scholarly journals Integration of Hybrid Distributed Generation Units in Power Grid

10.5772/19160 ◽  
2011 ◽  
Author(s):  
Marco Mauri ◽  
Luisa Frosio ◽  
Gabriele Marchegiani
Keyword(s):  
Distributed Generation ◽  
Power Grid

scholarly journals Optimal Allocation of Large-Capacity Distributed Generation with the Volt/Var Control Capability Using Particle Swarm Optimization

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3112
Author(s):  
Donghyeon Lee ◽  
Seungwan Son ◽  
Insu Kim
Keyword(s):  
Particle Swarm Optimization ◽  
Electric Power ◽  
Distributed Generation ◽  
Optimal Allocation ◽  
Power Grid ◽  
Particle Swarm ◽  
Renewable Energy Resources ◽  
Swarm Optimization ◽  
Large Capacity ◽  
Electric Power Grid

Widespread interest in environmental issues is growing. Many studies have examined the effect of distributed generation (DG) from renewable energy resources on the electric power grid. For example, various studies efficiently connect growing DG to the current electric power grid. Accordingly, the objective of this study is to present an algorithm that determines DG location and capacity. For this purpose, this study combines particle swarm optimization (PSO) and the Volt/Var control (VVC) of DG while regulating the voltage magnitude within the allowable variation (e.g., ±5%). For practical optimization, the PSO algorithm is enhanced by applying load profile data (e.g., 24-h data). The objective function (OF) in the proposed PSO method considers voltage variations, line losses, and economic aspects of deploying large-capacity DG (e.g., installation costs) to transmission networks. The case studies validate the proposed method (i.e., optimal allocation of DG with the capability of VVC with PSO) by applying the proposed OF to the PSO that finds the optimal DG capacity and location in various scenarios (e.g., the IEEE 14- and 30-bus test feeders). This study then uses VVC to compare the voltage profile, loss, and installation cost improved by DG to a grid without DG.

Overview and Prospects of Black Start

2014 ◽  
Vol 533 ◽  
pp. 401-408
Author(s):  
Zi Ying Chen ◽  
Jia Lin Hu ◽  
Jia Yao Li ◽  
Wei Xun Long
Keyword(s):  
Electric Vehicle ◽  
Distributed Generation ◽  
Power Grid ◽  
Rapid Development ◽  
Research Development ◽  
Power Sources ◽  
Technical Problems ◽  
Grid Construction ◽  
Microgrid Control ◽  
Operation Characteristics

With the rapid development of power grid, black start has been an indispensable part of power grid construction, and the gradually mature microgrid technology will play an important role in solving power system problems. Otherwise, plug-in electric vehicle will become an important load in future power grid. The black start concept, research status, black start scheme development and its verification are stated in detail; distributed generation and microgrid are introduced; the strategy about taking microgrid as black start power sources is proposed; and key technical problems existing on the combination of black start, microgrid and plug-in electric vehicle are explored according to the microgrid control and operation characteristics. On the basis of summarizing black start and microgrid research development and achievements in the globe, this paper discusses prospects of black start and provides new views and suggestions for its further research.

scholarly journals Impacts of Distributed Generation in Electrical Grids

2020 ◽  
Author(s):  
Maria Cecilia C. Lima ◽  
Handerson Marques ◽  
Thommas Kevin Sales Flores ◽  
Fabiano Salvadori ◽  
Lucas V. Hartmann ◽  
...  
Keyword(s):  
Distributed Generation ◽  
Power Factor ◽  
Power Grid ◽  
Energy Sources ◽  
Impedance Matrix ◽  
Electrical Grid ◽  
Preliminary Results ◽  
Electrical Grids ◽  
Common Coupling ◽  
The Impact

Unconventional energy sources such as wind, solar and biomass represents more and more an alternative in substitution of conventional energy sources. In effect, many studies still need to be done to clearly identify the impacts that the insertion of distributed generation (DG) sources represent in the power grid. In this paper, an analysis of the impact of the distributed generation (DG) insertion in the electrical grid is realized, based on impedance matrix, grid voltage and power factor (PF). Benchmarks were created to relate the sensibility in a point common coupling (PCC) to the DG insertion. Preliminary results show that sensibility does not change with the load or the PF of the DG.

scholarly journals Technocenological approach to development of power generation of industrial regions

2021 ◽  
Vol 315 ◽  
pp. 03007
Author(s):  
Ivan Paskar ◽  
Fedor Nepsha ◽  
Gennadij Lebedev
Keyword(s):  
Power Generation ◽  
Low Power ◽  
Distributed Generation ◽  
Energy Security ◽  
Power Grid ◽  
Generation System ◽  
Power Sources ◽  
Industrial Regions ◽  
The Stability ◽  
Generation Facility

The prerequisites for the implementation of distributed generation facilities in the power grid complex of the region are highlighted. A technocenological approach has been chosen for the economically and technically sound implementation of power sources. The procedures for the verification and visualization of the technocenosis were carried out, and the stability of the existing generation system was determined. The analysis of the generating complex with the power units expected to be commissioned has been carried out. It is concluded that it is necessary to install a distributed generation facility of low power to improve energy security.

Scheme of Intelligent Building Based on Distributed Generation and Micro-Grid

2012 ◽  
Vol 614-615 ◽  
pp. 1851-1854
Author(s):  
Jia Lu Liu ◽  
Guang Yang ◽  
Hong Hao Wang ◽  
Wei Min
Keyword(s):  
Distributed Generation ◽  
Smart Home ◽  
Power Grid ◽  
Storage Device ◽  
Energy Management System ◽  
Grid System ◽  
Intelligent Building ◽  
Discharge Device ◽  
Micro Grid ◽  
Intelligent Community

The scheme of intelligent Building based on distributed generation and micro-grid is presented in this paper. There are five parts in the scheme: distributed generation, storage device, charge-discharge device of EV, micro-grid control and energy management system, smart home system. The scheme of the intelligent building in this paper has been realized in displayed project of intelligent community in china. The feasibility of establishing a micro grid system at the branch of power grid is analyzed after evaluating the performance of the micro grid system on saving power, reducing cost in transmit line, and increasing the security. Due to the analysis, this micro system has good performance in these aspects and has a great future in the power grid.

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