By Jahangir Hossain, Hemanshu Roy Pota (auth.)
This ebook makes the realm of integration of renewable strength into the prevailing electrical energy grid available to engineers and researchers. it is a self-contained textual content which has versions of energy method units and keep an eye on thought essential to comprehend and music controllers in use at the moment. the hot examine in renewable power integration is placed into point of view through evaluating the swap within the process dynamics compared to the conventional electrical energy grid. The emergence of the voltage balance challenge is influenced via vast examples. numerous easy methods to mitigate this challenge are mentioned bringing out their advantages in actual fact. As an answer to the voltage balance challenge, the booklet covers using evidence units and uncomplicated keep watch over equipment. an incredible contribution of this publication is to introduce complicated keep watch over equipment for voltage balance. It covers the applying of output suggestions tools with a unique emphasis on the right way to sure modelling uncertainties and using powerful keep watch over conception to layout controllers for useful energy platforms. specific emphasis is given to designing controllers for proof units to enhance low-voltage ride-through potential of induction turbines. As in most cases PV is hooked up in low voltage distribution zone, this publication additionally presents a scientific keep watch over layout for the PV unit in distribution platforms. the speculation is abundantly illustrated with huge IEEE try platforms with a number of turbines and dynamic load. Controllers are designed utilizing Matlab and proven utilizing complete process versions in PSSE.
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Additional resources for Robust Control for Grid Voltage Stability: High Penetration of Renewable Energy: Interfacing Conventional and Renewable Power Generation Resources
Example text
Such a phenomenon is relatively fast with the time frame of interest being in the order of one second or less. Voltage instability may also be associated with converter transformer tap-changer controls which is a considerably slower phenomenon. Recent developments in HVDC technology (voltage-source converters and capacitor-commutated converters) have significantly increased the limits for the stable operation of HVDC links in weak systems compared with the limits for line-commutated converters.
The most frequently used voltage control devices in distribution grids are tap-changer transformers that change their turns ratio but switched capacitors and reactors are also applied. However, a number of recent developments challenge this traditional approach. One of these is the increased use of WTs for generating electricity. When large-scale wind farms are connected to the grids, it will be difficult to maintain node voltages using the traditional reactive power control devices. In these cases, some dedicated equipment, such as flexible AC transmission system (FACTS) devices will have to be used as well.
4 Wind Power Generation and Power System Stability In most countries, the amount of wind power generation integrated into large-scale electrical power systems is only a small part of the total power system load. However, the amount of electricity generated by wind turbines (WTs) is continuously increasing. Therefore, wind power penetration in electrical power systems will increase in future and will start to replace the output of conventional synchronous generators. As a result, it may also begin to influence overall power system behaviour.
