A Novel Control Strategy for Transmission Level Interconnection of Large Scale Renewable Energy Generations

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

This thesis illustrates novel voltage control strategies applied for large scale renewable energy generations in order to overcome the issues related to the integration in the electric grid. Designed control strategies are applied to large scale wind parks and photovoltaic power plants connected to the grid at transmission level and are compared to the existing voltage control strategies. The designed online supervisory voltage control scheme for the photovoltaic power plants allows them to participate in the voltage control, by means of reactive power injection or absorption depending on the grid conditions. As for the designed adaptive secondary voltage control for the wind parks, it also utilizes the capacity of voltage support provided by doubly-fed induction generators. In addition, to enhance the transient stability of the system, automatic gain controllers are included. Both algorithms take into account the intermittency of wind and solar irradiance in order to maximize the reactive power support and minimize the loading of individual generation units. The effectiveness of the proposed algorithms is tested in a weak power grid with low X/R ratio at different short circuit ratios. To evaluate the dynamic performance of the proposed algorithms the system is stressed to contingencies, such as sudden load change and three-phase to ground fault. As the designed strategies rely on a wide area measurement system, impact of communication time delay is taken into consideration.

روابط وملفات

التعريف والنوع

رقم الوثيقة

01513fcb-bc81-4392-bdfa-b4463f4eced2

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

2283949_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Khachatur Torchyan","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Michael Weidong Xiao","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

A Novel Control Strategy for Transmission Level Interconnection of Large Scale Renewable Energy Generations

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

Online Supervisory Voltage Control Scheme Reactive Power Injection Voltage Control Strategies Renewable Energy Large Scale Wind Parks Photovoltaic Power Plants

إشراف وإعداد

الإشراف

Michael Weidong Xiao

الإعداد

Khachatur Torchyan

الاقتباسات الببليوغرافية