CN105035296A - Automatic energy system working mode switching device and method for hybrid electric propulsion ship - Google Patents
Automatic energy system working mode switching device and method for hybrid electric propulsion ship Download PDFInfo
- Publication number
- CN105035296A CN105035296A CN201510489494.9A CN201510489494A CN105035296A CN 105035296 A CN105035296 A CN 105035296A CN 201510489494 A CN201510489494 A CN 201510489494A CN 105035296 A CN105035296 A CN 105035296A
- Authority
- CN
- China
- Prior art keywords
- power
- mode
- battery
- ship
- working
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims description 35
- 238000001514 detection method Methods 0.000 claims description 33
- 239000011159 matrix material Substances 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 238000011156 evaluation Methods 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 230000011664 signaling Effects 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses an automatic energy system working mode switching device for a hybrid electric propulsion ship. The automatic energy system working mode switching device comprises a series connection hybrid system, an automatic energy system working mode switching system and a power control module. The hybrid energy system working mode is determined intelligently according to a power battery SOC, a battery working temperature T and a requirement power P so that the working mode can be switched automatically. The automatic energy system working mode switching device aims to overcome the defects of manual switching, reduce failures, guarantee the safety and achieve automatic switching. Meanwhile, besides the battery remaining capacity, the battery working temperature and the power required by the ship are considered, the working performance of the power battery can be played effectively, the service life is prolonged, and energy conservation and emission reduction and runtime performance of the ship can be improved more effectively. The invention further discloses an automatic energy system working mode switching method for the hybrid electric propulsion ship.
Description
The technical field is as follows:
the invention relates to a hybrid power ship energy system, in particular to a device and a method for automatically switching working modes of a hybrid power electric propulsion ship energy system.
Background art:
with the continuous development of global economy, the pollution of the waste discharged by ships to the environment is becoming serious. As for pollution caused by ships, more and more countries and regions are actively taking various effective measures to reduce pollution of ship exhaust gas to the atmosphere. Marine electric propulsion is an advanced way of marine propulsion. The propulsion mode can improve the technical and economic performance of the ship, has the characteristics of good maneuverability, low noise, energy conservation and environmental protection, can reduce the exhaust emission of the ship, reduces the fuel energy consumption of the ship, and can obtain better dynamic characteristics.
The hybrid electric propulsion ship is an energy-saving ship composed of clean energy sources such as power lithium batteries, solar energy, wind energy and the like and a conventional fuel generator set, and can remarkably reduce the energy consumption and the exhaust emission of the ship. The novel inland river electric propulsion ship is a mature inland river electric propulsion ship adopting a hybrid energy mode at present, wherein a lithium ion battery (power battery) is used as a main power supply of an electric propulsion system, and a diesel generator set is used as an auxiliary power supply. The electric propulsion ship with the power battery as the main power supply can realize zero emission of ship smoke and can generate remarkable energy-saving and emission-reducing effects. Meanwhile, the hybrid energy mode of the power battery and the auxiliary diesel generator set ensures the navigation safety of the electrically propelled ship taking the power battery as the main power supply and improves the cruising performance of the electrically propelled ship taking the power battery as the main power supply.
The working modes of the hybrid power ship energy system can be mainly divided into three modes, namely a power battery power supply mode, a diesel generator set power supply mode and a hybrid power supply working mode. The main methods for switching the working modes of the traditional hybrid power ship energy system are divided into two methods, wherein one method is manual switching, and the other method is switching according to the residual electric quantity of a power battery.
The working modes of the hybrid power ship energy system are manually switched, and the switching is mainly carried out according to experience. For example, the battery power, or the ship speed or the mileage, etc. are used as the main basis. However, the empirical judgment is extensive and not necessarily accurate, optimization of energy conservation and emission reduction cannot be realized, and once the empirical judgment is wrong, a fault is easy to occur.
The working mode of the hybrid power ship energy system is switched according to the residual electric quantity of the battery, and the hybrid power ship energy system is an automatic switching mode. For example, a battery remaining capacity threshold range may be set: when the residual quantity of the battery is higher than the upper limit value, the power supply mode of the power battery can be switched; and when the residual capacity is lower than the lower limit value, switching to a diesel generator power supply mode. Compared with manual switching, the method can effectively avoid the defects and can perform automatic switching. However, the method of switching according to the remaining capacity of the battery is relatively simple, and does not consider the problems of the battery operating temperature, the power demand of the power system and the like. For example, when the working temperature of the power battery is lower than or higher than the limit value, the working performance and the service life of the power battery are greatly influenced, and the energy saving and emission reduction efficiency of the ship is influenced.
The invention content is as follows:
the invention aims to avoid the defect of manual switching, reduce faults, ensure safety, realize optimization of energy conservation and emission reduction and achieve the aim of automatic switching. Meanwhile, besides the residual electric quantity of the battery, the working performance of the power battery can be effectively exerted by considering the working temperature problem of the battery and the required power of the ship, the service life is prolonged, and the energy conservation, emission reduction and endurance performance of the ship can be effectively improved.
The invention provides a device and a method for automatically switching working modes, aiming at the defect of the traditional hybrid power ship working mode switching. According to comprehensive judgment of the residual electric quantity SOC of the power battery, the working temperature T of the battery and the required power P of the propulsion motor, the optimal working mode of the hybrid energy system of the ship under various working conditions is intelligently and automatically switched.
