CN117331374B - Ship electric propulsion operation monitoring control system - Google Patents
Ship electric propulsion operation monitoring control system Download PDFInfo
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- CN117331374B CN117331374B CN202311429212.7A CN202311429212A CN117331374B CN 117331374 B CN117331374 B CN 117331374B CN 202311429212 A CN202311429212 A CN 202311429212A CN 117331374 B CN117331374 B CN 117331374B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 239000000446 fuel Substances 0.000 claims description 241
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 121
- 230000002159 abnormal effect Effects 0.000 claims description 82
- 238000000034 method Methods 0.000 claims description 27
- 238000005265 energy consumption Methods 0.000 claims description 25
- 230000005856 abnormality Effects 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0267—Fault communication, e.g. human machine interface [HMI]
- G05B23/027—Alarm generation, e.g. communication protocol; Forms of alarm
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Abstract
The invention belongs to the technical field of ship electric propulsion operation control, and particularly discloses a ship electric propulsion operation monitoring control system.
Description
Technical Field
The invention belongs to the technical field of ship electric propulsion operation control, and particularly relates to a ship electric propulsion operation monitoring control system.
Background
The electric propulsion system is an important power system of a modern ship, the performance of the electric propulsion system directly influences the operation safety and environmental protection capability of the ship, and because the ship sails depending on fuel consumption, when the fuel consumption is abnormal, on one hand, insufficient fuel standby can be caused, the power source is easily lost in the middle of sailing, and potential safety hazards are caused, on the other hand, the fuel consumption inevitably produces waste emission in the process of fuel consumption, and further water environment pollution is caused, and when the fuel consumption is abnormal, the water environment pollution is necessarily aggravated, so that the fuel consumption state of the electric propulsion system is necessarily monitored in the sailing process of the ship, and whether the fuel consumption is abnormal or not is timely identified, so that corresponding measures are taken to carry out sailing control.
It is known that the primary implementation condition for identifying whether the fuel consumption is abnormal is to acquire the actual fuel consumption and the planned fuel consumption, and the planned fuel consumption is usually acquired by means of the fuel reserve and the current sailing distance, however, in the prior art, the determination of the fuel reserve is determined from the whole course by the ship operator by experience, and although this way is more convenient, too general and not careful, for some courses far away, a plurality of water areas are generally involved, sea surface conditions and climate conditions of different water areas are more or less different, so that sailing resistances of different water areas are different, and the generated fuel consumption is different, but the prior art cannot particularly highlight the influence of the sailing resistances on the fuel reserve due to lack of segmentation processing of the courses, so that the determination accuracy of the fuel reserve is reduced to a certain extent, the occurrence probability of insufficient fuel reserve is increased, and the acquisition of the planned fuel consumption is not facilitated.
In addition, in the prior art, when abnormal fuel consumption is identified, a low-energy consumption mode is directly started to serve as a treatment measure, analysis on reasons of abnormal fuel consumption is lacking, the treatment measure is too solidified and is not specific, excessive pursuing of low energy consumption is easy to occur, navigation efficiency is reduced, and normal navigation requirements of ships are difficult to meet.
Disclosure of Invention
In view of this, in order to solve the problems set forth in the background art, a ship electric propulsion operation monitoring control system is now proposed.
The aim of the invention can be achieved by the following technical scheme: a marine vessel electric propulsion operation monitoring control system, comprising: the ship voyage information determining module is used for determining current voyage information of the ship before voyage of the ship, and specifically comprises voyage route, voyage distance, voyage speed and ship load.
And the route segment dividing module is used for determining the water area through which the current route passes according to the route, so that the route is divided into a plurality of route segments, and each route segment corresponds to one water area.
The system comprises an air line segment water condition information acquisition module, a water condition information acquisition module and a water condition information acquisition module, wherein the air line segment water condition information acquisition module is used for acquiring water condition information of each air line segment.
And the reference information base is used for storing the normal water flow rate of each water area in each season and storing the fuel usage amount of the unit ship load corresponding to the unit range distance at each sailing speed.
And the range fuel reserve prediction storage module is used for acquiring the energy consumption performance parameters of the electric propulsion system, predicting the fuel reserve of the current range by combining the current range information of the ship and the water condition information of each range section, and further storing the fuel according to the predicted fuel reserve.
The navigation process fuel actual consumption acquisition module is used for setting a plurality of navigation points in the navigation route so as to acquire the fuel actual consumption of the ship to navigate to each navigation point.
And the sailing process fuel plan consumption statistics module is used for counting the fuel plan consumption of the ship sailing to each sailing point in the sailing process of the ship.
And the navigation process fuel consumption abnormality judging module is used for comparing the actual fuel consumption of the ship navigation to each navigation point with the planned fuel consumption, judging whether the fuel consumption is abnormal or not, and if the fuel consumption of the ship navigation to a certain navigation point is abnormal, marking the navigation point as an abnormal navigation point.
