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Development and analysis of hybrid renewable energy system for offshore oil and gas rigs
Tee, Jing Zhong (2022) Development and analysis of hybrid renewable energy system for offshore oil and gas rigs. PhD thesis, University of Glasgow.
Over the years, the decline of capital expenditure (CAPEX) on offshore wind turbine generation (WTG) and battery energy storage systems (BESS) has led to great interest in the electrification of offshore oil and gas (O&G) platforms with renewable sources. This will reduce the carbon footprint as the on-board gas turbine generation (GTG) can be removed. The state of the art has presented that O&G platforms integrated with BESS and an energy management system (EMS) is able to enhance output power quality to load, in the face of sequential events of dynamic loading and fluctuations in wind [11]. However, the proposed technique required a low-pass filter, which removed high frequencies in the voltage and frequency analysis, especially in the transient period. As such, it is expected that the efficiency is reduced due to power losses in the system.
The main focus of this thesis is to develop an optimised EMS for transient stability enhancement, in the presence of simultaneous changes in dynamic loads and stochasticity in wind speed, for offshore O&G platforms integrated with WTG. There are five main contributions in this thesis. First, a power stability study has demonstrated a reduction in transient deviation of output power for systems without and with BESS respectively [51]. Second, a transient stability analysis is presented for variations in BESS sizing using a commercial software, ETAP. The simulation has also shown that the proposed system, which has incorporated 2 MW of BESS, improved transient stability and met the IEC standards on maximum voltage and frequency deviations [61]. Third, an optimisation of transient stability was shown for an increased capacity in BESS from 2 MW to a total of 4 MW BESS [62]. The techno-economic feasibility of the proposed system is carried out, which shows that the BESS has the lowest operational expendture (OPEX) as compared with GTG or WTG [61], [62]. Last but not the least, an optimised transient stability solution is demonstrated with dynamic loading and stochasticity in wind speed. An EMS embedded in the BESS is developed and the simulation results for transient stability are compared against the current state of art. The superiority of the proposed EMS was demonstrated with a smaller voltage and frequency deviation, which improved the output power quality with variations in load variation and wind intermittency. In addition, it is developed with considerations to lower the overall cost of the system and provide decarbonisation for long-term continuous operation.
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Integration of renewable energy with urban design : based on the examples of the solar photovoltaics and micro wind turbines
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Large-scale integration of renewable energy sources in the future energy system of Colombia
In recent years, governments around the world have been increasing their attention on energy supply policies. These policies are focused towards three main energy goals that define the energy trilemma: security of supply, affordability and environmental sustainability. In the case of Colombia, the diversification of the energy mix including larger shares of renewable energy sources (RES) is a significant part of the national energy strategy towards a sustainable and more secure energy system. Historically, the country has relied on the intensive use of hydropower and fossil fuels as the main energy sources. Colombia has a huge renewables potential, and therefore the exploration of different pathways for their integration is required. The aim of this study is to assess the integration of variable renewable technologies and flexibility options into national energy systems by analysing future scenarios (towards 2030 and 2040). EnergyPLAN was the modelling tool employed for building the country’s model and simulate the reference year scenario and future alternatives. The study was divided in three research topics for its analysis: initially, the impacts of increasing shares of variable renewable sources in the energy system towards 2030 were analysed using five alternatives scenarios. Subsequently, a techno-economic optimisation was performed in order to assess the combined effects of large-scale energy storage and cross-border interconnections in the power system. Finally, the impact of road transport electrification in supporting the energy transition in the longer term (2040) was evaluated for the national system. The results showed that an increase in the shares of wind, solar and bioenergy combined with energy storage, electric vehicles and a strong interconnected market could achieve significant reductions in CO2 emissions and savings in the total fuel consumption of the country. The results of this work will be of much assistance to policymakers that are developing a roadmap towards low carbon energy systems in Colombia and other countries with similar potential and characteristics.
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It has been noted that renewable energy is integral in the global fight against climate change to decarbonize the energy sector (Singh et al., 2019). However, it is important to understand if there are tradeoffs for forgoing fossil fuels that will affect country development, especially when considering LMI countries.
the present paper evaluates the relationship between renewable energy production. and national economic growth. This study adds to the relevant literature by using a. larger international sample of countries and more recent data than past studies, and by evaluating multiple types of renewable energy sources, including.
