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instantaneous power control of d statcom with consideration of power factor correction


Posted by:
Created at: Wednesday 28th of November 2012 07:23:06 AM
Last Edited Or Replied at :Wednesday 28th of November 2012 07:23:06 AM
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please send this topic pdf and d..................[:=> Show Contents <=:]



enhancement of power quality in distribution system using d-statcom


Posted by:
Created at: Friday 09th of March 2012 08:15:41 AM
Last Edited Or Replied at :Thursday 28th of June 2012 12:52:00 AM
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pleas..................[:=> Show Contents <=:]



H-BRIDGE VSC WITH A T-CONNECTED TRANSFORMER


Posted by: seminar paper
Created at: Friday 09th of March 2012 02:55:43 AM
Last Edited Or Replied at :Friday 09th of March 2012 02:55:43 AM
what is h bridge vsc , what is meant by hbridge vsc, vsc based dstatcom using matlab simulink ,
ccepted . Some remedies to these
power quality problems are reported in the literature . A group of controllers together called Custom Power
Devices (CPD), which include the DSTATCOM
(distribution static compensator), DVR (dynamic voltage
restorer) and UPQC (unified power quality conditioner).
The DSTATCOM is a shunt-connected device, which
takes care of the power quality problems in the currents.



PROPOSED DSTATCOM
Fig. 1(a) shows the power circuit of proposed H-bridge
VSC based DSTATCOM along with a T- connected
transformer connected in the three-phase four-..................[:=> Show Contents <=:]



enhancement of power quality problem in distribution system using D-statcom


Posted by: sumanas23
Created at: Thursday 05th of January 2012 08:41:03 AM
Last Edited Or Replied at :Friday 03rd of February 2012 01:16:26 AM
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sags,
harmonic distortion and low power factor using Distribution
Static Compensator (..................[:=> Show Contents <=:]



STATCOM Analysis and Controller Design for Power System Voltage Regulation


Posted by: smart paper boy
Created at: Thursday 28th of July 2011 05:14:17 AM
Last Edited Or Replied at :Friday 14th of December 2012 02:49:17 AM
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f the phase angle of line voltage
(U) is taken as a reference, the phase angle of VSC voltage
(V) is the same as the firing angle (δ) of VSC. Thus, if the
firing angles are slightly advanced, the dc voltage (Udc)
decreases and reactive power flows into STATCOM.
Conversely, if the firing angles are slightly delayed, the dc
voltage increases and STATCOM supplies reactive power to
the bus. By controlling the firing angles of VSC, the reactive
power can be generated from or absorbed by STATCOM and
the voltage regulation can be achieved.
Nitus Voraphonpiput is with Power System Analysis ..................[:=> Show Contents <=:]



A Comparative Study of Control Algorithms for DSTATCOM for Load Compensation


Posted by: seminar class
Created at: Wednesday 04th of May 2011 03:45:57 AM
Last Edited Or Replied at :Friday 09th of December 2011 10:00:26 PM
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undamental frequency component ofgenerators . DSTATCOM can be used for the the load current which is being extracted by these techniques. compensation of reactive power and unbalance loading indistribution system . The performance of the DSTATCOM A. Instantaneous Reactive Power Theorydepends on the control algorithm i.e. the extraction of the Instantaneous reactive power theory has been initiallycurrent components. For this purpose there are many control proposed by Akagi in 1983 4. The theory is based on theschemes which are reported in the literature and some of these transformation ..................[:=> Show Contents <=:]



STATCOM-controlled HVDC Power Transmission for Large Offshore Wind Farms Engineering


Posted by: seminar class
Created at: Tuesday 03rd of May 2011 06:01:01 AM
Last Edited Or Replied at :Saturday 08th of December 2012 05:13:11 AM
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operating speed range
of 0.75 to1.25pu and is considered a lower cost, proven technology
solution. The ratings of commercial DFIG-based
wind turbines now reach 5MW .
The converter-controlled DFIG, STATCOM and LCC
HVDC have all been well studied as separate components. In
, the overall power system concept and possible control
paradigms have been described, but these studies have not
included system analysis or a formal procedure of control
system design. A detailed mathematical study of the system
that resulted in the plant model appropriate for a formal control
design had b..................[:=> Show Contents <=:]



DSTATCOM


Posted by: seminar class
Created at: Monday 28th of March 2011 03:43:10 AM
Last Edited Or Replied at :Tuesday 05th of June 2012 06:52:05 AM
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ive Power Burden
 High harmonic currents
 Unbalanced loads
 Excessive neutral currents
Shunt compensation
Principle of shunt compensation

 Vs = v1+j i1 x/2
 V2 = vr+j i2 x/2
 Ps = I Vs I. I V1 I.sin $/2 /x/2
 PR = I VR I. I V2 I.sin $/2 /x/2
 In mid point, V1= V2
Phasor diagram
Shunt compensators

 Thyristor controlled reactor
 Thyristor switched capacitor
 Static VAR compensator
 Advanced static VAR compensator
 Thyristor controlled reactor
 Thyristor switched capacitor
 Static compensator
 cont..................[:=> Show Contents <=:]



APPLICAION OF ANN CONTROLLER IN A FACTS DEVICE full report


Posted by: seminar topics
Created at: Tuesday 30th of March 2010 09:10:52 PM
Last Edited Or Replied at :Tuesday 13th of April 2010 11:23:18 AM
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, adjustable-speed drives and other power electronic loads can generate significant amounts of harmonics.
Solutions to problems caused by harmonic distortion include installing active or passive filters at the load or bus, or taking advantage of transformer connections that enable cancellation of zero-sequence components.
Distorted Voltage Waveforms
Voltage Notching
Voltage notching is caused by the commutation of power electronic rectifiers. It is an effect that can raise PQ issues in any facility where solid-state rectifiers (for example, variable-speed drives) are used

When the drive..................[:=> Show Contents <=:]



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