Stabilization of the load mode of the internal combustion engine of the tractor through the use of a hybrid power plant

2020 ◽  
Vol 1 (1) ◽  
pp. 3-9
Author(s):  
V.A. Rakov ◽  
◽  
V.I. Litvinov ◽  
2018 ◽  
Vol 19 (10) ◽  
pp. 627-632
Author(s):  
A. A. Kolesnikov ◽  
S. D. Kaliy ◽  
I. A. Radionov ◽  
O. I. Yakimenko

The problem of control of a hybrid power plant of a car consisting of an internal combustion engine, a synchronous electric motor with permanent magnets and a synchronous generator is considered. The formation of the control effect is carried out taking into account the connection of the above objects with each other with the help of planetary transmission. The mathematical models of the three listed engines are nonlinear with several control channels. In addition, the principle of the hybrid power plant requires the simultaneous operation of these engines and, accordingly, the construction of the necessary interrelated control actions. To synthesize the laws of vector control of a hybrid power plant, the method of analytical construction of aggregated regulators (ADAR) is used. Within the framework of this method, it is possible to work with a complete nonlinear control object model. Unlike the traditional approach of constructing a separate stabilizing control for each control channel, this method uses co-control over all variables to transfer the object to the desired state. In this case,for a number of variants of control algorithms, the communication between the control channels is carried out not indirectly, through the control object, but directly formed in the regulator. In addition, the control law takes into account unknown external disturbances, which were compensated using the principle of integral adaptation. In this paper, one of the modes of operation of a hybrid power plant is shown during the acceleration of the car. First, only the electric motor works, as the car accelerates, the internal combustion engine is connected, and at high speeds only the internal combustion engine works. This mode of operation of the hybrid power plant allows using both engines in the most convenient range of angular speeds, which leads to an economical fuel consumption and a charge of the storage batteries. In addition, the second electric motor operates in the generator mode and transfers a part of the mechanical moment to recharge the batteries.


2019 ◽  
Vol 19 (1) ◽  
pp. 309-405
Author(s):  
О. Mykhalskyi ◽  
D. Fokin ◽  
S. Kiriakov

This article discusses the problematic issues of the study of the characteristics of wheeled plug-in hybrid electric vehicles (PHEVs) in accordance with the requirements of the Ukrainian classification of goods of foreign economic activity. Existing types of hybrid power plants are considered. We consider the problems that are solved by experts in automotive industry in the study of wheeled vehicles with hybrid power plants. Problems of determining the type of hybrid power plant of a wheeled vehicle, the principle of its operation, and, consequently, the influence of this on the determination of the code according to the UKT ZED (Ukrainian Classification of Goods for Foreign Economic Activity) are considered. Currently, in expert practice, there is no single approach in carrying out research to determine which characteristics the wheeled vehicle meets according to the Ukrainian Classifier of Goods of Foreign Economic Activity. In this article the main types and types of hybrid power units, the principles of their operation and the effect on the definition of the code under the UKT ZED are given. In relation to wheeled vehicles to one or another code under the UKT ZED it is necessary to determine the scheme of the operation of the hybrid power plant. In this case, hybrid power units operating on a parallel and serially parallel circuit should be classified in the code of code 8703 2 "Other vehicles with spark ignition internal combustion engine and crankshaft coupling" or 8703 3 "Other vehicles from an internal combustion engine with compression ignition (diesel or semi-diesel), and hybrid power plants that operate in a sequential scheme to the code number 8703 90 90 00 "other" as not falling under the requirements of the other the position of the booty on the principle of its work.


2011 ◽  
Vol 328-330 ◽  
pp. 2207-2210
Author(s):  
Xiao Jing Sun ◽  
Xing Gui Wang ◽  
Chun Ning Wang

The Internal Combustion Engine Power Plant and Flywheel Battery were the two primarily compositive units of the Internal Combustion Engine Power Plant --Rotary UPS, among them the Internal Combustion Engine Power Plant ensured the continuous power supply to the load after the breaking of the mains supply, the Flywheel Battery ensured the uninterruptible continuous power supply to the load when mains supply switched to the Internal Combustion Engine Power Plant, so the paper started with the two units, Introduced the control system structure and principle, and focused on discussing the method of achieving the Internal Combustion Engine Power Plant --Rotary UPS telecommunication by Ethernet. The method had been applied in correlative production. The practice showed that it was convenient for usage and high reliability.


2021 ◽  
Vol 18 (1) ◽  
pp. 12-29
Author(s):  
V. N. Kuznetsova ◽  
R. V. Romanenko

Introduction. The use of an electromechanical transmission in the design of a tracked vehicle allows an increase in the complex indicator of mobility, an increase in the range, fuel efficiency, maximum speed, a decrease in acceleration time, etc. The improvement of these indicators is achieved mainly due to the different performance characteristics of the internal combustion engine and the energy characteristics of electrical machines. The latter fact makes it possible to ensure the operation of the power plant of the tracked vehicle in such a way as to avoid unfavorable operating modes of both the internal combustion engine and the elements of the electromechanical transmission (a generator, a traction electric motor, an energy storage) from the point of view of energy efficiency, and to realize the high efficiency of the entire system.Research methods. To improve the mobility and implement a rational strategy for electromechanical transmission control, it is necessary to have an idea of the effective modes of operation of the main elements of the power plant. As a way to solve this problem it is proposed to study the energy characteristics of the main elements of an electromechanical transmission using the developed mathematical model for various modes of movement of a tracked vehicle.Results. Modeling the motion of a tracked vehicle with an electromechanical transmission makes it possible, in addition to determining the transmission parameters, to formulate preliminary requirements for its characteristics.Discussion and conclusion. To solve these problems, it is necessary to simulate the process of movement of a tracked vehicle, taking into account the initial data that are adequate to real operating conditions.