And the fuel consumption abnormality analysis module is used for monitoring the operation of the electric propulsion system when the ship sails to an abnormal sailing point, so as to analyze the cause of the abnormal fuel consumption.
And the ship navigation state regulation and control module is used for regulating and controlling the ship navigation state based on the abnormal fuel consumption reason.
In an alternative embodiment, the water condition information includes a normal water flow rate and a representative wind speed, wherein the water flow rate is obtained as follows: and acquiring seasons corresponding to the current voyage, and simultaneously screening out normal water flow rates corresponding to each route section from normal water flow rates of each water area stored in the reference information base in each season by combining water area names corresponding to each route section.
The representative wind speed is obtained as follows: and acquiring the voyage period of the current voyage based on the voyage distance and voyage speed of the current voyage, and combining the current date to form the voyage period of the current voyage.
And acquiring the wind speed of each route section in each day in the navigation period corresponding to the current route from the meteorological center based on the water area corresponding to each route section, and taking the maximum wind speed as the representative wind speed corresponding to each route section.
In an alternative embodiment, the energy consumption performance parameters include fuel utilization efficiency and engine rated output power.
In an alternative embodiment, the specific implementation process of predicting the fuel reserve of the current voyage is as follows: and obtaining the sailing distance of each sailing line segment, extracting the sailing speed and the ship load from the current sailing information, and carrying out matching calculation on the sailing speed and the ship load and the fuel usage amount of the unit ship load stored in the reference information base corresponding to the unit sailing distance under each sailing speed to obtain the basic fuel usage amount corresponding to each sailing line segment.
Importing the water condition information corresponding to each route section into a calculation typeCalculating the navigation resistance coefficient epsilon corresponding to each route section i Wherein i is represented by a route segment number, i=1, 2, … …, n, a, b respectively representIs a preset duty factor corresponding to the flow resistance coefficient and the wind resistance coefficient, u Water and its preparation method i、u Wind power i is respectively expressed as a flow resistance coefficient and a wind resistance coefficient corresponding to the ith route section, and +.> Wherein V is Water and its preparation method i、V Wind power i is respectively expressed as normal water flow velocity and representative wind speed corresponding to the ith route section, V Water and its preparation method ′、V Wind power ' is expressed as a preset reference water flow rate, a reference wind speed, respectively.
The navigation resistance coefficient corresponding to each route section is combined with the basic fuel consumption to calculate the predicted fuel consumption corresponding to each route section, and the statistical formula is Q i ＝q i Basis (1+ε) i ) Q in i The base is expressed as the base fuel usage corresponding to the ith route segment.
Using a prediction model to predict the fuel usage amount corresponding to each route section and the energy consumption performance parameter of the electric propulsion systemPredicting the fuel reserve W of the current voyage, wherein lambda in the model is expressed as the fuel utilization efficiency of the electric propulsion system, and p is expressed as the rated output power of an engine of the electric propulsion system, and p 0 Expressed as set reference engine output, w Remainder of the process Represented as a pre-configured safety margin.
In an alternative embodiment, the specific implementation manner of setting a plurality of navigation points in the navigation route is as follows: extracting the navigation distance from the current navigation information, and further uniformly dividing the navigation distance according to the set interval distance on the navigation route to obtain a plurality of navigation points.
In an alternative implementation mode, the specific acquisition mode of the actual fuel consumption of the ship sailing to each sailing point is that the fuel surplus is acquired when the ship sails to each sailing point, and the fuel reserve of the current sailing course is subtracted from the fuel surplus of each sailing point to obtain the actual fuel consumption of the ship sailing to each sailing point.
In an alternative embodiment, the counting fuel plan consumption of the ship sailing to each sailing point comprises the steps of: extracting a navigation route from the current navigation route information, acquiring a navigation starting point from the navigation route, and further determining a route section passed by each navigation point and the passing distance of the passed route section from the navigation starting point.
Using statistical formulasObtaining the planned fuel consumption G of the ship sailing to each sailing point j Wherein j is represented as the number of the navigation point, j=1, 2, … …, m, Q jk The estimated fuel usage amount corresponding to the kth route segment passed by the jth voyage point, k being the route segment number passed by each voyage point, k=1, 2 jk Expressed as the passing distance of the jth navigation point through the kth navigation line segment, L k Denoted as the voyage distance of the kth leg.
In an alternative embodiment, the determination of whether there is an abnormality in fuel consumption is as follows: comparing the actual fuel consumption of the ship sailing to each sailing point with the planned fuel consumption, and expressing the actual fuel consumption by the expressionCalculating fuel consumption difference degree of each navigation point +.>Wherein G is j ' is expressed as the actual fuel consumption of the ship sailing to the jth sailing point, and e is expressed as a natural constant.
Comparing the fuel consumption difference degree of each navigation point with the set allowable fuel consumption difference degree progress, and judging that the fuel consumption is abnormal if the fuel consumption difference degree of a certain navigation point is larger than the set allowable fuel consumption difference degree.
