CN117394369A - Uninterrupted power supply-to-power supply regulation and control system based on multidimensional data - Google Patents
Uninterrupted power supply-to-power supply regulation and control system based on multidimensional data Download PDFInfo
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Abstract
The invention provides a power-uninterrupted power supply switching regulation and control system based on multidimensional data, which relates to the field of power supply systems and is applied to a low-voltage distribution network, wherein the low-voltage distribution network at least comprises a plurality of low-voltage distribution nodes and a plurality of interconnection switches, and the system comprises: the data acquisition module is used for acquiring structural information, electrical equipment parameters and operation data of the power distribution network and establishing a link node association map; the scheme generation module is used for determining a plurality of candidate ring closing schemes corresponding to the ring closing nodes to be closed based on the ring closing node association map, wherein the candidate ring closing schemes comprise candidate contact switches; the scheme screening module is used for determining a target ring closing scheme based on the electrical characteristics and the load characteristics of two sides of the candidate contact switch included in each candidate ring closing scheme and the ring closing electrical characteristics corresponding to the candidate ring closing scheme; and the loop closing execution module is used for controlling the plurality of contact switches to carry out loop closing to power supply operation based on a target loop closing scheme, and has the advantage of improving the reliability of power supply.
Description
Technical Field
The invention relates to the field of power supply systems, in particular to a power-uninterrupted power supply switching regulation and control system based on multidimensional data.
Background
The loss of the society caused by power failure due to various reasons often exceeds the loss of the power system, and the guarantee of reliable and continuous power supply is one of the basic requirements of the operation of the power system. With the development of economy and the continuous improvement of the living standard of people, the demands of users for power supply reliability are gradually increased. In the current operation of the power distribution network, the low-voltage power distribution network is located at the tail end of the power distribution network and directly faces the load of the user side, so that whether reliable and high-quality electric energy can be provided is closely related to the life quality of the user.
When the distribution network overhauls or the system fails, load transfer can be realized through loop closing operation, and power failure of users is avoided, but because excessive loop closing power flow is possibly caused after loop closing, overload and even protection tripping of circuits or equipment are caused, the power failure of users in a larger range is caused, and therefore the feasibility of the loop closing operation is difficult to judge. In view of this, most of China adopts a mode of firstly cutting off power and then switching power supply, namely when the distribution network overhauls or the system fails, the power is firstly cut off, the distribution network overhauls are completed or the system fails are solved and then the operation mode is restored to the original power supply operation mode, but the operation mode can lead to the increase of the times of power cut of users and the lengthening of the power cut time, thereby seriously affecting the reliable power utilization of users.
Therefore, it is desirable to provide a power uninterrupted switching power supply regulation and control system based on multidimensional data, which is used for improving the reliability of power supply.
Disclosure of Invention
One of the embodiments of the present disclosure provides a power uninterrupted power supply switching regulation and control system based on multidimensional data, which is applied to a low-voltage distribution network, wherein the low-voltage distribution network at least comprises a plurality of low-voltage distribution nodes and a plurality of interconnection switches, and the system comprises: the data acquisition module is used for acquiring structural information, electrical equipment parameters and historical operation data of the low-voltage power distribution network and establishing a link node association map; the scheme generation module is used for determining a plurality of candidate ring closing schemes corresponding to the ring closing nodes to be closed based on the ring closing node association map, wherein the candidate ring closing schemes comprise candidate contact switches; the scheme screening module is used for screening the plurality of candidate ring closing schemes based on the electrical characteristics and the load characteristics of two sides of the candidate contact switch included by each candidate ring closing scheme and the ring closing electrical characteristics corresponding to the candidate ring closing schemes, and determining a target ring closing scheme; and the loop closing execution module is used for controlling the plurality of contact switches to carry out loop closing power supply operation based on the target loop closing scheme.
In some embodiments, the data obtaining module obtains structural information, electrical equipment parameters and historical operation data of the low-voltage power distribution network, and establishes a syn-node association map, including: based on the structural information of the low-voltage power distribution network and electrical equipment parameters, establishing a topological structure of the low-voltage power distribution network; determining the ring closing association degree of any two low-voltage distribution nodes based on the topological structure and the historical operation data of the low-voltage distribution network; and establishing a link closing node association map based on the topological structure of the low-voltage distribution network and the link closing association degree of any two low-voltage distribution nodes.
In some embodiments, the data obtaining module determines a degree of loop closing association of any two low-voltage distribution nodes based on a topology structure and historical operation data of the low-voltage distribution network, including: determining the historical fault rate of each low-voltage distribution node through the historical operation data of the low-voltage distribution network; and determining the ring closing association degree of any two low-voltage distribution nodes based on the historical fault rate of each low-voltage distribution node and the topological structure of the low-voltage distribution network.
In some embodiments, the scheme screening module screens the plurality of candidate ring closing schemes based on the electrical characteristics and the load characteristics of two sides of the candidate contact switch included in each candidate ring closing scheme and the ring closing electrical characteristics corresponding to the candidate ring closing scheme, and determines a target ring closing scheme, including: screening the plurality of candidate ring closing schemes based on the electrical characteristics of two sides of a candidate contact switch included in each candidate ring closing scheme, and determining at least one first screening ring closing scheme; screening the at least one first screening ring closing scheme based on the ring closing electrical characteristics corresponding to each first screening ring closing scheme, and determining at least one second screening ring closing scheme; and screening the at least one second screening ring closing scheme based on the load characteristics of two sides of the candidate contact switch included in each second screening ring closing scheme, and determining the target ring closing scheme.
