阅读说明：本技术 一种混合动力船舶电力推进系统的能量管理与控制方法 (Energy management and control method of electric propulsion system of hybrid power ship ) 是由 黄川� 杨兴林 许冠中 张倩文 唐杰 潘恒 于 2020-04-22 设计创作，主要内容包括：本发明公开了一种混合动力船舶电力推进系统的能量管理与控制方法,S1、使用前,操作人员可以通过无线控制面板向中央处理器输入每个不同数值加速度对应的锂电池、燃料发电系统和超级电容的配合工作方式,作为船舶的预设工作方式,本发明涉及船舶运行能量管理技术领域。该混合动力船舶电力推进系统的能量管理与控制方法,通过加速度传感器实时监测船舶的加速度,根据不同的加速度来切换不同的预定工作方式,在保证低计算量以及操作简单的前提下,同时具体有较强的鲁棒性和较好的实时性,采用锂电池、燃料发电以及超级电容三种能量提供方式,可进行多种供能方式的切换以及配合,为船舶不同的动力需求提供了贴切的供能组合。(The invention discloses an energy management and control method of a hybrid power ship electric propulsion system, and S1, before use, an operator can input the working mode of matching lithium batteries, fuel power generation systems and super capacitors corresponding to different numerical accelerations to a central processing unit through a wireless control panel to serve as a preset working mode of a ship. The energy management and control method of the hybrid power ship electric propulsion system monitors the acceleration of a ship in real time through the acceleration sensor, different preset working modes are switched according to different accelerations, on the premise of ensuring low calculation amount and simple operation, meanwhile, the energy management and control method specifically has stronger robustness and better real-time performance, three energy supply modes of a lithium battery, a fuel generator and a super capacitor are adopted, switching and matching of multiple energy supply modes can be carried out, and appropriate energy supply combinations are provided for different power requirements of the ship.)

1. A method of energy management and control of an electric propulsion system of a hybrid marine vessel, characterized by: the method specifically comprises the following steps:

s1, before use, an operator can input the working modes of the lithium battery, the fuel power generation system and the super capacitor corresponding to each acceleration with different values to the central processing unit through the wireless control panel to serve as the preset working mode of the ship, and the acceleration sensor can detect the real-time acceleration value of the ship to serve as a detection value;

s2, when the system is used, the acceleration sensor transmits the real-time acceleration value of the ship to the data comparator, the data comparator transmits the acceleration value to the central processing unit through the feedback module, and the corresponding working mode of each acceleration preset through the wireless control panel before the system is used is transmitted to the data comparator through the central processing unit, so that the central processing unit coordinates the lithium battery, the fuel power generation system and the super capacitor in real time;

s3, when the fuel power generation system is started, the range-extended power generation module generates power, at the moment, the current distribution module preferentially transmits the current required by the ship driving module, and then transmits the residual current to the lithium battery and the super capacitor respectively, so that the lithium battery and the super capacitor can be charged;

and S4, when the ship runs off-shore, most of electric energy of the lithium battery and the super capacitor is from a renewable energy charging module in the charging system, the renewable energy charging module mainly generates electricity through wind power and wind energy, and when the ship is charged on-shore, the lithium battery and the super capacitor are comprehensively charged from the renewable energy charging module and the shore power module.

2. A method of energy management and control of a hybrid marine electric propulsion system according to claim 1, characterized by: the wireless control panel presets the principle and for when acceleration a is less than or equal to 0, its working method is that the lithium cell unilateral supplies power for boats and ships drive module, when the interval value of acceleration a is 0-3 meters per square second, its theory of operation is that lithium cell and super capacitor cooperate and work, when acceleration a value is greater than 3 meters per square second, its theory of operation is that lithium cell, fuel power generation system and super capacitor work simultaneously, when boats and ships start, its theory of operation also is that lithium cell, fuel power generation system and super capacitor work simultaneously.

3. A method of energy management and control of a hybrid marine electric propulsion system according to claim 1, characterized by: when the current distribution module is used for current distribution, the principle is that the generated energy of the range-extending power generation module is preset to be C1, the energy transmitted to the ship driving module is C2, the residual energy is C1-C2-C3, the residual C3 can be transmitted to a lithium battery and a super capacitor, C3 can be divided into e1 and e2 which are respectively transmitted to the lithium battery and the super capacitor, and e1 is larger than e 2.

