CN111191892A - Network loss calculation method and system for electric quantity system - Google Patents
Network loss calculation method and system for electric quantity system Download PDFInfo
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Abstract
The invention discloses a network loss calculation method and a network loss calculation system for an electric quantity system, wherein a gateway attribute is defined firstly, a subarea network loss gateway attribute of a certain area or a partial voltage network loss gateway attribute of a certain voltage grade of the certain area can be defined, an input class network loss component is configured for the defined gateway attribute of an input class, an output class network loss component is configured for the defined gateway attribute of an output class, and the electric quantity of a gateway electric meter is selected according to the mode that the electric quantity of the gateway electric meter participates in the network loss gateway attribute; then, generating a network loss calculation model of a certain area and a voltage division network loss calculation model of a certain voltage level of a certain area according to a network loss calculation formula of the certain area and a voltage division network loss calculation formula; and finally, calculating time-sharing network loss electric quantity and network loss rate according to the network loss calculation model configuration information, and calculating daily network loss electric quantity and network loss rate according to the calculated time-sharing network loss electric quantity. The calculation method provided by the invention covers the whole network loss electric quantity, and the obtained network loss calculation result is more accurate.
Description
Technical Field
The invention particularly relates to a network loss calculation method and system for an electric quantity system in an electric energy metering system, and belongs to the technical field of electricity utilization.
Background
The electric energy metering system is responsible for collecting, storing, managing and using remotely collected metering data and can analyze and summarize according to a power grid model. The electric energy metering requirement accurately, effectively and timely reflects the electric energy activity condition of upper and lower gateway ports in the power grid, provides data support for systems such as electric power market, marketing management, synchronous line loss and electric quantity regulation cloud and the like, and ensures the development of services such as settlement, examination, line loss management, balance analysis, profit and loss analysis, electric quantity check and the like.
With the development and progress of science and technology in human society, the power industry has become the pillar industry of all countries in the world and provides necessary energy and power. Due to the existence of impedance in the power system, the electric energy is inevitably generated along with a large amount of loss in the conversion, transmission and distribution processes. The grid loss is the loss of electrical energy generated by the transformer and the line when the power grid is running.
The scale of the production and consumption of the electric energy is huge, according to statistics, the consumed primary energy accounts for 1/3 in the total consumption of the national economy primary energy, the coverage of an electric power system is wide, and the electric power system is responsible for the tasks of electric energy conversion and transmission. The electric power system provides clean and convenient energy for society, and the loss of the electric power system in the conversion, transportation and distribution process is also huge, so that the research on the loss of electric energy in the conversion, transportation and distribution process has important significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a network loss calculation method and a network loss calculation system for an electric quantity system, and solves the technical problems that the calculation range of a traditional network loss model cannot cover the whole network loss electric quantity and the calculated network loss calculation result is greatly different from the actual network loss.
In order to solve the technical problem, the invention provides a network loss calculation method for an electric quantity system, which is characterized by comprising the following steps of:
determining a gateway attribute, wherein the gateway attribute refers to a network loss component forming network loss and attributes of each network loss component;
determining the electric quantity of a gateway ammeter with the gateway attribute;
determining a calculation model of the network loss electric quantity and the network loss rate;
and calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate.
Further, the network loss component comprises partition network loss and partial pressure network loss.
Further, the network loss component attributes include:
a) gateway attribute of partition network loss
Input class gateway attribute: the method comprises the following steps that power plant online electric quantity in a certain area, power input quantity across provinces in a certain area, power input quantity to the provinces in a certain area, power input quantity to an external network in a certain area, power input quantity to a superior network in a certain area and power input quantity to a subordinate network in a certain area are determined;
output class gateway attribute: the method comprises the following steps that electric quantity is output to a region from a certain region province, electric quantity is output across provinces from a certain region, electric quantity is sold in a certain region, electric quantity is output to an external network from a certain region, electric quantity is output to a subordinate power grid from a certain region, and electric quantity is output to a superior power grid from a certain region;
b) gateway attribute of partial voltage network loss
Input class gateway attribute: the method comprises the following steps that 750kV power plant online electric quantity in a certain area, 750kV trans-provincial input electric quantity in the certain area, 750kV input electric quantity to a province in the certain area, 750kV external grid input electric quantity in the certain area, 750kV upper-level power grid input electric quantity in the certain area and 750kV lower-level power grid input electric quantity in the certain area are obtained;
the online electric quantity of a 330kV power plant in a certain area and the 330kV trans-provincial input electric quantity in the certain area are obtained;
output class gateway attribute: the 750kV power output from a certain area to the area, the 750kV power output from the 750kV cross-province in the certain area, the 750kV power selling in the certain area, the 750kV power output from the 750kV lower-level power grid in the certain area to the outside network, the 750kV power output from the 750kV lower-level power grid in the certain area to the upper-level power grid in the certain area;
the 330kV province in a certain area outputs electric quantity to the area, and the 330kV cross-province in the certain area outputs electric quantity.
