scholarly journals Voltage stability analysis of wind power plant integration into transmission network of Nepal

2021 ◽  
Vol 1 (1) ◽  
pp. 32-44
Author(s):  
Sagar Dharel ◽  
Rabindra Maharjan
Keyword(s):  
Stability Analysis ◽  
Power Plant ◽  
Power System ◽  
Wind Power ◽  
Alternative Energy ◽  
Voltage Stability ◽  
Stability Study ◽  
Simulation Software ◽  
System Stability ◽  
Wind Power Plant

Government of Nepal has realized that wind energy could become a major source of alternative energy to solve energy crisis in the country as well as serve the purpose of energy mix. Various studies have identified several locations with potential for wind power generation in Nepal. The integration of wind power plant to the national grid, however, raises concerns regarding the power system stability. The voltage stability of the grid is a key issue, the effect on which increases with the increase in wind power penetration in the grid. This study performs voltage stability analysis due to high penetration of wind power in Integrated Nepalese Power System (INPS). Both steady state and dynamic stability study is performed using the power system simulation software DigSILENT/PowerFactory for different types of wind turbine generators.

scholarly journals Study of Voltage Stability for 22kV Power System Connected with Lamtakhong Wind Power Plant, Thailand

2013 ◽  
Vol 34 ◽  
pp. 951-963 ◽  
Author(s):  
Krischonme Bhumkittipich ◽  
Chanasith Jan-Ngurn
Keyword(s):  
Power Plant ◽  
Power System ◽  
Wind Power ◽  
Voltage Stability ◽  
Wind Power Plant

scholarly journals Voltage Stability Analysis of an Interconnected Power System Considering Varied Output of Wind Power Plants

2021 ◽  
Vol 56 (3) ◽  
pp. 111-123
Author(s):  
Muhammad Bachtiar Nappu ◽  
Ardiaty Arief ◽  
Ainun Maulidah
Keyword(s):  
Power Plant ◽  
Power System ◽  
Wind Power ◽  
Power Plants ◽  
Voltage Stability ◽  
Wind Power Plant ◽  
Voltage Profile ◽  
Interconnected Power System ◽  
Wind Power Plants ◽  
Ieee Standard

A sound power system must have voltage values at all buses that do not exceed the tolerance limit of ± 5% with small power losses. Voltage instability can be caused by interference or sudden power generation outage from the system. Indonesia's Southern Sulawesi power system has been interconnected with wind power plants located in Sidrap Regency and Jeneponto Regency. Wind speed energy used by wind power plants to generate electricity vary and not always constant. Hence, this can cause fluctuations and produce varied outputs that will affect the voltage profile and stability of the Southern Sulawesi interconnection system. Therefore, it is essential to assess the voltage stability of the Southern Sulawesi power system after the integration of Sidrap and Jeneponto WPPs. First, this study analyzes the voltage profile of the Southern Sulawesi interconnection system voltage after integrating the Sidrap wind power plants and Jeneponto Wind Power Plant during the peak day load and peak night load. Second, the study assesses the voltage stability with a varied output power of both Sidrap and Jeneponto Wind Power Plant. After integrating Sidrap and Jeneponto Wind Power Plants, the results showed that the voltage values at all system buses are stable and within the IEEE standard (between 0.95 p.u. and 1.05 p.u.). In addition, the voltages of the Southern Sulawesi power system with various outputs of both WPPs are still stable and within the IEEE standard.

Scheduling Model of Power System Based on Forecasting Error of Wind Power Plant Output

2021 ◽  
Author(s):  
Kai Sun ◽  
Zhenhai Dou ◽  
Yaling Zhu ◽  
Qingling Liao ◽  
Shuqian Si ◽  
...  
Keyword(s):  
Power Plant ◽  
Power System ◽  
Wind Power ◽  
Wind Power Plant ◽  
Forecasting Error ◽  
Scheduling Model

scholarly journals Novel Control Approach with FRT capability for Grid connected HYBRID distributed generation system using ANN controller based DVR

2021 ◽  
Vol 9 (12) ◽  
pp. 2002-2021
Author(s):  
Ashok Babu Valluri
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Voltage Stability ◽  
Short Circuit ◽  
Control Technique ◽  
Wind Power Plant ◽  
Generation System ◽  
Alternative Source ◽  
Fault Ride Through ◽  
Distribution Generation

Abstract: For ever increasing power demand and depletion of conventional energy resources, Renewable Energy Systems (RES) became an alternative source of electricity to reduce the load stress on the Power Grid. Although several control & design modifications are presented in past literature to improve reliability & performance of through Distribution Generation (DG) technologies, they always fall short in some aspects of voltage stability and Fault Ride Through (FRT) capabilities. The main aim of the project is Protecting Critical load from Grid side altercations which occur due to harmonics generated by DG’s and Short circuit faults near to load center. This project proposes the application of a Dynamic Voltage Restorer (DVR) to enhance the power quality and improve the Fault Ride Through (FRT) capability of a three-phase medium-voltage network connected to a hybrid distribution generation (DG) system. In this hybrid farm, the Photo Voltaic (PV) plant via single-stage energy conversion (DC-AC inverter) & DFIG (Doubly-Fed Induction Generator) based Wind power plant are connected to the same Point of Common Coupling (PCC). For MPPT of wind power plant, we use Pitch Angle Control (PAC) technique. This topology allows Perturb and observe (P&O) based MPPT algorithm for PV plant through connection of the DG (Distribution generation) system to the public grid through a step-up transformer. In addition, the DVR based on Artificial Neural Network (ANN) controller is connected to the same PCC. Different fault condition scenarios are tested for improving the efficiency and the quality of the power supply and compliance with the requirements of the sensitive Load. The efficiency of this control technique is that it enhances restoration and harmonics suppression capabilities of DVR which are far superior than that of PI controller used in existing model. Keywords: RES, DG, LVRT, FRT, PV, DFIG, PCC, MPPT, P&O, DVR, PI, ANN, THD, Voltage stability.

scholarly journals Analysis of power system inertia estimation in high wind power plant integration scenarios

2019 ◽  
Vol 13 (15) ◽  
pp. 2807-2816 ◽  
Author(s):  
Ana Fernández‐Guillamón ◽  
Antonio Vigueras‐Rodríguez ◽  
Ángel Molina‐García
Keyword(s):  
Power Plant ◽  
Power System ◽  
Wind Power ◽  
Wind Power Plant ◽  
High Wind ◽  
System Inertia
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