2020 ◽  
Vol 24 (1) ◽  
pp. 669-680
Author(s):  
Aiman Albatayneh ◽  
Mohammad N. Assaf ◽  
Dariusz Alterman ◽  
Mustafa Jaradat

Abstract The tremendous growth in the transportation sector as a result of changes in our ways of transport and a rise in the level of prosperity was reflected directly by the intensification of energy needs. Thus, electric vehicles (EV) have been produced to minimise the energy consumption of conventional vehicles. Although the EV motor is more efficient than the internal combustion engine, the well to wheel (WTW) efficiency should be investigated in terms of determining the overall energy efficiency. In simple words, this study will try to answer the basic question – is the electric car really energy efficient compared with ICE-powered vehicles? This study investigates the WTW efficiency of conventional internal combustion engine vehicles ICEVs (gasoline, diesel), compressed natural gas vehicles (CNGV) and EVs. The results show that power plant efficiency has a significant consequence on WTW efficiency. The total WTW efficiency of gasoline ICEV ranges between 11–27 %, diesel ICEV ranges from 25 % to 37 % and CNGV ranges from 12 % to 22 %. The EV fed by a natural gas power plant shows the highest WTW efficiency which ranges from 13 % to 31 %. While the EV supplied by coal-fired and diesel power plants have approximately the same WTW efficiency ranging between 13 % to 27 % and 12 % to 25 %, respectively. If renewable energy is used, the losses will drop significantly and the overall efficiency for electric cars will be around 40–70% depending on the source and the location of the renewable energy systems.


Authors Rusinov R.V., Hoodorozhkov S.I., Dobretsov R.Yu., [email protected]. Estimation of the efficiency of the thermal cycle of a piston internal combustion engine The article proposes a simplified technique for the operational assessment of the efficiency of the heat cycle of a piston internal combustion engine. A feature of the developed computational model is the release of the amount of heat consumed for the production of only mechanical energy in the form of a separate component of the heat balance of the cycle. The value of this component is determined by calculation (or according to the results of experiments) in advance, which makes it possible to reduce the number of pre(determined initial data. The methodology is based on a mathematical description of thermodynamic processes occurring during the development of the thermal cycle of an engine with ignition of the working mixture from compression (diesel engine), which allows it to be expanded to new engines of design, including those operating under electronic control. The objects for the application of the calculation method can be diesel engines installed on transport vehicles, both individually and as part of a hybrid power plant, as well as engines of stationary or transportable power plants. The very principle underlying the model can be implemented for engines of other purposes and other thermal cycles. Keywords: heat cycle; the working process; diesel; heat content of the working fluid; expansion


2020 ◽  
Vol 2 (4) ◽  
pp. 196-208
Author(s):  
A. S. Markov ◽  
K. A. Kolganov

Introduction: the article deals with development and implementation of an autonomous, scalable and flexible-capacity micro-generation site representing a combination of various alternative sources of electric energy (up to 30 kW). The co-authors offer a solution for an autonomous micro-generation site: a prototype of a modular platform for a hybrid power plant (MPHP), which enables the use of solar and wind energies, capacitors, as well as an autonomous standby power supply unit having an internal combustion engine. The basic idea underlying the concept of a modular platform and the module combination method are substantiated. Power supply patterns that comprise MPHP are provided. Testing results, as well as the economic efficiency of a system operating in a decentralized energy supply environment are presented in the article.Methods: the study is based on the analysis of strengths, weaknesses and features of existing energy systems using alternative/autonomous sources of electric energy with a view to the extension of capabilities and capacity by means of connecting new generating sources.Findings and discussion: the results of development of an autonomous micro-generation site are presented; a prototype of a modular platform for a hybrid power plant (MPHP) is manufactured.Conclusion: the modular platform of a hybrid power plant enables to combine different types of electric energy sources and retain effective control over operating modes, thus improving the energy supply reliability and saving organic fuel consumed for the generation of 1 kWh of electricity.


Author(s):  
С. А. Филь ◽  
А. В. Бондарчук ◽  
Т. Л. Гоптарь

Nowadays problem of environment pollution reduction is of current interest. Is- sue connected to environment pollution due to harmful emissions caused by internal combustion engine requires attention. Plane pollutes environment with harmful emissions and noise that are caused by internal combustion engine. Harmful emissions have negative influence on environment that can lead to climate change meanwhile it has a negative impact on vital activity of human beings and fauna. Stages of implementation analysis: a) analysis composition of aviation engines emissions and mechanism of influence on atmosphere and human has been revealed; b) comparison of ecological point of view connected to recent modifications of long-haul jet aircraft Boeing 747 and Airbus A380; c) analysis composition of aviation noise and consequences of living organisms influence. In order to reduce negative influence on atmosphere from aviation sector, IKAO reduction of emission quantity method and emitted noise has been created. Method is based on strengthening of quantitative criteria for new certificated aircrafts in comparison to recommendations that are valid nowadays. For requirements implementation created by IKAO it is very important to develop technologies of combustion which creation will cause high cost nowadays and in future comparable to full creation cost of new type of power plant. To this end analysis of advantages and disadvantages aircraft equipment of transport category hybrids, electric and on the basis of power plant fuel elements was implemented. Calculation of electric accumulators capacity has been done in case of type power plant change of aircraft type AN-28 with gas turbine to electric for imple- mentation of training flight till 25 minutes with.


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