In an alternative embodiment, the analysis of the cause of the abnormal fuel consumption is described in the following procedure: (1) And monitoring the operation parameters of all the constituent equipment in the electric propulsion system when the ship sails to the abnormal sailing point.
(2) And acquiring normal operation parameters of all the constituent equipment in the electric propulsion system based on the model of the ship electric propulsion system.
(3) Comparing the operation parameters of all the component devices with the normal operation parameters, if the operation parameters of all the component devices meet the normal operation parameters, analyzing that the fuel consumption abnormality is caused by the abnormal water condition environment, and if the operation parameters of some component devices do not meet the normal operation parameters, executing (4).
(4) The navigation acquisition terminal is arranged on the ship and is used for acquiring water flow and wind speed when the ship navigates to each navigation line segment, and further determining the navigation line segment passed by the abnormal navigation point based on the abnormal navigation point, so that the water flow and wind speed of the navigation line segment passed by the abnormal navigation point are acquired and compared with the normal water flow and the representative wind speed of the corresponding navigation line segment, if the water flow or the wind speed of the navigation line segment passed by the abnormal navigation point is greater than the normal water flow and the representative wind speed of the corresponding navigation line segment, the abnormal fuel consumption cause is analyzed to be internal propulsion failure and the water condition environment is abnormal, and if the water flow and the wind speed of the navigation line segment passed by the abnormal navigation point are smaller than or equal to the normal water flow and the representative wind speed of the corresponding navigation line segment, the abnormal fuel consumption cause is analyzed to be internal propulsion failure.
In an alternative embodiment, the operation mode of regulating the navigation state of the ship based on the abnormal fuel consumption is as follows: if the abnormal fuel consumption is caused by abnormal water condition environment, starting a low-energy consumption mode in the sailing process of the next sailing point.
If the abnormal fuel consumption is caused by internal propulsion failure, the sailing speed is reduced at the moment, and the fault maintenance operation of the electric propulsion system is carried out, so that the original sailing speed is recovered after the electric propulsion system is normally operated.
And if the reasons for abnormal fuel consumption are internal propulsion faults and abnormal water condition environments, performing fault maintenance operation of the electric propulsion system, and starting a low-energy consumption mode.
Compared with the prior art, the invention has the following beneficial effects: (1) According to the invention, the current course is divided into the course segments based on the passing water area, and the water condition information of each course segment is obtained, so that the fuel usage amount of each course segment is predicted, and the accurate determination of the fuel reserve amount is realized by combining the energy consumption performance of the ship electric propulsion system.
(2) According to the invention, the fuel reserve is determined in a range segmentation mode, so that the fuel use amount of each line segment can be intuitively reflected, more convenient data support is provided for acquiring the fuel plan consumption, the acquisition efficiency and the acquisition reliability of the fuel plan consumption are improved to the maximum extent, and the timely and accurate identification of whether the fuel consumption is abnormal or not is facilitated.
(3) According to the invention, analysis of reasons of abnormal fuel consumption is increased when abnormal fuel consumption is identified, and targeted treatment measures are adopted according to the reasons, so that solidification of the treatment measures is avoided, the treatment measures can reach better adaptation with the current navigation state requirements of the ship, the navigation efficiency and the low energy consumption are facilitated to the greatest extent, and the practical value is higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present 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 connection of the modules of the system of the present invention.
FIG. 2 is a schematic illustration of a waypoint passing through a waypoint segment in accordance with 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, the invention provides a ship electric propulsion operation monitoring control system, which comprises a ship voyage information determining module, a voyage section dividing module, a voyage section water condition information obtaining module, a reference information base, a voyage fuel reserve prediction storage module, a voyage process fuel actual consumption obtaining module, a voyage process fuel plan consumption statistics module, a voyage process fuel consumption abnormality judging module, a fuel consumption abnormality analyzing module and a ship voyage state regulating module.
The ship course information determining module is connected with the course dividing module, the course dividing module is connected with the course water condition information obtaining module, the course water condition information obtaining module and the ship course information determining module are both connected with the course fuel reserve prediction storage module, the course fuel reserve prediction storage module is respectively connected with the course fuel actual consumption obtaining module and the course fuel planned consumption statistics module, the course fuel actual consumption obtaining module and the course fuel planned consumption statistics module are both connected with the course fuel consumption anomaly judging module, the course fuel consumption anomaly judging module and the course water condition information obtaining module are both connected with the fuel consumption anomaly analyzing module, the fuel consumption anomaly analyzing module is connected with the ship state regulating module, and the reference information base is respectively connected with the course water condition information obtaining module and the course fuel reserve prediction storage module.
The ship voyage information determining module is used for determining current voyage information of the ship before voyage of the ship, and specifically comprises a voyage route, voyage distance, voyage speed and ship load, wherein the voyage route comprises voyage starting points and voyage ending points.
The route section dividing module is used for determining a water area through which the current route passes according to the navigation route, so that the route is divided into a plurality of route sections, and each route section corresponds to one water area.
