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Impact of Distributed Generation on Voltage Profile in Deregulated Distribution Systems. By: Walid El-Khattam University of Waterloo, Canada E-mail: waselkha@engmail.uwaterloo.ca. Goals of this Paper :.

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impact of distributed generation on voltage profile in deregulated distribution systems

Impact of Distributed Generation on Voltage Profile in Deregulated Distribution Systems

By: Walid El-Khattam

University of Waterloo, Canada

E-mail: waselkha@engmail.uwaterloo.ca

goals of this paper
Goals of this Paper:
  • Describe The Benefits of Implementing Distributed Generation (DG) in The Distribution Network as a Source of Active Power.
  • Discuss an EMTDC Simulation Case to Emphasize The Benefits of DG on:

a) Improving The Network Voltage Profile.

b) Reducing The Network Power Loss.

c) Reducing The System Components Capacities.

distributed generation dg
Distributed Generation (DG):
  • Types:

* Fuel Cell (FC)

* Micro-Turbines (MT)

* Renewable Energy:

- Photovoltaic (PV)

- Wind Turbines

- Storage Energy (Batteries, Flywheels)

slide4

Gas Turbine

Fuel Cell

Micro Turbine

Gas Turbine

PV

Flywheel

Batteries

Fuel Cell

S Tr.

S Tr.

Main Centralized

Generation Plant

Transmission System

TL

TL

DSS

DSS

DSS

DSS

Commercial Load

Industrial Load

Distribution System

Residential Loads

Distribution Network Is No More Vertically Operated

describe briefly the benefits of dg
Describe Briefly The Benefits of DG:

1) Economic Point of View:

a) Save world’s fuels reservoirs

b) Save T&D Expansions Costs

c) Increase the electric power equipment lifetime

d) Can Be Installed incrementally

e) Provide Combined Heat and Power (CHP)

f) Not Restricted by Geographically Limitations

g) Reduce the wholesale power price (Location Margin Pricing LMP)

describe briefly the benefits of dg1
Describe Briefly The Benefits of DG:

2) Operation Point of View:

a)Positive Impact on Distribution Network’s Voltage profile

b) Reduce System’s Power Losses

c) Satisfy the Thermal Constraints of T&D feeders

d) Help for “Peak Load Shaving”

e) Maintain System’s Continuity, Stability and Reliability

f) Provide Local Reliability (in case of emergency and main source’s outages as standby generation)

g) Maintain System’s Security and reinforce the Critical Electric Power Infrastructure (Small Islanding)

h) Positive Impact on Environmental and eliminate/Reduce emissions

an emtdc simulation case study
An EMTDC Simulation Case Study:

The Distribution Network Under Study

Lat2

L7

L8

MF

L2

L3

Distribution

Substation

L4

L5

L6

Lat1

Lat3

L9

L11

L12

L10

L13

an emtdc simulation case study1
An EMTDC Simulation Case Study:

System Voltage Profile Without and With DG at L13

an emtdc simulation case study2
An EMTDC Simulation Case Study:

Sys

C @L11

DG L10

DG L11

DG L12

DG L13

DG L5

DG L6

Sys

C @L11

DG L10

DG L11

DG L12

DG L13

DG L5

DG L6

slide14
An EMTDC Simulation Case Study:Different System Operating Cases to Study System Components Capacities:
an emtdc simulation case study3
An EMTDC Simulation Case Study:

Sys.

DG@L11

DG@L6

DG@L11

DG@L12

DG@L13

results of an emtdc simulation case study
Results of an EMTDC Simulation Case Study:

So The Best Point of DG Connection Is Either L11 Or L12

conclusions
Conclusions:
  • DG has positive impact on improving the distribution system voltage profile.
  • DG can reduce the electric distribution system losses.
  • DG is a new promising planning approach.
  • DG as a “Green Electricity” has numerous environmental benefits.