In some embodiments, the solution screening module screens the plurality of candidate ring closing solutions based on electrical characteristics of two sides of a candidate tie switch included in each of the candidate ring closing solutions, and determines at least one first screening ring closing solution, including: for each candidate loop closing scheme, determining voltage differences, phase angle differences and frequency differences corresponding to the candidate loop closing schemes based on the electrical characteristics of two sides of a candidate tie switch included in the candidate loop closing scheme; and screening the plurality of candidate ring closing schemes based on the voltage difference, the phase angle difference and the frequency difference corresponding to each candidate ring closing scheme, and determining at least one first screening ring closing scheme.
In some embodiments, the solution screening module screens the at least one first screening ring closure solution based on the ring closure electrical characteristics corresponding to each of the first screening ring closure solutions, and determines at least one second screening ring closure solution, including: for each first screening loop closing scheme, determining a steady-state loop closing current and a transient-state loop closing current corresponding to the first screening loop closing scheme based on the electrical characteristics of two sides of a candidate tie switch included in the first screening loop closing scheme and the dynamic equivalent impedance of the low-voltage power distribution network; and screening the at least one first screening loop closing scheme based on the steady-state loop closing current and the transient loop closing current corresponding to each first screening loop closing scheme, and determining at least one second screening loop closing scheme.
In some embodiments, the solution screening module screens the at least one second screening ring closing solution based on load characteristics of two sides of a candidate tie switch included in each of the second screening ring closing solutions, and determines the target ring closing solution, including: for each second screening ring closing scheme, determining the ring closing stability corresponding to the second screening ring closing scheme based on the operation state information and the electrical characteristics of two sides of the candidate contact switch included in the second screening ring closing scheme; for each second screening ring closing scheme, determining the user ring closing tolerance corresponding to the second screening ring closing scheme based on the load characteristics of two sides of the candidate contact switch included in the second screening ring closing scheme; and screening the at least one second screening ring closing scheme based on the ring closing stability and the user ring closing tolerance corresponding to each second screening ring closing scheme, and determining the target ring closing scheme.
In some embodiments, the scheme screening module determines a user closed-loop tolerance corresponding to the second screening closed-loop scheme based on load characteristics of two sides of a candidate contact switch included in the second screening closed-loop scheme, including: clustering the loads on two sides of the candidate contact switches included in the second screening ring closing scheme based on the load characteristics on two sides of the candidate contact switches included in the second screening ring closing scheme to generate a plurality of load cluster clusters; establishing cluster portraits for each load cluster; for each load cluster, determining cluster ring tolerance corresponding to the load cluster based on cluster portrait of the load cluster through a tolerance prediction model; and determining the user ring closing tolerance corresponding to the second screening ring closing scheme based on the cluster ring closing tolerance corresponding to each load cluster.
In some embodiments, the loop closing execution module is further to: and determining a target ring closing time point based on the load characteristics of two sides of the target tie switch included in the target ring closing scheme.
In some embodiments, the loop closing execution module determines a target loop closing time point based on load electricity utilization characteristics of two sides of a target tie switch included in the target loop closing scheme, and the loop closing execution module includes: and determining the target closing time point based on the electricity wave condition of the loads on two sides of the target tie switch included in the target closing scheme.
Compared with the prior art, the uninterrupted power supply to power supply regulation and control system based on multidimensional data provided by the specification has the following beneficial effects:
1. the method comprises the steps that a link closing node association map is established in advance, data support is provided for the follow-up determination of a plurality of candidate ring closing schemes, the plurality of candidate ring closing schemes are screened based on the electrical characteristics and the load characteristics of two sides of a candidate contact switch included in each candidate ring closing scheme and the ring closing electrical characteristics corresponding to the candidate ring closing schemes, the last ring closing scheme is determined, the power supply is turned over without power outage, protection tripping caused by overload of a circuit or equipment after the ring closing is realized, and the operation mode of power outage before power supply turning over is not needed, so that the power outage times are reduced, and the power supply reliability of a user is improved;
2. the ring closing association degree of any two low-voltage distribution nodes is determined, data support is provided for the construction of a ring closing node association map, and a plurality of candidate ring closing schemes which are determined later are practical and accurate;
3. and setting a triple screening rule so that the finally determined target ring closing scheme meets the current ring closing requirement.
Drawings
The present specification will be further elucidated by way of example embodiments, which will be described in detail by means of the accompanying drawings. The embodiments are not limiting, in which like numerals represent like structures, wherein:
FIG. 1 is a schematic block diagram of a uninterruptible power supply regulation system, according to some embodiments of the present disclosure, based on multidimensional data;
FIG. 2 is a schematic flow chart of establishing a resultant ring node association graph according to some embodiments of the present disclosure;
FIG. 3 is a schematic flow diagram of determining a target ring closure scheme according to some embodiments of the present disclosure;
fig. 4 is a schematic flow chart of determining a user ring closing tolerance corresponding to a second screening ring closing scheme according to some embodiments of the present disclosure;
fig. 5 is a schematic illustration of a syn-node association graph according to some embodiments of the present description.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present specification, and it is possible for those of ordinary skill in the art to apply the present specification to other similar situations according to the drawings without inventive effort. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.
It will be appreciated that "system," "apparatus," "unit" and/or "module" as used herein is one method for distinguishing between different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions.
As used in this specification and the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus.