The technical scheme of the invention is as follows:
an automatic switching device for the working modes of an energy system of a hybrid power ship comprises a series hybrid power system, an automatic switching system for the working modes of the energy system and a power control module. The series hybrid power system comprises a diesel engine, a synchronous motor, an AC/DC converter, a first change-over switch, a power battery, a DC/DC converter, a second change-over switch, a direct-current busbar, a DC/AC converter, a propulsion motor, a gear box and a propeller; the automatic switching system of the working mode of the energy system comprises a signal detection module, a signal processing module, an automatic signal switching module and a switch switching module, and is responsible for judging and automatically switching the working mode; the switch switching module selects the on and/or off of the first change-over switch and the second change-over switch; the power control module completes power distribution to the energy sources according to the automatic switching result of the working modes; the diesel engine and the synchronous motor are mechanically connected to form a diesel engine set, the diesel engine set is electrically connected with an AC/DC converter and a first change-over switch, and then is supplied with power to a propulsion motor through a direct current bus and a DC/AC converter, and the propulsion motor is mechanically connected with a gear box and a propeller to control the navigational speed of the ship; the power battery is electrically connected with the DC/DC converter and the second change-over switch, and supplies power to the propulsion motor through the DC busbar and the DC/AC converter, and the propulsion motor is mechanically connected with the gear box and the propeller to control the navigational speed of the ship; the signal detection module is connected with the diesel-electric set, the clock signal, the power battery and the propulsion motor through signals, detects parameters of the SOC, the temperature T and the required power of the power battery, and then transmits the signals to the signal processing module and the automatic switching module to complete switching of the switch; meanwhile, the other signal of the signal automatic switching module is transmitted to the power control module; and finally sending a control signal to control the power output of the diesel generator set and the on-off of the bidirectional DC/DC converter according to signals from the power battery and the propulsion motor by the power control module so as to complete the power distribution work of the hybrid power energy system.
And the signal processing module intelligently determines the working mode according to comprehensive judgment of the three characteristic quantities of the SOC, the T and the P. The working modes of the hybrid ship can be mainly divided into three modes: power battery working modeDiesel engine set working modeHybrid mode of operationThen the working modeIf the characteristic quantity M is (SOC, T, P), a judgment relationship is established:(A is the weight combination of the residual capacity of the power battery, the working temperature of the battery and the influence of the required power of the propulsion motor on the working mode of the ship). Obtaining phi according to the evaluation relation, and taking Max (phi) as a mode switching basis according to the maximum membership rule.
When the ship is propelled by the power battery independently, the signal detection module can detect the residual electric quantity SOC of the power battery, the ship required power P and a clock signal. When the SOC of the power battery is insufficient or the required power is large, the power battery is not enough to independently bear power supply, the proportion of each working mode is determined after comprehensive processing of the signal processing module, and the signal automatic switching module controls the switch switching module and closes the switch according to the maximum membership principle. Meanwhile, the power control module distributes the power provided by the diesel generator set and the power battery according to the required power. Thus, the hybrid ship completes the switching from the power battery supply mode to the hybrid supply mode.
Similarly, when the power battery is lower than the safety critical value, the proportion of the working mode is determined after the processing of the signal detection module and the signal processing module, the switch switching module is controlled by the signal automatic switching module, the first switch is turned on, and the second switch is turned off. The power control module determines the power value of the diesel generator set according to the required power, and the required power is borne by the diesel generator set completely. Thus, the hybrid ship is switched to the diesel-electric set operating mode.
The signal detection module periodically detects signals of the residual electric quantity SOC of the power battery, the working temperature T of the battery and the required power P of the ship and outputs corresponding values.
The processing process of the signal processing module is divided into three steps. The residual electric quantity SOC of the power battery, the working temperature T of the battery and the required power P of the ship correspond to different membership function relations for the three working modes of the ship, and different SOC, T or P correspond to respective membership values. Step one, calculating the corresponding membership degree according to the SOC, T and P values output by the detection module to obtain a membership degree matrix:
wherein,andrepresenting membership of residual capacity SOC of power battery to three working modesA value;andrepresenting membership values of the battery working temperature to the three working modes; andrepresenting the membership of the required power to the three modes of operation.
Second, the weights of SOC, T and P are assigned to obtain a ═ α1,α2,α3) In which α is1+α2+α3＝1。
And thirdly, combining the results of the first step and the second step to obtain the ratio values of the three working modes, wherein phi is A and R is (mu)1,μ2,μ3) In which μ1+μ2+μ3＝1。
The automatic switching module is used for selecting the maximum one of the three modes as the optimal working mode according to the calculation result of the signal processing module and the maximum membership principle, namely Max (phi), and further controlling the system to automatically switch to the corresponding working mode: when mu is1At the maximum, the optimal mode is a mode one, namely a pure battery working mode; when mu is2At the maximum, the optimal mode is a mode two, namely a diesel engine set working mode; when mu is3At the maximum, the optimal mode is mode three, i.e., the hybrid power supply mode.
And comparing the obtained mode signal with the current mode signal, and controlling the on and off of the first change-over switch and the second change-over switch by the system to complete the automatic switching of the working mode of the hybrid energy system.
