CN116840732A - Distributed power supply device monitoring system for wind power plant - Google Patents
Distributed power supply device monitoring system for wind power plant Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/10—Combinations of wind motors with apparatus storing energy
- F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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Abstract
The invention discloses a distributed power supply device monitoring system for a wind power plant, which relates to the technical field of distributed power supply monitoring, and comprises a power supply monitoring time setting module, a power supply information acquisition module, a power supply appearance analysis module, a power supply environment analysis module, a power supply operation analysis module, a power supply comprehensive state analysis module, a replacement power supply analysis module, an early warning terminal and a display terminal; through monitoring the meteorological information of the energy storage power supply area near the wind power plant, when the meteorological is abnormal, a monitoring time point is set, and then the appearance, the internal environment and the operation of the energy storage power supply at each monitoring point are monitored, and when the energy storage power supply is in an abnormal state, the corresponding substitute energy storage power supply of the energy storage power supply is analyzed, and early warning is carried out simultaneously, so that the timeliness of the maintenance of the energy storage power supply and the stability of wind power generation and power grid power supply are ensured, and the defect of manual periodic inspection in the prior art is overcome.
Description
Technical Field
The invention relates to the technical field of distributed power supply monitoring, in particular to a distributed power supply device monitoring system for a wind power plant.
Background
The wind power generation is greatly influenced by environmental factors, and in order to improve the stability of power supply, an energy storage power supply is usually installed near wind power generation equipment, but the energy storage power supply is inevitably exposed to wind, sun and extreme weather, so that the safety of the energy storage power supply is required to be monitored.
In the prior art, the monitoring of the stored energy power supply near the installation of the wind power generation equipment is mainly carried out by manual periodic inspection, and obviously, the monitoring mode has at least the following problems: 1. when encountering inclement weather, the degree of difficulty of manual monitoring is greatly increased, the accuracy of monitoring results cannot be guaranteed simultaneously, so that the operation safety of the energy storage power supply in a severe environment cannot be guaranteed, on the other hand, the time of fault discovery of the energy storage power supply cannot be guaranteed through manual regular inspection, the maintenance time of the energy storage power supply is prolonged, and certain influence is also caused on wind power generation and power grid operation.
2. In the prior art, when the energy storage power supply is maintained, the energy storage power supply capable of replacing the energy storage power supply to replace a fault is not selected, so that the stability of wind power generation and power supply of a power grid cannot be guaranteed, the smoothness of power consumption of a user is affected, the loss of electric energy is increased to a certain extent, the running efficiency of the power grid cannot be improved, the maintenance pressure of maintenance personnel is increased, and the maintenance effect is affected.
Disclosure of Invention
In view of the above-mentioned technical shortcomings, it is an object of the present invention to provide a distributed power device monitoring system for a wind farm.
In order to solve the technical problems, the invention adopts the following technical scheme: the invention provides a distributed power supply device monitoring system for a wind farm, comprising: the power supply monitoring time setting module is used for acquiring weather information of the installation area corresponding to the energy storage power supply in each day in a set period, and further setting each monitoring time point corresponding to the energy storage power supply, wherein the weather information comprises temperature and wind speed;
the power supply information acquisition module is used for acquiring images, internal environment information and operation information corresponding to the energy storage power supply at each monitoring time point;
the power supply appearance analysis module is used for analyzing appearance evaluation coefficients corresponding to the energy storage power supply according to images corresponding to the energy storage power supply at each monitoring time point, and recording the appearance evaluation coefficients as
The power supply environment analysis module is used for analyzing the coincidence coefficient of the internal environment corresponding to the energy storage power supply according to the environment information of the internal environment corresponding to each monitoring time point of the energy storage power supply, and marking the coincidence coefficient as alpha;
the power supply operation analysis module is used for analyzing an operation state evaluation coefficient corresponding to the energy storage power supply according to the operation information corresponding to the energy storage power supply at each monitoring time point, and marking the operation state evaluation coefficient as beta;
the power supply comprehensive state analysis module is used for analyzing the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply according to the appearance evaluation coefficient corresponding to the energy storage power supply, the coincidence coefficient of the internal environment and the running state evaluation coefficient, and judging whether the state corresponding to the energy storage power supply is in a safety state or not;
the replacement power supply analysis module is used for analyzing the replacement energy storage power supply corresponding to the energy storage power supply when the state corresponding to the energy storage power supply is in a dangerous state and sending the analysis result to the display terminal;
the early warning terminal is used for carrying out early warning prompt when the state corresponding to the energy storage power supply is in a dangerous state;
and the display terminal is used for displaying the replacement energy storage power supply corresponding to the energy storage power supply.