Further, the determining the gate electric quantity of the gate attribute comprises:
the selectable modes of the association configuration of the electric quantity and the gateway attribute of the gateway electric meter comprise three modes: positive active electric quantity, negative active electric quantity and positive and negative mutual-compensation electric quantity.
Further, the calculation model of the network loss electric quantity and the network loss rate comprises:
the partition network loss calculation formula is as follows:
wherein n is the number of partitions;
the partial pressure network loss calculation formula is as follows:
wherein n is the voltage class number of a certain area.
Further, the calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate includes:
calculating time-sharing network loss electric quantity and network loss rate according to the network loss electric quantity and network loss rate calculation model;
and calculating the daily, monthly and annual network loss electric quantity and the network loss rate according to the calculated time-sharing network loss electric quantity.
Correspondingly, the invention also provides a network loss calculation system for the electric quantity system, which is characterized by comprising a gateway attribute determining module, a gateway electric meter electric quantity determining module, a network loss calculation model determining module and a network loss calculation module;
a gateway attribute determining module, configured to determine a gateway attribute, where the gateway attribute refers to a network loss component and attributes of each network loss component that constitute the network loss;
the gateway electric meter electric quantity determining module is used for determining the gateway electric meter electric quantity of the gateway attribute;
the network loss calculation model determining module is used for determining a calculation model of network loss electric quantity and network loss rate;
and the network loss calculation module is used for calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate.
Further, in the gateway attribute determining module, the network loss component includes partition network loss and partial pressure network loss.
Further, in the gateway attribute determining module, the network loss component attributes include:
a) gateway attribute of partition network loss
Input class gateway attribute: the method comprises the following steps that power plant online electric quantity in a certain area, power input quantity across provinces in a certain area, power input quantity to the provinces in a certain area, power input quantity to an external network in a certain area, power input quantity to a superior network in a certain area and power input quantity to a subordinate network in a certain area are determined;
output class gateway attribute: the method comprises the following steps that electric quantity is output to a region from a certain region province, electric quantity is output across provinces from a certain region, electric quantity is sold in a certain region, electric quantity is output to an external network from a certain region, electric quantity is output to a subordinate power grid from a certain region, and electric quantity is output to a superior power grid from a certain region;
b) gateway attribute of partial voltage network loss
Input class gateway attribute: the method comprises the following steps that 750kV power plant online electric quantity in a certain area, 750kV trans-provincial input electric quantity in the certain area, 750kV input electric quantity to a province in the certain area, 750kV external grid input electric quantity in the certain area, 750kV upper-level power grid input electric quantity in the certain area and 750kV lower-level power grid input electric quantity in the certain area are obtained;
the online electric quantity of a 330kV power plant in a certain area and the 330kV trans-provincial input electric quantity in the certain area are obtained;
output class gateway attribute: the 750kV power output from a certain area to the area, the 750kV power output from the 750kV cross-province in the certain area, the 750kV power selling in the certain area, the 750kV power output from the 750kV lower-level power grid in the certain area to the outside network, the 750kV power output from the 750kV lower-level power grid in the certain area to the upper-level power grid in the certain area;
the 330kV province in a certain area outputs electric quantity to the area, and the 330kV cross-province in the certain area outputs electric quantity.
Further, determining a gateway electric meter electric quantity module, where determining the gateway electric meter electric quantity of the gateway attribute includes:
the selectable modes of the association configuration of the electric quantity and the gateway attribute of the gateway electric meter comprise three modes: positive active electric quantity, negative active electric quantity and positive and negative mutual-compensation electric quantity.
