Computational Study of Dynamic Qualities of the Combined Power Plant with a Piston Engine

Static and dynamic indicators of the automatic systems controlling the rotating speed of the combined power plants with piston engines are the main indicators in their performance. These indicators could be improved by selecting the optimal connection scheme for these system elements: piston part, turbine and compressor. The paper analyses design schemes of the combined power plants with a piston engine. The D6N diesel engine operating as part of a diesel generator set was chosen as the study object. Mathematical model was developed of a combined engine with the gas turbine supercharging system and the rotating speed controller. Dynamic qualities of an engine with the gas turbine supercharging system was assessed in comparance with the engine equipped with a power turbine and the drive compressor. Replacing the gas turbine supercharging system of the engine under study with a power turbine and the drive compressor made it possible to reduce the transition process duration from 3.07 to 2.82 s. At the same time, the GOST R 55231–2012 requirements were met setting the transient process maximum time at the 3 s level for the second accuracy class control systems. The rotation speed dip in the transient process increased from 2.3 to 2.6%. However, such overregulation was significantly lower than the maximum overregulation value (7.5%) allowed by GOST R 55231–2012.

EDN: DKZMUV

References

[1] Aleksandrov A.A., Ivashchenko N.A., eds. Mashinostroenie. Entsiklopediya. T. IV. Dvigateli vnutrennego sgoraniya [Mechanical engineering. Encyclopedia. Vol. IV. Combustion engines]. Moscow, Mashinostroenie Publ., 2013. 784 p. (In Russ.).

[2] Grekhov L.V., Ivashchenko N.A., Markov V.A. Toplivnaya apparatura i sistemy upravleniya dizeley [Fuel injection equipment and control systems for diesel engines]. Moscow, Legion-Avtodata Publ., 2005. 344 p. (In Russ.).

[3] Shatrov M.G. Avtomobilnye dvigateli [Car engines]. Moscow, Akademiya Publ., 2013. 464 p. (In Russ.).

[4] Tolshin V.I. Forsirovannye dizeli. Perekhodnye rezhimy, regulirovanie [Forced diesels. Transient modes, regulation]. Moscow, Mashinostroenie Publ., 1995. 198 p. (In Russ.).

[5] Patrakhaltsev N.N., Savastenko A.A. Forsirovanie dvigateley vnutrennego sgoraniya nadduvom [Forcing of internal combustion engines by supercharging]. Moscow, Legion-Avtodata Publ., 2007. 176 p. (In Russ.).

[6] Simson A.E., Kaminskiy V.N., Morgulis Yu.B. et al. Turbonadduv vysokooborotnykh dizeley [Turbocharging of high-speed diesel engines]. Moscow, Mashinostroenie Publ., 1976. 288 p. (In Russ.).

[7] Krutov V.I., Rybalchenko A.G. Regulirovanie turbonadduva DVS [Regulation of turbocharging of internal combustion engines]. Moscow, Vysshaya shkola Publ., 1978. 213 p. (In Russ.).

[8] Kharitonov S.V. Formirovanie kharakteristik dizelnogo dvigatelya pri ispolzovanii sistemy kompleksnogo adaptivnogo upravleniya. Diss. kand. tekh. nauk [Formation of characteristics of a diesel engine at use of system of complex adaptive control. Kand. tech. sci. diss.]. Moscow, Bauman MSTU Publ., 2017. 171 p. (In Russ.).

[9] Fayn M.A. Analysis of perspectives of a control system development for diesel engine supercharging, using descriptions to patents for inventions. Dvigatelestroenie, 1981, no. 2, pp. 36–38. (In Russ.).

[10] Mats Z.Z., Zayonchkovskiy V.N. Unification of driven supercharging units. Dvigatelestroenie, 1982, no. 7, pp. 29–31. (In Russ.).

[11] Vasilyev A.V., Divinskiy E.A. Work cycle of type 8CHVN15/16 engine featuring power gas turbine. Dvigatelestroenie, 2004, no. 2, pp. 15–17. (In Russ.).