Preferably, each monitoring time point is set, and the specific setting process is as follows: acquiring a temperature interval and a wind speed interval of a power supply corresponding to a safety area in a set period from a weather center, and taking the maximum temperature in the temperature interval and the maximum wind speed in the wind speed interval of each day as the temperature and the wind speed of each day;
comparing the temperature and the wind speed corresponding to each day with a preset standard temperature interval and a preset wind speed threshold value respectively, and if the temperature corresponding to a certain day is greater than or equal to the upper limit value of the standard temperature interval or less than or equal to the lower limit value of the standard temperature interval and the wind speed of the certain day is less than the wind speed threshold value, acquiring a time point corresponding to the temperature of the certain day and taking the time point as a monitoring initial time point;
if the wind speed corresponding to a certain day is greater than or equal to a wind speed threshold value and the temperature of the certain day is in a standard temperature interval, acquiring a time point corresponding to the wind speed of the certain day, and taking the time point as a monitoring initial time point;
if the wind speed corresponding to a certain day is greater than or equal to a wind speed threshold value, and the temperature of the certain day is greater than or equal to a standard temperature interval upper limit value or less than or equal to a standard temperature interval lower limit value, acquiring a time point corresponding to the temperature of the certain day and a time point corresponding to the wind speed of the certain day, comparing the time point corresponding to the temperature of the certain day with the time point corresponding to the wind speed, and selecting a minimum time point as a monitoring initial time point;
taking the monitoring initial time point as a starting time point, and distributing each monitoring time point according to a preset time interval, thereby obtaining each monitoring time point.
Preferably, the environmental information in the energy storage power supply corresponding to each monitoring time point comprises dust concentration and humidity; the operation information corresponding to each monitoring time point of the energy storage power supply comprises battery voltage and battery current.
Preferably, the analyzing the appearance evaluation coefficient corresponding to the energy storage power supply specifically includes the following steps: acquiring the corresponding size of each gap in the energy storage power supply at each monitoring time point from the corresponding image of the energy storage power supply at each monitoring time point, and marking as C it T=1, 2. The term p is used herein, t=1, 2..p., meanwhile, a plurality of acquisition points are arranged at the top of the energy storage power supply, further, the height of each acquisition point corresponding to each monitoring time point is obtained from the image of the energy storage power supply corresponding to each monitoring time point and is marked as H jt Wherein j represents the number corresponding to each acquisition point, j=1, 2..m;
by calculation formula
Obtaining appearance evaluation coefficients corresponding to the energy storage power supplyWherein C is i ' represents the initial dimension corresponding to each gap, H represents the initial installation height of the energy storage power supply, epsilon 1 、ε 2 Respectively set weight factors corresponding to the gap size and the height of the acquisition point.
Preferably, the analyzing the coincidence coefficient of the energy storage power supply corresponding to the internal environment includes the following specific analysis process:
substituting the dust concentration and humidity of the energy storage power supply in the corresponding interior of each monitoring time point into a calculation formulaObtaining a coincidence coefficient alpha of the energy storage power supply corresponding to the internal environment, wherein HC t 、W t Respectively showing the dust concentration and humidity of the energy storage power supply in the drink at the t-th monitoring time point, wherein HC and W are respectively the set allowable dust concentration and allowable humidity of the energy storage power supply, and eta 1 、η 2 And the weight factors are respectively corresponding to the set dust concentration and humidity, lambda is the weight factor corresponding to the set internal environment coincidence coefficient, t represents the number corresponding to each monitoring time point, and t=1, 2.
Preferably, the analyzing the operation state evaluation coefficient corresponding to the energy storage power supply specifically includes the following steps:
substituting the battery voltage and the battery current corresponding to the energy storage power supply at each monitoring time point into a calculation formulaObtaining an operation state evaluation coefficient beta corresponding to the energy storage power supply, wherein U is as follows t 、I t Respectively representing the battery voltage and the battery current corresponding to the t monitoring time point of the energy storage power supply, U t-1 、I t-1 Respectively representThe energy storage power supply is characterized in that the battery voltage and the battery current corresponding to the t-1 monitoring time point are respectively set allowable battery voltage difference and allowable battery current difference, mu 1 and mu 2 are respectively set weight factors corresponding to the battery voltage and the battery current, t represents the corresponding number of each monitoring time point, and t=1 and 2>And evaluating compensation factors corresponding to the coefficients for the set running states.
