Initial exploration of wind farm cluster hierarchical coordinated dispatch based on virtual power generator concept

Datong area has abundant wind energy. Due to problem in large scale of wind power grid connection, this paper introduces virtual power plant concept. As for beginning, power source characteristics of the wind farm, pumped storage power station and the thermal power plant are taken for analysis. Three types of different power plants are chosen to represent the virtual power plant modeling as well as adopting the NSGA2 optimization. As a conclusion, this case study proved that virtual power plant can increase the benefits of each power plant and the wind power plant output power curve become smoother.

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Supervisory Power Coordination Scheme to Mitigate Power Curtailment in the Application of a Microgrid

Processes ◽

10.3390/pr9111998 ◽

2021 ◽

Vol 9 (11) ◽

pp. 1998

Author(s):

Heesang Ko ◽

Gihoon Kim ◽

Yanghyun Nam ◽

Kyungsang Ryu

Keyword(s):

Electricity Market ◽

Wind Farm ◽

Voltage Regulation ◽

Power Balance ◽

Simulation Studies ◽

Virtual Power ◽

Dc Voltage ◽

Coordination Scheme ◽

Farm Operators ◽

System Configurations

There are cases where the output of renewable eappennergy (RE) is curtailed due to an increase in the share of RE. Typically, wind power (WP) is curtailed due to oversupply and low loads at midnight. However, there are cases where the output of WP is limited during the daytime due to the increase in the share of photovoltaics (PV). In the current electricity market, as the share of PV is increased, the curtailments of WP will be increased further, which will add to the difficulties experienced by wind farm operators. This paper proposes a supervisory power coordination scheme. The main purposes are to prevent the penetration of extra power from REs into the grid; thus, the curtailments can be prevented. In order to make it feasible, the proposed scheme is to design a grid-connected microgrid system to be operated only in response to loads and virtual power plant (VPP) requests. The effectiveness of the proposed scheme was verified by simulation studies conducted in the MATLAB/Simulink environment. The verification was conducted based on the voltage criteria, such as the AC voltage regulation between ±6% of the rated AC voltage, the DC voltage regulation between ±10% of the rated DC voltage, the power balance according to variations in the loads, and VPP requests for power. The simulation showed that the proposed scheme is feasible and justifiable, not only to mitigate the power curtailment problem but also to apply different system configurations.

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Thermoelectric power generator

AccessScience ◽

10.1036/1097-8542.690900 ◽

2015 ◽

Keyword(s):

Thermoelectric Power ◽

Power Generator ◽

Thermoelectric Power Generator

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2010: Jeffrey Magnavita: An Initial Exploration of Initiatives for Presidential Term 2010

PsycEXTRA Dataset ◽

10.1037/e539472012-001 ◽

2013 ◽

Author(s):

Jeffrey J. Magnavita

Keyword(s):

Initial Exploration

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Main problems of import subsumption in domestic engineering, applicable to small-power electric generator installations

Power and Autonomous equipment ◽

10.32464/2618-8716-2018-1-1-46-51 ◽

2018 ◽

Vol 1 (1) ◽

pp. 46-51 ◽

Cited By ~ 3

Author(s):

A. V. Shelgunov

Keyword(s):

Low Power ◽

Import Substitution ◽

Power Generator ◽

Small Power ◽

Domestic Production ◽

Power Generators ◽

Electric Generator ◽

Generating Sets ◽

Current State ◽

Generator Sets

Subject: the subject of the study are low-power generator sets with a power of up to 30 kW.Materials and methods: in this paper, the main domestic legislative documents regulating the requirements for products. An assessment is made of the current state of Russian engine building.Results: the detailed analysis of the modern domestic market of power generating units with a capacity of up to 30 kW is made, the main problems in the field of domestic production of electric power generators in the range up to 30 kW are revealed, and the prospects for import substitution of gasoline and diesel engines are noted.Conclusions: almost complete absence of the market of domestic low-power generating sets is established, insufficient measures taken to support domestic producers are noted, measures are proposed for the development of domestic production of power units in the range of up to 30 kW.

