CN104915559B - A kind of electrical equipment determines method and system - Google Patents
A kind of electrical equipment determines method and system Download PDFInfo
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- CN104915559B CN104915559B CN201510316338.2A CN201510316338A CN104915559B CN 104915559 B CN104915559 B CN 104915559B CN 201510316338 A CN201510316338 A CN 201510316338A CN 104915559 B CN104915559 B CN 104915559B
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Abstract
The present invention relates to electronic technology field, discloses a kind of electrical equipment and determines method and system, to solve accurately determine the technical problem of the quantity for the electrical equipment that every one kind power bracket is included in multiple load system in the prior art.This method is applied in a multiple load system, including：When multiple load system is in multiple and different stable states, determine to be in the electrical equipment quantity of opening under each stable state in every class power bracket；Based on electrical equipment quantity, determine that electrical equipment under every class power bracket is in the total degree of opening；The ratio for obtaining the electrical equipment in each power bracket is calculated based on total degree；The total quantity of ratio and electrical equipment based on electrical equipment, determines the quantity of the electrical equipment that each power bracket is included in multiple load system.The technique effect of the quantity for the electrical equipment that can accurately determine to be included in multiple load system per one kind power bracket is reached.
Description
Technical Field
The invention relates to the technical field of electronics, in particular to a method and a system for determining electric equipment.
Background
At present, in the field of load decomposition, two main technical modes are mainly used for realizing load decomposition: an intrusive load decomposition mode and a non-intrusive load decomposition mode.
The intrusive load decomposition method needs to install a load monitoring device at each electric device side, and then can determine whether the corresponding electric device is in an on state or not according to the load monitoring device at the electric device side. Although the method can effectively realize the energy consumption monitoring of each electric device, the method is inconvenient for large-scale commercial popularization due to large installation quantity, high cost and inconvenient maintenance.
The non-intrusive load decomposition method needs to install a monitoring module at an inlet of a monitored power bus, monitors the total power consumption of the power bus through the monitoring module, and further decomposes the load through the change of the total power consumption, the scheme needs an observation window with a certain time length, and the longer the observation time window is, the more favorable the identification of the load working type and the improvement of the load decomposition precision are, and the larger the calculation amount of algorithm processing of the scheme is, so that the instantaneity of the method on load decomposition is insufficient, and the decomposition result is far behind the working state of the load to a certain extent. In the application process, a high-performance CPU or MCU is required to complete algorithm processing, thereby increasing the system cost.
In the prior art, the number of the electric equipment contained in each type of power range cannot be accurately known, so that the load decomposition precision is low.
Disclosure of Invention
The invention provides a method and a system for determining electric equipment, which are used for solving the technical problem that the number of the electric equipment contained in each type of power range in a multi-load system cannot be accurately determined in the prior art.
In a first aspect, an embodiment of the present invention provides a method for determining an electrical device, where the method is applied to a multi-load system, where the multi-load system includes electrical devices in at least two types of power ranges, and the method includes:
when the multi-load system is in a plurality of different stable states, determining the number of the electric equipment in the starting state in each type of power range in each stable state;
determining the total times of the electric equipment in the opening state under each type of power range based on the quantity of the electric equipment;
calculating and obtaining the proportion of the electric equipment in each power range based on the total times;
and determining the number of the electric equipment contained in each power range in the multi-load system based on the proportion of the electric equipment and the total number of the electric equipment.
Optionally, the number of the electric devices included in each power range is determined by the following formula:
wherein n is j Indicating the number of electrical devices included in the jth power range;
n represents the total number of the electric devices;
the proportion of the consumers in the jth power range is indicated.
Optionally, after the determining the number of the electric devices included in each power range in the multi-load system, the method further includes:
and determining the power of each electric device in each type of power range.
Optionally, after determining the power of each electric device in each type of power range, the method further includes:
acquiring a total power value at a first moment;
and determining the user equipment information in the on state at the first moment based on the total power value at the first moment and the power of each piece of electric equipment in each type of power range.
Optionally, after determining the power of each electric device in each type of power range, the method further includes:
determining the power value consumed by the electric equipment in each type of power range in each stable state;
and determining the total energy consumed by each type of electric equipment in the observation time based on the power value.