The route section water condition information acquisition module is used for acquiring water condition information of each route section, the water condition information comprises normal water flow rate and representative wind speed, and the water flow rate acquisition mode is as follows: and acquiring seasons corresponding to the current voyage, and simultaneously screening out normal water flow rates corresponding to each route section from normal water flow rates of each water area stored in the reference information base in each season by combining water area names corresponding to each route section.
The representative wind speed is obtained as follows: acquiring the voyage period of the current voyage based on the voyage distance and voyage speed of the current voyage,and combining the current date to form a voyage time period of the current voyage, wherein the voyage time period is [ current date, current date+voyage period ]]。
And acquiring the wind speed of each route section in each day in the navigation period corresponding to the current route from the meteorological center of the corresponding water area based on the corresponding water area of each route section, and taking the maximum wind speed as the representative wind speed corresponding to each route section.
The reference information base is used for storing the normal water flow rate of each water area in each season and storing the fuel usage amount of the unit ship load corresponding to the unit voyage distance under each voyage speed.
The range fuel reserve prediction storage module is used for acquiring energy consumption performance parameters of the electric propulsion system, wherein the energy consumption performance parameters comprise fuel utilization efficiency and rated output power of an engine, predicting the fuel reserve of the current range by combining current range information of the ship and water condition information of each range section, and further storing the fuel according to the predicted fuel reserve.
It should be noted that the above-mentioned fuel utilization efficiency is a ratio of a portion that is effectively utilized during use of fuel to an amount of fuel input and consumption, and since the electric power recommendation system cannot make a hundred percent use of fuel during conversion of consumed fuel into electric energy, the more the portion that is effectively utilized, the greater the fuel utilization efficiency.
Based on the scheme, the specific implementation process for predicting the fuel reserve of the current voyage is as follows: and obtaining the sailing distance of each sailing line segment, extracting the sailing speed and the ship load from the current sailing information, and carrying out matching calculation on the sailing speed and the ship load and the fuel usage amount of the unit ship load stored in the reference information base corresponding to the unit sailing distance under each sailing speed to obtain the basic fuel usage amount corresponding to each sailing line segment.
It should be explained that the above-mentioned fuel usage amount is an amount by which fuel is actually utilized.
Importing the water condition information corresponding to each route section into a calculation typeCalculating the navigation resistance coefficient epsilon corresponding to each route section i Wherein i is expressed as a route segment number, i=1, 2, & gt, n, a and b are respectively expressed as preset flow resistance coefficients and corresponding duty factors of wind resistance coefficients, and u Water and its preparation method i、u Wind power i is respectively expressed as a flow resistance coefficient and a wind resistance coefficient corresponding to the ith route section, and +.> Wherein V is Water and its preparation method i、V Wind power i is respectively expressed as normal water flow velocity and representative wind speed corresponding to the ith route section, V Water and its preparation method ′、V Wind power The "reference water flow rate" and "reference wind speed" are respectively indicated as a preset reference water flow rate and a preset reference wind speed, and the larger the normal water flow rate and the larger the wind speed are, the larger the flow resistance coefficient and the wind resistance coefficient are, wherein the reference water flow rate and the reference wind speed are respectively indicated as the water flow rate and the wind speed under the condition that the flow resistance and the wind resistance are not generated, and are preset.
It is added that when the ship sails the same or opposite to the wind direction, the wind will generate additional resistance to the ship, and the wind resistance will increase the energy consumption of the ship, so that the wind direction is not taken into consideration when carrying out wind resistance analysis.
When the ship runs in a water area with a large flow velocity, the hydrodynamic forces act on the ship, called flow resistance. The flow resistance has an influence on the energy consumption of the vessel.
The navigation resistance coefficient corresponding to each route section is combined with the basic fuel consumption to calculate the predicted fuel consumption corresponding to each route section, and the statistical formula is Q i ＝q i Basis (1+ε) i ) Q in i The base is expressed as a base fuel usage corresponding to the ith route segment, where the greater the navigational resistance coefficient, the greater the fuel usage is expected.
Using a prediction model to predict the fuel usage amount corresponding to each route section and the energy consumption performance parameter of the electric propulsion systemPredicting the fuel reserve W of the current voyage, wherein lambda in the model is expressed as the fuel utilization efficiency of the electric propulsion system, and p is expressed as the rated output power of an engine of the electric propulsion system, and p 0 Expressed as set reference engine output, w Remainder of the process Represented as a pre-configured safety margin.
The smaller the fuel utilization efficiency of the electric propulsion system in the above-mentioned prediction model, the larger the fuel reserve of the current range, the larger the rated output power of the engine of the electric propulsion system, and the larger the fuel reserve of the current range, because the larger the output power of the ship engine, the more power is required to be generated by the engine to propel the ship, which generally requires a larger fuel supply to meet the power demand, and the larger the fuel consumption naturally.
According to the invention, the current course is divided into the course segments based on the passing water area, and the water condition information of each course segment is obtained, so that the fuel usage amount of each course segment is predicted, and the accurate determination of the fuel reserve amount is realized by combining the energy consumption performance of the ship electric propulsion system.
