power system protection and its application like FACTS

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POWER SYSTEM AND ITS APPLICATION
HARISH KETAVARAPU &KAMALNATH POTNURU
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CONTENTS
Introduction To Power Systems
FACTS
Opportunities On FACTS
FACT Key Devices
Application Of FACTS
FACTS For The Future
Conclusion
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POWER SYSTEMS
An electric power system is a network of electrical
components used to supply, transmit and use electric
power.
APPLICATION OF POWER SYSTEM
•Smart grid
•Load Shedding/Peak Shaving
Generation and distrubution
Automatic Throwover
FACTS
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FLEXIBLE ALTERNATING CURRENT TRANSMISSION
SYSTEMS(FACTS)
 A flexible alternating current transmission system (FACTS) is a
system composed of static equipment used for the AC
transmission of electrical energy.
They increase the reliability of AC grids and reduce power
delivery costs.
They improve transmission quality and efficiency of power
transmission by supplying inductive or reactive power to the grid.
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OPPORTUNITIES
 Control power so that it flows on the desired
routes.
 Increase loading capacity of transmission lines.
 Increases system security.
 Improve generation productivity.
 Effective use of upgrading/ uprating.
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FACTS KEY DEVICES
1. Series compensation
2. Shunt compensation.
3.Static Synchronous Compensator
(STATCOM).
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Series compensation
 FACTS is connected in series with the power system.
 It works as a controllable voltage source.
 On long lines, when a large current flows, this causes
a large voltage drop.
 To compensate, series capacitors are connected,
decreasing the effect of the inductance..
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Shunt compensation
 In shunt compensation, power system is
connected in shunt (parallel) with the FACTS.
 . It works as a controllable current source
 Shunt compensation is of two types:
1.Shunt capacitive compensation
2. Shunt inductive compensation
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Shunt capacitive compensation
 This method is used to improve the power factor.
 Whenever an inductive load is connected to the
transmission line, power factor lags because of
lagging load current.
 To compensate, a shunt capacitor is connected which
draws current leading the source voltage.
 The net result is improvement in power factor.
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Shunt inductive compensation
 This method is used either when charging
the transmission line, or, when there is very low load
at the receiving end
 Shunt capacitance in the transmission line causes
voltage amplification .
 To compensate, shunt inductors are connected across
the transmission line.
 The power transfer capability is thereby increased .
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Static Synchronous Compensator
(STATCOM)
It is a static synchronous generator as
shunt static var compensator whose
capacitive or inductive current can be
controlled independent of the system
voltage.
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APPLICATION
• This research will investigate the use of
renewable dispersed energy system (wind-small
hydro, hybrid scheme) and resulting grid
interface problems and need for effective
mitigative FACTS-based solution.
• Both stand-alone and grid connect wind
energy conversion is not found yet
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FACTS FOR THE FUTURE
 FACTS technology can increase the loading on
existing systems and assist in directing power flow in
an interconnected network.
 The first element in this work is to develop large
semiconductors capable of handling power-class
voltages and currents.
 The increasing demand for electricity owing to the
growing population and economic development
worldwide is the most important factor in the growth
of the global FACTS market.
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CONCLUSION
 FACTS technology provides an alternative to building new
power transmission lines or power generation facilities.
 It is a comparatively inexpensive and fast way to provide
more power and control in existing networks, with minimal
environmental impact.
 FACTS solutions help power companies increase transmission
capacity over existing AC power lines, providing fast voltage
regulation, active power control and load flow control in
meshed power systems.
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THANK U
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