Preferably, the analyzing the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply specifically includes the following steps: appearance evaluation coefficients corresponding to the energy storage power supplySubstitution of the coincidence coefficient alpha and the running state evaluation coefficient beta of the internal environment into the calculation formula +.>Obtaining a comprehensive safety state evaluation coefficient corresponding to the energy storage power supply>Wherein τ1, τ2, τ3 are respectively set appearance evaluation coefficients, coincidence coefficients of internal environments, and weighting factors corresponding to the running state evaluation coefficients, and e represents a natural constant.
Preferably, the determining whether the state corresponding to the energy storage power supply is in a safe state or not includes the following specific determining process: comparing the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply with a set comprehensive safety state evaluation coefficient threshold value, if the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply is greater than or equal to the set comprehensive safety state evaluation coefficient threshold value, judging that the state corresponding to the energy storage power supply is in a safety state, otherwise, judging that the state corresponding to the energy storage power supply is in a dangerous state.
Preferably, the analyzing the replacement energy storage power supply corresponding to the energy storage power supply specifically includes the following steps: acquiring a position corresponding to the energy storage power supply, further acquiring an application area corresponding to the energy storage power supply, acquiring each energy storage power supply corresponding to the application area of the energy storage power supply, calculating according to a calculation mode of a comprehensive safety state evaluation coefficient corresponding to the energy storage power supply to obtain a comprehensive safety state evaluation coefficient corresponding to each alternative energy storage power supply, and further screening each alternative energy storage power supply in a safety state to serve as each target alternative energy storage power supply;
extracting comprehensive safety state evaluation coefficients corresponding to each target replacement energy storage power supply and recording the comprehensive safety state evaluation coefficients asAnd extracting the corresponding positions of the target replacement energy storage power supplies, thereby obtaining the distance between the energy storage power supplies and the target replacement energy storage power supplies according to the corresponding positions of the energy storage power supplies and the target replacement energy storage power supplies, and recording as L g Wherein g represents the number corresponding to each target replacement energy storage power supply, g=1, 2.
According to the calculation formulaObtaining a replacement priority evaluation coefficient psi corresponding to each target replacement energy storage power supply g Wherein x represents the corresponding number of target alternate energy storage power sources,respectively setting a distance between the energy storage power supply and the target replacement energy storage power supply and a weight factor corresponding to the target replacement energy storage power supply replacement priority evaluation coefficient;
and sorting the replacement priority evaluation coefficients corresponding to the target replacement energy storage power supplies according to a descending order, and taking the target replacement energy storage power supply with the first sorted correspondence as the replacement energy storage power supply.
The invention has the beneficial effects that: 1. according to the distributed power supply device monitoring system for the wind power plant, provided by the invention, the meteorological information of the energy storage power supply area near the wind power plant is monitored, after the meteorological abnormality occurs, the monitoring time point is set, the appearance, the internal environment and the operation of the energy storage power supply at each monitoring point are further monitored, and when the energy storage power supply is in an abnormal state, the corresponding alternative energy storage power supply of the energy storage power supply is analyzed, and meanwhile, early warning is carried out, so that the timeliness of the maintenance of the energy storage power supply is ensured, the stability of wind power generation and power grid power supply is also ensured, the defect of manual periodic inspection in the prior art is overcome, the intelligent monitoring of the energy storage power supply is realized, and the safety of the energy storage power supply is ensured.
2. According to the invention, the replacement energy storage power supply corresponding to the energy storage power supply is analyzed in the replacement power supply analysis module, so that the stability of wind power generation and power supply of the power grid is ensured, the smoothness of power consumption of a user is also ensured, the loss of electric energy is reduced to a certain extent, the running efficiency of the power grid is ensured, sufficient maintenance time is provided for maintenance personnel, and the maintenance effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the system structure of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a distributed power device monitoring system for a wind farm includes: the system comprises a power monitoring time setting module, a power information acquisition module, a power appearance analysis module, a power environment analysis module, a power operation analysis module, a power comprehensive state analysis module, a replacement power analysis module, an early warning terminal and a display terminal.
The power information acquisition module is respectively connected with the power monitoring time setting module, the power appearance analysis module, the power environment analysis module and the power operation analysis module, the power comprehensive state analysis module is respectively connected with the power appearance analysis module, the power environment analysis module, the power operation analysis module, the replacement power analysis module and the early warning terminal, and the replacement power analysis module is also connected with the display terminal.