The invention also provides an automatic switching method of the automatic switching device for the working modes of the hybrid power ship energy system, which comprises the following steps:
step 1
Initialization: when the ship normally sails, an automatic switching system is initialized, and the operation is started;
step 2
Detecting a current working mode: the signal detection module detects the current ship working mode, records the current ship working mode, and compares the current ship working mode with the mode signal of the automatic switching module;
step 3
Battery parameter detection: detecting battery parameters, and calculating according to corresponding parameters to obtain the current SOC value of the battery;
step 4
Detecting the temperature of the battery: detecting the real-time working temperature T of the power battery as an important parameter for calculating the membership degree R; step 5
Power signal addition measurement: detecting a propulsion motor and a clock signal, and calculating to obtain a value of required power according to the real-time power of the propulsion motor and the clock signal, wherein the value is used as another important parameter for calculating the membership degree R;
step 6
Calculating a membership matrix: and the signal processing module receives the parameter values transmitted by the signal detection module, and calculates to obtain corresponding membership matrix R values according to the membership relations among the SOC of the power battery, the working temperature T of the battery, the required power and the three working modes.
Step 7
And (3) calculating a decision matrix: according to the weight A obtained by the distribution of the signal processing module to the weights of the three characteristic quantities, and further according to the membership degree matrix R and the weight A, calculating to obtain a hybrid power ship working mode decision matrixφ＝A·R＝(μ1,μ2,μ3)。
Step 8
And (3) mode judgment: automatic switching module according to mu1,μ2,μ3The sizes of the three are as follows: mu.s of1＞μ2And mu1＞μ3If so, outputting the power battery to a first mode, namely a power battery power supply mode; mu.s of1≤μ2And mu2＞μ3If so, outputting the power supply mode to be a mode two, namely a power supply mode of the diesel-electric set; mu.s of1＞μ2And mu1≤μ3Or μ1≤μ2And mu2≤μ3And if so, outputting the mode III, namely the hybrid power supply mode.
Step 9
Comparing mode signals: and comparing the mode signal result output in the step 8 with the received current ship working mode signal.
Step 10
And (3) judging consistency: and judging the consistency. If the two phases are consistent, returning to the re-detection and entering the next cycle. And if the two signals are not consistent, sending a mode switching signal.
Step 11
Mode switching: the automatic switching module 19 controls the switch switching module 15 to switch to the corresponding operating mode, and then back to the beginning to enter the next cycle.
The invention is further illustrated with reference to the following figures and examples.
Description of the drawings:
FIG. 1 is a schematic diagram of three operation modes of the automatic switching device for the operation modes of the energy system of the hybrid power ship;
FIG. 2 is a schematic structural diagram of the automatic switching device for the working modes of the energy system of the hybrid power ship;
FIG. 3 is a schematic view of the working principle of the automatic switching device for the working modes of the energy system of the hybrid power ship;
fig. 4 is a flow chart of the operation of the automatic switching device for the working mode of the hybrid power vessel energy system.
In the figure, 1 is a diesel engine, 2 is a synchronous motor, 3 is an AC/DC converter, 4 is a first change-over switch, 5 is a power battery 5, 6 is a DC/DC converter, 7 is a second change-over switch, 8 is a DC bus bar, 9 is a DC/AC converter, 10 is a propulsion motor 10, 11 is a gear box, 12 is a propeller, 13 is a diesel generator set, 17 is a signal detection module, 18 is a signal processing module, 19 is a signal automatic change-over module, and 15 is a switch change-over module.
The specific implementation method comprises the following steps:
three modes of operation of the hybrid marine system are shown in fig. 1. As shown in fig. 1(a), in the pure electric operation mode, at this time, the second change-over switch 7 is turned on, the first change-over switch 4 is turned off, the power battery 5 alone supplies power to the motor 10, and the diesel generator set 13 (including the diesel engine 1 and the synchronous motor 2) stops working; fig. 1(b) shows a diesel engine set operation mode, in which the first change-over switch 4 is closed, the second change-over switch 7 is opened, and the diesel engine set 13 alone supplies power to the electric motor 10; fig. 1(c) shows a hybrid operation mode, in which the first change-over switch 4 and the second change-over switch 7 are both closed, and the diesel-electric generator set 13 and the power battery 5 jointly supply power to the electric motor 10.
Under the normal sailing state of the ship, a power battery 5 supplies power to a propulsion motor 10 through a DC/DC converter 6, a direct current busbar 8 and a DC/AC converter 9, a propeller 12 is driven to drive the ship to sail through a gear box 11 in a variable speed mode, at the moment, a second change-over switch 7 is closed, a first change-over switch 4 is opened, and a diesel generator set 13 does not work;
when the energy storage of the power battery 6 is insufficient and the power supply can not be carried out independently, the automatic switching device judges that the optimal working mode is the hybrid power supply mode. At the moment, the first switch 4 is automatically closed, the power battery 6 supplies power to the propulsion motor 10 through the DC/DC converter 6 and the diesel generator set 13 through the AC/DC converter 3, the direct-current busbar 8 and the DC/AC converter 9, and the propeller 12 is driven to propel the ship to sail through the gear box 11 in a variable speed mode. Thus, the system completes switching from the power battery supply mode to the hybrid supply mode.
When the energy stored in the power battery 6 is used up or the power battery fails, the automatic switching device judges that the optimal working mode is the power supply mode of the diesel generator set. At the moment, the first change-over switch 4 is automatically closed, the second change-over switch 7 is opened, the diesel generator set 13 supplies power to the propulsion motor 10 through the AC/DC converter 3, the direct current busbar 8 and the DC/AC converter 9, and the gear box 11 drives the propeller 12 to push the ship to sail. Thus, the system completes switching from the hybrid power supply mode to the diesel generator set power supply mode.