A flowchart is used in this specification to describe the operations performed by the system according to embodiments of the present specification. It should be appreciated that the preceding or following operations are not necessarily performed in order precisely. Rather, the steps may be processed in reverse order or simultaneously. Also, other operations may be added to or removed from these processes.
The utility model provides a change power regulation and control system is applied to low voltage distribution network to uninterrupted power supply based on multidimensional data, wherein, low voltage distribution network includes a plurality of low voltage distribution nodes and a plurality of tie switches at least.
The low voltage distribution node may be constituted by a low voltage distribution device. For example, the low-voltage distribution node may be formed by a primary distribution device, a secondary distribution device, or a final distribution device. Wherein, the first-stage power distribution equipment is collectively called a power distribution center. They are installed centrally in the substations of the enterprise to distribute the electrical energy to the lower distribution facilities at different sites. The stage of equipment is closely adjacent to the step-down transformer, so that the electrical parameter requirement is higher, and the output circuit capacity is also larger. The secondary power distribution equipment is a generic name of a power distribution cabinet and a motor control center. The power distribution cabinet is used in the occasions with dispersed load and less loops; the motor control center is used for occasions with concentrated load and more loops. They distribute the power of a circuit of the upper-level distribution equipment to nearby loads. This class of equipment should provide protection, monitoring and control of the load. The final stage distribution equipment is collectively referred to as an illumination power distribution box. They are remote from the power center and are decentralized small-capacity power distribution devices.
The tie switch may be used to connect the corresponding bus bars of the two low voltage distribution nodes.
Fig. 1 is a schematic block diagram of a power uninterrupted switching power supply regulation and control system based on multidimensional data according to some embodiments of the present disclosure, as shown in fig. 1, a power uninterrupted switching power supply regulation and control system based on multidimensional data may include a data acquisition module, a scheme generation module, a scheme screening module, and a loop closing execution module. The respective modules are described in detail in order below.
The data acquisition module can be used for acquiring structural information, electrical equipment parameters and historical operation data of the power distribution network and establishing a link node association map.
The ring closing node association graph can be used for representing the connection relation of a plurality of low-voltage distribution nodes and the ring closing association relation among the plurality of low-voltage distribution nodes, wherein the ring closing association relation can represent the possibility of ring closing between two low-voltage distribution nodes. Fig. 5 is a schematic diagram of a link node association diagram according to some embodiments of the present disclosure, as shown in fig. 5, a bus corresponding to a low-voltage distribution node 1 is connected to a bus corresponding to a low-voltage distribution node 2 through a tie switch 1, a bus corresponding to the low-voltage distribution node 1 is connected to a bus corresponding to a low-voltage distribution node 3 through a tie switch 2, a bus corresponding to the low-voltage distribution node 1 is connected to a bus corresponding to a low-voltage distribution node 4 through a tie switch 3, a degree of link association between the low-voltage distribution node 1 and the low-voltage distribution node 2 is 70%, a degree of link association between the low-voltage distribution node 1 and the low-voltage distribution node 3 is 20%, and a degree of link association between the low-voltage distribution node 1 and the low-voltage distribution node 4 is 10%.
Fig. 2 is a schematic flow chart of establishing a node-in-link association graph according to some embodiments of the present disclosure, as shown in fig. 2, in some embodiments, the data obtaining module obtains structural information, electrical equipment parameters, and historical operating data of the power distribution network, and establishes the node-in-link association graph, including:
based on structural information and electrical equipment parameters of the power distribution network, establishing a topological structure of the power distribution network;
determining the ring closing association degree of any two low-voltage distribution nodes based on the topological structure and historical operation data of the distribution network;
and establishing a ring closing node association map based on the topological structure of the power distribution network and the ring closing association degree of any two low-voltage power distribution nodes.
Specifically, the data acquisition module can establish a topology structure of the power distribution network based on structural information and electrical equipment parameters of the power distribution network in any mode, and the topology structure of the power distribution network can be used for representing connection relations among a plurality of low-voltage power distribution nodes and a plurality of interconnection switches.
The ring closing association degree of the two low-voltage power distribution nodes can represent the possibility that the two low-voltage power distribution nodes are closed, and the larger the ring closing association degree of the two low-voltage power distribution nodes is, the larger the possibility that the two low-voltage power distribution nodes are closed.
As shown in fig. 2, in some embodiments, the data obtaining module determines a degree of loop closing association of any two low-voltage distribution nodes based on a topology structure and historical operation data of the distribution network, including:
determining the historical fault rate of each low-voltage distribution node through the historical operation data of the distribution network;
and determining the ring closing association degree of any two low-voltage distribution nodes based on the historical fault rate of each low-voltage distribution node and the topological structure of the distribution network.
Specifically, for each low-voltage distribution node, the data acquisition module may determine, from historical operation data of the power distribution network, historical fault information of the low-voltage distribution node in a certain historical period (for example, the past 5 years), where the historical fault information may include a fault duration of each fault, and determine the first fault rate according to the historical fault information. And establishing a node representation of the low-voltage distribution node according to the electrical equipment parameters and the historical operation data of the upper node of the low-voltage distribution node, the electrical equipment parameters and the historical operation data of the low-voltage distribution node and the electrical equipment parameters and the historical operation data of the lower node of the low-voltage distribution node, determining a plurality of similar nodes from a sample node database based on the similarity between the node representation of the low-voltage distribution node and the node representation of a plurality of sample low-voltage distribution nodes in the sample node database, determining a second failure rate of the low-voltage distribution node based on the first failure rate and the second failure rate of the similar nodes, and determining the historical failure rate of the low-voltage distribution node based on the first failure rate and the second failure rate, wherein the sample node database can be pre-stored with the structural information, the electrical equipment parameters and the historical operation data of the sample low-voltage distribution nodes included in the sample node database and the first failure rate of the sample low-voltage distribution node in each sample low-voltage distribution network, and the sample low-voltage distribution network can be a real distribution network or a simulated distribution network.