[12] Kamkin S.V., Lemeshchenko A.L., Smirnov D.S. Working process of marine engines with high efficiency turbocompressors and power turbines. Dvigatelestroenie, 1996, no. 2, pp. 11–13. (In Russ.).

[13] Shlyakhtov V.A., Zotov L.L. Calculative investigations of working capacities of diesel ChN 32/35 (VASA 32) with power turbine. Dvigatelestroenie, 1994, no. 1, pp. 18–20. (In Russ.).

[14] Nasyrov R.A., Antyukhin G.G. Advantages of the use of a driving volumetric supercharger in the diesel engine 10D100. Dvigatelestroenie, 1984, no. 6, pp. 48–51. (In Russ.).

[15] Bosch. Sistemy upravleniya dizel’nymi dvigatelyami [Bosch. Control systems of diesel engines]. Moscow, Za rulem Publ., 2004. 480 p. (In Russ.).

[16] Bosch. Sistemy upravleniya benzinovymi dvigatelyami [Bosch. Control systems of petrol engines]. Moscow, Za rulem Publ., 2005. 432 p. (In Russ.).

[17] Furman V.V. Uluchshenie ekspluatatsionno-tekhnicheskikh kharakteristik dizel-generatorov teplovozov putem sozdaniya i sovershenstvovaniya sistem elektronnogo upravleniya. Diss. dok. tekh. nauk [Improvement of operational and technical characteristics of diesel generators of diesel locomotives by creation and perfection of electronic control systems. Doc. tech. sci. diss.]. Moscow, Bauman MSTU Publ., 2017. 321 p. (In Russ.).

[18] Plakhov S.V. Uluchshenie ekspluatatsionno-tekhnicheskikh pokazateley dizeley putem sovershenstvovaniya sistem upravleniya toplivopodachey i regulirovaniya chastoty vrashcheniya. Diss. kand. tekh. nauk [Improvement of operational and technical indicators of diesel engines by improving the fuel supply control systems and speed regulation. Kand. tech. sci. diss.]. Moscow, Bauman MSTU Publ., 2021. 120 p. (In Russ.).

[19] Poliker B.E. ed. Dizelnye dvigateli dlya elektroagregatov i elektrostantsiy [Diesel engines for electrical units and power stations]. Moscow, Legion-Avtodata Publ., 2006. 326 p. (In Russ.).

[20] Pozdnyakov E.F. Analiz effektivnosti ispolzovaniya regulyatora chastoty vrashcheniya s posledovatelno vklyuchennymi korrektiruyushchimi zvenyami v dizelnom dvigatele dizel-generatornoy ustanovki. Diss. kand. tekh. nauk [Efficiency analysis of the use of a speed regulator with serially included corrective links in a diesel engine of a diesel-generator set. Kand. tech. sci. diss.]. Moscow, Bauman MSTU Publ., 2009. 150 p. (In Russ.).

[21] Patrakhaltsev N.N. Neustanovivshiesya rezhimy raboty dvigateley vnutrennego sgoraniya [Unsteady operating modes of internal combustion engines]. Moscow, Izd-vo RUDN Publ., 2009. 380 p. (In Russ.).

[22] Gusakov S.V., Bisenbaev S.S., Priyandaka A. Indecis of dynamical qualites of ice. Vestnik RUDN. Inzhenernye issledovaniya [RUDN Journal of Engineering Research], 2004, no. 2, pp. 20–24. (In Russ.).

[23] GOST R 55231-2012. Sistemy avtomaticheskogo regulirovaniya chastoty vrashcheniya (SARCh) sudovykh, teplovoznykh i promyshlennykh dvigateley vnutrennego sgoraniya. Obshchie tekhnicheskie usloviya [State standard GOST R 55231-2012. Automatic rotational frequency control systems (ARFCS) of marine, locomotive and industrial reciprocating internal combustion engines. General specifications]. Moscow, Standartinform Publ., 2013. 18 p. (In Russ.).

