of any one of claims 1-4.
7. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the power allocation method according to any one of claims 1-4.
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