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Aplikasi metode tahanan jenis dalam studi geologi karst Gua Seropan di Gunung Kidul, Yogyakarta

JURNAL SUMBER DAYA AIR ◽

10.32679/jsda.v12i2.53 ◽

2017 ◽

Vol 12 (2) ◽

pp. 105-116

Author(s):

Pulung A. Pranantya ◽

Nurlia Sadikin

Keyword(s):

Fresh Water ◽

Ground Surface ◽

Water Source ◽

Raw Water ◽

Limited Information ◽

Resistivity Method ◽

Central Java ◽

Underground River ◽

Initial Exploration

In terms of geology, most areas in south of the Gunungkidul District in Central Java consist of the Wonosari formation limestone. The land is generally very dry and source of raw water is also difficult to reach. Findings on the existence of underground river in caves, however, indicate the potential amount of water within the area, especially in the eastern part of the Gunungkidul District. Although limited information available, some fishermen have discovered that Seropan cave contains fresh water source. This cave is situated at 65 m below the cliff. Initial exploration, which done using a multichannel resistivity method, confirmed the availability of freshwater in the cave and underground river. The isopach of cave depth is found in ranges of 80 200 m below the ground surface. The water of Seropan cave can be utilized by implementing pipeline or by drilling at the suggested point based on the interpretation results, i.e. 110o2223.6388 EL 8o42.874 SL. [DY1][PP2][DY1]Perbaiki grammarIn terms of geology, most areas in south of Gunungkidul District in Central Java consist of the Wonosari formation limestone. The land is generally very dry and source of raw water is also difficult to reach. Findings on the exixtence of underground river in caves, however, indicate potential amount of water within the area especially in eastern part of Gunungkidul District. Although limited information available, some fishermans has discovered that Seropan cave contain fresh water source. This cave is situated at 65 m below the cliff. Initial exploration, which done using multichannel resistivity method, confirmed the availability of freshwater in the cave and underground river. The iso pach of cave depth is found in ranges of 80 200 m below the ground surface. The water of Seropan cave can be utilized by implementing pipeline or by drilling at the suggested point based on the interpretation results i.e. 110o2223.6388 EL 8o42.874 SL.[PP2]Sudah diperbaiki

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Evaluating Community Engagement and Benefit-Sharing Practices in Australian Wind Farm Development

Case Studies in the Environment ◽

10.1525/cse.2017.000521 ◽

2017 ◽

Vol 1 (1) ◽

pp. 1-6 ◽

Cited By ~ 2

Author(s):

Nina Lansbury Hall ◽

Jarra Hicks ◽

Taryn Lane ◽

Emily Wood

Keyword(s):

Community Engagement ◽

Community Involvement ◽

Wind Farm ◽

Social Acceptance ◽

Wind Farms ◽

Clean Energy ◽

Benefit Sharing ◽

Delphi Panel ◽

Government Organizations

The wind industry is positioned to contribute significantly to a clean energy future, yet the level of community opposition has at times led to unviable projects. Social acceptance is crucial and can be improved in part through better practice community engagement and benefit-sharing. This case study provides a “snapshot” of current community engagement and benefit-sharing practices for Australian wind farms, with a particular emphasis on practices found to be enhancing positive social outcomes in communities. Five methods were used to gather views on effective engagement and benefit-sharing: a literature review, interviews and a survey of the wind industry, a Delphi panel, and a review of community engagement plans. The overarching finding was that each community engagement and benefit-sharing initiative should be tailored to a community’s context, needs and expectations as informed by community involvement. This requires moving away from a “one size fits all” approach. This case study is relevant to wind developers, energy regulators, local communities and renewable energy-focused non-government organizations. It is applicable beyond Australia to all contexts where wind farm development has encountered conflicted societal acceptance responses.

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