CN107144723A - A kind of Power System Intelligent detects warning system - Google Patents

A kind of Power System Intelligent detects warning system Download PDF

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Publication number
CN107144723A
CN107144723A CN201710319007.3A CN201710319007A CN107144723A CN 107144723 A CN107144723 A CN 107144723A CN 201710319007 A CN201710319007 A CN 201710319007A CN 107144723 A CN107144723 A CN 107144723A
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不公告发明人
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Shanghai Phase Resistant Intelligent Technology Co Ltd
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Shanghai Phase Resistant Intelligent Technology Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16528Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations

Abstract

Warning system is detected the invention provides a kind of Power System Intelligent, including sensor assembly, signal processing module, signal conversion module and detection and alarm module, the sensor assembly include it is preceding to selection submodule, it is backward update submodule and surplus calculating sub module, for gathering the correlated current in power system, voltage signal;The signal processing module is used to correlated current, voltage signal being filtered processing;The signal conversion module is used to correlated current, voltage signal will be carried out into A/D conversions after filtering process;The detection is used to detect correlated current in power system, voltage indicator signal with alarm module, and sends alarm when correlated current, voltage indicator signal exceed early warning value.The present invention detects that detection efficiency is high using improved sensor to power system, and accuracy is big, and message transmission rate is fast, and be greatly improved help to the operating efficiency of power system detection staff.