Optionally, the power value consumed by the electric device in each type of power range is calculated by the following formula:
wherein Q is j (k) Representing the power value consumed by the electric equipment in the jth power range in the kth steady state;
b ij the value of (1) indicates that the ith electric equipment belongs to the jth power range, and b ij The value of (1) is 0, which indicates that the ith electric equipment does not belong to the jth power range;
when a is i (k) If not, it indicates that the ith electric equipment is on in the kth stable state, and if a is i (k) When =0, the ith electric equipment is turned off in the kth stable state;
p i indicating the power of the ith powered device.
Optionally, the total energy is calculated by the following formula:
wherein E is j Representing the total energy consumed by the powered device in the jth power range during the observation time;
T j (k) The time duration of the consumer in the jth power range in the kth steady state is indicated.
Optionally, after determining the total energy consumed by each type of electric device in the observation time based on the power value, the method further includes:
and determining the proportion of the energy consumed by each type of electric equipment in the observation time.
Optionally, the proportion of energy consumed by each type of electric equipment is calculated by the following formula:
wherein E is j Representing the total energy consumed by the powered device in the jth power range during the observation time;
representing the total energy consumed by all consumers during the observation time.
In a second aspect, an embodiment of the present invention provides an electrical device determination system, which is applied to a multi-load system, where the multi-load system includes electrical devices in at least two power ranges, and the electrical device determination system includes:
the first determining module is used for determining the number of the electric equipment in the starting state in each type of power range in each stable state when the multi-load system is in a plurality of different stable states;
the second determining module is used for determining the total times of the electric equipment in the starting state under each type of power range based on the number of the electric equipment;
the calculating module is used for calculating and obtaining the proportion of the electric equipment in each power range based on the total times;
and a third determining module, configured to determine, based on the proportion of the electrical devices and the total number of the electrical devices, the number of electrical devices included in each power range in the multi-load system.
Optionally, the third determining module is specifically configured to determine the number of the electric devices included in each power range by using the following formula:
wherein n is j Represents the number of electric devices included in the jth power range;
n represents the total number of the electric devices;
the proportion of the consumers in the jth power range is indicated.
Optionally, the system further includes:
and a fourth determining module, configured to determine the power of each electrical device in each power range after determining the number of the electrical devices included in each power range in the multi-load system.
Optionally, the system further includes:
the obtaining module is used for obtaining the total power value of the first moment after determining the power of each electric device in each type of power range;
and a fifth determining module, configured to determine, based on the total power value at the first time and the power of each electrical device in each type of power range, user equipment information that is in an on state at the first time.
Optionally, the system further includes:
a sixth determining module, configured to determine, after determining the power of each electrical device in each type of power range, a power value consumed by the electrical device in each type of power range in each stable state;
and the seventh determining module is used for determining the total energy consumed by each type of electric equipment in the observation time based on the power value.
Optionally, the sixth determining module is configured to calculate the power value consumed by the electrical device in each type of power range according to the following formula:
wherein Q is j (k) Representing the power value consumed by the electric equipment in the jth power range in the kth steady state;
b ij the value of (1) indicates that the ith electric equipment belongs to the jth power range, and b ij The value of (1) is 0, which indicates that the ith electric equipment does not belong to the jth power range;
when a is i (k) That is, if 1, the ith electric equipment is turned on in the kth stable state, and if a i (k) If =0, the ith electric equipment is turned off in the kth stable state;
p i indicating the power of the ith powered device.
Optionally, the seventh determining module is configured to calculate the total energy according to the following formula:
wherein E is j Representing the total energy consumed by the powered device in the jth power range during the observation time;
T j (k) The time duration of the consumer in the jth power range in the kth steady state is indicated.
Optionally, the system further includes:
and the eighth determining module is used for determining the proportion of the energy consumed by each type of electric equipment in the observation time after determining the total energy consumed by each type of electric equipment in the observation time based on the power value.
Optionally, the eighth determining module is configured to calculate a proportion of energy consumed by each type of electrical device according to the following formula:
wherein E is j Representing the total energy consumed by the powered device in the jth power range during the observation time;
representing the total energy consumed by all consumers during the observation time.
The invention has the following beneficial effects:
in the embodiment of the present invention, a method for determining a powered device is provided, and is applied to a multi-load system, where the multi-load system includes powered devices in at least two types of power ranges, and the method includes: when the multi-load system is in a plurality of different stable states, determining the number of the electric equipment in the starting state in each type of power range in each stable state; determining the total times of the electric equipment in the starting state under each type of power range based on the number of the electric equipment; calculating and obtaining the proportion of the electric equipment in each power range based on the total times; and determining the number of the electric equipment contained in each power range in the multi-load system based on the proportion of the electric equipment and the total number of the electric equipment. Therefore, the technical effect that the number of the electric equipment contained in each type of power range in the multi-load system can be accurately determined is achieved, and the precision of load decomposition can be further improved.