The system structure of the automatic switching device for the working modes of the energy system of the hybrid power ship is shown in the second drawing. The diesel engine 1, the synchronous motor 2, the AC/DC converter 3, the selector switch 4, the power battery 5, the DC/DC converter 6, the selector switch 7, the direct-current busbar 8, the DC/AC converter 9, the propulsion motor 10, the gear box 11 and the propeller 12 jointly form a series hybrid power system; the signal detection module 17, the signal processing module 18, the signal automatic switching module 19 and the switch switching module 15 form a core structure of an energy system working mode automatic switching system, and the judgment and the automatic switching of the working mode are completed; the power control module 14 completes the power distribution to the energy sources according to the result of the automatic switching of the operation mode. Wherein the diesel engine 1 and the synchronous motor 2 form a diesel generator set 13.
The diesel engine 1 and the synchronous motor 2 are mechanically connected to form a diesel engine set 13, and the diesel engine set is electrically connected with the AC/DC converter and the change-over switch 4 to the DC bus bar 8 and the DC/AC converter 9 to supply power to the propulsion motor 10. The propulsion motor is mechanically connected with the gear box and the propeller to control the navigational speed of the ship; similarly, the power battery 5 is electrically connected with the DC/DC converter and the change-over switch 7 to the DC busbar 8 and the DC/AC converter 9 to supply power to the propulsion motor 10; the signal detection module 17 is connected with the diesel-electric set 13, the clock signal 16, the power battery 5 and the propulsion motor 10 through signals, detects parameters of the power battery SOC, the temperature T and the required power P, and then transmits the signals to the signal processing module 18 and the automatic switching module 19 to complete switching of the switch, and meanwhile, another signal of the automatic signal switching module 19 is transmitted to the power control module 14. The power control module 14 finally sends a control signal to control the power output of the diesel generator set 13 and the on/off of the bidirectional DC/DC converter 6 according to the signals from the power battery 5 and the propulsion motor 10. Therefore, the power distribution work of the hybrid power energy system is completed.
When the ship is propelled by the power battery alone, the signal detection module 17 detects the parameter SOC of the power battery 5, the required power of the propulsion motor 10 and the clock signal 16. When the SOC of the power battery 5 is insufficient or the required power is large, the power battery 5 cannot bear power supply alone, after comprehensive processing by the signal processing module 18, the proportion occupied by each working mode is determined, and according to the maximum membership principle, the signal automatic switching module 19 controls the switch switching module 15 to close the switch 4. Meanwhile, the power control module 14 distributes the power provided by the diesel generator set 13 and the power battery 5 according to the required power. Thus, the hybrid ship completes the switching from the power battery supply mode to the hybrid supply mode.
Similarly, when the power battery is lower than the safety critical value, the ratio of the working modes is determined after the processing of the signal detection module 17 and the signal processing module 18, the signal automatic switching module 19 controls the switch switching module 15 to turn on the switch 4 and turn off the switch 7. The power control module 14 determines the power value of the diesel generator set 13 according to the required power, and at this time, the required power is all borne by the diesel generator set 13. Thus, the hybrid ship is switched to the diesel-electric set operating mode.
The working principle of the automatic switching device for the working mode of the energy system of the hybrid power ship is shown in the third figure, and the automatic switching system for the working mode of the energy system mainly comprises a signal detection module 17, a signal processing module 18 and an automatic switching module 19.
The signal detection module 17 periodically detects signals of the power battery remaining capacity SOC, the battery operating temperature T and the ship required power P and outputs corresponding values.
The signal processing module 18 is divided into three steps, and the remaining power SOC of the power battery, the working temperature T of the battery and the required power P of the ship correspond to different membership function relationships for three working modes of the ship, and different SOC, T or P correspond to respective membership values. Step one, calculating the corresponding membership degree according to the SOC, T and P values output by the detection module to obtain a membership degree matrix:
wherein,andrepresenting membership values of the residual electric quantity SOC of the power battery to the three working modes;andrepresenting membership values of the battery working temperature to the three working modes; andrepresenting the membership of the required power to the three modes of operation.
Second, the weights of SOC, T and P are assigned to obtain a ═ α1,α2,α3) In which α is1+α2+α3＝1。
And thirdly, combining the results of the first step and the second step to obtain the ratio values of the three working modes, wherein phi is A and R is (mu)1,μ2,μ3) In which μ1+μ2+μ3＝1。
The automatic switching module 19 selects the largest one of the three as the optimal working mode according to the calculation result of the signal processing module 18 and the maximum membership principle, namely Max (phi), and then the control system automatically switches to the corresponding working mode: when mu is1At the maximum, the optimal mode is a mode one, namely a pure battery working mode; when mu is2At the maximum, the optimal mode is a mode two, namely a diesel engine set working mode; when mu is3At the maximum, the optimal mode is mode three, i.e., the hybrid power supply mode.
And comparing the obtained mode signal with the current mode signal, and controlling the on and off of the first change-over switch 4 and the second change-over switch 7 by the system to complete the automatic switching of the working mode of the hybrid energy system.
The invention also provides an automatic switching method of the automatic switching device for the working modes of the hybrid power ship energy system, which comprises the following steps:
step 1
Initialization: when the ship normally sails, an automatic switching system is initialized, and the operation is started;
step 2
Detecting a current working mode: the signal detection module detects the current ship working mode, records the current ship working mode, and compares the current ship working mode with the mode signal of the automatic switching module;
step 3
Battery parameter detection: detecting battery parameters, and calculating according to corresponding parameters to obtain the current SOC value of the battery;
step 4
Detecting the temperature of the battery: detecting the real-time working temperature T of the power battery as an important parameter for calculating the membership degree R; step 5
Power signal addition measurement: detecting a propulsion motor and a clock signal, and calculating to obtain a value of required power according to the real-time power of the propulsion motor and the clock signal, wherein the value is used as another important parameter for calculating the membership degree R;
step 6
Calculating a membership matrix: and the signal processing module receives the parameter values transmitted by the signal detection module, and calculates to obtain corresponding membership matrix R values according to the membership relations among the SOC of the power battery, the working temperature T of the battery, the required power and the three working modes.