Description

A kind of Power System Intelligent detects warning system
Technical field
The present invention relates to power system detection field, and in particular to a kind of Power System Intelligent detects warning system.
Background technology
Power system detecting system in correlation technique is different generally according to the different assemblings of distributed grid-connected electricity generation system Grid-connected detection transposition and net-connected controller, it is impossible to unitized management is realized, virtually to the work for being engaged in associate power system administration Make making troubles for personnel, add its workload, waste its effective time, it is therefore desirable to which one kind can improve its efficiency Electricity in system detectio system.
The content of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of Power System Intelligent detects warning system.
The purpose of the present invention is realized using following technical scheme:
A kind of Power System Intelligent detects warning system, including sensor assembly, signal processing module, signal conversion module With detection and alarm module, the sensor assembly include it is preceding to selection submodule, backward update submodule and surplus calculates son Module, for gathering the correlated current in power system, voltage signal;The signal processing module is used for correlated current, electricity Pressure signal is filtered processing;The signal conversion module is used to carry out correlated current, voltage signal after filtering process A/D is changed;The detection is used to detect correlated current in power system, voltage indicator signal with alarm module, and mutually powered-down Stream, voltage indicator signal send alarm when exceeding early warning value.
Beneficial effects of the present invention are:The present invention uses improved sensor to detect power system, detection efficiency Height, accuracy is big, and message transmission rate is fast, detects that the operating efficiency of staff is greatly improved help to power system.
Brief description of the drawings
Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not constitute any limit to the present invention System, for one of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to the following drawings Other accompanying drawings.
Fig. 1 is the frame construction drawing of the present invention.
Reference:
Sensor assembly 1, signal processing module 2, signal conversion module 3, detection and alarm module 4, forward direction selection submodule Block 11, backward renewal submodule 12 and surplus calculating sub module 13.
Embodiment
With reference to following application scenarios, the invention will be further described.
Referring to Fig. 1, a kind of Power System Intelligent of the present embodiment is detected at warning system, including sensor assembly 1, signal Manage module 2, signal conversion module 3 and detection and alarm module 4, the sensor assembly 1 include it is preceding to selection submodule 11, after To submodule 12 and surplus calculating sub module 13 is updated, for gathering the correlated current in power system, voltage signal;The letter Number processing module 2 is used to correlated current, voltage signal being filtered processing;The signal conversion module 3 is used at filtering Correlated current, voltage signal are subjected to A/D conversions after reason;The detection is used to detect phase in power system with alarm module 4 Powered-down stream, voltage indicator signal, and send alarm when correlated current, voltage indicator signal exceed early warning value.
Preferably, the correlated current, voltage signal include the three-phase current signal of inverter output end in power system, The three-phase voltage of inverter output end is believed in the three-phase current signal of the standard of breaker output end, power system in power system Number, the three-phase voltage signal and frequency signal of the standard of breaker output end in power system.
Preferably, it is characterized in that, it is described detection with alarm module detect data include power factor (PF), voltage deviation, electricity Press fluctuation, tri-phase unbalance factor, frequency departure and voltage distortion rate.
The above embodiment of the present invention, is detected using improved sensor to power system, and detection efficiency is high, accuracy Greatly, message transmission rate is fast, detects that the operating efficiency of staff is greatly improved help to power system.
Preferably, the sensor assembly is designed using Principle of Ant Colony Algorithm, is starting the correlation to power system Before electric current, voltage signal information are acquired, Initialize installation is carried out to sensor network:On the source node before construction X To human oasis exploited, start one and take turns route searching, assign per paths identical pheromone concentration initial value and energy initial value;
Optimal Signals transmission path is asked for specifically include:Forward direction selection submodule, backward renewal submodule and surplus are calculated Submodule;
The forward direction selection submodule is used to scan for feasible signal transmission path, and forward direction human oasis exploited is in path In search procedure, next node is selected according to forward probability size, when i-th forward direction human oasis exploited is carried out before next step to having When node may be selected, forward next node may be selected by going out it by self-defined forward probability calculation, wherein self-defined move ahead The calculation formula of probability is:
In formula, Fi mn(x) represent that i-th forward direction human oasis exploited is transferred to node n probability, J at the x moment from node mmn(x) For the pheromone concentration on x moment sides (m, n), Kmn(x) node n heuristic information, ω are transferred to from node m for the x momentnFor section Point n current remaining, ρ and ε be regulation parameter, represent pheromone concentration, heuristic information and capacity factor in forward direction respectively Human oasis exploited is to the relative importance in Path selection, and δ+ρ+ε=3, I are the preceding total quantity to human oasis exploited, and D is to be preceding to people Path bandwidth and the path delay of time in the set of the optional node of work ant, [m, n, l] ∈ D, D between all optional nodes is equal Less than bandwidth constraint and delay constraint, Jml(x) it is the information concentration on x moment sides (m, l), Kml(x) it is to be transferred to from node m Save l heuristic information, ωlFor node l current remaining,For the average value of D interior joint energy, all optional sections in D The current remaining of point is less than energy constraint;