Drawings
FIG. 1 is a flowchart of a method for determining a powered device according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for determining electric equipment information in an on state at a first time according to an embodiment of the present invention;
fig. 3 is a flowchart of determining total energy consumed by each type of electric equipment within an observation time in the electric equipment determination method according to the embodiment of the present invention;
fig. 4 is a block diagram of a powered device determination system according to an embodiment of the present invention.
Detailed Description
The invention provides a method and a system for determining electric equipment, which are used for solving the technical problem that the quantity of the electric equipment contained in each type of power range in a multi-load system cannot be accurately determined in the prior art.
In order to solve the technical problems, the general idea of the embodiment of the present application is as follows:
the utility model provides a consumer determining method, which is applied to a multi-load system, wherein the multi-load system comprises at least two types of power ranges of consumers, and the method comprises the following steps: when the multi-load system is in a plurality of different stable states, determining the number of the electric equipment in the starting state in each type of power range in each stable state; determining the total times of the electric equipment in the opening state under each type of power range based on the quantity of the electric equipment; calculating and obtaining the proportion of the electric equipment in each power range based on the total times; and determining the number of the electric equipment contained in each power range in the multi-load system based on the proportion of the electric equipment and the total number of the electric equipment. Therefore, the technical effect that the number of the electric equipment contained in each type of power range in the multi-load system can be accurately determined is achieved, and the precision of load decomposition can be further improved.
In order to better understand the technical solutions of the present invention, the following detailed descriptions of the technical solutions of the present invention are provided with the accompanying drawings and the specific embodiments, and it should be understood that the specific features in the embodiments and the examples of the present invention are the detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features in the embodiments and the examples of the present invention may be combined with each other without conflict.
In a first aspect, an embodiment of the present invention provides a method for determining an electric device, which is applied to a multi-load system, where the multi-load system includes electric devices in at least two power ranges, and please refer to fig. 1, the method includes:
step S101: when the multi-load system is in a plurality of different stable states, determining the number of the electric equipment in the starting state in each type of power range in each stable state;
step S102: determining the total times of the electric equipment in the opening state under each type of power range based on the quantity of the electric equipment;
step S103: calculating and obtaining the proportion of the electric equipment in each power range based on the total times;
step S104: and determining the number of the electric equipment contained in each power range in the multi-load system based on the proportion of the electric equipment and the total number of the electric equipment.
For example, the electric devices in the multi-load system can be divided into four power ranges, specifically: other electric devices (< 300 w), low-power electric devices (300 w-700 w), medium-power electric devices (700 w-1500 w), and high-power electric devices (> 1500 w), and of course, the electric devices may be divided into other power ranges, which are not listed in detail and are not limited in this embodiment of the present invention.
The steady state in step S101 refers to a period of time in which there is no turning on or off operation of the electric device and the power consumption value remains steady.
In step S101, a power variation curve of the multi-load system may be obtained, where the power variation curve represents the total power of the multi-load system at different times, and then, for each sampling point in the power variation curve, the value of the sampling point may be compared with the value of an adjacent sampling point, and if the difference is greater than a preset threshold, it indicates that the power of the sampling point suddenly changes, for example: and then each power sampling point can correspond to a stable state of the multi-load system.
In an initial stage, all the electric devices of the multi-load system may be controlled to be in a closed state, and then, a power variation D (k) = | P (k) -P (k-1) | between adjacent stable states is obtained, so as to determine the power of the electric device in the open state, and divide D (k) into various categories, for example: if at a certain moment, the power increment D (k) =500W, it indicates that a low-power electrical appliance is started in the system; if at a certain moment, the power reduction D (k) =500W, a low-power electric appliance in the system is closed; and then the turn-on and turn-off times of the electric equipment with different powers can be determined through the power sudden change values of the plurality of power sampling points.
In step S102, the number of times of state changes of the electric device that is turned on or turned off in each stable state may be summed, so as to obtain the total number of times of state changes of the electric device.