The power supply monitoring time setting module is used for acquiring weather information of the installation area corresponding to the energy storage power supply in each day in a set period, and further setting each monitoring time point corresponding to the energy storage power supply, wherein the weather information comprises temperature and wind speed;
in a specific embodiment, each monitoring time point is set, and the specific setting process is as follows: acquiring a temperature interval and a wind speed interval of a power supply corresponding to a safety area in a set period from a weather center, and taking the maximum temperature in the temperature interval and the maximum wind speed in the wind speed interval of each day as the temperature and the wind speed of each day;
comparing the temperature and the wind speed corresponding to each day with a preset standard temperature interval and a preset wind speed threshold value respectively, and if the temperature corresponding to a certain day is greater than or equal to the upper limit value of the standard temperature interval or less than or equal to the lower limit value of the standard temperature interval and the wind speed of the certain day is less than the wind speed threshold value, acquiring a time point corresponding to the temperature of the certain day and taking the time point as a monitoring initial time point;
if the wind speed corresponding to a certain day is greater than or equal to a wind speed threshold value and the temperature of the certain day is in a standard temperature interval, acquiring a time point corresponding to the wind speed of the certain day, and taking the time point as a monitoring initial time point;
if the wind speed corresponding to a certain day is greater than or equal to a wind speed threshold value, and the temperature of the certain day is greater than or equal to a standard temperature interval upper limit value or less than or equal to a standard temperature interval lower limit value, acquiring a time point corresponding to the temperature of the certain day and a time point corresponding to the wind speed of the certain day, comparing the time point corresponding to the temperature of the certain day with the time point corresponding to the wind speed, and selecting a minimum time point as a monitoring initial time point;
taking the monitoring initial time point as a starting time point, and distributing each monitoring time point according to a preset time interval, thereby obtaining each monitoring time point.
The power supply information acquisition module is used for acquiring images, internal environment information and operation information corresponding to the energy storage power supply at each monitoring time point;
in the above, the environmental information of the energy storage power supply corresponding to the inside of each monitoring time point includes dust concentration and humidity; the operation information corresponding to each monitoring time point of the energy storage power supply comprises battery voltage and battery current.
In a specific embodiment, the image, the internal environment information and the operation information corresponding to each monitoring time point of the energy storage power supply are collected, and the specific collection process is as follows: the method comprises the steps that images corresponding to all monitoring time points of an energy storage power supply are collected through a camera carried by an unmanned aerial vehicle, a dust sensor and a humidity sensor are installed in the energy storage power supply, dust inside the energy storage power supply is broken and the humidity is collected through the dust sensor and the humidity sensor respectively, a voltage sensor and a current sensor are arranged at a battery wiring position of the energy storage power supply, and then battery voltage and battery current corresponding to all monitoring time points of the energy storage power supply are collected through the voltage sensor and the current sensor respectively.
The power supply appearance analysis module is used for analyzing appearance evaluation coefficients corresponding to the energy storage power supply according to images corresponding to the energy storage power supply at each monitoring time point, and recording the appearance evaluation coefficients as
In a specific embodiment, the appearance evaluation coefficient corresponding to the energy storage power supply is analyzed, and the specific analysis process is as follows: acquiring the corresponding size of each gap in the energy storage power supply at each monitoring time point from the corresponding image of the energy storage power supply at each monitoring time point, and marking as C it Wherein i represents the number corresponding to each slit, i=1, 2. Once again, n is, t represents the number corresponding to each monitoring time point, t=1,2. Once again, p, meanwhile, a plurality of acquisition points are arranged at the top of the energy storage power supply, further, the height of each acquisition point corresponding to each monitoring time point is obtained from the image of the energy storage power supply corresponding to each monitoring time point and is marked as H jt Wherein j represents the number corresponding to each acquisition point, j=1, 2..m;
by calculation formula
Obtaining appearance evaluation coefficients corresponding to the energy storage power supplyWherein C is i ' represents the initial dimension corresponding to each gap, H represents the initial installation height of the energy storage power supply, epsilon 1 、ε 2 Respectively set weight factors corresponding to the gap size and the height of the acquisition point.
It should be noted that, the initial image after the installation of the energy storage power supply is correspondingly completed is extracted from the power management center, and then the initial size and the initial installation height of the energy storage power supply corresponding to each gap of the energy storage power supply are obtained from the initial image after the installation of the energy storage power supply is correspondingly completed.