[24] Dvigatel dizelnyy silovykh ustanovok 1D6N-250S2 (U1D6). altaydizel.ru: website. URL: https://altaydizel.ru/p/764612142-dvigatel-dizelnyy-silovyh-ustanovok-1d6n-250s2-u1d6/ (accessed: 22.08.2023). (In Russ.).

[25] Pupkov K.A., Egupov N.D., eds. Metody klassicheskoy i sovremennoy teorii avtomaticheskogo upravleniya. T. 1. Matematicheskie modeli, dinamicheskie kharakteristiki i analiz sistem avtomaticheskogo upravleniya [Methods of classical and modern theory of automatic control. Vol. 1. Mathematical models, dynamic characteristics and analysis of automatic control systems]. Moscow, Bauman MSTU Publ., 2004. 656 p. (In Russ.).

[26] Pupkov K.A., Egupov N.D., eds. Metody klassicheskoy i sovremennoy teorii avtomaticheskogo upravleniya. T. 3. Metody sovremennoy teorii avtomaticheskogo upravleniya [Methods of classical and modern theory of automatic control. Vol. 3. Methods of modern theory of automatic control]. Moscow, Bauman MSTU Publ., 2004. 784 p. (In Russ.).

[27] Krutov V.I. Avtomaticheskoe regulirovanie i upravlenie dvigateley vnutrennego sgoraniya [Automatic regulation and control of internal combustion engines]. Moscow, Mashinostroenie Publ., 1989. 416 p. (In Russ.).

[28] Khryashchev Yu.E. Obosnovanie perspektivnykh sposobov i razrabotka sredstv regulirovaniya chastoty vrashcheniya avtomobilnykh dizeley. Diss. kand. tekh. nauk [Justification of perspective ways and development of means of regulation of a speed of automobile diesel engines. Kand. tech. sci. diss.]. Rybinsk, RGATA Publ., 2000. 360 p. (In Russ.).

[29] Shlenov M.I. Uluchshenie ekspluatatsionnykh pokazateley transportnogo dizelya putem sovershenstvovaniya sistemy avtomaticheskogo regulirovaniya chastoty vrashcheniya. Diss. kand. tekh. nauk [Improvement of the transport diesel engine performance by improving the system of automatic speed regulation. Kand. tech. sci. diss.]. Moscow, Bauman MSTU Publ., 2008. 163 p. (In Russ.).

[30] Polukhin E.E. Uluchshenie ekspluatatsionno-tekhnicheskikh pokazateley transportnogo dizelya putem sovershenstvovaniya sistemy regulirovaniya ugla operezheniya vpryskivaniya topliva. Diss. kand. tekh. nauk [Improvement of operational and technical characteristics of a transport diesel engine by improvement of the fuel injection advance angle regulation system. Kand. tech. sci. diss.]. Moscow, Bauman MSTU Publ., 2008. 152 p. (In Russ.).

[31] Markov V.A., Pozdnyakov E.F., Furman V.V. et al. Simulation of the diesel engine rotational speed automatic control system. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2019, no. 7, pp. 35–46, doi: http://dx.doi.org/10.18698/0536-1044-2019-7-35-46 (in Russ.).

[32] Kartashov B.A., Shabaev E.A., Kozlov O.S. et al. SimInTech. Sreda dinamicheskogo modelirovaniya tekhnicheskikh system [SimInTech. Environment for dynamic modelling of technical systems]. Moscow, DMK Press Publ., 2017. 424 p. (In Russ.).

[33] Shchekaturov A.M., Korsakov A.R. SimInTech. Metodika modelirovaniya dinamiki paroturbinnoy ustanovki [SimInTech. Methodology of modelling dynamics of steam turbine plant.]. Moscow, DMK Press Publ., 2021. 242 p. (In Russ.).