For example, assuming that the power step values D (k) of the multi-load system at 30 power sampling points are obtained by co-sampling, the number of the electric devices with D (k) in each power range is shown in table 1, and the total number of times of state changes of the electric devices can be obtained as 30.
TABLE 1
| Kind of equipment | Others are | Low power | Medium power | High power |
| Number of | 4 | 10 | 6 | 10 |
In step S103, the proportion of the electric devices in each power range can be calculated and obtained through the following formula:
wherein k is j Representing the total number of times the powered device of the jth power range is in an on or off state;
k represents the total number of times all the consumers are in the on or off state.
Further, the proportion of the electric devices in each power range can be calculated as follows:
the proportion of other electric equipment is as follows: 4/(4 +10+7+ 9) =4/30
The proportion of the low-power electric equipment is as follows: 10/30
The proportion of the medium-power electric equipment is as follows: 6/30
The proportion of the high-power electric equipment is as follows: 10/30
In step S104, the number of electric devices included in each power range may be determined according to the following formula:
wherein n is j Indicating the number of electrical devices included in the jth power range;
n represents the total number of the electric devices;
the proportion of the consumers in the jth power range is indicated.
The total number of the electric devices may be input by a system user with multiple loads, and assuming that the total number of the electric devices is 15 (of course, other values may also be used, and the embodiment of the present invention is not limited), the number of the electric devices included in each power range may be calculated as follows:
the number of other electric devices is: [4/30 × 15] =2
The number of the low-power electric devices is [10/30 × 15] =5
The number of the medium-power electric equipment is as follows: [6/30 × 15] =3
The number of the high-power electric equipment is as follows: [10/30 × 15] =5
As a further preferred embodiment, after determining the number of electric devices included in each power range in the multi-load system based on step S104, the method further includes:
and determining the power of each electric device under each type of power range.
In the specific implementation process, the power variation D (k) corresponding to the jth power range can be clustered, and the cluster number is the electricity utilization number n of the jth class of electric appliances j After the clustering is finished, the value of the clustering center is p of each electric device in the j power range i . For example, the jth power range is given by the equation [2 ]]Calculate n j And if the power is not less than 4, 4 clustering centers can be obtained after clustering, and the value of each clustering center corresponds to the average power of 4 electric equipment in the j-th class of electric equipment.
As a further preferred embodiment, after determining the power of each electric device in each power range, referring to fig. 2, the method further includes:
step S201: acquiring a total power value at a first moment;
step S202: and determining the user equipment information in the on state at the first moment based on the total power value at the first moment and the power of each piece of electric equipment in each type of power range.
In step S201, at a first time, the total power value at the first time may be detected and obtained by a power detector provided in the multi-load system.
In step S202, it is assumed that there are N electric devices in a household, and the state of each electric device is denoted as a i (t) when a i (t) =1 indicates that the ith electric equipment is turned on at the time t, and when a i (t) =0 indicates thatthe ith electric appliance is turned off at the time t; average power of each electrical appliance is p i (for multi-state appliances, p i Is the average power of the appliance after it is turned on); the observed total power sequence of the electrical appliances is P (t), so we can get the equation:
since P (t) is known (i.e. the total power value at the first instant), P i Is also known, so a can be inferred by the above apparatus i The value of (t), i.e. the user equipment information in the on state at the first moment.
Where, given that there are K steady states in total during the observation time, the total power for each steady state is P (K), the starting time is S (K), and the duration is T (K), then at the kth steady state, equation [3] can be written as:
wherein the content of the first and second substances,
as a further preferred embodiment, after determining the power of each electric device in each power range, referring to fig. 3, the method further includes:
step S301: determining the power value consumed by the electric equipment in each type of power range in each stable state;
step S302: and determining the total energy consumed by each type of electric equipment in the observation time based on the power value.
In step S301, the power value consumed by the electric device in each type of power range may be calculated by the following formula:
wherein Q is j (k) Representing the power value consumed by the electric equipment in the jth power range in the kth stable state;
b ij the value of (1) indicates that the ith electric equipment belongs to the jth power range, and b ij The value of (1) is 0, which indicates that the ith electric equipment does not belong to the jth power range;
when a is i (k) If not, it indicates that the ith electric equipment is on in the kth stable state, and if a is i (k) When =0, the ith electric equipment is turned off in the kth stable state;
p i indicating the power of the ith powered device.