The sailing process fuel actual consumption obtaining module is used for setting a plurality of sailing points in the sailing route so as to obtain the fuel actual consumption of the ship sailing to each sailing point.
In the embodiment of the above solution, the specific implementation manner of setting a plurality of navigation points in the navigation route is as follows: extracting the navigation distance from the current navigation information, and further uniformly dividing the navigation distance according to the set interval distance on the navigation route to obtain a plurality of navigation points.
The specific acquisition mode of the actual fuel consumption of the ship sailing to each sailing point comprises the steps of acquiring the fuel residual quantity when the ship sails to each sailing point, and subtracting the fuel residual quantity of the current sailing course from the fuel residual quantity of each sailing point to obtain the actual fuel consumption of the ship sailing to each sailing point.
The sailing process fuel plan consumption statistics module is used for counting the fuel plan consumption of the ship sailing to each sailing point in the sailing process of the ship, and comprises the following steps: extracting a navigation route from the current navigation route information, acquiring a navigation starting point from the navigation route, and further determining a route section passed by each navigation point and the passing distance of the passed route section from the navigation starting point.
The route section through which the above-mentioned middle voyage point passes is shown in fig. 2.
Using statistical formulasObtaining the planned fuel consumption G of the ship sailing to each sailing point j Wherein j is represented as the number of the navigation point, j=1, 2, … …, m, Q jk The estimated fuel usage corresponding to the kth route segment passed by the jth navigation point, k being the route segment number passed by each navigation point, k=1, 2, … …, z, l jk Expressed as the passing distance of the jth navigation point through the kth navigation line segment, L k Denoted as the voyage distance of the kth leg.
According to the invention, the fuel reserve is determined in a range segmentation mode, so that the fuel use amount of each line segment can be intuitively reflected, more convenient data support is provided for acquiring the fuel plan consumption, the acquisition efficiency and the acquisition reliability of the fuel plan consumption are improved to the maximum extent, and the timely and accurate identification of whether the fuel consumption is abnormal or not is facilitated.
The fuel consumption abnormality judging module is used for comparing the actual fuel consumption of the ship sailing to each sailing point with the planned fuel consumption, judging whether the fuel consumption is abnormal or not, and if the fuel consumption of the ship sailing to a certain sailing point is abnormal, marking the sailing point as an abnormal sailing point.
The determination as to whether there is an abnormality in fuel consumption applied to the above embodiment is as follows: comparing the actual fuel consumption of the ship sailing to each sailing point with the planned fuel consumption, and expressing the actual fuel consumption by the expressionCalculating fuel consumption difference degree of each navigation point +.>Wherein G is j ' is expressed as the actual fuel consumption of the ship sailing to the jth sailing point, and e is expressed as a natural constant.
It is to be noted that the normal voyage of the ship is not affected when the actual fuel consumption is smaller than the planned fuel consumption, and only when the actual fuel consumption is larger than the planned fuel consumption, the normal voyage of the ship is affected, and therefore only when it is judged whether or not there is an abnormality in the fuel consumption, only the actual fuel consumption is considered to be larger than the planned fuel consumption.
Comparing the fuel consumption difference degree of each navigation point with the set allowable fuel consumption difference degree progress, and judging that the fuel consumption is abnormal if the fuel consumption difference degree of a certain navigation point is larger than the set allowable fuel consumption difference degree.
The fuel consumption abnormality analysis module is used for monitoring the operation of the electric propulsion system when the ship sails to an abnormal sailing point, so that the cause of the abnormal fuel consumption is analyzed, and the specific analysis process is as follows: (1) And monitoring the operation parameters of all the component equipment in the electric propulsion system when the ship sails to an abnormal sailing point, wherein the operation parameters comprise the operation parameters of an engine, the operation parameters of a motor, the operation parameters of a frequency converter and the like.
In the above example of the solution, the operating parameters of the engine may be a rotation speed, a load, an intake air temperature, an intake air pressure, a fuel injection pressure, etc., where the rotation speed of the engine is related to the power output, an excessively high or low rotation speed may result in energy waste, the load of the engine indicates the load currently born by the engine, the greater the load of the engine is, the higher the energy consumption is, the intake air temperature and the intake air pressure of the engine affect the combustion efficiency, the injection pressure of the fuel in the engine may affect the combustion efficiency, and an excessively high or improper injection pressure may result in incomplete combustion and waste of fuel.
The operating parameters of the motor may be motor load, motor temperature, motor start-stop frequency, where the load of the motor is indicative of the power demand it is subjected to. Too high or too low a load may result in a decrease in motor efficiency, thereby affecting energy consumption, motor temperature may affect operating efficiency, overheating may result in a decrease in motor efficiency, and frequent start-stop operations may result in additional energy loss from the motor.
(2) And acquiring normal operation parameters of all the constituent equipment in the electric propulsion system based on the model of the ship electric propulsion system.