When it is empty set that i-th forward direction human oasis exploited, which carries out next step to advance without optional node, i.e. D, Fi mn(x)= 0, this is preceding dead to human oasis exploited, search failure;
In the first round searches for, network node energy and pheromone concentration are more or less the same, so self-defined forward probability The size of heuristic information is depended primarily on, its calculation formula is:
In formula, rmnDistances of the node m to node n.
The above embodiment of the present invention, Power System Intelligent detect warning system sensor assembly in by construction before to Human oasis exploited, calculates every forward direction human oasis exploited to the select probability of node, after the selection of a large amount of forward direction human oasis exploiteds, The node of most forward direction human oasis exploited selections can leave most pheromones, can finally make all preceding identical to human oasis exploited selection Path, i.e. optimal path, using this intelligent group of human oasis exploited, selected node by cooperating between individual Select, be conducive to the sensor assembly for improving this Power System Intelligent detection warning system to the mutually powered-down of the power system that is detected Efficiency when stream, voltage signal information collection, and selection of the human oasis exploited to path is non-unique, when optimal path occurs Failure, human oasis exploited is also an option that the optimal path in the case of failure, so that this Power System Intelligent detection warning system Sensor network has good adaptability, while improving the stability of power information transmission.
Preferably, the backward renewal submodule is updated using backward human oasis exploited to the pheromone concentration in path, Including:Forward direction human oasis exploited is reached after node n, calculates pheromone concentration increment according to nodal information, and be copied to backward people Work ant, backward human oasis exploited edge is preceding to the reverse return node m of human oasis exploited progress path, and to the letter of side (m, n) in path The plain concentration of breath is updated, and asks for the pheromone concentration of optimal path, when being updated to pheromone concentration using it is following more New formula:
If node m to node n route footpath not be optimal path, when being updated to pheromone concentration using it is following more New formula:
In formula, ψmn(x+k) pheromone concentration of (x+k) moment side (m, n), ψ are representedmn(x) represent x moment sides (m, n) Pheromone concentration, Δ ψi mnThe pheromone concentration left during for i-th forward direction human oasis exploited by side (m, n), v is control parameter, 0 < v < 1, I are backward human oasis exploited sum, and A is constant, and M is the total length of optimal path.
The above embodiment of the present invention, reaches destination node used time most short first forward direction human oasis exploited in the path of process On leave pheromones, first backward human oasis exploited for walking, can be along its backtracking according to the pheromone concentration on path, and profit The pheromone concentration on footpath that satisfied the need with self-defined more new formula is updated, in the course of time, the pheromone concentration meeting on this path Highest, finally all human oasis exploiteds can all select this paths, in this way, this Power System Intelligent detects the sensor of warning system The Path selection of information transfer is changed into optimal selection by randomly choosing in network, and path is intelligently fixed, therefore algorithm Shandong Therefore rod can be greatly enhanced, while also correlated current, voltage signal information of the enhancing sensor assembly to power system Gather reliability.
Preferably, the surplus calculating sub module is used to enter the pheromones left behind certain path to human oasis exploited before calculating Concentration, be specially:Bandwidth left amount and all backward artificial ants when last backward human oasis exploited passes through link (n, m) When the maximum fluctuation sum of the link bandwidth surplus of ant estimation is more than or equal to bandwidth constraint, computation bandwidth value, using making by oneself Adopted bandwidth function pair bandwidth is calculated:
In formula, L represents self-defined bandwidth calculation function, Qnm 1When passing through link (n, m) for last backward human oasis exploited Bandwidth left amount, Δ Qmn 0The maximum fluctuation value for the link bandwidth surplus estimated before all to human oasis exploited, Qmn 0Last Forward direction human oasis exploited passes through bandwidth left amount during link (m, n), and Z is bandwidth constraint;
Bandwidth left amount when last backward human oasis exploited passes through link (n, m) is estimated with all backward human oasis exploiteds When the maximum fluctuation sum of the link bandwidth surplus of calculation is less than bandwidth constraint, L=0;
Obtain after bandwidth value, calculate n-th forward direction human oasis exploited by node m to node n path optimal path when The pheromone concentration left, calculation formula is:
In formula, Δ ψi mnRepresent i-th forward direction human oasis exploited by node m to node n path optimal path when leave Pheromone concentration, ζ1For bandwidth function weight factor, ζ2Time delay weight factor, and ζ12=1, E are delay constraint, enmFor chain The time delay on road (n, m);
Finally, after each round search terminates, I forward direction human oasis exploited is reset in source node, continues next round and searches Rope, until completing defined iterations, tries to achieve optimal path.
The above embodiment of the present invention, it is contemplated that the situation of change of the path bandwidth of intelligent testing and warning system, to path band Wide calculating, the path for being unsatisfactory for bandwidth requirement is eliminated, and the relatively stable path of selection bandwidth carries out electric power signal transmission, subtracts During few path fracture, electric power signal transmission is obstructed, retransmits the occurrence of, advantageously account for Power System Intelligent detection and alarm Network congestion and latency issue in system, strengthen the stability of sensor network, extend the life-span of sensor assembly.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than to present invention guarantor The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention Matter and scope.