The total energy may be calculated in step S302 by the following formula:
wherein, E j Representing the total energy consumed by the powered device in the jth power range during the observation time;
T j (k) The time duration of the consumer in the jth power range in the kth steady state is indicated.
As a further preferred embodiment, after determining the total energy consumed by each type of electric devices within the observation time based on step S302, the method further comprises: and determining the proportion of the energy consumed by each type of electric equipment in the observation time.
The energy consumption proportion of each type of electric equipment can be calculated through the following formula:
wherein E is j Representing the total energy consumed by the powered device in the jth power range during the observation time;
representing the total energy consumed by all consumers during the observation time.
Through the scheme, the energy consumption proportion of the electric equipment in each type of electric utilization range can be determined, and the energy consumption of the electric equipment in the multi-load system can be prompted.
In a second aspect, based on the same inventive concept, an embodiment of the present invention provides an electrical device determination system, which is applied to a multi-load system, where the multi-load system includes electrical devices with at least two types of power ranges, and referring to fig. 4, the electrical device determination system includes:
the first determining module 40 is configured to determine, when the multi-load system is in a plurality of different stable states, the number of electric devices in an on state in each type of power range in each stable state;
a second determining module 41, configured to determine, based on the number of the electrical devices, a total number of times that the electrical devices are in an on state in each type of power range;
a calculating module 42, configured to calculate and obtain a proportion of the electric devices in each power range based on the total number of times;
a third determining module 43, configured to determine, based on the proportion of the electrical devices and the total number of the electrical devices, the number of electrical devices included in each power range in the multi-load system.
Optionally, the third determining module 43 is specifically configured to determine the number of electric devices included in each power range through the following formula:
wherein n is j Represents the number of electric devices included in the jth power range;
n represents the total number of the electric devices;
the proportion of the consumers in the jth power range is indicated.
Optionally, the system further includes:
and a fourth determining module, configured to determine the power of each electrical device in each power range after determining the number of the electrical devices included in each power range in the multi-load system.
Optionally, the system further includes:
the obtaining module is used for obtaining a total power value of a first moment after determining the power of each electric device in each type of power range;
and a fifth determining module, configured to determine, based on the total power value at the first time and the power of each electrical device in each type of power range, user equipment information that is in an on state at the first time.
Optionally, the system further includes:
a sixth determining module, configured to determine, after determining the power of each electrical device in each type of power range, a power value consumed by the electrical device in each type of power range in each stable state;
and the seventh determining module is used for determining the total energy consumed by each type of electric equipment in the observation time based on the power value.
Optionally, the sixth determining module is configured to calculate the power value consumed by the electric device in each type of power range by using the following formula:
wherein Q j (k) Representing the power value consumed by the electric equipment in the jth power range in the kth stable state;
b ij a value of (1) indicates the firsti electric devices belong to the jth power range, b ij The value of (1) is 0, which indicates that the ith electric equipment does not belong to the jth power range;
when a is i (k) If not, it indicates that the ith electric equipment is on in the kth stable state, and if a is i (k) When =0, the ith electric equipment is turned off in the kth stable state;
p i indicating the power of the ith powered device.
Optionally, the seventh determining module is configured to calculate the total energy by the following formula:
wherein, E j Representing the total energy consumed by the powered device in the jth power range during the observation time;
T j (k) Representing the powered device duration of the jth power range in the kth steady state.
Optionally, the system further includes:
and the eighth determining module is used for determining the proportion of the energy consumed by each type of electric equipment in the observation time after determining the total energy consumed by each type of electric equipment in the observation time based on the power value.
Optionally, the eighth determining module is configured to calculate a proportion of energy consumed by each type of electrical device according to the following formula:
wherein E is j Representing the total energy consumed by the powered device in the jth power range during the observation time;
indicating that all the electric equipment is consumed within the observation timeThe total energy consumed.
