Technical Feasibility of Distributed Generation Network Connection

2013 ◽  
Vol 860-863 ◽  
pp. 2131-2136 ◽  
Author(s):  
Stanislav Eroshenko ◽  
Stepan A. Dmitriev ◽  
Alexandra I. Khalyasmaa
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
Distribution Network ◽  
Feasibility Analysis ◽  
Practical Implementation ◽  
Network Systems ◽  
Technical Feasibility ◽  
Network Connection ◽  
Generation Network

This paper addresses the problems, connected with distributed generation integration into distribution network systems. Due to the large amount of technical impacts associated with distributed generation operation, the list of criteria, illustrating the feasibility of network connection is investigated. The paper also provides the detailed description and practical implementation results of multi-criteria optimization tool, developed for siting and sizing of small-scaled power generation with subsequent technical feasibility analysis.

Protection Scheme for Distribution Network with Distributed Generation

2014 ◽  
Vol 960-961 ◽  
pp. 1376-1380
Author(s):  
Chong Xin Xu ◽  
Yan Jun Jiao
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
Distribution System ◽  
Distribution Network ◽  
Protection System ◽  
Protection Scheme ◽  
Network Protection ◽  
New Energy ◽  
Comprehensive Judgment

Power generation becomes a main way of using new energy. However, the access of distributed generation(DG) causes the ordinary protection system develop a series of problems. In this paper, the structure of distribution network with DG is introduced firstly.Secondly,it is analysed that the effect that DG brings to distribution network protection, and then a new protection scheme of distribution network with DG is put forward. The segment I, II of direction three-current protection on the line which is at the upstream of DG, and the next line’s segment I, II consists of a simple communication unit. Through the comprehensive judgment of two protections’ action results, fault can be isolated in minimum range quickly and accurately. Finally, the correctness and feasibility of the new protection principle are verified by simulating a 10KV distribution system.

The Environmental Benefits-Considered Cost Characteristics of Distributed Generation Analysis

2012 ◽  
Vol 614-615 ◽  
pp. 1990-1996
Author(s):  
Xiu Fan Ma ◽  
Li Zi Zhang ◽  
Huan Jun Cui ◽  
Dan Xu
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
Combustion Engine ◽  
Thermal Power ◽  
Distribution Network ◽  
Environmental Benefits ◽  
Pollutant Emission ◽  
Variable Cost ◽  
Fixed Cost ◽  
Cost Characteristics

The increasing environmental stress and energy crisis promote the distributed generation (DG) to integrate in the distribution network, thus cost characteristics of DGs are important to decision-makers for distribution network expansion and reinforcement. Firstly, this paper analyzed the fixed cost and variable cost of different types of DGs (such as micro-turbine, internal combustion engine, wind power, PV and fuel cell. and then drew the yearly cost characteristic curves. Secondly, we respectively calculated the relevant costs of thermal power generation and distributed generation. These costs include pollutant-emission cost and governance cost considering three types of pollutants, i.e. SO2, NOx and TSP. By doing this, we could better know the environmental benefits of DG compared with conventional power generation. Thirdly, we added the environmental benefits of distributed generation to the variable cost and regarded the final result as comprehensive variable cost. If reflects the environmental advantage of DG. Finally, we drew the cost characteristic curve with environmental benefit of DG. The research would provide reference when choosing the type and capacity of distributed generation in distribution network planning.

Research of the Effects of On-Grid Distributed Generation on Traditional Distribution Network

2014 ◽  
Vol 716-717 ◽  
pp. 1148-1155
Author(s):  
Dong Mei Zhao ◽  
Xin Wang
Keyword(s):  
Power Generation ◽  
Distributed Generation ◽  
Distribution System ◽  
Distribution Network ◽  
Access Point ◽  
Distributed Power ◽  
Distributed Power Generation ◽  
Network Losses ◽  
Typical Distribution ◽  
Technical Features

This paper is focused on technical features of large-capacity distributed power generation and takes the example 33 in distribution system as illustration. What is more, the paper analyzes how injection capacity and access locations of distributed generation can affect voltage and network losses. The analysis carries out the trend that indicators changing regarding to change in injection capacity and access locations. Take a typical distribution network of 10kV with distributed power for example, and analysis what affect will happen to the access point upstream, downstream and adjacent current protection that brings by the distributed generation. It is concluded that the main factor that restrains distributed power capacity in photovoltaic power generation is voltage fluctuation and the relay operation of distributed system.

scholarly journals Design and application of a distributed generation hosting capacity algorithm

2021 ◽  
Vol 32 (3) ◽  
pp. 1-13
Author(s):  
M. A. Sam ◽  
D. T. O Oyedokun ◽  
K.O Akpeji
Keyword(s):  
Distributed Generation ◽  
Distribution Network ◽  
Distribution Networks ◽  
Probabilistic Methods ◽  
Energy Resources ◽  
Practical Implementation ◽  
Low Carbon ◽  
Renewable Energy Resources ◽  
Residential Distribution

Distribution networks in Southern Africa and elsewhere are witnessing an unprecedented growth of consumer-side distributed generation (DG) courtesy of governmental interventions to maximise the utilisation of renewable energy resources through low-carbon grid-edge technologies. To deal with the increasing adoption of consumer-side DG, distribution network operators need to conduct technical studies to foster an understanding of the benefits and impacts of DG and the hosting capacity (HC) of existing distribution networks. This will aid the implementation of measures to manage grid exports. Using a distribution network in Namibia as a case study, this paper presents an algorithm for assessing the HC of consumer-side DG in existing distribution networks that are situated in areas anticipating high and uniform uptake of DG. The algorithm is a hybrid of deterministic and probabilistic methods. The uniqueness of the algorithm is the concept of calculating monthly HC. The algorithm was tested on a real existing residential distribution network and the results confirmed that HC varies monthly. However, the practical implementation of monthly HC requires upgrades to existing inverter technology, which currently contains a single export limit functionality. This opens the possibility to drive innovation in the inverter technology to develop a date-based multiple export limit functionality.

Influence after Distributed Generation Access to the Distribution Network and its Reactive Power Control Strategy

2013 ◽  
Vol 645 ◽  
pp. 409-412
Author(s):  
Ting Yun Gu ◽  
Wei Niu ◽  
Gang Yao ◽  
Jie Na Zhou
Keyword(s):  
Power Generation ◽  
Power Control ◽  
Distributed Generation ◽  
Control Strategy ◽  
Reactive Power ◽  
Distribution Network ◽  
Reactive Power Control ◽  
Distributed Power ◽  
Distributed Power Generation ◽  
Network Losses

Distributed generation technology is a new way of power generation and energy utilization, which has broad prospects for development. After Distributed Generation access to Distribution network near the load, the load distribution will changed.In this paper, discuss the different access location that distributed generation access to the distributed network has different influence to voltage and loss. At the same time, Combination of theory and practical example simulation to description of distributed power generation how to influence the distribution network voltage and network losses. Finally, it’s a brief introduction to the reactive power control strategy of distributed power generation systems.

Determination Method for Optimal Installation of Active Filters in Distribution Network with Distributed Generation

2009 ◽  
Vol 129 (6) ◽  
pp. 733-744 ◽  
Author(s):  
Shoji Kawasaki ◽  
Yasuhiro Hayashi ◽  
Junya Matsuki ◽  
Hirotaka Kikuya ◽  
Masahide Hojo
Keyword(s):  
Distributed Generation ◽  
Distribution Network ◽  
Active Filters ◽  
Determination Method
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