Further, in the module for determining a network loss calculation model, the calculation model for the network loss power and the network loss rate includes:
the partition network loss calculation formula is as follows:
wherein n is the number of partitions;
the partial pressure network loss calculation formula is as follows:
wherein n is the voltage class number of a certain area.
Further, in the network loss calculation module, calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate includes:
calculating time-sharing network loss electric quantity and network loss rate according to the network loss electric quantity and network loss rate calculation model;
and calculating the daily, monthly and annual network loss electric quantity and the network loss rate according to the calculated time-sharing network loss electric quantity.
Compared with the prior art, the invention has the following beneficial effects: the invention covers the whole network loss electric quantity in the whole network loss angle, and the calculated network loss calculation result is more accurate, so that the whole network loss electric quantity and the loss rate can be monitored in time, accurate and real-time data basis is provided for the electric quantity index management of the electric quantity system, and the electric meter and the electric quantity which form the model are accurately positioned for the electric quantity model with overlarge network loss electric quantity and overhigh loss rate, thereby achieving the purposes of reducing loss, saving electric energy and improving electric energy transmission.
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FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The invention conception of the invention is as follows: the gateway attribute is defined firstly, the partition network loss gateway attribute of a certain area can be defined, the voltage division network loss gateway attribute of a certain voltage grade of a certain area can also be defined, the defined gateway attribute of the input class is configured with the network loss component of the input class, and the defined gateway attribute of the output class is configured with the network loss component of the output class. And after the gateway loss attribute is defined, configuring the electric quantity of the gateway electric meter of the gateway loss attribute. And selecting one of forward active electric quantity, reverse active electric quantity or forward and reverse mutual compensation electric quantity of the gateway ammeter according to the mode that the electric quantity of the gateway ammeter participates in the gateway loss attribute. And then, generating the configuration information of the network loss calculation model of the area in a certain area and the configuration information of the voltage division network loss calculation model of a certain voltage level in a certain area according to the network loss calculation formula of the area and the voltage division network loss calculation formula. Each time the network loss calculation model information is modified, it is selectable whether to save historical network loss calculation model configuration information. And finally, calculating time-sharing network loss electric quantity and network loss rate according to the network loss calculation model configuration information, and calculating daily network loss electric quantity and network loss rate according to the calculated time-sharing network loss electric quantity.
Example 1
The invention relates to a network loss calculation method for an electric quantity system, which is shown in a figure 1 and comprises the following steps:
step 1, defining gateway attribute of network loss.
The gateway attribute definition essentially defines the network loss components of the network loss composed of each region and each voltage class and the input and output attributes of each network loss component. Definition and integrity of the gateway attribute definition are the premise and guarantee of accuracy of the grid loss formula.
The network loss is divided according to two dimensions, the network loss is divided into regions with the regions as the dimensions, and the network loss is divided by voltage grades with the voltage grades below the regions as the dimensions. The subarea network loss is the network loss of a certain area, and the partial pressure network loss is the network loss under a specific voltage grade of the certain area.
The defined format of the gateway attribute is: the first half of the voltage grade of a certain area or a certain area in a formula defines whether the applicable range of the gateway attribute is the voltage grade of the certain area or the voltage grade below the certain area, and the second half of the voltage grade defines the input and output attribute of the gateway attribute.
Common net loss components include:
a) inputting a class: power plant surfing, trans-provincial input, regional-provincial input, extranet input, superior power grid input and subordinate power grid input.
b) And (3) outputting the classes: province-to-region output, cross-province output, electricity selling amount, output to an external network, output to a lower-level power grid, output to an upper-level power grid and the like.
The well-defined gateway attribute format is as follows:
a) gateway attribute of partition network loss
Input class gateway attribute: the power grid power supply system comprises power plant online power quantity in a certain area, power input quantity across provinces in a certain area, power input quantity to the provinces in a certain area, power input quantity to an external grid in a certain area, power input quantity to a superior grid in a certain area, power input quantity to a subordinate grid in a certain area and the like.