(3) Comparing the operation parameters of all the component devices with the normal operation parameters, if the operation parameters of all the component devices meet the normal operation parameters, analyzing that the fuel consumption abnormality is caused by the abnormal water condition environment, and if the operation parameters of some component devices do not meet the normal operation parameters, executing (4).
It should be noted that, in analyzing the abnormal fuel consumption, it is considered that the fuel is consumed through the conversion of the electric propulsion system, so that the factors affecting the fuel consumption include the operation state of the electric propulsion system itself and the water condition environmental state.
(4) The navigation acquisition terminal comprises a flow rate meter and an anemometer, wherein the flow rate meter is arranged at the bottom of a ship, the anemometer is arranged on the ship body and is used for acquiring water flow rate and wind speed by the navigation acquisition terminal when the ship navigates to each navigation line section, further, the navigation line section through which the abnormal navigation point passes is determined based on the abnormal navigation point, the water flow rate and the wind speed of the navigation line section through which the abnormal navigation point passes are obtained and are compared with the normal water flow rate and the representative wind speed of the corresponding navigation line section, if the water flow rate or the wind speed of the navigation line section through which the abnormal navigation point passes is greater than the normal water flow rate and the representative wind speed of the corresponding navigation line section, the abnormal fuel consumption cause is analyzed, the internal propulsion fault and the water condition environment are abnormal, and if the water flow rate and the wind speed of the navigation line section through which the abnormal navigation point passes are smaller than or equal to the normal water flow rate and the representative wind speed of the corresponding navigation line section are analyzed, the abnormal fuel consumption cause is the internal propulsion fault.
It should be further noted that, since the fuel plan consumption is obtained based on the normal water flow rate and the representative wind speed, the above-mentioned environmental abnormality of the water condition is relative to the normal water flow rate and the representative wind speed.
The ship navigation state regulation and control module is used for regulating and controlling the ship navigation state based on the abnormal fuel consumption reason, and has the following operation modes: if the abnormal fuel consumption is caused by abnormal water condition environment, starting a low-energy consumption mode in the sailing process of the next sailing point.
If the abnormal fuel consumption is caused by internal propulsion failure, the sailing speed is reduced at the moment, and the electric propulsion system is subjected to failure maintenance operation, so that the original sailing speed is recovered after the electric propulsion system is normally operated, and the normal sailing requirement of the ship can be ensured to the greatest extent.
And if the reasons for abnormal fuel consumption are internal propulsion faults and abnormal water condition environments, performing fault maintenance operation of the electric propulsion system, and starting a low-energy consumption mode.
According to the invention, analysis of reasons of abnormal fuel consumption is increased when abnormal fuel consumption is identified, and targeted treatment measures are adopted according to the reasons, so that solidification of the treatment measures is avoided, the treatment measures can reach better adaptation with the current navigation state requirements of the ship, the navigation efficiency and the low energy consumption are facilitated to the greatest extent, and the practical value is higher.
The foregoing is merely illustrative and explanatory of the principles of this invention, as various modifications and additions may be made to the specific embodiments described, or similar arrangements may be substituted by those skilled in the art, without departing from the principles of this invention or beyond the scope of this invention as defined in the claims.
Claims (7)
1. A marine vessel electric propulsion operation monitoring control system, comprising:
the ship voyage information determining module is used for determining current voyage information of the ship before voyage of the ship, and specifically comprises a voyage route, voyage distance, voyage speed and ship load;
the navigation line segment dividing module is used for determining a water area through which the current navigation line passes according to the navigation route, so that the navigation line is divided into a plurality of navigation line segments, and each navigation line segment corresponds to one water area;
the system comprises an air line segment water condition information acquisition module, a control module and a control module, wherein the air line segment water condition information acquisition module is used for acquiring water condition information of each air line segment;
the reference information base is used for storing the normal water flow rate of each water area in each season and storing the fuel usage amount of the unit ship load corresponding to the unit voyage distance at each voyage speed;
the voyage fuel reserve prediction storage module is used for acquiring energy consumption performance parameters of the electric propulsion system, predicting the fuel reserve of the current voyage by combining the current voyage information of the ship and the water condition information of each voyage segment, and further storing fuel according to the predicted fuel reserve;
the navigation process fuel actual consumption acquisition module is used for setting a plurality of navigation points in the navigation route so as to acquire the fuel actual consumption of the ship to navigate to each navigation point;
the navigation process fuel plan consumption statistics module is used for counting the fuel plan consumption of the ship navigation to each navigation point in the navigation process of the ship;
the fuel consumption abnormality judging module is used for comparing the actual fuel consumption of the ship sailing to each sailing point with the planned fuel consumption, judging whether the fuel consumption is abnormal or not, and if the fuel consumption of the ship sailing to a certain sailing point is abnormal, marking the sailing point as an abnormal sailing point;