For example, the data acquisition module may determine the historical failure rate of the low voltage power distribution node based on the following equation:
wherein (1)>Historical failure rate for the ith low voltage distribution node,/->、/>Are all preset weights, are->First failure rate for the ith low voltage distribution node,/th low voltage distribution node>Second failure rate for the ith low voltage distribution node,/th low voltage distribution node>For the similarity between the node representation of the ith low voltage distribution node and the node representation of the jth similar node,/for the node representation of the ith low voltage distribution node>For the similarity between the node representation of the ith low voltage distribution node and the node representation of the nth similar node,/for the node representation of the ith low voltage distribution node>First failure rate for jth similar node,/->Is the total number of similar nodes of the ith low voltage power distribution node.
In some embodiments, for each low voltage power distribution node, the data acquisition module may determine a node user loop tolerance of the low voltage power distribution node based on a load characteristic of the low voltage power distribution node, where the load may be a consumer of electricity. It will be appreciated that the node user loop tolerance of the two low voltage distribution nodes may be consistent. For example, when the low-voltage power distribution node 1 and the low-voltage power distribution node 4 cooperate to supply power to the load 1 and the load 2, the users corresponding to the low-voltage power distribution node 1 and the low-voltage power distribution node 4 are the same, and the node user ring closing tolerance of the low-voltage power distribution node 1 and the node user ring closing tolerance of the low-voltage power distribution node 4 can be consistent. The node user loop tolerance of the two low voltage distribution nodes may be different. For example, when the low-voltage power distribution node 1 cooperates with the low-voltage power distribution node 5 to supply power to the load 3 and the low-voltage power distribution node 1 cooperates with the low-voltage power distribution node 6 to supply power to the load 4, the node user ring closing tolerance of the low-voltage power distribution node 1 may be the average value of the node user ring closing tolerance of the low-voltage power distribution node 5 and the node user ring closing tolerance of the low-voltage power distribution node 6.
In some embodiments, for each low voltage distribution node (also referred to as a "supply node") that directly supplies power to a user, the data acquisition module may determine the node user loop tolerance of the supply node based on information about the supply node. The relevant information of the power supply node at least comprises user type, electric equipment information, user feedback information and the like. For example, the data acquisition module may determine a node user loop tolerance of the power supply node based on relevant information of the power supply node through a tolerance prediction model. The tolerance prediction model may be a machine learning model such as an artificial neural network (Artificial Neural Network, ANN) model, a recurrent neural network (Recurrent Neural Networks, RNN) model, a Long Short-Term Memory (LSTM) model, or a bi-directional recurrent neural network (BRNN) model.
It can be appreciated that the closing ring may have a certain effect on the power consumption of the users of the low-voltage power distribution node, and the closing ring tolerance of the node users may represent the willingness of the low-voltage power distribution node to cooperate with the closing ring operation. The higher the node user closing tolerance, the higher the enthusiasm of the user of the low-voltage distribution node for closing the ring.
Further, for each low-voltage distribution node, the data acquisition module may determine a ring closing associated node of the low-voltage distribution node from a plurality of low-voltage distribution nodes based on a topology structure of the power distribution network, where the ring closing associated node of the low-voltage distribution node may be a low-voltage distribution node with which ring closing operation can be performed through a tie switch. And determining the ring closing association degree between the ring closing association node and the low-voltage distribution node based on the historical fault rate of the ring closing association node and the ring closing tolerance of the node user.
For example, the degree of closed-loop association between the closed-loop association node and the low-voltage distribution node may be determined based on the following formula:
wherein (1)>For the degree of closed loop association between the p-th low voltage distribution node and the q-th closed loop association node,/for the power distribution node>Historical failure rate for the q-th ring-closing associated node,>node user ring closing tolerance for the q-th ring closing associated node, +.>Historical failure rate of the mth loop closing associated node, which is the p-th low voltage distribution node,/>And (3) the node user ring closing tolerance of the mth ring closing associated node of the p-th low-voltage power distribution node, M is the total number of the ring closing associated nodes of the p-th low-voltage power distribution node, and R is a preset parameter.
The scheme generation module may be configured to determine a plurality of candidate ring closing schemes corresponding to the ring closing nodes to be closed based on the ring closing node association map.
The candidate ring closing scheme comprises a candidate tie switch.
Specifically, the scheme generating module may determine a relevance threshold according to a node user loop closing tolerance of a to-be-closed ring node based on a loop closing ring node relevance map, and generate a plurality of candidate loop closing schemes corresponding to the to-be-closed ring node by using a loop closing relevance node with a loop closing relevance greater than the relevance threshold, that is, a candidate loop closing scheme corresponding to a loop closing relevance node with a loop closing relevance greater than the relevance threshold.
It can be appreciated that the ring closing failure may have an adverse effect on the power consumption of the user of the ring closing node, and the association threshold may represent the willingness of the user of the ring closing node to expect the ring closing success, and the higher the association threshold, the lower the tolerance of the user of the ring closing node to the ring closing failure.