One or more embodiments of the invention have at least the following beneficial effects:
in an embodiment of the present invention, a method for determining an electric device is provided, and is applied to a multi-load system, where the multi-load system includes electric devices in at least two types of power ranges, and the method includes: when the multi-load system is in a plurality of different stable states, determining the number of electric equipment in an on state in each type of power range in each stable state; determining the total times of the electric equipment in the starting state under each type of power range based on the number of the electric equipment; calculating and obtaining the proportion of the electric equipment in each power range based on the total times; and determining the number of the electric equipment contained in each power range in the multi-load system based on the proportion of the electric equipment and the total number of the electric equipment. Therefore, the technical effect of accurately determining the number of the electric equipment contained in each type of power range in the multi-load system is achieved, and the precision of load decomposition can be further improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (10)
1. An electric device determination method is applied to a multi-load system, wherein the multi-load system comprises electric devices with at least two types of power ranges, and the method comprises the following steps:
when the multi-load system is in a plurality of different stable states, acquiring a power change curve of the multi-load system, wherein each power sampling point in the power change curve corresponds to one stable state of the multi-load system;
acquiring power variation between adjacent stable states, determining the power of equipment in an open state according to the power variation, and dividing the power variation into various power categories;
determining the times of opening and closing of different power electric equipment according to the power variation of the plurality of power sampling points, and further determining the number of the electric equipment in the opening state in each type of power range in each stable state;
determining the total times of the electric equipment in the starting state under each type of power range based on the number of the electric equipment;
calculating and obtaining the proportion of the electric equipment in each type of power range based on the total times;
and determining the number of the electric equipment contained in each type of power range in the multi-load system based on the proportion of the electric equipment and the total number of the electric equipment.
2. The method of claim 1, wherein the number of powered devices included in each type of power range is determined by the following equation:
wherein n is j Indicating the number of electrical devices included in the jth power range;
n represents the total number of the electric devices;
representing the proportion of the electric devices in the jth power range; k is a radical of j The electric equipment representing the jth power range is in an on or off stateThe total number of times;
k represents the total number of times all consumers are in the on or off state.
3. The method of claim 1, wherein after the determining the number of powered devices included in each type of power range in the multi-load system, the method further comprises:
and determining the power of each electric device in each type of power range.
4. The method of claim 3, wherein after said determining the power of each powered device at each power class range, the method further comprises:
acquiring a total power value at a first moment;
and determining the user equipment information in the on state at the first moment based on the total power value at the first moment and the power of each piece of electric equipment in each type of power range.
5. The method of claim 3, wherein after said determining the power of each powered device for each type of power range, the method further comprises:
determining the power value consumed by the electric equipment in each type of power range in each stable state;
and determining the total energy consumed by each type of electric equipment in the observation time based on the power value.
6. The method of claim 5, wherein the amount of power consumed by the powered device in each type of power range is calculated by the following equation:
wherein Q is j (k) Representing the power value consumed by the electric equipment in the jth power range in the kth steady state;
b ij the value of (1) indicates that the ith electric equipment belongs to the jth power range, and b ij The value of (1) is 0, which indicates that the ith electric equipment does not belong to the jth power range;
when a is i (k) If not, it indicates that the ith electric equipment is on in the kth stable state, and if a is i (k) When =0, the ith electric equipment is turned off in the kth stable state;
p i indicating the power of the ith powered device.
7. The method of claim 6, wherein the total energy is calculated by the formula:
wherein, E j Representing the total energy consumed by the powered device in the jth power range during the observation time;
T j (k) The time duration of the consumer in the jth power range in the kth steady state is indicated.
8. The method of claim 5, wherein after said determining the total energy consumed by each type of powered device during the observation time based on the power value, the method further comprises:
and determining the proportion of the energy consumed by each type of electric equipment in the observation time.
9. The method of claim 8, wherein the proportion of energy consumed by each type of consumer is calculated by the following formula:
wherein E is j Representing the total energy consumed by the powered device in the jth power range during the observation time;
representing the total energy consumed by all consumers during the observation time.
10. An electrical device determination system, applied to a multi-load system, wherein the multi-load system includes electrical devices with at least two types of power ranges, the electrical device determination system comprising:
the device comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for acquiring a power change curve of the multi-load system when the multi-load system is in a plurality of different stable states, and each power sampling point in the power change curve corresponds to one stable state of the multi-load system;
acquiring power variation between adjacent stable states, determining the power of equipment in an on state according to the power variation, and dividing the power variation into various power categories;
determining the times of opening and closing of different power electric equipment according to the power variation of the plurality of power sampling points, and further determining the number of the electric equipment in the opening state in each type of power range in each stable state;
the second determining module is used for determining the total times of the electric equipment in the starting state under each type of power range based on the number of the electric equipment;
the calculating module is used for calculating and obtaining the proportion of the electric equipment in each type of power range based on the total times;
and a third determining module, configured to determine, based on the proportion of the electric devices and the total number of the electric devices, the number of electric devices included in each type of power range in the multi-load system.
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