Download Robust Control for Grid Voltage Stability: High Penetration by Jahangir Hossain, Hemanshu Roy Pota (auth.) PDF
By Jahangir Hossain, Hemanshu Roy Pota (auth.)
This publication makes the realm of integration of renewable strength into the present electrical energy grid obtainable to engineers and researchers. this can be a self-contained textual content which has versions of strength approach units and keep watch over idea essential to comprehend and music controllers in use at the moment. the hot learn in renewable power integration is positioned into standpoint by way of evaluating the switch within the procedure dynamics compared to the conventional electrical energy grid. The emergence of the voltage balance challenge is prompted by means of huge examples. quite a few the way to mitigate this challenge are mentioned bringing out their advantages essentially. As an answer to the voltage balance challenge, the publication covers using evidence units and simple keep an eye on tools. an immense contribution of this e-book is to introduce complex regulate equipment for voltage balance. It covers the appliance of output suggestions tools with a distinct emphasis on easy methods to sure modelling uncertainties and using powerful regulate thought to layout controllers for sensible strength platforms. designated emphasis is given to designing controllers for proof units to enhance low-voltage ride-through potential of induction turbines. As quite often PV is attached in low voltage distribution sector, this booklet additionally presents a scientific keep watch over layout for the PV unit in distribution structures. the speculation is abundantly illustrated with huge IEEE try out platforms with a number of turbines and dynamic load. Controllers are designed utilizing Matlab and demonstrated utilizing complete procedure versions in PSSE.
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Extra resources for Robust Control for Grid Voltage Stability: High Penetration of Renewable Energy: Interfacing Conventional and Renewable Power Generation Resources
Sample text
Chompoo-inwai C, Yingvivatanapong C, Methaprayoon K, Lee WJ (2005) Reactive compensation techniques to improve the ride-through capability of wind turbine during disturbance. IEEE Trans Ind Appl 41(3):666–672 32. Rao P, Crow ML, Yang Z (2000) STATCOM control for power system voltage control applications. IEEE Trans Power Delivery 15(4):1311–1317 33. Salle SADL, Reardon D, Leithead WE, Grimble MJ (1990) Review of wind turbine control. Int J Control 52(6):1295–1310 34. Hossain MJ, Pota HR, Ugrinovskii V, Ramos RA (2009 )A novel STATCOM control to augment LVRT capability of fixed-speed induction generators.
However, unless they are converted to pseudo-dynamic sources by being mechanically switched, they are not able to help support voltages during emergencies, when more reactive power support is required. In fact, shunt capacitors suffer from a serious drawback of providing less reactive support at the very time that more support is needed, i. , during a voltage depression volt-ampere-reactive (VAr) output being proportional to the square of the applied voltage. Long switching periods and discrete operation make it difficult for MCCBs to handle the frequently changing loads smoothly and damp out the transient oscillations quickly.
In these cases, some dedicated equipment, such as flexible AC transmission system (FACTS) devices will have to be used as well. , voltage, line impedance and phase angle, and make it possible to control voltage stability dynamically. 1 Voltage Stability and Exciter Control Automatic voltage regulators (AVRs) with synchronous machines are the most important means of voltage control in a power system. A synchronous machine is capable of generating and supplying reactive power within its capability limits to regulate system voltage.