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Wind Power in Power Systems

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Abbreviations xxxiii<br />

PEFC Polymer electrolyte fuel cell<br />

PF <strong>Power</strong> factor<br />

PG&E Pacific Gas and Electric (Company)<br />

PI Proportional–<strong>in</strong>tegral (controller)<br />

PMG Permanent magnet generator<br />

PMSG Permanent magnet synchronous generator<br />

PPA <strong>Power</strong> purchase agreement<br />

PPP <strong>Power</strong> purchase price<br />

PQ <strong>Power</strong> quality<br />

PSDS <strong>Power</strong> system dynamics simulation<br />

PSLF Load Flow Program (GE)<br />

<strong>Power</strong> System Simulator for Eng<strong>in</strong>eers [PSS/E TM is a registered<br />

trademark of Shaw <strong>Power</strong> Technologies Inc. (PTI)]<br />

PTC Production Tax Credit (USA)<br />

PTI Shaw <strong>Power</strong> Technologies Inc.<br />

p.u. Per unit<br />

PURPA Public Utility Regulatory Policies Act (USA)<br />

PV Photovoltaic<br />

PWM Pulse-width modulated; pulse-width modulation<br />

PX <strong>Power</strong> exchange<br />

PSS/E TM<br />

R<br />

RAL Rutherford Appleton Laboratory (UK)<br />

REC Renewable energy credit<br />

REE Red Ele´ ctrica de Espan˜a<br />

RERL-UMASS Renewable Energy Research Lab at UMass Amherst (USA)<br />

RES Renewable energy source(s)<br />

RMS Root mean square<br />

RMSE Root mean square error<br />

RO Reverse osmosis<br />

RPM Rounds per m<strong>in</strong>ute; rotations per m<strong>in</strong>ute<br />

RPS Renewable portfolio standard<br />

RWTH Rhe<strong>in</strong>isch-Westfa¨ lische Technische Hochschule Aachen, Germany<br />

(Institute of Technology of the Land North Rh<strong>in</strong>e-Westphalia)<br />

S<br />

SAFT SAFT Batteries SA<br />

SC Short-circuit<br />

SCADA Supervisory control and data acquisition<br />

SCE Southern California Edison (Company)<br />

SCIG Squirrel cage <strong>in</strong>duction generator<br />

SCR Short-circuit ratio<br />

SG Synchronous generator<br />

SIL Surge impedance load<strong>in</strong>g<br />

SIMPOW Simulation of <strong>Power</strong> <strong>Systems</strong><br />

SOFC Solid oxide fuel cell<br />

SOFTbank E-Book Center Tehran, Phone: 66403879,66493070 For Educational Use.

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