Claims (6)

1. a kind of Power System Intelligent detects warning system, it is characterized in that, including sensor assembly, signal processing module, signal Modular converter and detection and alarm module, the sensor assembly include it is preceding to selection submodule, backward update submodule and remaining Gauge operator module, for gathering the correlated current in power system, voltage signal;The signal processing module is used for correlation Electric current, voltage signal are filtered processing;The signal conversion module is used to believe correlated current, voltage after filtering process Number carry out A/D conversions;The detection is used to detect correlated current in power system, voltage indicator signal with alarm module, and Correlated current, voltage indicator signal send alarm when exceeding early warning value.
2. a kind of Power System Intelligent detection warning system according to claim 1, it is characterized in that, the correlated current, Voltage signal includes the three-phase current signal of inverter output end in power system, the standard of breaker output end in power system Three-phase current signal, in power system inverter output end three-phase voltage signal, breaker output end in power system The three-phase voltage signal and frequency signal of standard.
3. a kind of Power System Intelligent detection warning system according to claim 1, it is characterized in that, the detection and alarm Module detects that data include power factor (PF), voltage deviation, voltage pulsation, tri-phase unbalance factor, frequency departure and voltage distortion Rate.
4. a kind of Power System Intelligent detection warning system according to claim 1, it is characterized in that, the sensor assembly It is designed using improved ant group algorithm, asks for Optimal Signals transmission path;
The forward direction selection submodule is used to scan for feasible information transmission path, and forward direction human oasis exploited is in route searching During, next node is selected according to forward probability size, when optional to having before i-th forward direction human oasis exploited progress next step When selecting node, forward next node may be selected by going out it by self-defined forward probability calculation, wherein self-defined forward probability Calculation formula be:
<mrow> <msub> <msup> <mi>F</mi> <mi>i</mi> </msup> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> <mo>=</mo> <mfrac> <mrow> <msup> <mrow> <mo>&amp;lsqb;</mo> <msub> <mi>J</mi> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> <mo>&amp;rsqb;</mo> </mrow> <mi>&amp;delta;</mi> </msup> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>&amp;lsqb;</mo> <msub> <mi>K</mi> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> <mo>&amp;rsqb;</mo> </mrow> <mi>&amp;rho;</mi> </msup> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>&amp;lsqb;</mo> <msub> <mi>&amp;omega;</mi> <mi>n</mi> </msub> <mo>/</mo> <mover> <mi>&amp;omega;</mi> <mo>&amp;OverBar;</mo> </mover> <mo>&amp;rsqb;</mo> </mrow> <mi>&amp;epsiv;</mi> </msup> <mo>+</mo> <msup> <mrow> <mo>(</mo> <mfrac> <mrow> <msup> <mi>I</mi> <mn>2</mn> </msup> <mo>-</mo> <mn>1</mn> </mrow> <msup> <mi>I</mi> <mn>2</mn> </msup> </mfrac> <mi>ln</mi> <mi>I</mi> <mo>)</mo> </mrow> <mn>0.15</mn> </msup> </mrow> <mrow> <msubsup> <mi>&amp;Sigma;</mi> <mi>l</mi> <mi>D</mi> </msubsup> <msup> <mrow> <mo>&amp;lsqb;</mo> <msub> <mi>J</mi> <mrow> <mi>m</mi> <mi>l</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> <mo>&amp;rsqb;</mo> </mrow> <mi>&amp;delta;</mi> </msup> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>&amp;lsqb;</mo> <msub> <mi>K</mi> <mrow> <mi>m</mi> <mi>l</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> <mo>&amp;rsqb;</mo> </mrow> <mi>&amp;rho;</mi> </msup> <mo>&amp;CenterDot;</mo> <msup> <mrow> <mo>&amp;lsqb;</mo> <msub> <mi>&amp;omega;</mi> <mi>l</mi> </msub> <mo>/</mo> <mover> <mi>&amp;omega;</mi> <mo>&amp;OverBar;</mo> </mover> <mo>&amp;rsqb;</mo> </mrow> <mi>&amp;epsiv;</mi> </msup> </mrow> </mfrac> </mrow>
In formula, Fi mn(x) represent that i-th forward direction human oasis exploited is transferred to node n probability, J at the x moment from node mmn(x) it is x Pheromone concentration on moment side (m, n), Kmn(x) node n heuristic information, ω are transferred to from node m for the x momentnFor node n Current remaining, δ, ρ and ε are regulation parameter, represent pheromone concentration, heuristic information and capacity factor in forward direction people respectively Work ant is to the relative importance in Path selection, and δ+ρ+ε=3, I are the preceding total quantity to human oasis exploited;
The path band between all optional nodes in the set of node, [m, n, l] ∈ D, D may be selected in D for before to human oasis exploited The wide and path delay of time is respectively less than bandwidth constraint and delay constraint, Jml(x) it is the information concentration on x moment sides (m, l), Kml(x) it is Section l heuristic information, ω are transferred to from node mlFor node l current remaining,For the average value of D interior joint energy, D In all optional nodes current remaining be less than energy constraint;