Output class gateway attribute: the power output from a certain region to a region, the power output from a certain region across provinces, the power sold in a certain region, the power output from a certain region to an external network, the power output from a certain region to a subordinate power grid, the power output from a certain region to a superior power grid, etc.
b) Gateway attribute of partial voltage network loss
Input class gateway attribute: the method comprises the following steps that 750kV power plant online electric quantity in a certain area, 750kV trans-provincial input electric quantity in the certain area, 750kV input electric quantity to a province in the certain area, 750kV external grid input electric quantity in the certain area, 750kV upper-level power grid input electric quantity in the certain area, 750kV lower-level power grid input electric quantity in the certain area and the like;
the online electric quantity of a 330kV power plant in a certain area, the 330kV trans-provincial input electric quantity in a certain area and the like.
Output class gateway attribute: the 750kV power output from a certain area to the area, the 750kV power output from the 750kV cross-province in the certain area, the 750kV power selling in the certain area, the 750kV power output from the 750kV lower level power grid in the certain area to the outside network, the 750kV power output from the 750kV lower level power grid in the certain area to the upper level power grid in the certain area and the like;
the power output from 330kV province to region in a certain region, the power output from 330kV cross province in a certain region, and the like.
And 2, configuring the electric quantity of the gateway electric meter with the gateway attribute.
And based on the gateway attributes defined in the first step, configuring the electric quantity of the gateway electric meter contained in each gateway attribute in the second step.
The selectable modes of the association configuration of the electric quantity and the gateway attribute of the gateway electric meter comprise three modes: positive active electric quantity, reverse active electric quantity, and positive and negative mutual-compensation electric quantity (positive active electric quantity-reverse active electric quantity). The choice of the three ways depends on the nature of the grid equipment on which the electricity meter is located. If the grid equipment is a power plant supplying power to the grid and does not use the electricity on the grid, the participation mode is positive active electric quantity; if the power grid equipment supplies power to the power grid and uses the power on the power grid, the participation mode is positive and negative mutual electric quantity (positive active electric quantity-reverse active electric quantity); if the power grid equipment only uses the electric quantity of the power grid, the participation mode is reverse active electric quantity.
And 3, generating a network loss calculation model.
The partition network loss calculation formula is as follows:
wherein n is the number of partitions.
The partial pressure network loss calculation formula is as follows:
wherein n is the voltage class number of a certain area.
Note that: when the gateway electric meter power configuration of the existing gateway attribute is modified, attention needs to be paid to whether the historical configuration before modification is reserved. The significance of the historical configuration is that the historical configuration information corresponding to the historical loss result value is convenient to trace back.
And 4, calculating time-sharing network loss electric quantity and network loss rate according to the network loss calculation model configuration information, and calculating the daily, monthly and annual network loss electric quantity and network loss rate according to the calculated time-sharing network loss electric quantity.
The invention covers the whole network power loss in the angle of the whole network power loss, and the calculated network loss calculation result is more accurate, so that the whole network power loss and the power loss rate can be monitored in time, and an accurate and real-time data basis is provided for the power index management of the power system.
Example 2
Correspondingly, the invention also provides a network loss calculation system for the electric quantity system, which comprises a gateway attribute determining module, a gateway electric meter electric quantity determining module, a network loss calculation model determining module and a network loss calculation module;
a gateway attribute determining module, configured to determine a gateway attribute, where the gateway attribute refers to a network loss component and attributes of each network loss component that constitute the network loss;
the gateway electric meter electric quantity determining module is used for determining the gateway electric meter electric quantity of the gateway attribute;
the network loss calculation model determining module is used for determining a calculation model of network loss electric quantity and network loss rate;
and the network loss calculation module is used for calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate.
Further, in the gateway attribute determining module, the network loss component includes partition network loss and partial pressure network loss.
