DESIGN OF A CONTROL POWER SYSTEM BASED ON TEMPERATURE, MEAN EFFECTIVE CYCLE PRESSURE, AND PISTON SPEED FOR SPEED RESPONSE IMPROVEMENT OF STIRLING ENGINES

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GHAFARI A.; ALIABADI A.A.F.; ZIABASHAR HAGH M.

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Journal: Journal of Aerospace Mechanics Year:2005 | Volume:1 | Issue:2 Page(s): 61-72

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Title

DESIGN OF A CONTROL POWER SYSTEM BASED ON TEMPERATURE, MEAN EFFECTIVE CYCLE PRESSURE, AND PISTON SPEED FOR SPEED RESPONSE IMPROVEMENT OF STIRLING ENGINES

Author(s)

GHAFARI A. | ALIABADI A.A.F. | ZIABASHAR HAGH M. | Issue Writer Certificate

Keywords

STIRLING ENGINEQ2

DYNAMICAL SIMULATINQ2

POWER CONTROLQ4

Abstract

The main reason for the slow response of STIRLING ENGINE with respect to power requirement supply is that the system energy supply is provided from wall to the working gas inside the cylinder. On contrary to most control systems, in STIRLING ENGINEs, actuator has the highest lag time, since energy transfer from the wall is taking place very slowly. In this article, increasing the reaction speed of STIRLING ENGINE with respect to the required power is considered. Also, besides the temperature and pressure control inputs, a piston speed is also taken into account. As a result, control system is considered as a constant pressure and based on needed demand, the required parameters are calculated first from power-speed tables. At first, this speed is provided by an auxiliary electrical DC motor. Then, by comparing the output signal with the required output, the controlling commands are specified for pressure and gas temperature adjustments. In striling engine modeling, the isothermal assumption is eliminated in order to have a real behavior. The simulation of closed loop system and the designed controller show the effective increase in engine response speed. In this article, it is also shown that the control system is resistant, subjected to internal as well as external disturbances. These disturbances are in the form of changes in heat sink and system parameters. Since, torque is considered constant in a large speed interval, the engine efficiency will not be much affected.

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APA: Copy

GHAFARI, A., ALIABADI, A.A.F., & ZIABASHAR HAGH, M.. (2005). DESIGN OF A CONTROL POWER SYSTEM BASED ON TEMPERATURE, MEAN EFFECTIVE CYCLE PRESSURE, AND PISTON SPEED FOR SPEED RESPONSE IMPROVEMENT OF STIRLING ENGINES. AEROSPACE MECHANICS JOURNAL, 1(2), 61-72. SID. https://sid.ir/paper/101912/en

Vancouver: Copy

GHAFARI A., ALIABADI A.A.F., ZIABASHAR HAGH M.. DESIGN OF A CONTROL POWER SYSTEM BASED ON TEMPERATURE, MEAN EFFECTIVE CYCLE PRESSURE, AND PISTON SPEED FOR SPEED RESPONSE IMPROVEMENT OF STIRLING ENGINES. AEROSPACE MECHANICS JOURNAL[Internet]. 2005;1(2):61-72. Available from: https://sid.ir/paper/101912/en

IEEE: Copy

A. GHAFARI, A.A.F. ALIABADI, and M. ZIABASHAR HAGH, “DESIGN OF A CONTROL POWER SYSTEM BASED ON TEMPERATURE, MEAN EFFECTIVE CYCLE PRESSURE, AND PISTON SPEED FOR SPEED RESPONSE IMPROVEMENT OF STIRLING ENGINES,” AEROSPACE MECHANICS JOURNAL, vol. 1, no. 2, pp. 61–72, 2005, [Online]. Available: https://sid.ir/paper/101912/en

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