4. A method of energy management and control of a hybrid marine electric propulsion system according to claim 1, characterized by: the output of energy management distribution system is connected with lithium cell, fuel power generation system and ultracapacitor system's input respectively, fuel power generation system's output is connected with lithium cell and ultracapacitor system's input respectively, lithium cell, fuel power generation system and ultracapacitor system's output all is connected with boats and ships drive module's input, charging system's output is connected with lithium cell and ultracapacitor system's input respectively.

5. A method of energy management and control of a hybrid marine electric propulsion system according to claim 1, characterized by: the energy management distribution system comprises a wireless control panel, an acceleration sensor, a data comparator, a central processing unit and a feedback module.

6. A method of energy management and control of a hybrid marine electric propulsion system according to claim 1, characterized by: the output end of the acceleration sensor is connected with the input end of the data comparator, the output end of the data comparator is connected with the input end of the feedback module, the output end of the feedback module is connected with the input end of the central processing unit, the output end of the central processing unit is connected with the input end of the data comparator, the output end of the wireless control panel is connected with the input end of the central processing unit, and the output end of the central processing unit is respectively connected with the input ends of the lithium battery, the fuel power generation system and the super capacitor.

7. A method of energy management and control of a hybrid marine electric propulsion system according to claim 1, characterized by: the fuel power generation system comprises an extended-range power generation module, a current distribution module and a shunt transmission module, wherein the output end of the extended-range power generation module is connected with the input end of the current distribution module, the output end of the current distribution module is connected with the input end of the shunt transmission module, the output end of the shunt transmission module is connected with the input ends of a lithium battery, a ship driving module and a super capacitor respectively, and the input end of the extended-range power generation module is connected with the output end of a central processing unit.

8. A method of energy management and control of a hybrid marine electric propulsion system according to claim 1, characterized by: the charging system comprises a renewable energy charging module and a shore power module.

Technical Field

The invention relates to the technical field of ship operation energy management, in particular to an energy management and control method of a hybrid power ship electric propulsion system.

Background

The hybrid power ship propulsion system can fully utilize the stored energy of diesel-electric power generation, wind energy, solar energy and a storage battery, can save fuel and reduce operation cost, and is a ship energy comprehensive optimization utilization system with a great development prospect. The hybrid electric propulsion system is the latest technology for solving the energy conservation and emission reduction of ships, is the combination of diesel electric propulsion and pure electric propulsion, applies renewable energy technologies such as light energy and wind energy, and the key core and hub of the technology are energy management and control strategies.

The hybrid power ship energy management system has the characteristics of complex structure and wide use of nonlinear power electronic equipment, and is a nonlinear system integrating mechanical, electrical, chemical and thermodynamic systems.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides an energy management and control method of a hybrid power ship electric propulsion system, and solves the problems that the energy management of the hybrid power ship electric propulsion system is complex, good energy conservation is not achieved, and the operation cost is reduced.

In order to achieve the purpose, the invention is realized by the following technical scheme: an energy management and control method of a hybrid ship electric propulsion system specifically comprises the following steps:

s1, before use, an operator can input the working modes of the lithium battery, the fuel power generation system and the super capacitor corresponding to each acceleration with different values to the central processing unit through the wireless control panel to serve as the preset working mode of the ship, and the acceleration sensor can detect the real-time acceleration value of the ship to serve as a detection value;

s2, when the system is used, the acceleration sensor transmits the real-time acceleration value of the ship to the data comparator, the data comparator transmits the acceleration value to the central processing unit through the feedback module, and the corresponding working mode of each acceleration preset through the wireless control panel before the system is used is transmitted to the data comparator through the central processing unit, so that the central processing unit coordinates the lithium battery, the fuel power generation system and the super capacitor in real time;

s3, when the fuel power generation system is started, the range-extended power generation module generates power, at the moment, the current distribution module preferentially transmits the current required by the ship driving module, and then transmits the residual current to the lithium battery and the super capacitor respectively, so that the lithium battery and the super capacitor can be charged;

and S4, when the ship runs off-shore, most of electric energy of the lithium battery and the super capacitor is from a renewable energy charging module in the charging system, the renewable energy charging module mainly generates electricity through wind power and wind energy, and when the ship is charged on-shore, the lithium battery and the super capacitor are comprehensively charged from the renewable energy charging module and the shore power module.

