Stand-alone Hybrid Wind-Microturbine Distributed Generation System: A Case Study

2007 ◽  
Author(s):  
C.M. Colson ◽  
C. Wang ◽  
M.H. Nehrir ◽  
S.R. Guda ◽  
J. Li
Keyword(s):  
Distributed Generation ◽  
Generation System ◽  
System A

scholarly journals The Virtual Harmonic Power Droop Strategy to Mitigate the Output Harmonic Voltage of the Inverter

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2196 ◽  
Author(s):  
Yuan Yao ◽  
Longyun Kang
Keyword(s):  
Distributed Generation ◽  
Second Order ◽  
Droop Control ◽  
Virtual Power ◽  
Generation System ◽  
System A ◽  
Common Control ◽  
Harmonic Voltage ◽  
The Mathematical Model ◽  
Harmonic Power

The harmonic voltage issue becomes a challenge for a distributed generation system. Considering that droop control is the most common control algorithm used in the distributed system, a virtual harmonic power droop strategy which aims to mitigate the harmonic voltage is proposed in this paper. First, the conventional droop control is analyzed. Based on that concept, the virtual power algorithm is introduced. Second, the output harmonic voltage issue and the mathematical model of the inverter are presented. In addition, the second-order generalized integrator is briefly discussed. Third, taking into consideration the algorithms and models presented, a virtual harmonic power droop strategy is proposed to implement the harmonic voltage mitigation. In this algorithm, signals in fundamental frequency and harmonic frequency are separated with the help of second-order generalized integrators. Unlike the conventional voltage–current dual loop structure which is used to mitigate system harmonics, this method only needs the virtual power feedback to mitigate the harmonic voltage. Based on these features, the system’s control structure is simplified. Simulation and experimental results verified the harmonic voltage mitigation ability of the proposed strategy.

Robust Design of System of Systems Using Uncertainty Assessment Based on Lattice Point Approach: Case Study of Distributed Generation System Design in a Japanese Dormitory Town

2016 ◽  
Vol 10 (5) ◽  
pp. 678-689 ◽  
Author(s):  
Yutaka Nomaguchi ◽  
◽  
Kazune Kawakami ◽  
Kikuo Fujita ◽  
Yusuke Kishita ◽  
...  
Keyword(s):  
Distributed Generation ◽  
Robust Design ◽  
Uncertainty Assessment ◽  
System Of Systems ◽  
Lattice Points ◽  
Strong Nonlinearity ◽  
Generation System ◽  
Large Uncertainty

A system of systems (SoS) is a class of complex systems that views multiple and small independent systems as part of a larger and more complex system. Because designing an SoS requires evaluation from a long-term viewpoint, it creates a large uncertainty. While researchers have proposed some robust design methods to handle the uncertainty of systems, they cannot be adopted to SoS design because of the SoS’s strong nonlinearity. This paper first discusses how difficult it is to handle uncertainty of SoS considering the SoS characteristics, and then proposes an approach of robust optimality with lattice points that is simple but plausible to sidestep the issue of nonlinearity. A case study of designing a distributed generation (DG) system, which is a typical SoS, in a Japanese dormitory town is demonstrated in order to verify the proposed approach. The results reveal that this approach helps a designer decide the appropriate amount of subsidy in terms of the robustness of DG installation.

Integrated planning of low-voltage power grids and subsidies toward a distributed generation system – Case study of the diffusion of photovoltaics in a Japanese dormitory town

Energy ◽  
2017 ◽  
Vol 140 ◽  
pp. 779-793 ◽  
Author(s):  
Yutaka Nomaguchi ◽  
Hiroki Tanaka ◽  
Akiyuki Sakakibara ◽  
Kikuo Fujita ◽  
Yusuke Kishita ◽  
...  
Keyword(s):  
Distributed Generation ◽  
Low Voltage ◽  
Power Grids ◽  
Integrated Planning ◽  
Generation System

scholarly journals Power System Stability of a Small Sized Isolated Network Supplied by a Combined Wind-Pumped Storage Generation System: A Case Study in the Canary Islands

Energies ◽  
2012 ◽  
Vol 5 (7) ◽  
pp. 2351-2369 ◽  
Author(s):  
Julia Merino ◽  
Carlos Veganzones ◽  
Jose A. Sanchez ◽  
Sergio Martinez ◽  
Carlos A. Platero
Keyword(s):  
Power System ◽  
Canary Islands ◽  
Power System Stability ◽  
System Stability ◽  
Generation System ◽  
System A ◽  
Pumped Storage

scholarly journals Economic Design of Hybrid Pico-Hydraulic/Photovoltaic Generation System: A Case Study in Egypt

Electronics ◽  
2021 ◽  
Vol 10 (23) ◽  
pp. 2947
Author(s):  
Fathalla F. Selim ◽  
Almoataz Abdelaziz ◽  
Ibrahim B. M. Taha
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
High Efficiency ◽  
Renewable Energy Sources ◽  
Generation System ◽  
System A ◽  
Effective Performance ◽  
Professional Control ◽  
Practical Model

Clean and renewable energy sources are the preferable power system generations for the overall world. This research aims to present a very highly integrated, economic, professional, and simple construction, clean and natural resources usage of the renewable hybrid generation system. This research performs analysis, systematic representation, evaluation, and design of the hybrid proposed system—pico-hydraulic from home usage water and photovoltaic (PV)—to generate an optimal renewable generation system using a new professional control system. Applying this proposed technique in Egypt shows that the hybrid system successfully overcame Egypt’s energy crisis. Renewable energy will rise to 8.782% by increasing 7.323% (14,408.83 GWh/Y). Besides, this system increases the power supply reliability; it gives an additional emergency supply and reduces the exhausts from other generation stations (e.g., CO2). The saving from this hybrid system is very effective for; the residential sector (subscribes), which will be ranged from 9599.298 million E£/10Ys up to 86,393.68 million E£/10Ys that equals 5399.6 million $, government to use this extra generation energy to reduce the maximum loads from various stations. A practical model has been presented with results to verify the high efficiency of the proposed system that illustrates the effective performance of the used hybrid system.

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