When it is empty set that i-th forward direction human oasis exploited, which carries out next step to advance without optional node, i.e. D, Fi mn(x)=0, should Forward direction human oasis exploited is dead, search failure.
5. a kind of Power System Intelligent detection warning system according to claim 4, it is characterized in that, backward renewal Module is updated using backward human oasis exploited to the pheromone concentration in path, including:Forward direction human oasis exploited is reached after node n, Pheromone concentration increment is calculated according to nodal information, and is copied to backward human oasis exploited, backward human oasis exploited is along preceding to artificial The reverse return node m of ant progress path, and the pheromone concentration of side (m, n) in path is updated, ask for optimal path Pheromone concentration, when being updated to pheromone concentration use following more new formula:
<mrow> <msub> <mi>&amp;psi;</mi> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>+</mo> <mi>k</mi> <mo>)</mo> </mrow> <mo>=</mo> <msup> <mrow> <mo>(</mo> <mn>1</mn> <mo>-</mo> <mi>v</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <msub> <mi>&amp;psi;</mi> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> <mo>+</mo> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>i</mi> <mo>=</mo> <mn>1</mn> </mrow> <mi>I</mi> </munderover> <mfrac> <mrow> <msub> <msup> <mi>k&amp;Delta;&amp;psi;</mi> <mi>i</mi> </msup> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>I</mi> <mo>-</mo> <mi>i</mi> <mo>)</mo> </mrow> </mrow> <msup> <mi>I</mi> <mn>2</mn> </msup> </mfrac> <mo>+</mo> <mfrac> <mi>A</mi> <mi>M</mi> </mfrac> </mrow>
If node m is not optimal path to node n route footpath, update public using following when being updated to pheromone concentration Formula:
<mrow> <msub> <mi>&amp;psi;</mi> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>+</mo> <mi>k</mi> <mo>)</mo> </mrow> <mo>=</mo> <msup> <mrow> <mo>(</mo> <mn>1</mn> <mo>-</mo> <mi>v</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <msub> <mi>&amp;psi;</mi> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> <mo>+</mo> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>i</mi> <mo>=</mo> <mn>1</mn> </mrow> <mi>I</mi> </munderover> <mfrac> <mrow> <msub> <msup> <mi>k&amp;Delta;&amp;psi;</mi> <mi>i</mi> </msup> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mrow> <mo>(</mo> <mi>I</mi> <mo>-</mo> <mi>i</mi> <mo>)</mo> </mrow> </mrow> <msup> <mi>I</mi> <mn>2</mn> </msup> </mfrac> </mrow>
In formula, ψmn(x+k) pheromone concentration of (x+k) moment side (m, m), ψ are representedmn(x) information of x moment sides (m, n) is represented Plain concentration, Δ ψi mnThe pheromone concentration left during for i-th forward direction human oasis exploited by side (m, n), v is control parameter, 0 < 1, I is backward human oasis exploited sum, and k is incremental time, and A is constant, and M is the total length of optimal path.
6. a kind of Power System Intelligent detection warning system according to claim 5, it is characterized in that, the surplus calculates son Module is used to enter the pheromone concentration left behind certain path to human oasis exploited before calculating, and is specially:As last backward people The maximum for the link bandwidth surplus that bandwidth left amount when work ant passes through link (n, m) is estimated with all backward human oasis exploiteds When fluctuating sum more than or equal to bandwidth constraint, computation bandwidth value is calculated using self-defined bandwidth function pair bandwidth:
In formula, L represents self-defined bandwidth calculation function, Δ Qmn 0The link bandwidth surplus estimated before all to human oasis exploited Maximum fluctuation value, Qmn 0Last forward direction human oasis exploited passes through bandwidth left amount during link (m, n), Qnm 1After last Bandwidth left amount when passing through from link (n, m) to human oasis exploited, Z is bandwidth constraint;
Bandwidth left amount and all backward human oasis exploited estimations when last backward human oasis exploited passes through link (n, m) When the maximum fluctuation sum of link bandwidth surplus is less than bandwidth constraint, L=0;
Obtain after bandwidth value, calculate n-th forward direction human oasis exploited by node m to node n path optimal path when leave Pheromone concentration, calculation formula is:
<mrow> <msub> <msup> <mi>&amp;Delta;&amp;psi;</mi> <mi>i</mi> </msup> <mrow> <mi>m</mi> <mi>n</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>&amp;zeta;</mi> <mn>1</mn> </msub> <mi>L</mi> <mo>+</mo> <msub> <mi>&amp;zeta;</mi> <mn>2</mn> </msub> <mfrac> <mrow> <mi>E</mi> <mo>-</mo> <msub> <mi>e</mi> <mrow> <mi>n</mi> <mi>m</mi> </mrow> </msub> </mrow> <mi>E</mi> </mfrac> </mrow>
In formula, Δ ψi mnRepresent i-th forward direction human oasis exploited by node m to node n path optimal path when the letter that leaves The plain concentration of breath, ζ1For bandwidth function weight factor, ζ2Time delay weight factor, and ζ12=1, E are delay constraint, enmFor link The time delay of (n, m).
CN201710319007.3A 2017-05-08 2017-05-08 A kind of Power System Intelligent detects warning system Withdrawn CN107144723A (en)

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