Preferably, the wireless control panel presets the principle that when the acceleration a is smaller than or equal to 0, the working mode of the wireless control panel supplies power to the ship driving module unilaterally by the lithium battery, when the interval value of the acceleration a is 0-3 meters per square second, the working principle of the wireless control panel is that the lithium battery and the super capacitor work in a matched mode, when the interval value of the acceleration a is larger than 3 meters per square second, the working principle of the wireless control panel is that the lithium battery, the fuel power generation system and the super capacitor work simultaneously, and when the ship starts, the working principle of the wireless control panel also works simultaneously by the lithium battery, the fuel power generation system and the super capacitor.

Preferably, when the current distribution module performs current distribution, the principle is that the generated energy of the range-extended power generation module is preset to be C1, the energy transmitted to the ship driving module is C2, so that the remaining energy is C1-C2 ═ C3, so that the remaining C3 can be transmitted to the lithium battery and the super capacitor, and the C3 can be shunted to be e1 and e2 to be transmitted to the lithium battery and the super capacitor respectively, wherein e1 is greater than e 2.

Preferably, the output of energy management distribution system is connected with the input of lithium cell, fuel power generation system and ultracapacitor system respectively, the output of fuel power generation system is connected with the input of lithium cell and ultracapacitor system respectively, the output of lithium cell, fuel power generation system and ultracapacitor system all is connected with the input of boats and ships drive module, charging system's output is connected with the input of lithium cell and ultracapacitor system respectively.

Preferably, the energy management distribution system comprises a wireless control panel, an acceleration sensor, a data comparator, a central processing unit and a feedback module.

Preferably, the output end of the acceleration sensor is connected with the input end of the data comparator, the output end of the data comparator is connected with the input end of the feedback module, the output end of the feedback module is connected with the input end of the central processing unit, the output end of the central processing unit is connected with the input end of the data comparator, the output end of the wireless control panel is connected with the input end of the central processing unit, and the output end of the central processing unit is respectively connected with the input ends of the lithium battery, the fuel power generation system and the super capacitor.

Preferably, the fuel power generation system comprises a range-extended power generation module, a current distribution module and a shunt transmission module, wherein the output end of the range-extended power generation module is connected with the input end of the current distribution module, the output end of the current distribution module is connected with the input end of the shunt transmission module, the output end of the shunt transmission module is respectively connected with the input ends of a lithium battery, a ship driving module and a super capacitor, and the input end of the range-extended power generation module is connected with the output end of a central processing unit.

Preferably, the charging system comprises a renewable energy charging module and a shore power module.

Advantageous effects

The invention provides an energy management and control method of an electric propulsion system of a hybrid power ship. Compared with the prior art, the method has the following beneficial effects:

(1) the energy management and control method of the hybrid power ship electric propulsion system is characterized in that the output end of the acceleration sensor is connected with the input end of the data comparator, the output end of the data comparator is connected with the input end of the feedback module, the output end of the feedback module is connected with the input end of the central processing unit, the output end of the central processing unit is connected with the input end of the data comparator, the output end of the wireless control panel is connected with the input end of the central processing unit, the output end of the central processing unit is respectively connected with the input ends of the lithium battery, the fuel power generation system and the super capacitor, the acceleration of the ship is monitored in real time through the acceleration sensor, different preset working modes are switched according to different accelerations, on the premise of ensuring low calculation amount and simple operation, the method specifically has stronger robustness and better real-time property, and reduces the operation cost to a great extent.

(2) This hybrid power boats and ships electric propulsion system's energy management and control method, output through fuel power generation system is connected with lithium cell and super capacitor's input respectively, the lithium cell, fuel power generation system and super capacitor's output all is connected with boats and ships drive module's input, charging system's output is connected with lithium cell and super capacitor's input respectively, adopt the lithium cell, three kinds of energy of fuel power generation and super capacitor provide the mode, can carry out the switching and the cooperation of multiple energy supply mode, power demand for boats and ships difference provides the appropriate energy supply combination, the loss of energy consumption has been reduced to the utmost.

(3) The energy management and control method of the hybrid power ship electric propulsion system comprises an extended range power generation module, a current distribution module and a shunt transmission module through a fuel power generation system, wherein the output end of the extended range power generation module is connected with the input end of the current distribution module, the output end of the current distribution module is connected with the input end of the shunt transmission module, the output end of the shunt transmission module is respectively connected with a lithium battery, a ship driving module and the input end of a super capacitor, the input end of the extended range power generation module is connected with the output end of a central processing unit, when the fuel power generation system operates, the electric energy is directly supplied to the ship driving module, the energy utilization rate is improved, meanwhile, redundant electric energy is supplied to the lithium battery and the super capacitor, and the generated energy generated by fuel power generation is utilized to the maximum degree.

Drawings

FIG. 1 is a schematic block diagram of the architecture of the system of the present invention;

FIG. 2 is a schematic block diagram of the energy management distribution system of the present invention;

FIG. 3 is a schematic block diagram of the construction of the fuel power generation system of the present invention;

fig. 4 is a schematic block diagram of the charging system according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an energy management and control method of a hybrid ship electric propulsion system specifically comprises the following steps:

s1, before use, an operator can input the working modes of the lithium battery, the fuel power generation system and the super capacitor corresponding to each acceleration with different values to the central processing unit through the wireless control panel to serve as the preset working mode of the ship, and the acceleration sensor can detect the real-time acceleration value of the ship to serve as a detection value;

s2, when the system is used, the acceleration sensor transmits the real-time acceleration value of the ship to the data comparator, the data comparator transmits the acceleration value to the central processing unit through the feedback module, and the corresponding working mode of each acceleration preset through the wireless control panel before the system is used is transmitted to the data comparator through the central processing unit, so that the central processing unit coordinates the lithium battery, the fuel power generation system and the super capacitor in real time;

s3, when the fuel power generation system is started, the range-extended power generation module generates power, at the moment, the current distribution module preferentially transmits the current required by the ship driving module, and then transmits the residual current to the lithium battery and the super capacitor respectively, so that the lithium battery and the super capacitor can be charged;

and S4, when the ship runs off-shore, most of electric energy of the lithium battery and the super capacitor is from a renewable energy charging module in the charging system, the renewable energy charging module mainly generates electricity through wind power and wind energy, and when the ship is charged on-shore, the lithium battery and the super capacitor are comprehensively charged from the renewable energy charging module and the shore power module.

According to the invention, the preset principle of the wireless control panel is that when the acceleration a is less than or equal to 0, the lithium battery supplies power to the ship driving module unilaterally in a working mode, when the interval value of the acceleration a is 0-3 meters per square second, the lithium battery and the super capacitor work in a matching mode in a working principle, when the value of the acceleration a is more than 3 meters per square second, the lithium battery, the fuel power generation system and the super capacitor work simultaneously in a working principle, and when the ship starts, the lithium battery, the fuel power generation system and the super capacitor work simultaneously in a working principle.

In the invention, when the current distribution module carries out current distribution, the principle is that the generated energy of the range-extended power generation module is preset to be C1, the energy transmitted to the ship driving module is C2, so that the residual energy is C1-C2-C3, so that the residual C3 can be transmitted to a lithium battery and a super capacitor, C3 can be shunted to be e1 and e2 which are respectively transmitted to the lithium battery and the super capacitor, and e1 is more than e 2.

In the invention, the output end of the energy management distribution system is respectively connected with the input ends of the lithium battery, the fuel power generation system and the super capacitor, the output end of the fuel power generation system is respectively connected with the input ends of the lithium battery and the super capacitor, the output ends of the lithium battery, the fuel power generation system and the super capacitor are respectively connected with the input end of the ship driving module, and the output end of the charging system is respectively connected with the input ends of the lithium battery and the super capacitor.

The energy management distribution system comprises a wireless control panel, an acceleration sensor, a data comparator, a central processing unit and a feedback module.

In the invention, the output end of the acceleration sensor is connected with the input end of the data comparator, the output end of the data comparator is connected with the input end of the feedback module, the output end of the feedback module is connected with the input end of the central processing unit, the output end of the central processing unit is connected with the input end of the data comparator, the output end of the wireless control panel is connected with the input end of the central processing unit, and the output end of the central processing unit is respectively connected with the input ends of the lithium battery, the fuel power generation system and the super capacitor.

The fuel power generation system comprises a range-extended power generation module, a current distribution module and a shunt transmission module, wherein the output end of the range-extended power generation module is connected with the input end of the current distribution module, the output end of the current distribution module is connected with the input end of the shunt transmission module, the output end of the shunt transmission module is respectively connected with the input ends of a lithium battery, a ship driving module and a super capacitor, and the input end of the range-extended power generation module is connected with the output end of a central processing unit.

The charging system comprises a renewable energy charging module and a shore power module.

And those not described in detail in this specification are well within the skill of those in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.