Further, in the gateway attribute determining module, the network loss component attributes include:
a) gateway attribute of partition network loss
Input class gateway attribute: the method comprises the following steps that power plant online electric quantity in a certain area, power input quantity across provinces in a certain area, power input quantity to the provinces in a certain area, power input quantity to an external network in a certain area, power input quantity to a superior network in a certain area and power input quantity to a subordinate network in a certain area are determined;
output class gateway attribute: the method comprises the following steps that electric quantity is output to a region from a certain region province, electric quantity is output across provinces from a certain region, electric quantity is sold in a certain region, electric quantity is output to an external network from a certain region, electric quantity is output to a subordinate power grid from a certain region, and electric quantity is output to a superior power grid from a certain region;
b) gateway attribute of partial voltage network loss
Input class gateway attribute: the method comprises the following steps that 750kV power plant online electric quantity in a certain area, 750kV trans-provincial input electric quantity in the certain area, 750kV input electric quantity to a province in the certain area, 750kV external grid input electric quantity in the certain area, 750kV upper-level power grid input electric quantity in the certain area and 750kV lower-level power grid input electric quantity in the certain area are obtained;
the online electric quantity of a 330kV power plant in a certain area and the 330kV trans-provincial input electric quantity in the certain area are obtained;
output class gateway attribute: the 750kV power output from a certain area to the area, the 750kV power output from the 750kV cross-province in the certain area, the 750kV power selling in the certain area, the 750kV power output from the 750kV lower-level power grid in the certain area to the outside network, the 750kV power output from the 750kV lower-level power grid in the certain area to the upper-level power grid in the certain area;
the 330kV province in a certain area outputs electric quantity to the area, and the 330kV cross-province in the certain area outputs electric quantity.
Further, determining a gateway electric meter electric quantity module, where determining the gateway electric meter electric quantity of the gateway attribute includes:
the selectable modes of the association configuration of the electric quantity and the gateway attribute of the gateway electric meter comprise three modes: positive active electric quantity, negative active electric quantity and positive and negative mutual-compensation electric quantity.
Further, in the module for determining a network loss calculation model, the calculation model for the network loss power and the network loss rate includes:
the partition network loss calculation formula is as follows:
wherein n is the number of partitions;
the partial pressure network loss calculation formula is as follows:
wherein n is the voltage class number of a certain area.
Further, in the network loss calculation module, calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate includes:
calculating time-sharing network loss electric quantity and network loss rate according to the network loss electric quantity and network loss rate calculation model;
and calculating the daily, monthly and annual network loss electric quantity and the network loss rate according to the calculated time-sharing network loss electric quantity.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application 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 application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A network loss calculation method for an electric quantity system is characterized by comprising the following steps:
determining a gateway attribute, wherein the gateway attribute refers to a network loss component forming network loss and attributes of each network loss component;
determining the electric quantity of a gateway ammeter with the gateway attribute;
determining a calculation model of the network loss electric quantity and the network loss rate;
and calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate.
2. The method as claimed in claim 1, wherein the network loss component includes a partition network loss and a voltage-dividing network loss;
each of the network loss component attributes includes:
a) gateway attribute of partition network loss
Input class gateway attribute: the method comprises the following steps that power plant online electric quantity in a certain area, power input quantity across provinces in a certain area, power input quantity to the provinces in a certain area, power input quantity to an external network in a certain area, power input quantity to a superior network in a certain area and power input quantity to a subordinate network in a certain area are determined;
output class gateway attribute: the method comprises the following steps that electric quantity is output to a region from a certain region province, electric quantity is output across provinces from a certain region, electric quantity is sold in a certain region, electric quantity is output to an external network from a certain region, electric quantity is output to a subordinate power grid from a certain region, and electric quantity is output to a superior power grid from a certain region;
b) gateway attribute of partial voltage network loss
Input class gateway attribute: the method comprises the following steps that 750kV power plant online electric quantity in a certain area, 750kV trans-provincial input electric quantity in the certain area, 750kV input electric quantity to a province in the certain area, 750kV external grid input electric quantity in the certain area, 750kV upper-level power grid input electric quantity in the certain area and 750kV lower-level power grid input electric quantity in the certain area are obtained;
the online electric quantity of a 330kV power plant in a certain area and the 330kV trans-provincial input electric quantity in the certain area are obtained;
output class gateway attribute: the 750kV power output from a certain area to the area, the 750kV power output from the 750kV cross-province in the certain area, the 750kV power selling in the certain area, the 750kV power output from the 750kV lower-level power grid in the certain area to the outside network, the 750kV power output from the 750kV lower-level power grid in the certain area to the upper-level power grid in the certain area;
the 330kV province in a certain area outputs electric quantity to the area, and the 330kV cross-province in the certain area outputs electric quantity.
3. The method of claim 1, wherein the determining the gateway meter capacity for the gateway attribute comprises:
the selectable modes of the association configuration of the electric quantity and the gateway attribute of the gateway electric meter comprise three modes: positive active electric quantity, negative active electric quantity and positive and negative mutual-compensation electric quantity.
