Coordination Between OLTC and SVC for Voltage Regulation in Unbalanced Distribution System Distributed Generation

2014 ◽  
Vol 29 (1) ◽  
pp. 289-299 ◽  
Author(s):  
Novalio Daratha ◽  
Biswarup Das ◽  
Jaydev Sharma
Keyword(s):  
Distributed Generation ◽  
Distribution System ◽  
Voltage Regulation

Effect of Distributed Generation on Voltage Levels in a Radial Distribution Network Without Communication

2009 ◽  
Author(s):  
Allie E. Auld ◽  
Jack Brouwer ◽  
Scott Samuelsen ◽  
Keyue M. Smedley
Keyword(s):  
Distributed Generation ◽  
Radial Distribution ◽  
Power Factor ◽  
Distribution System ◽  
Reactive Power ◽  
Voltage Regulation ◽  
Load Drop ◽  
Unity Power Factor ◽  
Distribution Feeder ◽  
Circuit Power

The challenges associated with incorporating a large amount of distributed generation (DG), including fuel cells, into a radial distribution feeder are examined using a Matlab/Simulink™ model. Two generic distribution feeder models are used to investigate possible scenarios where voltage problems may occur. Modern inverter topologies make ancillary features, such as on-demand reactive power generation/consumption economical to include, which expands the design space across which DG can function in the distribution system. The simulation platform enables testing of the following local control goals: DG connected with unity power factor, DG and load connected with unity power factor, DG connected with local voltage regulation (LVR), and DG connected with real power curtailment. Both the LVR and curtailment strategies can regulate the voltage of the simplest circuit case, but the circuit utilizing a substation with load drop compensation has no universal solution. Even DG with a penetration level around 10% of rated circuit power can cause overvoltage problems with load drop compensation. This implies that some degree of communication will be needed to reliably install a large amount of DG on a distribution circuit.

Distribution System Voltage Regulation with Distributed Generation Based on VQC and SVC

2013 ◽  
Vol 748 ◽  
pp. 477-484 ◽  
Author(s):  
Peng Li ◽  
Tao Li ◽  
Jia Ming Li ◽  
Duo Xu ◽  
Ru Yu Shi
Keyword(s):  
Distributed Generation ◽  
Distribution System ◽  
Power Flow ◽  
Reactive Power ◽  
Fuzzy Controller ◽  
Voltage Regulation ◽  
Voltage Profile ◽  
Reactive Power Flow ◽  
Regulation Method ◽  
Typical Distribution

The distributed generation (DG) may lead to a great impact on the reactive power flow, feeder voltage profile and the means of voltage regulation when integrated into a typical distribution system. Therefore, there is possibility that the customers voltage violate the permissible limits. In order to regulate the voltage of the distribution system with DG, local voltage and reactive power control (VQC) based on fuzzy control theory is adopted in substation and the Static Var Compensator (SVC) is installed in the appropriate node in this paper, and the fuzzy controller of VQC has been designed at the same time. A simplified model of a real 10kV radial distribution system has been simulated in MATLAB to illustrate the use of the voltage regulation method, and the simulation results show that the proposed method can regulate the line voltage of distribution system with DG within the regulated voltage ranges.

Research on the Voltage Regulation of in Interconnected Distributed Network - Distributed Generation

2010 ◽  
Vol 171-172 ◽  
pp. 342-345
Author(s):  
Shu Ying Yang ◽  
Zhao Xia Liu
Keyword(s):  
Distributed Generation ◽  
Power Distribution ◽  
Distribution System ◽  
Reactive Power ◽  
Voltage Regulation ◽  
System Model ◽  
Distributed Network ◽  
Power Distribution System ◽  
Active And Reactive Power ◽  
Superposition Theorem

Voltage regulation can be control after distributed generation (DG) into the distribution network. This paper deals with a voltage regulation algorithm for a grid-connected DG, based on active and reactive power control. It also proposes the algorithm of the simplified voltage—superposition theorem. The proposed method is applied to the power distribution system model, and its effectiveness is verified through simulation results. At in the end of the paper, we make a conclusion.

scholarly journals Novel Technique for Optimal Placement and Sizing of DG in 3-Phase Unbalanced Radial Secondary Distribution System

2020 ◽  
Vol 9 (4) ◽  
pp. 1756-1760
Keyword(s):  
Distributed Generation ◽  
Distribution System ◽  
Voltage Regulation ◽  
Test System ◽  
Optimal Placement ◽  
Power Losses ◽  
Optimal Position ◽  
Optimum Position ◽  
A New Technique

The optimum position and volume of the Distributed Generation to be planned in the unbalanced radial distribution network (URDN) is critical to minimize power losses. Incorrect size and location may enhance the power losses and voltage regulation. This paper investigates the operations of the distribution system and aims to develop a new technique to solve the problem of placement and sizing distributed generation to minimize power loss, improving the profile of voltage. A Novel Sensitivity Analysis is used to estimate the optimal position and volume of DG units to be installed in a URDN. The proposed technique is validated on the 25 bus test system to illustrate and evaluate the correctness. The results are confronted with the results of distinct methods available in the literature. The performance of the proposed method is considered to be better in terms of the quality of the solutions than the other classical techniques..

Sign in / Sign up

Export Citation Format

Share Document