the fuel consumption abnormality analysis module is used for monitoring the operation of the electric propulsion system when the ship sails to an abnormal sailing point, so as to analyze the cause of abnormal fuel consumption;
the ship navigation state regulation and control module is used for regulating and controlling the ship navigation state based on the abnormal fuel consumption reason;
the specific implementation process of predicting the fuel reserve of the current voyage is as follows:
obtaining the voyage distance of each voyage segment, extracting voyage speed and ship load from the current voyage information, and carrying out matching calculation on the voyage speed and the ship load and the fuel usage amount of the corresponding unit voyage distance of the unit ship load stored in the reference information base under each voyage speed to obtain the basic fuel usage amount corresponding to each voyage segment;
importing the water condition information corresponding to each route section into a calculation typeCalculating navigation resistance coefficient corresponding to each route section>Wherein i is denoted by the route segment number, < >>，/>、/>Respectively expressed as a preset flow resistance coefficient and a corresponding duty factor of a wind resistance coefficient, ++>、/>Respectively expressed as the flow resistance coefficient and the wind resistance coefficient corresponding to the ith route section, and +.>，/>Wherein->、/>Respectively expressed as normal water flow rate and representative wind speed corresponding to the ith route section, < + >>、/>Respectively representing the preset reference water flow rate and the reference wind speed;
the predicted fuel usage amount corresponding to each route section is counted by combining the navigation resistance coefficient corresponding to each route section with the base fuel usage amount, and the statistical formula is as followsIn the formula->The basic fuel usage amount corresponding to the ith route section is expressed;
using a prediction model to predict the fuel usage amount corresponding to each route section and the energy consumption performance parameter of the electric propulsion systemPredicting to obtain the current voyageFuel preparation amount->In the model->Fuel utilization efficiency, denoted electric propulsion system, < >>Engine rated output, denoted electric propulsion system, < >>Reference engine output, expressed as set, +.>Represented as a pre-configured safety back-up margin;
the method for counting the fuel plan consumption of the ship sailing to each sailing point comprises the following steps:
extracting a navigation route from the current navigation route information, acquiring a navigation starting point from the navigation route, and further determining a route section passed by each navigation point and the passing distance of the passed route section from the navigation starting point;
using statistical formulasObtaining the fuel plan consumption of the ship sailing to each sailing point +.>Wherein j is represented by the number of navigation points, ">，/>The estimated fuel usage corresponding to the kth route segment passed by the jth navigation point, k being expressed as the passing of each navigation pointRoute section number,/->，/>Expressed as the distance traveled by the jth navigation point through the kth navigation line segment, < >>A voyage distance represented as a kth voyage segment;
the fuel consumption abnormality is judged as follows:
comparing the actual fuel consumption of the ship sailing to each sailing point with the planned fuel consumption, and expressing the actual fuel consumption by the expressionCalculating fuel consumption difference degree of each navigation point +.>Wherein->Expressed as the actual fuel consumption of the ship sailing to the jth sailing point, e is expressed as a natural constant;
comparing the fuel consumption difference degree of each navigation point with the set allowable fuel consumption difference degree progress, and judging that the fuel consumption is abnormal if the fuel consumption difference degree of a certain navigation point is larger than the set allowable fuel consumption difference degree.
2. The marine vessel electric propulsion operation monitoring control system of claim 1, wherein: the water condition information comprises a normal water flow rate and a representative wind speed, wherein the water flow rate is obtained by the following steps:
acquiring seasons corresponding to current voyages, and simultaneously screening normal water flow rates corresponding to each route section from normal water flow rates of each water area stored in a reference information base in each season by combining water area names corresponding to each route section;
the representative wind speed is obtained as follows:
acquiring a voyage period of the current voyage based on the voyage distance and voyage speed of the current voyage, and combining the current date to form a voyage period of the current voyage;
and acquiring the wind speed of each route section in each day in the navigation period corresponding to the current route from the meteorological center based on the water area corresponding to each route section, and taking the maximum wind speed as the representative wind speed corresponding to each route section.
3. The marine vessel electric propulsion operation monitoring control system of claim 2, wherein: the energy consumption performance parameters include fuel utilization efficiency and rated output power of the engine.
4. The marine vessel electric propulsion operation monitoring control system of claim 1, wherein: the specific implementation mode of setting a plurality of navigation points in the navigation route is as follows:
extracting the navigation distance from the current navigation information, and further uniformly dividing the navigation distance according to the set interval distance on the navigation route to obtain a plurality of navigation points.
5. The marine vessel electric propulsion operation monitoring control system of claim 1, wherein: the specific acquisition mode of the actual fuel consumption of the ship sailing to each sailing point is as follows:
and when the ship sails to each sailing point, acquiring the fuel residual quantity, and subtracting the fuel residual quantity of each sailing point from the fuel residual quantity of the current voyage to obtain the actual fuel consumption of the ship sailing to each sailing point.