4. The method as claimed in claim 1, wherein the calculation model of the network loss capacity and the network loss rate comprises:
the partition network loss calculation formula is as follows:
wherein n is the number of partitions;
the partial pressure network loss calculation formula is as follows:
wherein n is the voltage class number of a certain area.
5. The method as claimed in claim 1, wherein the calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate comprises:
calculating time-sharing network loss electric quantity and network loss rate according to the network loss electric quantity and network loss rate calculation model;
and calculating the daily, monthly and annual network loss electric quantity and the network loss rate according to the calculated time-sharing network loss electric quantity.
6. A network loss calculation system for an electric quantity system is characterized by comprising a gateway attribute determining module, a gateway electric meter electric quantity determining module, a network loss calculation model determining module and a network loss calculation module;
a gateway attribute determining module, configured to determine a gateway attribute, where the gateway attribute refers to a network loss component and attributes of each network loss component that constitute the network loss;
the gateway electric meter electric quantity determining module is used for determining the gateway electric meter electric quantity of the gateway attribute;
the network loss calculation model determining module is used for determining a calculation model of network loss electric quantity and network loss rate;
and the network loss calculation module is used for calculating the network loss electric quantity and the network loss rate according to the calculation model of the network loss electric quantity and the network loss rate.
7. The system of claim 6, wherein in the module for determining the attribute of the gateway, the network loss component includes a partition network loss and a voltage-dividing network loss;
each of the network loss component attributes includes:
a) gateway attribute of partition network loss
Input class gateway attribute: the method comprises the following steps that power plant online electric quantity in a certain area, power input quantity across provinces in a certain area, power input quantity to the provinces in a certain area, power input quantity to an external network in a certain area, power input quantity to a superior network in a certain area and power input quantity to a subordinate network in a certain area are determined;
output class gateway attribute: the method comprises the following steps that electric quantity is output to a region from a certain region province, electric quantity is output across provinces from a certain region, electric quantity is sold in a certain region, electric quantity is output to an external network from a certain region, electric quantity is output to a subordinate power grid from a certain region, and electric quantity is output to a superior power grid from a certain region;
b) gateway attribute of partial voltage network loss
Input class gateway attribute: the method comprises the following steps that 750kV power plant online electric quantity in a certain area, 750kV trans-provincial input electric quantity in the certain area, 750kV input electric quantity to a province in the certain area, 750kV external grid input electric quantity in the certain area, 750kV upper-level power grid input electric quantity in the certain area and 750kV lower-level power grid input electric quantity in the certain area are obtained;
the online electric quantity of a 330kV power plant in a certain area and the 330kV trans-provincial input electric quantity in the certain area are obtained;
output class gateway attribute: the 750kV power output from a certain area to the area, the 750kV power output from the 750kV cross-province in the certain area, the 750kV power selling in the certain area, the 750kV power output from the 750kV lower-level power grid in the certain area to the outside network, the 750kV power output from the 750kV lower-level power grid in the certain area to the upper-level power grid in the certain area;
the 330kV province in a certain area outputs electric quantity to the area, and the 330kV cross-province in the certain area outputs electric quantity.
8. The grid loss calculation system of claim 6, wherein the gateway meter capacity determination module determines the gateway meter capacity for the gateway attribute comprising:
the selectable modes of the association configuration of the electric quantity and the gateway attribute of the gateway electric meter comprise three modes: positive active electric quantity, negative active electric quantity and positive and negative mutual-compensation electric quantity.
9. The grid loss calculation system for the electric quantity system according to claim 6, wherein in the module for determining the grid loss calculation model, the calculation model of the grid loss electric quantity and the grid loss rate comprises:
the partition network loss calculation formula is as follows:
wherein n is the number of partitions;
the partial pressure network loss calculation formula is as follows:
wherein n is the voltage class number of a certain area.
10. The system according to claim 6, wherein the network loss calculating module calculates the network loss power and the network loss rate according to a calculation model of the network loss power and the network loss rate, and comprises:
calculating time-sharing network loss electric quantity and network loss rate according to the network loss electric quantity and network loss rate calculation model;
and calculating the daily, monthly and annual network loss electric quantity and the network loss rate according to the calculated time-sharing network loss electric quantity.
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