Grid code compliance study of wind power plant using power system simulator for engineering (PSS/E)

Thumbnail Image

Files

master_Hafeez_Zubair_2025.pdf (6.45 MB)

URL

Journal Title

Journal ISSN

Volume Title

School of Electrical Engineering | Master's thesis
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.

Authors

Date

2025-11-22

Department

Major/Subject

Energy Systems and Markets

Mcode

Degree programme

Master's Programme in Advanced Energy Solutions
Kehittyneiden energiaratkaisujen maisteriohjelma
Magisterprogrammet i avancerade energilösningar

Language

en

Pages

94

Series

Abstract

The operational dynamics and stability of modern grid have been influenced significantly by the increasing penetration of converter based renewable energy resources, particularly by wind power plants. Like other countries, power sector regulatory authority, National Electric and Power Regulatory Authority (NEPRA), of Pakistan has developed comprehensive technical standards called grid code, to ensure the reliable, secure and stable operation if transmission network, owned and operated by National Transmission and Despatch Company (NTDC), considering the integration of renewables. However, literature shows a limited scope of research in the area of compliance studies, especially dynamic analysis, for wind energy integration into NTDC network. This research work analyzes impact, both in steady and dynamic state in accordance with NEPRA grid code, of 400 MW wind power plant assumed to be connected in southern side of transmission network, the part of country which is rich in wind energy potential. The analysis is simulation based carried out on Power System Simulator for Engineering (PSS/E), a comprehensive power system analysis tool developed by Siemens, by using authentic base case of NTDC prepared to represent summer peak load scenario in year 2028. Full converter based Type 4 wind turbine is assumed and modeled for simulations, and for dynamic analysis part, Western Electricity Coordinating Council (WECC) generic model (WT4) is used. Thesis work is based three types of analysis, load flow, contingency, and dynamic stability analysis, where load flow and contingency analysis fall under steady state analysis. Results of steady state analysis confirmed that all the transformers and transmission lines operated well within their rated capacities. Also, the bus voltages remained within allowable limits, outlined in grid code criteria. Dynamic stability analysis demonstrated that voltage recovery criteria is being met and frequency fluctuations are effectively damped under all 3-phase and 1-phase disturbances. Based on comprehensive analysis it is concluded that under observation transmission network is strong enough to accommodate wind generator of target capacity without violating standards of grid code. This research creates a tested simulation based framework for integrating renewable energy sources and presents valuable insights to help Pakistan move toward a stable, compliant, and sustainable power system dominated by converter driven clean energy technologies.

Description

Supervisor

Pouresmaeil, Edris

Thesis advisor

Zafar, Muhammad Hamza

Keywords

grid code, wind energy generation, wind turbine, load flow analysis, contingency analysis, dynamic stability analysis, frequency, power flow

Other note

Citation

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-202512159174

Collections

[dipl] Sähkötekniikan korkeakoulu / ELEC