Development and experimental investigation of a 500-W class ultra-micro gas turbine power generator

Seo, Jeong-Min; Lim, Hyung-Taek; Park, J.; Park, Moo Ryong; Choi, Bum Seog

doi:10.1016/j.energy.2017.02.012

Cited by 24 publications

(9 citation statements)

References 14 publications

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“…In [125] authors presented very small model of gas microturbine, featuring only 500 W of power. The turbine is called the Ultra Micro Gas Turbine (UMGT).…”

Section: Gas Microturbinesmentioning

confidence: 99%

Modern Small and Microcogeneration Systems—A Review

2021

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Small and micro energy sources are becoming increasingly important in the current environmental conditions. Especially, the production of electricity and heat in so-called cogeneration systems allows for significant primary energy savings thanks to their high generation efficiency (up to 90%). This article provides an overview of the currently used and developed technologies applied in small and micro cogeneration systems i.e., Stirling engines, gas and steam microturbines, various types of volumetric expanders (vane, lobe, screw, piston, Wankel, gerotor) and fuel cells. Their basic features, power ranges and examples of implemented installations based on these technologies are presented in this paper.

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“…In [125] authors presented very small model of gas microturbine, featuring only 500 W of power. The turbine is called the Ultra Micro Gas Turbine (UMGT).…”

Section: Gas Microturbinesmentioning

confidence: 99%

Modern Small and Microcogeneration Systems—A Review

2021

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“…These turbines are called ultra-micro gas turbines and typically produce less than 1 kW of power. These proposed turbines can weigh less than 500 g and allow for an entirely new class of UAS to be realized [10,11]. However, significant engineering challenges have prevented any ultra-micro gas turbine from achieving its design point output power.…”

Section: Introduction 1purposementioning

confidence: 99%

Experimental Comparison of Direct and Active Throttle Control of a 7 kW Turboelectric Power System for Unmanned Aircraft

Burgess¹,

Runnels²,

Johnsen³

et al. 2021

Applied Sciences

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This article compares direct turbine throttle control and active turbine throttle control for a turboelectric system; the featured turboprop is rated for 7 kW of shaft output power. The powerplant is intended for applications in unmanned aerial systems and requires a control system to produce different amounts of power for varying mission legs. The most straightforward control scheme explored is direct turbine control, which is characterized by the pilot controlling the throttle of the turbine engine. In contrast, active control is characterized by the turbine reacting to the power demanded by the electric motors or battery recharge cycle. The transient response to electric loads of a small-scale turboelectric system is essential in identifying and characterizing such a system’s safe operational parameters. This paper directly compares the turbogenerator’s transient behavior to varying electric loads and categorizes its dynamic response. A proportional, integral, and derivative (PID) control algorithm was utilized as an active throttle controller through a microcontroller with battery power augmentation for the turboelectric system. This controller manages the turbine’s throttle reactions in response to any electric load when applied or altered. By comparing the system’s response with and without the controller, the authors provide a method to safely minimize the response time of the active throttle controller for use in the real-world environment of unmanned aircraft.

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“…The public perception is that the aircraft engine is one of the most widely used types of gas turbines [4], [5]. Besides this important application area, gas turbines are used in power systems where they are the main power generators [6]. Each gas turbine unit consists of a compressor for compressing air, a combustion chamber for mixing air with fuel and combustion, and a turbine for converting hot and compressed gas energy into mechanical energy [7]- [9].…”

Section: Introductionmentioning

confidence: 99%

Gas Turbines Power Regulation Subject to Actuator Constraints, Disturbances and Measurement Noises

et al. 2021

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An accurate understanding of the output power functionality in gas turbines concerning the fuel, inlet valve status and other parameters can provide a general overview of the turbine's performance. In this study, the problem of practical power regulation in gas turbines is investigated in the simultaneous presence of actuator constraints, unknown disturbances, and measurement noises. To this aim, a model predictive controller-based approach is utilized because of its high flexibility combined with a twolayer filtering and anti-filtering procedure to efficiently cope with the measurement noises. Moreover, the proposed structure takes the effects of unknown disturbances into account and thereby it is shown that the proposed controller can efficiently achieve all design objectives while handling actuator constraints, disturbances and measurement noises.

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Development and experimental investigation of a 500-W class ultra-micro gas turbine power generator

Cited by 24 publications

References 14 publications

Modern Small and Microcogeneration Systems—A Review

Modern Small and Microcogeneration Systems—A Review

Experimental Comparison of Direct and Active Throttle Control of a 7 kW Turboelectric Power System for Unmanned Aircraft

Gas Turbines Power Regulation Subject to Actuator Constraints, Disturbances and Measurement Noises

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