The power supply environment analysis module is used for analyzing the coincidence coefficient of the internal environment corresponding to the energy storage power supply according to the environment information of the internal environment corresponding to each monitoring time point of the energy storage power supply, and marking the coincidence coefficient as alpha;
in a specific embodiment, the coincidence coefficient of the energy storage power supply corresponding to the internal environment is analyzed, and the specific analysis process is as follows: substituting the dust concentration and humidity of the energy storage power supply in the corresponding interior of each monitoring time point into a calculation formulaObtaining a coincidence coefficient alpha of the energy storage power supply corresponding to the internal environment, wherein HC t 、W t Respectively showing the dust concentration and humidity of the energy storage power supply in the drink at the t-th monitoring time point, wherein HC and W are respectively the set allowable dust concentration and allowable humidity of the energy storage power supply, and eta 1 、η 2 Respectively the set dust concentrationAnd the weight factor corresponding to the humidity, lambda is the weight factor corresponding to the set internal environment coincidence coefficient, t represents the number corresponding to each monitoring time point, and t=1, 2.
The power supply operation analysis module is used for analyzing an operation state evaluation coefficient corresponding to the energy storage power supply according to the operation information corresponding to the energy storage power supply at each monitoring time point, and marking the operation state evaluation coefficient as beta;
in a specific embodiment, the operation state evaluation coefficient corresponding to the energy storage power supply is analyzed, and the specific analysis process is as follows: substituting the battery voltage and the battery current corresponding to the energy storage power supply at each monitoring time point into a calculation formulaObtaining an operation state evaluation coefficient beta corresponding to the energy storage power supply, wherein U is as follows t 、I t Respectively representing the battery voltage and the battery current corresponding to the t monitoring time point of the energy storage power supply, U t-1 、I t-1 The battery voltage and the battery current corresponding to the energy storage power supply at the t-1 monitoring time point are respectively indicated, deltaU and DeltaI are respectively set allowable battery voltage difference and allowable battery current difference, mu 1 and mu 2 are respectively set battery voltage and weight factors corresponding to the battery current, t is the number corresponding to each monitoring time point, and t=1 and 2>And evaluating compensation factors corresponding to the coefficients for the set running states.
The power supply comprehensive state analysis module is used for analyzing the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply according to the appearance evaluation coefficient corresponding to the energy storage power supply, the coincidence coefficient of the internal environment and the running state evaluation coefficient, and judging whether the state corresponding to the energy storage power supply is in a safety state or not;
in a specific embodiment, the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply is analyzed, and the specific analysis process is as follows: appearance evaluation coefficients corresponding to the energy storage power supplySubstitution of the coincidence coefficient alpha and the running state evaluation coefficient beta of the internal environment into the calculation formula +.>Obtaining a comprehensive safety state evaluation coefficient corresponding to the energy storage power supply>Wherein τ1, τ2, τ3 are respectively set appearance evaluation coefficients, coincidence coefficients of internal environments, and weighting factors corresponding to the running state evaluation coefficients, and e represents a natural constant.
In another specific embodiment, it is determined whether the state corresponding to the energy storage power supply is in a safe state, and the specific determination process is as follows: comparing the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply with a set comprehensive safety state evaluation coefficient threshold value, if the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply is greater than or equal to the set comprehensive safety state evaluation coefficient threshold value, judging that the state corresponding to the energy storage power supply is in a safety state, otherwise, judging that the state corresponding to the energy storage power supply is in a dangerous state.
The replacement power supply analysis module is used for analyzing the replacement energy storage power supply corresponding to the energy storage power supply when the state corresponding to the energy storage power supply is in a dangerous state and sending the analysis result to the display terminal;
in a specific embodiment, the replacement energy storage power supply corresponding to the energy storage power supply is analyzed, and a specific analysis process is as follows:
acquiring a position corresponding to the energy storage power supply, further acquiring an application area corresponding to the energy storage power supply, acquiring each energy storage power supply corresponding to the application area of the energy storage power supply, calculating according to a calculation mode of a comprehensive safety state evaluation coefficient corresponding to the energy storage power supply to obtain a comprehensive safety state evaluation coefficient corresponding to each alternative energy storage power supply, and further screening each alternative energy storage power supply in a safety state to serve as each target alternative energy storage power supply;
it should be noted that a GPS positioning system is installed in the energy storage power supply, and the position corresponding to the energy storage power supply is obtained through the GPS positioning system in the energy storage power supply, so that the position corresponding to each energy storage power supply in each application area is obtained from the power management center, and the application area corresponding to the energy storage power supply and each energy storage power supply corresponding to the application area of the energy storage power supply are obtained.
Extracting comprehensive safety state evaluation coefficients corresponding to each target replacement energy storage power supply and recording the comprehensive safety state evaluation coefficients asAnd extracting the corresponding positions of the target replacement energy storage power supplies, thereby obtaining the distance between the energy storage power supplies and the target replacement energy storage power supplies according to the corresponding positions of the energy storage power supplies and the target replacement energy storage power supplies, and recording as L g Wherein g represents the number corresponding to each target replacement energy storage power supply, g=1, 2.