Step 7
And (3) calculating a decision matrix: according to the weight A obtained by the distribution of the signal processing module to the weights of the three characteristic quantities, and further according to the membership matrix R and the weight A, calculating to obtain a hybrid power ship-out working mode decision matrix phi (A) and R (mu)1,μ2,μ3)。
Step 8
And (3) mode judgment: automatic switching module according to mu1,μ2,μ3The sizes of the three are as follows: mu.s of1＞μ2And mu1＞μ3If so, outputting the power battery to a first mode, namely a power battery power supply mode; mu.s of1≤μ2And mu2＞μ3If so, outputting the power supply mode to be a mode two, namely a power supply mode of the diesel-electric set; mu.s of1＞μ2And mu1≤μ3Or μ1≤μ2And mu2≤μ3And if so, outputting the mode III, namely the hybrid power supply mode.
Step 9
Comparing mode signals: and comparing the mode signal result output in the step 8 with the received current ship working mode signal.
Step 10
And (3) judging consistency: judging consistency, if the ship working mode signals in the step 2 and the step 9 are consistent, returning to the step of re-detection, and entering the next cycle; and if the two are not consistent, sending a mode signal.
Step 11
Mode switching: the automatic switching module 19 controls the switch switching module 15 to switch to the corresponding operating mode, thereby returning to the beginning and entering the next cycle.
And the third diagram is an operation flow chart of the automatic switching system of the hybrid power ship. During normal navigation of the ship, after the automatic switching system is initialized, the signal detection module 17 can firstly detect and record the current working mode of the ship, and then detect the real-time SOC of battery parameters, the real-time working temperature T of the battery and the required power signals of the propulsion motor and the clock. Therefore, the signal processing module 18 receives the parameter values transmitted by the signal detection module 17, and calculates to obtain corresponding membership matrix R values according to the membership relations between the power battery SOC, the battery working temperature T, the required power and the three working modes. And distributing the weights of the three characteristic quantities to obtain a weight A, and calculating a hybrid power ship-out working mode decision matrix phi (A) and R (mu) according to a membership first matrix R and the weight A1,μ2,μ3). The output result is transmitted to the automatic switching module 19 according to mu1,μ2,μ3The sizes of the three are as follows: mu.s of1＞μ2And mu1＞μ3If so, outputting the power battery to a first mode, namely a power battery power supply mode; mu.s of1≤μ2And mu2＞μ3When the power is on, the output is in a mode two, namely the diesel and the electricity are obtainedA unit power supply mode; mu.s of1＞μ2And mu1≤μ3Or μ1≤μ2And mu2≤μ3And if so, outputting the mode III, namely the hybrid power supply mode. The output mode result is compared with the received current ship working mode signal. And if the ship working mode signals in the step 2 and the step 9 are consistent, returning to the detection again, and entering the next cycle. If the difference is not equal, the automatic switching module 19 controls the switch switching module 15 to switch to the corresponding working mode, so as to enter the next cycle.
The foregoing shows and describes the general principles, features and advantages of the invention. The scope of the patent claims is defined by the appended claims and their equivalents.
Claims (6)
1. A hybrid power ship energy system working mode automatic switching device comprises a series hybrid power system, an energy system working mode automatic switching system and a power control module; the series hybrid power system comprises a diesel engine (1), a synchronous motor (2), an AC/DC converter (3), a first change-over switch (4), a power battery (5), a DC/DC converter (6), a second change-over switch (7), a direct current busbar (8), a DC/AC converter (9), a propulsion motor (10), a gear box (11) and a propeller (12); the automatic switching system of the working mode of the energy system comprises a signal detection module (17), a signal processing module (18), an automatic signal switching module (19) and a switch switching module (15), and is responsible for judging and automatically switching the working mode; the switch switching module (15) selects the on and/or off of the first switch (4) and the second switch (7); the power control module (14) completes power distribution to the energy sources according to the automatic switching result of the working modes; the diesel engine (1) and the synchronous motor (2) are mechanically connected to form a diesel engine set (13), the diesel engine set is electrically connected with the AC/DC converter (3), the first selector switch (4), the direct current busbar (8) and the DC/AC converter (9) to supply power to the propulsion motor (10), and the propulsion motor (10) is mechanically connected with the gear box (11) and the propeller (12) to control the navigational speed of the ship; the power battery (5) is electrically connected with the DC/DC converter (6) and the change-over switch (7) and supplies power to the propulsion motor (10) through the DC busbar (8) and the DC/AC converter (9), and the propulsion motor (10) is mechanically connected with the gear box (11) and the propeller (12) to control the navigational speed of the ship; the method is characterized in that:
the signal detection module (17) is connected with the diesel-electric set (13), the clock signal (16), the power battery (5) and the propulsion motor (10) through signals, detects parameters of the SOC, the temperature T and the required power of the power battery, and then transmits the signals to the signal processing module (18) and the automatic switching module (19) to complete switching of the switch; meanwhile, another signal of the signal automatic switching module (19) is transmitted to the power control module (14); the power control module (14) finally sends a control signal to control the power output of the diesel generator set (13) and the on-off of the bidirectional DC/DC converter (6) according to signals from the power battery (5) and the propulsion motor (10), and the power distribution work of the hybrid power energy system is completed.