The scheme screening module may be configured to screen a plurality of candidate ring closing schemes based on electrical characteristics and load characteristics of two sides of the candidate contact switch included in each candidate ring closing scheme, ring closing electrical characteristics corresponding to the candidate ring closing scheme, and a ring closing node association map, and determine a target ring closing scheme.
Fig. 3 is a schematic flow chart of determining a target ring closing scheme according to some embodiments of the present disclosure, as shown in fig. 3, and in some embodiments, the scheme screening module screens a plurality of candidate ring closing schemes based on electrical characteristics and load characteristics of two sides of a candidate contact switch included in each candidate ring closing scheme, ring closing electrical characteristics corresponding to the candidate ring closing scheme, and a ring closing node association map, to determine the target ring closing scheme, including:
screening the plurality of candidate ring closing schemes based on the electrical characteristics of two sides of the candidate contact switch included in each candidate ring closing scheme, and determining at least one first screening ring closing scheme;
screening at least one first screening ring closing scheme based on the ring closing electric characteristics corresponding to each first screening ring closing scheme, and determining at least one second screening ring closing scheme;
and screening at least one second screening ring closing scheme based on the load characteristics of two sides of the candidate contact switch included in each second screening ring closing scheme, and determining a target ring closing scheme.
As shown in fig. 3, in some embodiments, the solution screening module screens the plurality of candidate ring closing solutions based on the electrical characteristics of two sides of the candidate tie switches included in each candidate ring closing solution, and determines at least one first screening ring closing solution, including:
for each candidate loop closing scheme, determining voltage difference, phase angle difference and frequency difference corresponding to the candidate loop closing scheme based on the electrical characteristics of two sides of the candidate tie switch included in the candidate loop closing scheme;
and screening the plurality of candidate ring closing schemes based on the voltage difference, the phase angle difference and the frequency difference corresponding to each candidate ring closing scheme, and determining at least one first screening ring closing scheme.
For example only, the scheme screening module may calculate a differential pressure based on the voltage differential and the phase angle differential, determine whether the differential pressure meets a preset differential pressure condition, e.g., the differential pressure is less than or equal to 5% of the rated voltage; judging whether the phase difference satisfies a preset phase difference condition, for example, the phase difference is 0; it is determined whether the frequency difference satisfies a preset frequency difference condition, for example, the phase difference is 0.
As shown in fig. 3, in some embodiments, the solution screening module screens at least one first screening ring closure solution based on the ring closure electrical characteristics corresponding to each first screening ring closure solution, and determines at least one second screening ring closure solution, including:
for each first screening loop closing scheme, determining steady-state loop closing current and transient-state loop closing current corresponding to the first screening loop closing scheme based on the electrical characteristics of two sides of a candidate tie switch and dynamic equivalent impedance of the power distribution network, which are included in the first screening loop closing scheme;
and screening the at least one first screening ring closing scheme based on the steady state ring closing current and the transient state ring closing current corresponding to each first screening ring closing scheme, and determining at least one second screening ring closing scheme.
Specifically, the scheme screening module can obtain injection power measurement values of a plurality of low-voltage distribution nodes and voltage measurement values of the plurality of low-voltage distribution nodes in the low-voltage distribution network; acquiring injection current measurement values of a plurality of low-voltage distribution nodes in a low-voltage distribution network based on the injection power measurement values of the plurality of low-voltage distribution nodes and the voltage measurement values of the plurality of low-voltage distribution nodes; acquiring dynamic equivalent impedance of the low-voltage distribution network based on injection current measured values of the plurality of low-voltage distribution nodes and voltage measured values of the plurality of low-voltage distribution nodes; acquiring a loop closing voltage difference between two loop closing low-voltage distribution nodes when the low-voltage distribution network is closed; based on the loop closing voltage difference and the dynamic equivalent impedance, the steady-state loop closing current and the transient loop closing current are obtained, and further, whether the steady-state loop closing current and the transient loop closing current corresponding to the first screening loop closing scheme meet the preset steady-state loop closing current requirement and the preset transient loop closing current requirement is judged.
As shown in fig. 3, in some embodiments, the scheme screening module screens at least one second screening ring closing scheme based on the load characteristics of two sides of the candidate tie switches included in each second screening ring closing scheme, and determines a target ring closing scheme, including:
for each second screening ring closing scheme, determining the ring closing stability corresponding to the second screening ring closing scheme based on the operation state information and the electrical characteristics of the two sides of the candidate contact switch included in the second screening ring closing scheme;
for each second screening ring closing scheme, determining the user ring closing tolerance corresponding to the second screening ring closing scheme based on the load characteristics of two sides of the candidate contact switch included in the second screening ring closing scheme;
and screening at least one second screening ring closing scheme based on the ring closing stability and the user ring closing tolerance corresponding to each second screening ring closing scheme to determine a target ring closing scheme.
In some embodiments, the scheme screening module may determine failure rates of two sides of the candidate tie switch based on the operation state information and the electrical characteristics of two sides of the candidate tie switch included in the second screening ring closing scheme, and determine ring closing stability corresponding to the second screening ring closing scheme based on the failure rates of two sides of the candidate tie switch.