It should be noted that, all the energy storage power supplies are provided with a GPS positioning system, so that the corresponding positions of the target replacement energy storage power supplies can be obtained.
According to the calculation formulaObtaining a replacement priority evaluation coefficient psi corresponding to each target replacement energy storage power supply g Wherein x represents the corresponding number of the target replacement energy storage power supplies, < >>Respectively setting a distance between the energy storage power supply and the target replacement energy storage power supply and a weight factor corresponding to the target replacement energy storage power supply replacement priority evaluation coefficient;
and sorting the replacement priority evaluation coefficients corresponding to the target replacement energy storage power supplies according to a descending order, and taking the target replacement energy storage power supply with the first sorted correspondence as the replacement energy storage power supply.
According to the invention, the replacement energy storage power supply corresponding to the energy storage power supply is analyzed in the replacement power supply analysis module, so that the stability of wind power generation and power supply of the power grid is ensured, the smoothness of power consumption of a user is also ensured, the loss of electric energy is reduced to a certain extent, the running efficiency of the power grid is ensured, sufficient maintenance time is provided for maintenance personnel, and the maintenance effect is improved.
The early warning terminal is used for carrying out early warning prompt when the state corresponding to the energy storage power supply is in a dangerous state;
and the display terminal is used for displaying the replacement energy storage power supply corresponding to the energy storage power supply.
According to the embodiment of the invention, the meteorological information of the energy storage power supply area near the wind power plant is monitored, after the meteorological is abnormal, the monitoring time point is set, the appearance, the internal environment and the operation of the energy storage power supply at each monitoring point are further monitored, when the energy storage power supply is in an abnormal state, the corresponding alternative energy storage power supply of the energy storage power supply is analyzed, and meanwhile, the early warning is carried out, so that the timeliness of the maintenance of the energy storage power supply is ensured, the stability of wind power generation and power supply of a power grid is also ensured, the defect of manual periodic inspection in the prior art is overcome, the intelligent monitoring of the energy storage power supply is realized, and the safety of the energy storage power supply is ensured.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. A distributed power device monitoring system for a wind farm, comprising:
the power supply monitoring time setting module is used for acquiring weather information of the installation area corresponding to the energy storage power supply in each day in a set period, and further setting each monitoring time point corresponding to the energy storage power supply, wherein the weather information comprises temperature and wind speed;
the power supply information acquisition module is used for acquiring images, internal environment information and operation information corresponding to the energy storage power supply at each monitoring time point;
the power supply appearance analysis module is used for evaluating the appearance corresponding to the energy storage power supply according to the images corresponding to the energy storage power supply at each monitoring time pointThe estimated coefficients are analyzed and recorded as
The power supply environment analysis module is used for analyzing the coincidence coefficient of the internal environment corresponding to the energy storage power supply according to the environment information of the internal environment corresponding to each monitoring time point of the energy storage power supply, and marking the coincidence coefficient as alpha;
the power supply operation analysis module is used for analyzing an operation state evaluation coefficient corresponding to the energy storage power supply according to the operation information corresponding to the energy storage power supply at each monitoring time point, and marking the operation state evaluation coefficient as beta;
the power supply comprehensive state analysis module is used for analyzing the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply according to the appearance evaluation coefficient corresponding to the energy storage power supply, the coincidence coefficient of the internal environment and the running state evaluation coefficient, and judging whether the state corresponding to the energy storage power supply is in a safety state or not;
the replacement power supply analysis module is used for analyzing the replacement energy storage power supply corresponding to the energy storage power supply when the state corresponding to the energy storage power supply is in a dangerous state and sending the analysis result to the display terminal;
the early warning terminal is used for carrying out early warning prompt when the state corresponding to the energy storage power supply is in a dangerous state;
and the display terminal is used for displaying the replacement energy storage power supply corresponding to the energy storage power supply.