2. The hybrid marine power system operation mode automatic switching apparatus according to claim 1,
the operation modes of the hybrid ship include three: power battery working modeDiesel engine set working modeHybrid mode of operationMode of operationCharacteristic amount M ═ (SOC, T, P); the signal processing module (18) intelligently determines a working mode according to comprehensive evaluation of the three characteristic quantities of SOC, T and P, and establishes an evaluation relation: phi is AM, wherein A is the weight combination of the influence of the residual power of the power battery, the working temperature of the battery and the required power of the propulsion motor on the working mode of the ship; obtaining phi according to the evaluation relation, and taking Max (phi) as a mode switching basis according to the maximum membership rule.
3. The hybrid marine power system operation mode automatic switching apparatus according to claim 2,
when the ship is independently powered and propelled by the power battery, the signal detection module (17) detects the parameter SOC of the power battery (5), the required power of the propulsion motor (10) and a clock signal; when the SOC of the power battery (5) is insufficient or the required power is large, so that the power battery (5) cannot bear power supply independently, the signal processing module (18) determines the proportion of each working mode, and according to the maximum membership principle, the signal automatic switching module (19) controls the switch switching module (15) to close the first switch (4); meanwhile, the power control module (14) distributes the power provided by the diesel generator set (13) and the power battery (5) according to the required power, so that the hybrid power ship completes the switching from the power battery power supply mode to the hybrid power supply mode.
4. The hybrid marine power system operation mode automatic switching apparatus according to claim 2,
when the power battery is lower than the safety critical value, the signal processing module (18) determines the proportion of the working mode, the signal automatic switching module (19) controls the switch switching module (15), the first switch (4) is turned on, and the second switch (7) is turned off; the power control module (14) determines the power value of the diesel generator set (13) according to the required power, and at the moment, the required power of the ship is all borne by the diesel generator set (13), so that the hybrid ship is switched to a diesel generator set working mode.
5. The automatic switching device for the working modes of the energy system of the hybrid ship as claimed in claim 2, wherein the processing process of the signal processing module (18) is divided into three steps; step one, calculating corresponding membership degree according to the values of the residual electric quantity SOC of the power battery, the battery working temperature T and the ship required power P output by the detection module to obtain a membership degree matrix:
wherein,andrepresenting membership values of the residual electric quantity SOC of the power battery to the three working modes;andrepresenting membership values of the battery working temperature to the three working modes;andindicating power demand versus three modes of operationA membership value;
second, the weights of SOC, T and P are assigned to obtain a ═ α1,α2,α3) In which α is1+α2+α3＝1；
And thirdly, combining the results of the first step and the second step to obtain the ratio values of the three working modes, wherein phi is A and R is (mu)1,μ2,μ3) In which μ1+μ2+μ3＝1；
The automatic switching module (19) takes the maximum of the three as the optimal working mode according to the calculation result of the signal processing module (18) and the maximum membership principle, namely Max (phi), and then the control system automatically switches to the corresponding working mode: when mu is1At the maximum, the optimal mode is a mode one, namely a pure battery working mode; when mu is2At the maximum, the optimal mode is a mode two, namely a diesel engine set working mode; when mu is3At the maximum, the optimal mode is a mode three, namely a hybrid power supply mode;
and comparing the obtained mode signal with the current mode signal, and controlling the on and off of the first change-over switch (4) and the second change-over switch (7) by the system to finish the automatic switching of the working mode of the hybrid energy system.
6. A method for automatically switching the operation mode of a hybrid vessel power system, which is used in the device for automatically switching the operation mode of a hybrid vessel power system according to any one of claims 1 to 5, comprising the steps of:
step 1, initialization: when the ship normally sails, an automatic switching system is initialized, and the operation is started;
step 2, detecting the current working mode: the signal detection module detects the current ship working mode, records the current ship working mode, and compares the current ship working mode with the mode signal of the automatic switching module;
step 3, battery parameter detection: detecting battery parameters, and calculating according to corresponding parameters to obtain the current SOC value of the battery;
step 4, detecting the temperature of the battery: detecting the real-time working temperature T of the power battery as an important parameter for calculating the membership degree R;
step 5, power signal addition and measurement: detecting a propulsion motor and a clock signal, and calculating to obtain a value of required power according to the real-time power of the propulsion motor and the clock signal, wherein the value is used as another important parameter for calculating the membership degree R;
