scholarly journals Technology of electric power generators using mechanical vibrations for wearable information equipment

2006 ◽  
Vol 2 (1) ◽  
pp. 49-54
Author(s):  
Hiroshi Hosaka
Keyword(s):  
Electric Power ◽  
Mechanical Vibrations ◽  
Power Generators

Robust leader–follower synchronization of electric power generators

2021 ◽  
Vol 152 ◽  
pp. 104937
Author(s):  
Olaoluwapo Ajala ◽  
Alejandro D. Domínguez-García ◽  
Daniel Liberzon
Keyword(s):  
Electric Power ◽  
Power Generators

scholarly journals A Model Predictive Control Design for Power Generation Heavy-Duty Gas Turbines

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2182 ◽  
Author(s):  
Alessandro Rosini ◽  
Alessandro Palmieri ◽  
Damiano Lanzarotto ◽  
Renato Procopio ◽  
Andrea Bonfiglio
Keyword(s):  
Power Generation ◽  
Model Predictive Control ◽  
Electric Power ◽  
Predictive Control ◽  
Gas Turbines ◽  
Feedback Linearization ◽  
Renewable Energy Sources ◽  
Current Standard ◽  
Power Generators ◽  
Highly Nonlinear

The new electric power generation scenario, characterized by growing variability due to the greater presence of renewable energy sources (RES), requires more restrictive dynamic requirements for conventional power generators. Among traditional power generators, gas turbines (GTs) can regulate the output electric power faster than any other type of plant; therefore, they are of considerable interest in this context. In particular, the dynamic performance of a GT, being a highly nonlinear and complex system, strongly depends on the applied control system. Proportional–integral–derivative (PID) controllers are the current standard for GT control. However, since such controllers have limitations for various reasons, a model predictive control (MPC) was designed in this study to enhance GT performance in terms of dynamic behavior and robustness to model uncertainties. A comparison with traditional PID-based controllers and alternative model-based control approaches (feedback linearization control) found in the literature demonstrated the effectiveness of the proposed approach.

The Positive Effects of Utilizing Continuous Hydrogen Replenishment in Electric Power Generators

2005 ◽  
Author(s):  
John Speranza ◽  
Lawrence Dusold
Keyword(s):  
Thermal Conductivity ◽  
Electric Power ◽  
Dew Point ◽  
High Thermal Conductivity ◽  
Power Generators ◽  
Positive Effects ◽  
Generating Capacity ◽  
Electric Generators ◽  
Cooling Media ◽  
High Level

The purity of hydrogen used within electric power generators has a direct effect on cooling efficiency, windage friction losses, generating capacity and generator longevity. Hydrogen’s high thermal conductivity is the primary reason it is used as the cooling media in a generator instead of air. Hydrogen has a thermal conductivity of nearly seven times that of air, and its ability to transfer heat through forced convection is about 50% better than air. Maintaining hydrogen’s high thermal conductivity through purity monitoring and continuous improvement is important to the overall operation of hydrogen cooled electric generators. Continuous hydrogen replenishment has been proven to be an effective technique in maintaining purity within hydrogen cooled electric generators. A properly implemented continuous replenishment system will maintain a consistent high level of purity, low gas dew point, and constant pressure within the generator.

Effects of Fuel of Electric Power Generators on Soil Properties

2018 ◽  
Vol 26 (4) ◽  
pp. 1-10
Author(s):  
A Wahab ◽  
D Adesanya ◽  
O Ata
Keyword(s):  
Soil Properties ◽  
Electric Power ◽  
Power Generators

scholarly journals Problems Concerning Cooled Walls of Channels in AC and DC MHD Electric Power Generators

1962 ◽  
Vol 10 (101) ◽  
pp. 174-179
Author(s):  
Yoichi MIMURA ◽  
Fujihiko SAKAO ◽  
Mitugi HASIKUNI
Keyword(s):  
Electric Power ◽  
Power Generators

scholarly journals Противодействующий фотовольтаический эффект в верхней межгенераторной части трехпереходных GaInP/GaAs/Ge солнечных элементов

2019 ◽  
Vol 53 (11) ◽  
pp. 1568
Author(s):  
М.А. Минтаиров ◽  
В.В. Евстропов ◽  
С.А. Минтаиров ◽  
М.З. Шварц ◽  
Н.А. Калюжный
Keyword(s):  
Electric Power ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Undesirable Effect ◽  
Current Dependence ◽  
Power Generators ◽  
Current Voltage ◽  
Current Voltage Characteristics

AbstractThe “top” intergenerator part situated between the GaInP and GaAs subcells (electric power generators) is analyzed. The shape of the light current–voltage characteristics and the V _ oc – J _ sc (open-circuit voltage–short-circuit current) dependence are examined. It is found that the p ^+– n ^+ tunnel heterojunction situated in the “top” intergenerator part can operate as a photoelectric source counteracting the base p – n junctions. In this case, the V _ oc – J _ sc characteristic has a descending part, and a sharp jump can be observed. This undesirable effect becomes weaker with increasing peak current of the tunnel junction.

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