2. A distributed power plant monitoring system for a wind farm according to claim 1, wherein each monitoring time point is set up by the following steps:
acquiring a temperature interval and a wind speed interval of a power supply corresponding to a safety area in a set period from a weather center, and taking the maximum temperature in the temperature interval and the maximum wind speed in the wind speed interval of each day as the temperature and the wind speed of each day;
comparing the temperature and the wind speed corresponding to each day with a preset standard temperature interval and a preset wind speed threshold value respectively, and if the temperature corresponding to a certain day is greater than or equal to the upper limit value of the standard temperature interval or less than or equal to the lower limit value of the standard temperature interval and the wind speed of the certain day is less than the wind speed threshold value, acquiring a time point corresponding to the temperature of the certain day and taking the time point as a monitoring initial time point;
if the wind speed corresponding to a certain day is greater than or equal to a wind speed threshold value and the temperature of the certain day is in a standard temperature interval, acquiring a time point corresponding to the wind speed of the certain day, and taking the time point as a monitoring initial time point;
if the wind speed corresponding to a certain day is greater than or equal to a wind speed threshold value, and the temperature of the certain day is greater than or equal to a standard temperature interval upper limit value or less than or equal to a standard temperature interval lower limit value, acquiring a time point corresponding to the temperature of the certain day and a time point corresponding to the wind speed of the certain day, comparing the time point corresponding to the temperature of the certain day with the time point corresponding to the wind speed, and selecting a minimum time point as a monitoring initial time point;
taking the monitoring initial time point as a starting time point, and distributing each monitoring time point according to a preset time interval, thereby obtaining each monitoring time point.
3. A distributed power plant monitoring system for a wind farm according to claim 1, wherein the environmental information within the energy storage power supply at each monitoring point in time includes dust concentration and humidity;
the operation information corresponding to each monitoring time point of the energy storage power supply comprises battery voltage and battery current.
4. The distributed power device monitoring system for a wind farm according to claim 1, wherein the analysis of the appearance evaluation coefficients corresponding to the stored energy power source is performed by the following specific analysis process:
acquiring the corresponding size of each gap in the energy storage power supply at each monitoring time point from the corresponding image of the energy storage power supply at each monitoring time point, and marking as C it T represents each monitoring time the number corresponding to the point is the number, t represents the number corresponding to each monitoring time point, t=1, 2..p., simultaneously, a plurality of acquisition points are arranged at the top of the energy storage power supply, and then the energy storage power supply is arranged in the image corresponding to each monitoring time pointThe corresponding height of each acquisition point at each monitoring time point is obtained and is marked as H jt Wherein j represents the number corresponding to each acquisition point, j=1, 2..m;
by calculation formula
Obtaining appearance evaluation coefficients corresponding to the energy storage power supplyWherein C' i The initial dimensions corresponding to the gaps are shown, H represents the initial installation height of the energy storage power supply, epsilon 1 、ε 2 Respectively set weight factors corresponding to the gap size and the height of the acquisition point.
5. A distributed power unit monitoring system for a wind farm according to claim 3, wherein the analysis of the coincidence coefficients of the stored energy power source to the internal environment is performed as follows:
substituting the dust concentration and humidity of the energy storage power supply in the corresponding interior of each monitoring time point into a calculation formulaObtaining a coincidence coefficient alpha of the energy storage power supply corresponding to the internal environment, wherein HC t 、W t Respectively showing the dust concentration and humidity of the energy storage power supply in the drink at the t-th monitoring time point, wherein HC and W are respectively the set allowable dust concentration and allowable humidity of the energy storage power supply, and eta 1 、η 2 And the weight factors are respectively corresponding to the set dust concentration and humidity, lambda is the weight factor corresponding to the set internal environment coincidence coefficient, t represents the number corresponding to each monitoring time point, and t=1, 2.
6. A distributed power plant monitoring system for a wind farm according to claim 3, wherein the analysis of the operational state assessment coefficients corresponding to the stored energy power source is performed as follows:
substituting the battery voltage and the battery current corresponding to the energy storage power supply at each monitoring time point into a calculation formulaObtaining an operation state evaluation coefficient beta corresponding to the energy storage power supply, wherein U is as follows t 、I t Respectively representing the battery voltage and the battery current corresponding to the t monitoring time point of the energy storage power supply, U t-1 、I t-1 The battery voltage and the battery current corresponding to the energy storage power supply at the t-1 monitoring time point are respectively indicated, deltaU and DeltaI are respectively set allowable battery voltage difference and allowable battery current difference, mu 1 and mu 2 are respectively set battery voltage and weight factors corresponding to the battery current, t is the number corresponding to each monitoring time point, and t=1 and 2>And evaluating compensation factors corresponding to the coefficients for the set running states.
7. The distributed power device monitoring system for a wind farm according to claim 1, wherein the analysis of the comprehensive safety state evaluation coefficient corresponding to the energy storage power source is as follows: appearance evaluation coefficients corresponding to the energy storage power supplySubstituting the coincidence coefficient alpha and the running state evaluation coefficient beta of the internal environment into a calculation formulaObtaining a comprehensive safety state evaluation coefficient corresponding to the energy storage power supply>Wherein τ1, τ2, τ3 are the set appearance evaluation coefficients, the internal environment compliance coefficients, and the operation state evaluation system, respectivelyThe number corresponds to a weight factor, e representing a natural constant.