step 6, calculating a membership matrix: the signal processing module receives the parameter values transmitted by the signal detection module, and calculates to obtain corresponding membership matrix R values according to the membership relations among the SOC of the power battery, the working temperature T of the battery, the required power and the three working modes;
step 7, judging matrix calculation: according to the weight A obtained by the distribution of the signal processing module to the weights of the three characteristic quantities, and further according to the membership matrix R and the weight A, calculating to obtain a hybrid power ship-out working mode decision matrix phi (A) and R (mu)1,μ2,μ3)；
Step 8, mode judgment: automatic switching module according to mu1,μ2,μ3The sizes of the three are as follows: mu.s of1＞μ2And mu1＞μ3If so, outputting the power battery to a first mode, namely a power battery power supply mode; mu.s of1≤μ2And mu2＞μ3If so, outputting the power supply mode to be a mode two, namely a power supply mode of the diesel-electric set; mu.s of1＞μ2And mu1≤μ3Or μ1≤μ2And mu2≤μ3If so, outputting a mode III, namely a hybrid power supply mode;
step 9, comparing mode signals: comparing the mode signal result output in the step 8 with the received current ship working mode signal;
step 10, consistency judgment: judging consistency, if the ship working mode signals in the step 2 and the step 9 are consistent, returning to the step of re-detection, and entering the next cycle; if not, sending a mode signal;
step 11, mode switching: the automatic switching module (19) controls the switch switching module (15) to switch to the corresponding working mode, so that the operation is started and the next cycle is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489494.9A CN105035296B (en) | 2015-08-11 | 2015-08-11 | Hybrid power Electrical Propulsion Ship energy resource system mode of operation automatic switching control equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510489494.9A CN105035296B (en) | 2015-08-11 | 2015-08-11 | Hybrid power Electrical Propulsion Ship energy resource system mode of operation automatic switching control equipment and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105035296A true CN105035296A (en) | 2015-11-11 |
| CN105035296B CN105035296B (en) | 2017-08-25 |
Family
ID=54442398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510489494.9A Active CN105035296B (en) | 2015-08-11 | 2015-08-11 | Hybrid power Electrical Propulsion Ship energy resource system mode of operation automatic switching control equipment and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105035296B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106005344A (en) * | 2016-06-07 | 2016-10-12 | 镇江赛尔尼柯自动化有限公司 | Tandem coaxial diesel-electric combined propulsion system |
| CN106741794A (en) * | 2016-12-18 | 2017-05-31 | 湖州港口船业有限公司 | Ship hybrid power system |
| CN108602550A (en) * | 2016-02-01 | 2018-09-28 | 川崎重工业株式会社 | The electric system of ship |
| CN108657405A (en) * | 2018-03-08 | 2018-10-16 | 哈尔滨工程大学 | A kind of single machine single-blade formula pneumoelectric mixing ship power system |
| CN109229326A (en) * | 2018-11-09 | 2019-01-18 | 上海中车汉格船舶与海洋工程有限公司 | A kind of fishing boat hybrid power system and propulsion method |
| CN109591995A (en) * | 2017-10-01 | 2019-04-09 | 中国船舶重工集团公司第七研究所 | Based on Chai Chai and vehicle combines power device of the push belt PTO shaft with generator and simultaneously vehicle method |
| CN110182348A (en) * | 2019-05-28 | 2019-08-30 | 杭州电子科技大学 | A kind of hybrid power automatic control device of miniature self-service ship |
| CN110654265A (en) * | 2019-09-29 | 2020-01-07 | 武汉新能源研究院有限公司 | Method and system for monitoring battery of electric ship |
| CN111907679A (en) * | 2020-08-13 | 2020-11-10 | 无锡赛思亿电气科技有限公司 | Control method of direct-current networking ship hybrid power propulsion system |
| CN112104062A (en) * | 2020-08-10 | 2020-12-18 | 珠海格力电器股份有限公司 | Control device and method of ship power supply system and ship power supply system |
| CN113158499A (en) * | 2021-06-28 | 2021-07-23 | 湖北东湖实验室 | Energy management strategy and system of pure battery power ship comprehensive power system |
| CN114655412A (en) * | 2022-03-16 | 2022-06-24 | 武汉理工大学 | Hybrid ship torque distribution method, system, device and storage medium |
| CN115214865A (en) * | 2022-07-29 | 2022-10-21 | 中国船舶重工集团公司第七0四研究所 | Ship hybrid power system and energy management method thereof |
| CN118514824A (en) * | 2024-07-23 | 2024-08-20 | 上海国际港务（集团）股份有限公司 | Auxiliary decision-making method and system for power switching of tug operation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795935A (en) * | 2007-09-06 | 2010-08-04 | 瓦锡兰芬兰有限公司 | Arrangement and method for improving load response in a marine vessel |
| CN202147836U (en) * | 2011-05-11 | 2012-02-22 | 上海海事大学 | Hybrid-powered electric vessel propelling system |
| CN103072681A (en) * | 2013-02-28 | 2013-05-01 | 上海海事大学 | Multi-energy-source hybrid power system for boat |
| CN103318397A (en) * | 2013-06-21 | 2013-09-25 | 上海海事大学 | Bidirectional DC-DC control method for hybrid power ship |
| CN103332284A (en) * | 2013-06-27 | 2013-10-02 | 上海海事大学 | Energy management and control method for electric propulsion system of hybrid power ship |
| CN103708015A (en) * | 2013-12-18 | 2014-04-09 | 上海海事大学 | Double-diesel generating set and lithium battery hybrid power ship structure and control method |
| CN104787288A (en) * | 2015-03-27 | 2015-07-22 | 上海新实达高速游艇制造有限公司 | Ship integrated power system |
-
2015
- 2015-08-11 CN CN201510489494.9A patent/CN105035296B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101795935A (en) * | 2007-09-06 | 2010-08-04 | 瓦锡兰芬兰有限公司 | Arrangement and method for improving load response in a marine vessel |
| CN202147836U (en) * | 2011-05-11 | 2012-02-22 | 上海海事大学 | Hybrid-powered electric vessel propelling system |