Fig. 4 is a schematic flow chart of determining a user closed-loop tolerance corresponding to a second screening closed-loop scheme according to some embodiments of the present disclosure, as shown in fig. 4, in some embodiments, the scheme screening module determines the user closed-loop tolerance corresponding to the second screening closed-loop scheme based on load characteristics of two sides of a candidate contact switch included in the second screening closed-loop scheme, including:
clustering the loads on two sides of the candidate contact switches included in the second screening ring closing scheme based on the load characteristics on two sides of the candidate contact switches included in the second screening ring closing scheme to generate a plurality of load cluster clusters;
establishing cluster portraits for each load cluster;
for each load cluster, determining cluster ring tolerance corresponding to the load cluster based on cluster representation of the load cluster through a tolerance prediction model;
and determining the user loop closing tolerance corresponding to the second screening loop closing scheme based on the cluster loop closing tolerance corresponding to each load cluster.
Specifically, the load characteristics may include at least a user type, information about the electric device, information about user feedback, and so on. The scheme screening module can establish load portraits based on load characteristics, calculate the load portraits similarity between the load portraits of any two loads, and cluster the loads on two sides of the candidate contact switch included in the second screening ring closing scheme through a k-means clustering algorithm (k-means clustering algorithm) based on the load portraits similarity between the load portraits of any two loads to generate a plurality of load cluster clusters.
In some embodiments, the solution screening module may select a second screening ring closure solution with higher ring closure stability and higher user ring closure tolerance as the target ring closure solution.
The scheme screening module can carry out weighted summation on cluster ring tolerance corresponding to each load cluster, and determine user ring tolerance corresponding to the second screening ring combining scheme.
The loop closing execution module can be used for controlling the plurality of contact switches to carry out loop closing power supply operation based on a target loop closing scheme.
In some embodiments, the closed loop execution module is further to: and determining a target ring closing time point based on the load characteristics of two sides of the target tie switch included in the target ring closing scheme.
In some embodiments, the loop closing execution module determines a target loop closing time point based on load electricity characteristics of two sides of a target tie switch included in the target loop closing scheme, including: the target closing time point is determined based on the electricity wave conditions of the loads on both sides of the target tie switch included in the target closing scheme.
Specifically, the loop closing execution module may obtain electricity consumption conditions of loads on two sides of the target tie switch in a plurality of history periods, where a time length of one history period may be one day, and the electricity consumption conditions of the loads in one history period may include electricity consumption amounts of the loads in a plurality of time periods of the history period. Splitting a history period into a plurality of sub-periods, wherein one sub-period comprises a plurality of time periods (for example, 08:00-10:00, 10:00-12:00 and 00-10:00), determining a first electric fluctuation value corresponding to the sub-period based on the electric consumption of the plurality of time periods included in the sub-period, determining a second electric fluctuation value of a load in each sub-period based on the electric consumption condition corresponding to each sub-period included in the plurality of history periods, determining a ring closing priority value of each sub-period based on the second electric fluctuation value of the load in each sub-period included in both sides of the target contact switch, and determining a target ring closing time point based on the ring closing priority value of each sub-period. For example, the target ring closing time point is determined based on the sub-period in which the ring closing priority value is largest. For example only, if the target ring closing scheme includes a load on both sides of the target tie switch at 04:00-06: if the second power consumption of 00 is minimum, the power consumption requirement of the load on two sides of the target tie switch included in the target loop closing scheme in the sub-period is minimum, and the loop closing execution module can perform the loop closing on 04 on the following day: 00-06:00 control a plurality of interconnection switches to carry out loop closing power supply operation. It will be appreciated that for each sub-period, the mean of the ring closure preference values for that sub-period at each historical period may be used as the ring closure preference value for that sub-period.
Specifically, the ring closure priority value for each sub-period over the history period may be calculated based on the following formula:
wherein (1)>For the closed-loop priority value of the T th sub-period in the T th history period, +.>Second electric wave value for the T-th sub-period in the T-th history period, +.>Second electric wave value for the y-th sub-period in the T-th history period, +.>For the first electric fluctuation value of the H load in the T subcycle of the T history period in the load on both sides of the target tie switch, H is the total number of loads on both sides of the target tie switch, +/->For the power consumption of the h-th load of the loads on both sides of the target tie switch at the kth time end of the T-th sub-period of the T-th history period, +.>And (2) the electricity consumption of the h load in the loads on the two sides of the target tie switch at the v time end of the T subcycle of the T history cycle is obtained, wherein K is the total number of time periods included in the T subcycle of the T history cycle.
While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations to the present disclosure may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this specification, and therefore, such modifications, improvements, and modifications are intended to be included within the spirit and scope of the exemplary embodiments of the present invention.
Meanwhile, the specification uses specific words to describe the embodiments of the specification. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the present description. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the present description may be combined as suitable.
Furthermore, the order in which the elements and sequences are processed, the use of numerical letters, or other designations in the description are not intended to limit the order in which the processes and methods of the description are performed unless explicitly recited in the claims. While certain presently useful inventive embodiments have been discussed in the foregoing disclosure, by way of various examples, it is to be understood that such details are merely illustrative and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements included within the spirit and scope of the embodiments of the present disclosure. For example, while the system components described above may be implemented by hardware devices, they may also be implemented solely by software solutions, such as installing the described system on an existing server or mobile device.
Likewise, it should be noted that in order to simplify the presentation disclosed in this specification and thereby aid in understanding one or more inventive embodiments, various features are sometimes grouped together in a single embodiment, figure, or description thereof. This method of disclosure, however, is not intended to imply that more features than are presented in the claims are required for the present description. Indeed, less than all of the features of a single embodiment disclosed above.
Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments of this specification. Other variations are possible within the scope of this description. Thus, by way of example, and not limitation, alternative configurations of embodiments of the present specification may be considered as consistent with the teachings of the present specification. Accordingly, the embodiments of the present specification are not limited to only the embodiments explicitly described and depicted in the present specification.
Claims (10)
1. The utility model provides a change power regulation and control system for low voltage distribution network without power outage based on multidimensional data, wherein, low voltage distribution network includes a plurality of low voltage distribution nodes and a plurality of tie switches at least, its characterized in that includes:
the data acquisition module is used for acquiring structural information, electrical equipment parameters and historical operation data of the low-voltage power distribution network and establishing a link node association map;
the scheme generation module is used for determining a plurality of candidate ring closing schemes corresponding to the ring closing nodes to be closed based on the ring closing node association map, wherein the candidate ring closing schemes comprise candidate contact switches;
the scheme screening module is used for screening the plurality of candidate ring closing schemes based on the electrical characteristics and the load characteristics of two sides of the candidate contact switch included by each candidate ring closing scheme and the ring closing electrical characteristics corresponding to the candidate ring closing schemes, and determining a target ring closing scheme;
and the loop closing execution module is used for controlling the plurality of contact switches to carry out loop closing power supply operation based on the target loop closing scheme.
2. The uninterruptible power supply regulation and control system based on multidimensional data according to claim 1, wherein the data acquisition module acquires structural information, electrical equipment parameters and historical operation data of the low-voltage power distribution network, and establishes a resultant link node association map, and the system comprises:
based on the structural information of the low-voltage power distribution network and electrical equipment parameters, establishing a topological structure of the low-voltage power distribution network;
determining the ring closing association degree of any two low-voltage distribution nodes based on the topological structure and the historical operation data of the low-voltage distribution network;
and establishing a link closing node association map based on the topological structure of the low-voltage distribution network and the link closing association degree of any two low-voltage distribution nodes.
3. The uninterruptible power supply regulation and control system based on multidimensional data according to claim 2, wherein the data acquisition module determines a degree of loop closing association of any two low-voltage distribution nodes based on a topology structure and historical operation data of the low-voltage distribution network, and the system comprises:
determining the historical fault rate of each low-voltage distribution node through the historical operation data of the low-voltage distribution network;
and determining the ring closing association degree of any two low-voltage distribution nodes based on the historical fault rate of each low-voltage distribution node and the topological structure of the low-voltage distribution network.
4. The uninterruptible power supply regulation and control system based on multidimensional data according to any one of claims 1 to 3, wherein the scheme screening module screens the plurality of candidate ring closing schemes based on electrical characteristics and load characteristics of two sides of a candidate contact switch included in each of the candidate ring closing schemes and ring closing electrical characteristics corresponding to the candidate ring closing schemes, and determines a target ring closing scheme, including:
screening the plurality of candidate ring closing schemes based on the electrical characteristics of two sides of a candidate contact switch included in each candidate ring closing scheme, and determining at least one first screening ring closing scheme;
screening the at least one first screening ring closing scheme based on the ring closing electrical characteristics corresponding to each first screening ring closing scheme, and determining at least one second screening ring closing scheme;
and screening the at least one second screening ring closing scheme based on the load characteristics of two sides of the candidate contact switch included in each second screening ring closing scheme, and determining the target ring closing scheme.
5. The uninterruptible power supply regulation system based on multidimensional data of claim 4, wherein the scheme screening module screens the plurality of candidate ring closing schemes based on electrical characteristics of two sides of a candidate tie switch included in each of the candidate ring closing schemes to determine at least one first screening ring closing scheme, comprising:
for each candidate loop closing scheme, determining voltage differences, phase angle differences and frequency differences corresponding to the candidate loop closing schemes based on the electrical characteristics of two sides of a candidate tie switch included in the candidate loop closing scheme;
and screening the plurality of candidate ring closing schemes based on the voltage difference, the phase angle difference and the frequency difference corresponding to each candidate ring closing scheme, and determining at least one first screening ring closing scheme.
6. The uninterruptible power supply regulation and control system based on multidimensional data of claim 4, wherein the scheme screening module screens the at least one first screening ring closing scheme based on ring closing electrical characteristics corresponding to each of the first screening ring closing schemes to determine at least one second screening ring closing scheme, comprising:
for each first screening loop closing scheme, determining a steady-state loop closing current and a transient-state loop closing current corresponding to the first screening loop closing scheme based on the electrical characteristics of two sides of a candidate tie switch included in the first screening loop closing scheme and the dynamic equivalent impedance of the low-voltage power distribution network;
and screening the at least one first screening loop closing scheme based on the steady-state loop closing current and the transient loop closing current corresponding to each first screening loop closing scheme, and determining at least one second screening loop closing scheme.
7. The uninterruptible power supply regulation system based on multidimensional data of claim 4, wherein the scheme screening module screens the at least one second screening ring closing scheme based on load characteristics of two sides of a candidate contact switch included in each of the second screening ring closing schemes, and determines the target ring closing scheme, comprising:
for each second screening ring closing scheme, determining the ring closing stability corresponding to the second screening ring closing scheme based on the operation state information and the electrical characteristics of two sides of the candidate contact switch included in the second screening ring closing scheme;
for each second screening ring closing scheme, determining the user ring closing tolerance corresponding to the second screening ring closing scheme based on the load characteristics of two sides of the candidate contact switch included in the second screening ring closing scheme;
and screening the at least one second screening ring closing scheme based on the ring closing stability and the user ring closing tolerance corresponding to each second screening ring closing scheme, and determining the target ring closing scheme.