8. The distributed power device monitoring system for a wind farm according to claim 7, wherein the determining whether the state corresponding to the stored energy power source is in a safe state comprises the following specific determining process: comparing the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply with a set comprehensive safety state evaluation coefficient threshold value, if the comprehensive safety state evaluation coefficient corresponding to the energy storage power supply is greater than or equal to the set comprehensive safety state evaluation coefficient threshold value, judging that the state corresponding to the energy storage power supply is in a safety state, otherwise, judging that the state corresponding to the energy storage power supply is in a dangerous state.
9. The distributed power device monitoring system for a wind farm according to claim 8, wherein the analyzing the alternative energy storage power source corresponding to the energy storage power source comprises the following specific analysis process:
acquiring a position corresponding to the energy storage power supply, further acquiring an application area corresponding to the energy storage power supply, acquiring each energy storage power supply corresponding to the application area of the energy storage power supply, calculating according to a calculation mode of a comprehensive safety state evaluation coefficient corresponding to the energy storage power supply to obtain a comprehensive safety state evaluation coefficient corresponding to each alternative energy storage power supply, and further screening each alternative energy storage power supply in a safety state to serve as each target alternative energy storage power supply;
extracting comprehensive safety state evaluation coefficients corresponding to each target replacement energy storage power supply and recording the comprehensive safety state evaluation coefficients asAnd extracting the corresponding positions of the target replacement energy storage power supplies, thereby obtaining the distance between the energy storage power supplies and the target replacement energy storage power supplies according to the corresponding positions of the energy storage power supplies and the target replacement energy storage power supplies, and recording as L g Wherein g represents the number corresponding to each target replacement energy storage power supply, g=1, 2.
According to the calculation formulaObtaining a replacement priority evaluation coefficient psi corresponding to each target replacement energy storage power supply g Wherein x represents the corresponding number of target alternate energy storage power sources,respectively setting a distance between the energy storage power supply and the target replacement energy storage power supply and a weight factor corresponding to the target replacement energy storage power supply replacement priority evaluation coefficient;
and sorting the replacement priority evaluation coefficients corresponding to the target replacement energy storage power supplies according to a descending order, and taking the target replacement energy storage power supply with the first sorted correspondence as the replacement energy storage power supply.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117081122A (en) * | 2023-10-16 | 2023-11-17 | 天津市普迅电力信息技术有限公司 | Running state analysis system based on distributed energy storage device |
| CN117674111A (en) * | 2023-12-05 | 2024-03-08 | 众华电子科技(太仓)有限公司 | Intelligent operation safety assessment system suitable for base station power supply |
| CN117691705A (en) * | 2023-12-08 | 2024-03-12 | 江苏海德森能源有限公司 | Energy storage safety early warning system of smart power grid |
| CN117889786A (en) * | 2024-01-16 | 2024-04-16 | 国家电投集团山东海洋能源发展有限公司 | A vision-based automatic inspection method and system for wind farms |
| CN119209852A (en) * | 2024-11-27 | 2024-12-27 | 南京信息工程大学 | Supercapacitor energy storage management method, system and medium based on meteorological data |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117081122A (en) * | 2023-10-16 | 2023-11-17 | 天津市普迅电力信息技术有限公司 | Running state analysis system based on distributed energy storage device |
| CN117081122B (en) * | 2023-10-16 | 2023-12-19 | 天津市普迅电力信息技术有限公司 | Running state analysis system based on distributed energy storage device |
| CN117674111A (en) * | 2023-12-05 | 2024-03-08 | 众华电子科技(太仓)有限公司 | Intelligent operation safety assessment system suitable for base station power supply |
| CN117691705A (en) * | 2023-12-08 | 2024-03-12 | 江苏海德森能源有限公司 | Energy storage safety early warning system of smart power grid |
| CN117889786A (en) * | 2024-01-16 | 2024-04-16 | 国家电投集团山东海洋能源发展有限公司 | A vision-based automatic inspection method and system for wind farms |
| CN117889786B (en) * | 2024-01-16 | 2024-09-13 | 国家电投集团山东海洋能源发展有限公司 | Vision-based automatic inspection method and system for wind power station |
| CN119209852A (en) * | 2024-11-27 | 2024-12-27 | 南京信息工程大学 | Supercapacitor energy storage management method, system and medium based on meteorological data |
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