6. The marine vessel electric propulsion operation monitoring control system of claim 1, wherein: the analysis of the cause of abnormal fuel consumption is described in the following procedures:
(1) Monitoring operation parameters of all the constituent equipment in the electric propulsion system when the ship sails to an abnormal sailing point;
(2) Acquiring normal operation parameters of all constituent equipment in the electric propulsion system based on the model of the ship electric propulsion system;
(3) Comparing the operation parameters of all the component devices with the normal operation parameters, if the operation parameters of all the component devices meet the normal operation parameters, analyzing that the fuel consumption abnormality is caused by the abnormal water condition environment, and if the operation parameters of some component devices do not meet the normal operation parameters, executing (4);
(4) The navigation acquisition terminal is arranged on the ship and is used for acquiring water flow and wind speed when the ship navigates to each navigation line segment, and further determining the navigation line segment passed by the abnormal navigation point based on the abnormal navigation point, so that the water flow and wind speed of the navigation line segment passed by the abnormal navigation point are acquired and compared with the normal water flow and the representative wind speed of the corresponding navigation line segment, if the water flow or the wind speed of the navigation line segment passed by the abnormal navigation point is greater than the normal water flow and the representative wind speed of the corresponding navigation line segment, the abnormal fuel consumption cause is analyzed to be internal propulsion failure and the water condition environment is abnormal, and if the water flow and the wind speed of the navigation line segment passed by the abnormal navigation point are smaller than or equal to the normal water flow and the representative wind speed of the corresponding navigation line segment, the abnormal fuel consumption cause is analyzed to be internal propulsion failure.
7. The marine vessel electric propulsion operation monitoring control system of claim 6, wherein: the ship navigation state regulation and control operation mode based on the abnormal fuel consumption causes comprises the following steps:
if the fuel consumption abnormality is caused by abnormal water condition environment, starting a low-energy consumption mode in the sailing process of the next sailing point;
if the abnormal fuel consumption is caused by internal propulsion failure, the sailing speed is reduced at the moment, and the fault maintenance operation of the electric propulsion system is carried out, so that the original sailing speed is recovered after the electric propulsion system is normally operated;
and if the reasons for abnormal fuel consumption are internal propulsion faults and abnormal water condition environments, performing fault maintenance operation of the electric propulsion system, and starting a low-energy consumption mode.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069254A (en) * | 2010-06-24 | 2013-04-24 | Abb有限公司 | Method and arrangement for controllin energy consumption in a marne vessel |
| CN106335601A (en) * | 2016-08-29 | 2017-01-18 | 南通中远川崎船舶工程有限公司 | Ship energy saving method based on big data collection and analysis |
| CN107563576A (en) * | 2017-10-14 | 2018-01-09 | 连云港杰瑞深软科技有限公司 | A kind of ship intelligence energy efficiency management system |
| CN108537715A (en) * | 2017-03-02 | 2018-09-14 | 纳博特斯克有限公司 | Information processing unit, information processing method and storage medium |
| CN110967022A (en) * | 2019-12-24 | 2020-04-07 | 上海船舶运输科学研究所 | Ship speed optimization aid decision-making system |
| CN112558910A (en) * | 2020-12-23 | 2021-03-26 | 岳西县恒意机械有限公司 | Marine double-screen display and control console and control system thereof |
| CN112784473A (en) * | 2020-12-17 | 2021-05-11 | 苏州载诺信息科技有限公司 | Ship fuel saving system and method for intelligently analyzing navigation information and optimizing energy |
| WO2021246970A1 (en) * | 2020-06-05 | 2021-12-09 | Chord X Pte. Ltd. | System to acquire and process signals for monitoring performance of vessel parts using rule-based anomaly detection |
-
2023
- 2023-10-31 CN CN202311429212.7A patent/CN117331374B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069254A (en) * | 2010-06-24 | 2013-04-24 | Abb有限公司 | Method and arrangement for controllin energy consumption in a marne vessel |
| CN106335601A (en) * | 2016-08-29 | 2017-01-18 | 南通中远川崎船舶工程有限公司 | Ship energy saving method based on big data collection and analysis |
| CN108537715A (en) * | 2017-03-02 | 2018-09-14 | 纳博特斯克有限公司 | Information processing unit, information processing method and storage medium |
| CN107563576A (en) * | 2017-10-14 | 2018-01-09 | 连云港杰瑞深软科技有限公司 | A kind of ship intelligence energy efficiency management system |
| CN110967022A (en) * | 2019-12-24 | 2020-04-07 | 上海船舶运输科学研究所 | Ship speed optimization aid decision-making system |
| WO2021246970A1 (en) * | 2020-06-05 | 2021-12-09 | Chord X Pte. Ltd. | System to acquire and process signals for monitoring performance of vessel parts using rule-based anomaly detection |
| CN112784473A (en) * | 2020-12-17 | 2021-05-11 | 苏州载诺信息科技有限公司 | Ship fuel saving system and method for intelligently analyzing navigation information and optimizing energy |
| CN112558910A (en) * | 2020-12-23 | 2021-03-26 | 岳西县恒意机械有限公司 | Marine double-screen display and control console and control system thereof |
Non-Patent Citations (1)
| Title |
|---|
| 水上LNG加注站市场预测的研究;刘志仁;;煤气与热力;20200115(01);第78-82+99-100页 * |
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