| CN103072681A (en) * | 2013-02-28 | 2013-05-01 | 上海海事大学 | Multi-energy-source hybrid power system for boat |
| CN103318397A (en) * | 2013-06-21 | 2013-09-25 | 上海海事大学 | Bidirectional DC-DC control method for hybrid power ship |
| CN103332284A (en) * | 2013-06-27 | 2013-10-02 | 上海海事大学 | Energy management and control method for electric propulsion system of hybrid power ship |
| CN103708015A (en) * | 2013-12-18 | 2014-04-09 | 上海海事大学 | Double-diesel generating set and lithium battery hybrid power ship structure and control method |
| CN104787288A (en) * | 2015-03-27 | 2015-07-22 | 上海新实达高速游艇制造有限公司 | Ship integrated power system |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108602550A (en) * | 2016-02-01 | 2018-09-28 | 川崎重工业株式会社 | The electric system of ship |
| CN106005344A (en) * | 2016-06-07 | 2016-10-12 | 镇江赛尔尼柯自动化有限公司 | Tandem coaxial diesel-electric combined propulsion system |
| CN106741794A (en) * | 2016-12-18 | 2017-05-31 | 湖州港口船业有限公司 | Ship hybrid power system |
| CN109591995A (en) * | 2017-10-01 | 2019-04-09 | 中国船舶重工集团公司第七研究所 | Based on Chai Chai and vehicle combines power device of the push belt PTO shaft with generator and simultaneously vehicle method |
| CN108657405A (en) * | 2018-03-08 | 2018-10-16 | 哈尔滨工程大学 | A kind of single machine single-blade formula pneumoelectric mixing ship power system |
| CN109229326A (en) * | 2018-11-09 | 2019-01-18 | 上海中车汉格船舶与海洋工程有限公司 | A kind of fishing boat hybrid power system and propulsion method |
| CN110182348A (en) * | 2019-05-28 | 2019-08-30 | 杭州电子科技大学 | A kind of hybrid power automatic control device of miniature self-service ship |
| CN110654265A (en) * | 2019-09-29 | 2020-01-07 | 武汉新能源研究院有限公司 | Method and system for monitoring battery of electric ship |
| CN112104062B (en) * | 2020-08-10 | 2021-11-23 | 珠海格力电器股份有限公司 | Control device and method of ship power supply system and ship power supply system |
| CN112104062A (en) * | 2020-08-10 | 2020-12-18 | 珠海格力电器股份有限公司 | Control device and method of ship power supply system and ship power supply system |
| CN111907679A (en) * | 2020-08-13 | 2020-11-10 | 无锡赛思亿电气科技有限公司 | Control method of direct-current networking ship hybrid power propulsion system |
| CN113158499A (en) * | 2021-06-28 | 2021-07-23 | 湖北东湖实验室 | Energy management strategy and system of pure battery power ship comprehensive power system |
| CN113158499B (en) * | 2021-06-28 | 2021-09-03 | 湖北东湖实验室 | Energy management strategy and system of pure battery power ship comprehensive power system |
| CN114655412A (en) * | 2022-03-16 | 2022-06-24 | 武汉理工大学 | Hybrid ship torque distribution method, system, device and storage medium |
| CN115214865A (en) * | 2022-07-29 | 2022-10-21 | 中国船舶重工集团公司第七0四研究所 | Ship hybrid power system and energy management method thereof |
| CN115214865B (en) * | 2022-07-29 | 2024-03-01 | 中国船舶重工集团公司第七0四研究所 | Ship hybrid power system and energy management method thereof |
| CN118514824A (en) * | 2024-07-23 | 2024-08-20 | 上海国际港务（集团）股份有限公司 | Auxiliary decision-making method and system for power switching of tug operation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105035296B (en) | 2017-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105035296B (en) | Hybrid power Electrical Propulsion Ship energy resource system mode of operation automatic switching control equipment and method | |
| CN102358412B (en) | Multi-energy-source hybrid ship electric propulsion system and implementation method thereof | |
| CN103072681B (en) | Multi-energy-source hybrid power system for boat | |
| CN202156534U (en) | Multi-power-resource hybrid-power ship power propulsion system | |
| CN103708015B (en) | A kind of double; two diesel generating set and lithium battery hybrid power boats and ships structure and control method | |
| CN205345303U (en) | Boats and ships polymorphic type energy management system | |
| CN111907680A (en) | Energy efficiency control system and method for hybrid power ship | |
| CN110110422B (en) | Ship multi-power-supply composite utilization minimum fuel consumption rate optimization method | |
| CN110001906B (en) | Ship full-electric propulsion multi-power-supply composite utilization system and power supply method | |
| CN104149960B (en) | Petrol-electric self-hybrid power propelling system applied to inland water transport ships | |
| CN113300422A (en) | Ship hybrid power supply system, ship and power supply control method thereof | |
| CN204037881U (en) | Oil electricity is from hybrid propulsion | |
| CN102120488A (en) | Electric propulsion system for hybrid power boats and implementation method thereof | |
| CN105966590A (en) | Vehicle-passenger ferry provided with energy storage unit type hybrid electric propelling system | |
| CN101585407A (en) | Oil-electric combined charge long-distance all-electric ship with storage battery | |
| CN205801485U (en) | A kind of car passenger ferry of band energy-storage units hybrid electric propulsion system | |
| JP3230878U (en) | Hybrid power system | |
| CN204587283U (en) | A kind ofly can provide the electric plating propulsion of effectively power for ship | |
| CN112977734A (en) | Archaize electronic environmental protection sightseeing boat | |
| CN201457732U (en) | Electricity and oil combined full-electric ship with rechargeable long-distance storage battery | |
| CN116812127A (en) | Dual-drive tug electric propulsion system and intelligent working mode adjusting method thereof | |
| CN102941918A (en) | Electric propulsion device for passenger ferry | |
| Yang et al. | Technology research and experimental simulation of energy management system for diesel electric hybrid ship | |
| CN112564253B (en) | New energy yacht green energy system and energy matching management method | |
| Bennabi et al. | Modeling and simulation of a series hybrid propulsion chain for small ships |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |