CN114379535A - Output control method and device for oil-electricity hybrid power system - Google Patents

Output control method and device for oil-electricity hybrid power system Download PDF

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CN114379535A
CN114379535A CN202210079457.0A CN202210079457A CN114379535A CN 114379535 A CN114379535 A CN 114379535A CN 202210079457 A CN202210079457 A CN 202210079457A CN 114379535 A CN114379535 A CN 114379535A
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power
battery
distribution coefficient
output
engine
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CN114379535B (en
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潘天宇
李秋实
赵洋
李志平
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Beihang University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0677—Engine power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B60W2710/086—Power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/24—Energy storage means
    • B60W2710/242—Energy storage means for electrical energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application discloses output control method and device for a gasoline-electric hybrid power system, and the method comprises the following steps: determining the numerical value of the output power of the oil-electricity hybrid power system at each time point in a time interval; according to the output power, with the minimum fuel consumption as an optimization target, distributing the engine output power and the battery discharge power of the oil-electricity hybrid power system, determining the distribution coefficient of the engine output power, the battery charge power and the distribution coefficient of the battery discharge power, and determining the distribution coefficient of the charge power and the distribution coefficient of the discharge power according to the residual electric quantity of the battery; and regulating the output power of the engine, the charging power of the battery and the discharging power of the battery. According to the technical scheme provided by the application, the distribution coefficient of the charging power of the battery and the distribution coefficient of the discharging power of the battery are determined according to the residual electric quantity of the battery, and the technical problem that the advantages of the oil-electricity hybrid power system cannot be fully played due to the fact that the distribution coefficients are fixed is solved.

Description

Output control method and device for oil-electricity hybrid power system
Technical Field
The application relates to the technical field of power system energy optimization, in particular to an output control method and device of a gasoline-electric hybrid power system.
Background
The fuel engine has the advantages of high fuel energy density and strong load capacity, and is always taken as a preferred scheme of various power systems. With the popularization of new energy power systems, motors gradually become another scheme of the power systems. The efficiency of the motor is high, but the energy density of a matched battery is low, a pure electric power system is difficult to operate for a long time, and the cruising ability is poor. Therefore, the technical scheme of the oil-electricity hybrid power system is provided in engineering practice, the oil-electricity hybrid power system has the advantages of high flexibility, high efficiency, fuel saving and the like, and the energy utilization rate of the power system can be better improved on the basis of ensuring certain endurance.
In order to enable the oil-electricity hybrid power system to exert the greatest advantages, an output control method of the oil-electricity hybrid power system needs to be established. The existing control method fixes the distribution coefficient of the charging power and the distribution coefficient of the discharging power of the battery, and cannot fully exert the advantages of the oil-electricity hybrid power system.
Disclosure of Invention
Object of the application
One of the objectives of the present application is to provide an output control method and apparatus for a hybrid power system, which optimize a distribution coefficient of battery charging power and a distribution coefficient of battery discharging power according to an output power requirement of the hybrid power system.
(II) technical scheme
According to an embodiment, a first aspect of the present application provides a gasoline-electric hybrid system output control method including: determining the numerical value of the output power of the oil-electricity hybrid power system at each time point in a time interval; according to the output power, with the minimum fuel consumption as an optimization target, distributing the engine output power and the battery discharge power of the oil-electricity hybrid power system, determining the distribution coefficient of the engine output power, the battery charge power and the distribution coefficient of the battery discharge power, and determining the distribution coefficient of the charge power and the distribution coefficient of the discharge power according to the residual electric quantity of the battery; the battery discharges to provide energy for the motor, the engine drives the generator to generate power and output power by consuming fuel oil, and the generator provides energy for the motor and charges the battery; and regulating the output power of the engine, the charging power of the battery and the discharging power of the battery.
In one embodiment, the distribution coefficient of the charging power and the distribution coefficient of the discharging power are in a linear relation with the remaining capacity of the battery.
In one embodiment, the step of determining the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power comprises: and calculating the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power by adopting a particle swarm optimization algorithm with the minimum fuel consumption as an optimization target.
According to an embodiment, a second aspect of the present application provides a gasoline-electric hybrid system output control apparatus including: the output determining module is used for determining the numerical value of the output power of the oil-electric hybrid power system at each time point in a time interval; the power distribution module is used for distributing the output power of an engine and the discharge power of a battery of the oil-electricity hybrid power system according to the output power by taking the minimum fuel consumption as an optimization target, determining the distribution coefficient of the output power of the engine, the charge power of the battery and the discharge power of the battery, determining the distribution coefficient of the charge power and the discharge power of the battery according to the residual electric quantity of the battery, discharging the battery to provide energy for the motor, driving the generator to generate the output power by consuming the fuel by the engine, providing energy for the motor by the generator, and charging the battery; and the adjusting module is used for adjusting the output power of the engine, the charging power of the battery and the discharging power of the battery.
In one embodiment, the power distribution module is further configured to: the distribution coefficient of the charging power and the distribution coefficient of the discharging power are in linear relation with the residual capacity of the battery.
In one embodiment, the power distribution module is further configured to: and calculating the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power by adopting a particle swarm optimization algorithm with the minimum fuel consumption as an optimization target.
According to an embodiment, in a third aspect of the present application, there is provided an aircraft employing a hybrid power system controlled using the method provided in the first aspect of the present application.
(III) advantageous effects
The technical scheme of the application has the following beneficial technical effects: according to the residual electric quantity of the battery, the distribution coefficient of the charging power and the distribution coefficient of the discharging power of the battery are determined, and the technical problem that the advantages of the oil-electricity hybrid power system cannot be fully exerted due to the fact that the distribution coefficients are fixed is solved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
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In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art will be briefly described below, and it is obvious that the drawings in the following description are one embodiment of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart of an output control method of a hybrid power system according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of the system output power requirement of the output control method of the hybrid power system according to the embodiment of the present application;
FIG. 3(a) is a schematic diagram of fuel consumption during operation of a prior art hybrid power system;
FIG. 3(b) is a schematic diagram illustrating the change of battery capacity during the operation of a hybrid power system according to the prior art;
FIG. 3(c) is a schematic diagram of engine power variation during operation of a prior art hybrid powertrain system;
FIG. 4(a) is a schematic diagram of fuel consumption during operation of a hybrid power system according to an embodiment of the present application;
fig. 4(b) is a schematic diagram illustrating a change in battery capacity during operation of the hybrid power system according to the embodiment of the present application;
FIG. 4(c) is a schematic diagram illustrating the change of the engine power during the operation of the hybrid power system according to the embodiment of the present application;
fig. 5 is a schematic structural diagram of an output control device of a hybrid electric-oil system according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with the detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present application. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present application.
Fig. 1 is a flow chart of an output control method of a hybrid power system according to an embodiment of the present application.
As shown in fig. 1, this method embodiment includes the following three steps.
Step S101: and determining the output power of the oil-electric hybrid power system. Specifically, the numerical value of the output power of the oil-electric hybrid power system at each time point in a time interval is determined. For example, the output power of the gasoline-electric hybrid system may be determined according to the tasks of the system, for example, according to the working conditions of the system, and the output power of each stage is determined.
Fig. 2 is a schematic diagram of system output power requirements of an output control method of a hybrid electric-oil power system according to an embodiment of the present application.
Exemplarily, referring to fig. 2, a power value of the hybrid system is schematically shown in an operating region of 0-3000 seconds, wherein the output power is 70KW in a start stage and an end stage, and the output power is 35KW in an operation stage.
Step S102: and determining the distribution coefficient of the output power of the engine, the charging power of the battery and the discharge power of the battery. Specifically, according to the output power, with the minimum fuel consumption as an optimization target, the engine output power and the battery discharge power of the oil-electricity hybrid power system are distributed, the distribution coefficient of the engine output power, the battery charge power and the distribution coefficient of the battery discharge power are determined, and the distribution coefficient of the charge power and the distribution coefficient of the discharge power are determined according to the residual electric quantity of the battery; the battery discharges to provide energy for the motor, the engine drives the generator to generate output power by consuming fuel oil, and the generator provides energy for the motor and charges the battery.
It should be noted that both the generator and the battery can provide power for the motor. The engine output power, without time to loss, is approximately equal to the generator output power. When the output power of the generator is larger than the power required by the motor, the generator can simultaneously provide energy for the motor and charge the battery.
FIG. 3(a) is a schematic diagram of fuel consumption during operation of a prior art hybrid power system; FIG. 3(b) is a schematic diagram illustrating the change of battery capacity during the operation of a hybrid power system according to the prior art; fig. 3(c) is a schematic diagram of the change of engine power during the operation of the prior art gasoline-electric hybrid system.
Referring to fig. 3(a) -3 (c), the distribution coefficient of the charging power and the distribution coefficient of the discharging power of the battery in the related art are fixed values. As shown in fig. 3(a), the total fuel consumption during the system operation is close to 14 Kg. As shown in fig. 3(b), the charge of the battery is greatly reduced in the initial stage and the final stage of the system operation, and the charge of the battery is not changed in the system operation stage. As can be seen from fig. 3(c), during the operating phase of the system, the engine is in the operating phase, and the output power varies back and forth over two values, 30KW and 45 KW. The output of the system is now 35KW, and in this interval there is also charging and discharging of the battery, for example 5KW at an engine output of 30 KW. On the other hand, when the engine output is 45KW, for example, the generator charges the battery, and the amount of electricity obtained by charging the battery is equal to the amount of electricity consumed by discharging the battery, so that the amount of electricity of the battery does not change during the operation of the system. The distribution coefficient of the charging power and the distribution coefficient of the discharging power of the battery are fixed, the distribution of the charging power and the discharging power of the battery cannot be dynamically adjusted, the working conditions of the engine are frequently switched, and the advantages of the oil-electricity hybrid power system cannot be fully exerted.
It should be noted that the power output of the engine is not continuously adjustable, and the power output of the engine is switched between various operating points. When the output power of the engine is determined, the output power working point of the engine with the value close to the value of the output power of the oil-electric hybrid power system can be selected according to the value of the output power of the oil-electric hybrid power system.
Illustratively, with the minimum fuel consumption as an optimization goal, the following optimization function is established:
Figure BDA0003485510350000051
wherein, Jmin(t) is the objective function value; m iseIs the fuel consumption of the engine in unit time, and the dimension is g/s; h is the fuel calorific value, and the dimension is J/kg; s1 and s2 are equivalent fuel factors, s1 represents a battery discharge power distribution coefficient, and s2 represents a battery charge power distribution coefficient; pe(t) the output power of the engine at the moment t, and the dimension is kw; pm(t) the discharge power of the battery at a certain time, with dimension kw; pcAnd (t) is the battery charging power at the time t, and the dimension is kw.
The optimization function value refers to the law that the system output power distribution follows in the whole process of operating the oil-electric hybrid power system. At any moment, the basis of the output power distribution is to distribute the energy with the minimum value of the objective function value, namely, the fuel distribution with the minimum equivalent fuel consumption is carried out.
It should be noted that, in the output power distribution process of the oil-electric hybrid power system, the core task is to optimize the engine operation condition so that the engine operates at a higher efficiencyWorking condition point, and oil quantity is saved, and the change of the oil quantity can be directly obtained from experimental data and directly quantified as meThe unit is g/s. The change in the amount of electricity can be determined by the power consumed by the motor, in kw. At a certain moment, the oil consumption of the engine is related to the discharge power of the battery, and the units of the oil consumption and the discharge power of the battery need to be unified, so that the concept of an equivalent fuel factor is introduced, and the unit of oil consumption and electric energy consumption is unified by using the combined action of the heat value of the fuel and the fuel factor. The fuel calorific value is a fixed constant, the core problem of constructing an equivalent fuel minimum control strategy is to search the values of equivalent fuel factors s1 and s2, and the values of s1 and s2 determine the distribution of energy at any moment, namely the distribution of battery charging power and battery discharging power at any moment.
Illustratively, the values of s1, s2 may be optimized by an optimization algorithm.
In one embodiment, the distribution coefficient of the charging power and the distribution coefficient of the discharging power are in a linear relation with the remaining capacity of the battery.
Illustratively, the relation of s1 and s2 with the remaining battery capacity SOC is:
s1(t)＝k1*SOC+b1
s2(t)＝k2*SOC+b2
wherein k is1,k2,b1,b2For unknown coefficients, k is optimized1,k2,b1,b2And (6) solving.
In one embodiment, the step of determining the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power comprises: and calculating the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power by adopting a particle swarm optimization algorithm with the minimum fuel consumption as an optimization target.
Illustratively, k is optimized by a particle swarm optimization algorithm1,k2,b1,b2And (6) solving.
FIG. 4(a) is a schematic diagram of fuel consumption during operation of a hybrid power system according to an embodiment of the present application; fig. 4(b) is a schematic diagram illustrating a change in battery capacity during operation of the hybrid power system according to the embodiment of the present application; fig. 4(c) is a schematic diagram of engine power variation during operation of the hybrid power system according to the embodiment of the present application.
As shown in fig. 4(a), the total fuel consumption during the operation of the system is about 12Kg, which is reduced by more than 10% compared to the fuel consumption in fig. 3 (a). As shown in fig. 4(b), the charge of the battery decreases relatively quickly in the initial stage and the final stage of the system operation, and the charge of the battery decreases relatively slowly in the system operation stage. As can be seen from fig. 4(c), the output power of the engine is stabilized at 30KW during the operation phase of the system. The distribution of the battery charging power and the battery discharging power is carried out according to the residual electric quantity of the battery, so that the engine is stabilized at the working condition point of 30 KW. At the beginning of the system operation, no substantial step in engine output power of fig. 3(c) occurs. The working condition of the engine is optimized, the fuel consumption is reduced, and the technical problem that the advantages of the oil-electricity hybrid power system cannot be fully exerted due to the fixed distribution coefficient is solved.
Step S103: and regulating the output power of the engine, the charging power of the battery and the discharging power of the battery. Specifically, the engine output power, the battery charging power, and the battery discharging power are adjusted based on the distribution coefficient obtained in step S102.
Fig. 5 is a schematic structural diagram of an output control device of a hybrid electric-oil system according to an embodiment of the present application.
The embodiment of the application provides an output control device of a hybrid power system, which is mainly used for executing the output control method of the hybrid power system provided by the embodiment of the application, and the output control device of the hybrid power system provided by the embodiment of the application is specifically described below.
As shown in fig. 5, the output control device 200 of the hybrid system includes the following modules:
the output determining module 201 is used for determining the numerical value of the output power of the oil-electric hybrid power system at each time point in a time interval;
the power distribution module 202 is used for distributing the engine output power and the battery discharge power of the oil-electricity hybrid power system according to the output power by taking the minimum fuel consumption as an optimization target, determining the distribution coefficient of the engine output power, the battery charge power and the distribution coefficient of the battery discharge power, determining the distribution coefficient of the charge power and the distribution coefficient of the discharge power according to the residual electric quantity of the battery, discharging the battery to provide energy for the motor, driving the generator to generate the output power by consuming the fuel, providing energy for the motor by the generator, and charging the battery;
and the adjusting module 203 is used for adjusting the output power of the engine, the charging power of the battery and the discharging power of the battery.
In one embodiment, the power distribution module 202 is further configured to: the distribution coefficient of the charging power and the distribution coefficient of the discharging power are in linear relation with the residual capacity of the battery.
In one embodiment, the power distribution module 202 is further configured to: and calculating the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power by adopting a particle swarm optimization algorithm with the minimum fuel consumption as an optimization target.
The embodiment of the application further provides an aircraft, wherein the oil-electricity hybrid power system is adopted and is controlled by the method provided by the embodiment.
It is to be understood that the above-described embodiments of the present application are merely illustrative of or illustrative of the principles of the present application and are not to be construed as limiting the present application. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. Further, it is intended that the appended claims cover all such changes and modifications that fall within the scope and range of equivalents of the appended claims, or the equivalents of such scope and range.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes the following procedures for implementing the embodiments of the methods as described above. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a Random Access Memory (RAM), or the like.
The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs. The modules in the system device of the embodiment of the application can be merged, divided and deleted according to actual needs.

Claims (7)

1. An output control method of a gasoline-electric hybrid power system is characterized by comprising the following steps:
determining the numerical value of the output power of the oil-electricity hybrid power system at each time point in a time interval;
according to the output power, with the minimum fuel consumption as an optimization target, distributing the engine output power and the battery discharge power of the oil-electricity hybrid power system, and determining the distribution coefficient of the engine output power, the battery charge power and the battery discharge power, wherein the distribution coefficient of the charge power and the distribution coefficient of the discharge power are determined according to the residual electric quantity of the battery;
the battery discharges to provide energy for the motor, the engine drives the generator to generate power and output power by consuming fuel oil, and the generator provides energy for the motor and charges the battery;
and regulating the output power of the engine, the charging power of the battery and the discharging power of the battery.
2. The method of claim 1, wherein the distribution coefficient of the charging power and the distribution coefficient of the discharging power are linear with respect to the remaining battery capacity.
3. The method of claim 1, wherein determining the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power comprises:
and calculating the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power by adopting a particle swarm optimization algorithm with the minimum fuel consumption as an optimization target.
4. An output control device for a gasoline-electric hybrid power system, characterized by comprising:
the output determining module is used for determining numerical values of the output power of the oil-electric hybrid power system at each time point in a time interval;
the power distribution module is used for distributing the output power of an engine and the discharge power of a battery of the oil-electricity hybrid power system according to the output power by taking the minimum fuel consumption as an optimization target, determining the distribution coefficient of the output power of the engine, the charge power of the battery and the discharge power of the battery, determining the distribution coefficient of the charge power and the discharge power of the battery according to the residual electric quantity of the battery, discharging the battery to provide energy for a motor, driving a generator to generate the output power by consuming the fuel by the engine, providing energy for the motor by the generator, and charging the battery;
and the adjusting module is used for adjusting the output power of the engine, the charging power of the battery and the discharging power of the battery.
5. The apparatus of claim 4, wherein the power distribution module is further configured to: and the distribution coefficient of the charging power and the distribution coefficient of the discharging power are in linear relation with the residual electric quantity of the battery.
6. The apparatus of claim 4, wherein the power distribution module is further configured to: and calculating the distribution coefficient of the battery charging power and the distribution coefficient of the battery discharging power by adopting a particle swarm optimization algorithm with the minimum fuel consumption as an optimization target.
7. An aircraft employing a hybrid fuel-electric system, wherein the hybrid fuel-electric system is controlled using the method of any one of claims 1 to 3.
CN202210079457.0A 2022-01-24 2022-01-24 Output control method and device for oil-electricity hybrid power system Active CN114379535B (en)

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