I have prepared this thesis during my enrollment as a PhD student at the Department of Eco-nomics and Business, Aarhus University, in the period from January 2011 to March 2015. My PhD project has been funded by CFEM (Center for Foundations of Electronic Markets) which in turn is funded by the Danish Council of Strategic Research.
consume fossil fuels, and can enhance a nation's energy security. As a result, recently more significant amounts of renewable energy are being integrated into conventional power grids. The research reported in this dissertation primarily investigates the reliability-constrained planning and operations of electric power systems including
RENEWABLE ENERGY BASED SMART MICROGRID FOR RURAL ELECTRIFICATION A THESIS SUBMITTED TO THE UNIVERSITY OF MANCHESTER FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN THE FACULTY OF SCIENCE & ENGINEERING 2020 Jane Namaganda-Kiyimba Department of Electrical and Electronic Engineering
systems", Journal of Modern Power Systems and Clean Energy, vol. 7, no. 2, pp. 357{368, 2019. Location in thesis: Chapter 2 and Chapter 3 Student contribution to work: 85% Co-author signatures and dates: (only signatures of Tyrone and Herbert, my PhD supervisors, Shenglong Yu, my colleague, are available upon the submission time) Details of work 3:
PDF | This PhD thesis focuses on issues related to the financing, the determinants and the barriers of renewable energy (RE) in the energy transition.... | Find, read and cite all the research you ...
One of the most promising applications of renewable energy technology is the installation of hybrid energy systems, especially in remote areas, where both grid extension and fuel costs are expensive. Different energy sources and converters are integrated for extended energy usage to meet sustained load demands under varying natural conditions.
This dissertation analysed two of the largest economic entities in the world: China and the United States, which play significant roles in the development of renewable energy.
Within the next century, we must tackle the dual challenges of continuing to meet the increasing global demand for energy services while stabilizing global temperatures to mitigate the effects of anthropogenic climate change. Doing so will require a major restructuring of all energy services on a global scale.
in renewable energy generated worldwide, there remains immense variation amongst nations in the amount of electricity being generated by renewable sources. In this dissertation I focus on understanding the variation in renewable energy generation as well as renewable energy regulatory frameworks.
The foundation for this thesis was laid in 2003/04, when I studied Environmental Sustainability at the University of Edinburgh in Scotland, UK. I followed courses on sustainability, which included lessons on renewable energy. The topic renewable energy
Tee, Jing Zhong (2022) Development and analysis of hybrid renewable energy system for offshore oil and gas rigs. PhD thesis, University of Glasgow. Full text available as: PDF Download (8MB) Abstract. Over the years, the decline of capital expenditure (CAPEX) on offshore wind turbine generation (WTG) and battery energy storage systems (BESS ...
PHD THESIS - DISTRIBUTED ELECTRICITY GENERATION IN BULGARIA Acknowledgements . The writing of this thesis has been a long journey and I could not have completed it without ... Potential for renewable energy sources in Europe.....33 Figure 8. Project phases .....76 Figure 9. Summary of the main authorizations required for DG projects in Bulgaria ...
This thesis explores effective ways of combining renewable energy with urban development through analyzing the relationship between urban form and renewable energy production. It focuses on two renewable technologies: solar photovoltaics (PV) and micro-wind turbines, both to produce electricity, at the urban scale.
This thesis provides an in-depth understanding of how public acceptance of renewable energy (RE) in Great Britain (GB) can be described, understood and explained. It identifies key determinants of public acceptance of RE across multiple dimensions of acceptance: localised responses to RE infrastructure (community acceptance) and generalised attitudes to technologies (socio-political acceptance).
In recent years, governments around the world have been increasing their attention on energy supply policies. These policies are focused towards three main energy goals that define the energy trilemma: security of supply, affordability and environmental sustainability. In the case of Colombia, the diversification of the energy mix including larger shares of renewable energy sources (RES) is a ...
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proactive in formulating energy policies. Renewable portfolio standards, tax initiatives to attract energy companies, and a regional cap and trade program are but a few examples of sub-national policies. State and region-specific analysis facilitates a more accurate understanding of how energy concerns are predicted to impact economic growth at the
region, this thesis is set to explore how renewable energy sources can affect and thus potentially change the conceptualization of energy security. The Nordic region has a high integration of renewable energy sources in the energy mix and a high level of integration and cooperation across borders.
The growing need for energy by the human society and depletion of conventional energy sources demands a renewable, safe, infinite, low-cost and omnipresent energy source. One of ... 2016) for the PhD student. 6- Details of Supervisors Prof. Paul W.M. Blom Room number: 5118.0005 Tel number: +31503634376 E-mail: [email protected]
Dissertation Titles 2016-1998 Year Author Title 2016 Chiu, Yin Energy Union Governance in the European Union and Sustainability of Scottish Electricity Systems. 2016 Heyward, Connor Community Energy in Ireland: Potential for Sustainable Rural Development. 2016 Jindal, Shaan On Their Moral High Horse: Does Moral Identity Predict Greater