8. The uninterruptible power supply regulation and control system based on multidimensional data according to claim 7, wherein the scheme screening module determines a user closed-loop tolerance corresponding to the second screening closed-loop scheme based on load characteristics of two sides of a candidate contact switch included in the second screening closed-loop scheme, and the system comprises:
clustering the loads on two sides of the candidate contact switches included in the second screening ring closing scheme based on the load characteristics on two sides of the candidate contact switches included in the second screening ring closing scheme to generate a plurality of load cluster clusters;
establishing cluster portraits for each load cluster;
for each load cluster, determining cluster ring tolerance corresponding to the load cluster based on cluster portrait of the load cluster through a tolerance prediction model;
and determining the user ring closing tolerance corresponding to the second screening ring closing scheme based on the cluster ring closing tolerance corresponding to each load cluster.
9. A uninterruptible power supply regulation system based on multidimensional data according to any one of claims 1-3, wherein the closed loop execution module is further configured to:
and determining a target ring closing time point based on the load characteristics of two sides of the target tie switch included in the target ring closing scheme.
10. The uninterruptible power supply regulation and control system based on multidimensional data according to claim 9, wherein the loop closing execution module determines a target loop closing time point based on load power utilization characteristics of two sides of a target tie switch included in the target loop closing scheme, and the uninterruptible power supply regulation and control system comprises:
and determining the target closing time point based on the electricity wave condition of the loads on two sides of the target tie switch included in the target closing scheme.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026085A (en) * | 2016-06-27 | 2016-10-12 | 中国南方电网有限责任公司 | Power distribution network closed-loop power supply transferring path optimum decision method |
| CN109103879A (en) * | 2018-10-18 | 2018-12-28 | 国网四川省电力公司德阳供电公司 | A kind of full dimension closed loop network appraisal procedure |
| CN109378815A (en) * | 2018-07-09 | 2019-02-22 | 南方电网科学研究院有限责任公司 | Power distribution network closed loop switching power supply control method, device and equipment |
| CN111740414A (en) * | 2020-06-30 | 2020-10-02 | 广东电网有限责任公司广州供电局 | Closed loop switching power supply controller and method thereof, and low-voltage load seamless transfer device |
| CN112260282A (en) * | 2020-08-17 | 2021-01-22 | 重庆大学 | Active power distribution network transfer optimization method considering closed loop current constraint |
| CN113780856A (en) * | 2021-09-17 | 2021-12-10 | 天津大学 | Power distribution network operation evaluation method considering influence of information system on real-time reconstruction |
| WO2022048764A1 (en) * | 2020-09-04 | 2022-03-10 | Huawei Digital Power Technologies Co., Ltd. | Devices and methods for improving a grid synchronization of unidirectional power converters |
| CN115000940A (en) * | 2022-06-01 | 2022-09-02 | 广东电网有限责任公司广州供电局 | Comprehensive selection method for power distribution network loop closing points |
| CN115392761A (en) * | 2022-09-05 | 2022-11-25 | 国网甘肃省电力公司嘉峪关供电公司 | Power distribution network uninterrupted loop closing operation assistant decision-making method |
| CN116993093A (en) * | 2023-08-01 | 2023-11-03 | 广东电网有限责任公司 | Method, device, equipment and medium for determining operation mode of medium-low voltage line |
-
2023
- 2023-12-11 CN CN202311688484.9A patent/CN117394369B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026085A (en) * | 2016-06-27 | 2016-10-12 | 中国南方电网有限责任公司 | Power distribution network closed-loop power supply transferring path optimum decision method |
| CN109378815A (en) * | 2018-07-09 | 2019-02-22 | 南方电网科学研究院有限责任公司 | Power distribution network closed loop switching power supply control method, device and equipment |
| CN109103879A (en) * | 2018-10-18 | 2018-12-28 | 国网四川省电力公司德阳供电公司 | A kind of full dimension closed loop network appraisal procedure |
| CN111740414A (en) * | 2020-06-30 | 2020-10-02 | 广东电网有限责任公司广州供电局 | Closed loop switching power supply controller and method thereof, and low-voltage load seamless transfer device |
| CN112260282A (en) * | 2020-08-17 | 2021-01-22 | 重庆大学 | Active power distribution network transfer optimization method considering closed loop current constraint |
| WO2022048764A1 (en) * | 2020-09-04 | 2022-03-10 | Huawei Digital Power Technologies Co., Ltd. | Devices and methods for improving a grid synchronization of unidirectional power converters |
| CN113780856A (en) * | 2021-09-17 | 2021-12-10 | 天津大学 | Power distribution network operation evaluation method considering influence of information system on real-time reconstruction |
| CN115000940A (en) * | 2022-06-01 | 2022-09-02 | 广东电网有限责任公司广州供电局 | Comprehensive selection method for power distribution network loop closing points |
| CN115392761A (en) * | 2022-09-05 | 2022-11-25 | 国网甘肃省电力公司嘉峪关供电公司 | Power distribution network uninterrupted loop closing operation assistant decision-making method |
| CN116993093A (en) * | 2023-08-01 | 2023-11-03 | 广东电网有限责任公司 | Method, device, equipment and medium for determining operation mode of medium-low voltage line |
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