A Review of Non-isolated BDC Topologies for Renewable Energy Systems
The Department of Electrical and Electronics Engineering is glad to announce that the paper titled “A Comparative Analysis of Non-Isolated Bi-directional Converters for Energy Storage Applications”, authored by Dr Tarkeshwar Mahto, Dr Somesh Vinayak Tewari, Dr Ramanjaneya Reddy, Assistant Professors and Ms K Mounika Nagabushanam, PhD Scholar has been published in the IOPs Engineering Research Express having an impact factor of 1.7. The paper explores various non-isolated bi-directional DC-DC converter topologies for renewable energy systems, providing insights into their performance and suitability for different applications.
Abstract
Bi-directional DC-DC converters (BDC) are required for power flow regulation between storage devices and DC buses in renewable energy-based distributed generation systems. The fundamental requirements of the BDC are simple structure, reduced switching components, a wide range of voltage gain, low voltage stress, high efficiency, and reduced size. There are different BDC topologies for various applications based on the requirements in the literature. Various BDCs are categorised according to their impedance networks. Isolated BDC converters are large due to high-frequency transformers and hence used for static energy storage applications whereas non-isolated BDC is lightweight and suitable for dynamic applications like electric vehicles. This paper reviews types of non-isolated BDC topologies. The performance of five non-isolated BDC converters under steady-state conditions is evaluated using theoretical analysis. On this basis, the suitability of BDC for different applications is discussed. Further advantages and limitations of converters are discussed by using comparative analysis. The optimisation of BDC for distributed generation systems from the perspectives of wide voltage gain, low electromagnetic interference, and low cost with higher efficiency is identified. Theoretical analysis of the converters is validated by simulating 200W converters in MATLAB Simulink.
The main challenges with energy storage systems are frequent failures due to frequent charging and discharging and the volume of the power converter. The team plans to:
- To design a converter with fewer components, low switching stresses, high power transfer capability, and higher efficiency to deliver continuous current to the energy storage system.
- To work on various control techniques to keep the DC link voltage of the propulsion system constant.
Link to the article
- Published in Departmental News, EEE NEWS, News, Research News
A Crash Course in Decoding Language with Ms Andalib Mahmud
The Department of Literature and Languages invited Ms Andalib Mahmud, distinguished psychologist and master practitioner and trainer of Neuro-Linguistic Programming (NLP), to deliver an insightful guest lecture at SRM University-AP to students enrolled in the open elective course “Decoding Language,” taught by Dr Srabani Basu on May 02, 2024. Ms. Mahmud captivated the audience by elucidating the theory and practice of ‘reframing,’ a behavioural intervention technique utilised in NLP. She expounded on the intricacies of reframing, its techniques, objectives, and efficacy in modifying behaviour patterns. To enhance understanding, Ms Mahmud engaged the students in stimulating group activities, transforming the lecture into an experiential learning session.
The event not only provided students with theoretical knowledge but also offered practical insight into the application of NLP techniques. Ms Mahmud’s expertise and engaging teaching style left a lasting impression on the students, enriching their understanding of language decoding and behavioural interventions. The lecture was a resounding success, inspiring students to delve deeper into the field of NLP and its applications in language and communication.
- Published in Departmental News, English Current Happenings, News
Easwari School of Liberal Arts Facilitates Transformative Academia-Social Sector Dialogue
The Easwari School of Liberal Arts hosted the highly anticipated “Academia-Social Sector Dialogue” event, aiming to foster collaboration between academia and the social sector. The event brought together experts, social actors, scholars, practitioners, and students to engage in insightful discussions about the intersection of education and social sector development.
The event, convened by Prof. Vandana Swami, brought together a distinguished array of social sector leaders, Academicians from various states across India, deans, faculties, and students. It was a day of enlightening discussions and knowledge exchange, aiming to bridge the gap between academia and the social sector.
At the heart of this dialogue was a commitment to nurturing well-rounded, socially conscious leaders of tomorrow. The event provided a platform for students to engage directly with eminent figures from the social sector, fostering a deeper understanding of real-world challenges and opportunities.
The dialogue saw participation from leading social actors, including Liby Johnson (Gram Vikas, Odisha), Ronak Shah (Seva Mandir, Udaipur), Nishant Aggarwal (Donyi Polo Cultural and Charitable Trust, Arunachal Pradesh), Swapna Sarangi (Foundation for Ecological Security, Odisha), Gayatri Menon (Independent Researcher, Public Health Foundation of India, Bengaluru and Academic luminaries, such as Suraj Jacob (Azim Premji University, Bengaluru) and Manu Mathai (World Resources Institute, Bengaluru) Yamini Aiyar, Former President, Center for Policy Research, New Delhi, added depth to the dialogue, offering nuanced perspectives on the intersection of academia and the social sector.
Prof. Vishnupad, Dean of Easwari School of Liberal Arts, expressed his satisfaction with the event’s outcomes, stating, “We are delighted to have facilitated this enriching exchange between academia and the social sector. The discussions were not only insightful but also generative, paving the way for potential future collaborations between students and social sector organisations that can bring about positive change in the society.”
A highlight of the event was the keynote speech by Amitabh Behar, Global Executive Director of OXFAM. Behar’s insights sparked discussions among attendees, leading to reflection and action-oriented dialogue on caste, gender, and economic inequality. This prompted introspection and dialogue on the responsibilities of civil society in addressing these urgent issues.
The event featured thought-provoking panel discussions on two key themes: “Social Sector and the Indian State: Challenges and Opportunities” and “Role of Social Sector in Liberal Arts Education.” Panellists deliberated on the complexities and possibilities within the social sector, exploring ways to address challenges and leverage opportunities for societal progress. The dialogue was not only engaging but also fruitful, laying the groundwork for potential collaborative efforts in the future.
Furthermore, discussions on the Easwari School of Liberal Arts Summer Immersion Programme underscored the institution’s commitment to experiential learning and social impact.
Prof. Vandana Swami, Professor, Easwari School of Liberal Arts remarked, “Academia-Social Sector Dialogue epitomises SRM University-AP’s ethos of excellence, innovation, and social responsibility. It serves as a testament to the university’s unwavering dedication to shaping future leaders who are not only academically proficient but also socially conscious and empathetic global citizens”.
- Published in Departmental News, History Current Happenings, Liberal Arts News, Media Studies, News
Paaridhan: Weaving a Tapestry of Culture and Ethnicity!
“India is a place where colour is doubly bright. Pinks that scald your eyes, blues you could drown in.” – Kiran Millwood Hargrave
This was a reality at SRM University-AP on May 01, 2024, as the university transformed into a vibrant hub of cultural pride and unity as it celebrated “Paaridhaan”. Students dazzled the campus with an array of performances, fashion walks, and activities, each showcasing the rich tapestry of our diverse backgrounds. The campus was engulfed in a colourful hue as students attended the celebration adorned in traditional ethnic wear.
This remarkable event, organised under the aegis of the Directorate of Student Affairs, included breathtaking dance acts, soulful musical performances, and a fashion show that captivated all in attendance. This celebration brought the university together and left lasting memories of a community united in its diversity.
- Published in Departmental News, News, student affairs news