Challenges in Planning and Operation of Large‐Scale Renewable Energy Resources Such as Solar and Wind

2021 ◽  
pp. 263-279
Author(s):  
J. Vishnupriyan ◽  
A. Dhanasekaran
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Planning And Operation

Assessment of bioenergy development potential in agricultural enterprises

2020 ◽  
pp. 165-171
Author(s):  
Iryna Hryhoruk
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Agricultural Waste ◽  
General Structure ◽  
Geographical Location ◽  
Economic Assessment ◽  
Energy Resources ◽  
Industrial Complex ◽  
Renewable Energy Resources ◽  
Energy Potential

Exhaustion of traditional energy resources, their uneven geographical location, and catastrophic changes in the environment necessitate the transition to renewable energy resources. Moreover, Ukraine's economy is critically dependent on energy exports, and in some cases, the dependence is not only economic but also political, which in itself poses a threat to national security. One of the ways to solve this problem is the large-scale introduction and use of renewable energy resources, bioenergy in particular. The article summarizes and offers methods for assessing the energy potential of agriculture. In our country, a significant amount of biomass is produced every year, which remains unused. A significant part is disposed of due to incineration, which significantly harms the environment and does not allow earning additional funds. It is investigated that the bioenergy potential of agriculture depends on the geographical distribution and varies in each region of Ukraine. Studies have shown that as of 2019 the smallest share in the total amount of conventional fuel that can be obtained from agricultural waste and products suitable for energy production accounts for Zakarpattya region - 172.5 thousand tons. (0.5% of the total) and Chernivtsi region - 291.3 thousand tons. (0.9%). Poltava region has the greatest potential - 2652.2 thousand tons. (7.8%) and Vinnytsia - 2623.7 thousand tons. (7.7%). It should be noted that the use of the energy potential of biomass in Ukraine can be called unsatisfactory. The share of biomass in the provision of primary energy consumption is very small. For bioenergy to occupy its niche in the general structure of the agro-industrial complex, it is necessary to develop mechanisms for its stimulation. In addition, an effective strategy for the development of the bioenergy sector of agriculture is needed. The article considers the general energy potential of agriculture, its indicative structure. The analysis is also made in terms of areas. In addition, an economic assessment of the possible use of existing potential is identified.

scholarly journals Technical Analysis Feasibility Study on Smart Microgrid System in Sekolah Tinggi Teknik PLN

2018 ◽  
Vol 31 ◽  
pp. 02011 ◽  
Author(s):  
Heri Suyanto
Keyword(s):  
Renewable Energy ◽  
Feasibility Study ◽  
Large Scale ◽  
Pilot Project ◽  
Technical Aspect ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Electricity System ◽  
High Penetration ◽  
Quality And Reliability

Nowadays application of new and renewable energy as main resource of power plant has greatly increased. High penetration of renewable energy into the grid will influence the quality and reliability of the electricity system, due to the intermittent characteristic of new and renewable energy resources. Smart grid or microgrid technology has the ability to deal with this intermittent characteristic especially if these renewable energy resources integrated to grid in large scale, so it can improve the reliability and efficiency of the grid. We plan to implement smart microgrid system at Sekolah Tinggi Teknik PLN as a pilot project. Before the pilot project start, the feasibility study must be conducted. In this feasibility study, the renewable energy resources and load characteristic at the site will be measured. Then the technical aspect of this feasibility study will be analyzed. This paper explains that analysis of ths feasibility study.

Production of Utilizable Energy from Renewable Resources: Mechanism, Machinery and Effect on Environment

2015 ◽  
Vol 1116 ◽  
pp. 1-32 ◽  
Author(s):  
Neelima Mahato ◽  
Mohd Omaish Ansari ◽  
Moo Hwan Cho
Keyword(s):  
Renewable Energy ◽  
Renewable Resources ◽  
Large Scale ◽  
Renewable Energy Sources ◽  
Local Environment ◽  
Biomass Energy ◽  
Energy Resources ◽  
Human Populations ◽  
Renewable Energy Resources ◽  
Natural Habitats

The renewable energy sources had been known to humankind since the very beginning of the human civilization, though practiced in very primitive forms. The first civilization and subsequent greater civilizations, came up, existed, and flourished at or near river valley/basins. Rivers provided water for irrigation, domestic utilization, transportation; overall development of the entire civilization. In the latter years, the increase in the human population and certain revolutionary inventions and discoveries like fire, the wheel, and domestication of cattle and animals led the movement and spread of the human populations in the other parts of the globe far from river irrigated lands. Humans learnt to utilize underground waters and harvest rainwater for living and survival. In the course of development, there also increased demand for more energy and its storage so that it can be utilized as and when required. This brought humankind to discover the laws of thermodynamics, emergence of combustion engines, electromagnetic induction, electricity and storage devices, such as batteries and supercapacitors. The development has been revolutionized since last few centuries with increasing demand of energy with growing industries and a faster life. Nowadays, because of massive exploitation of fossil resources for fuel and electricity, and concerns of global warming, exploring renewable energy alternatives are gaining momentum. Of many renewable resources, viz., sun, wind, water, geothermal, biomass, etc., the biomass energy is the most widely studied one in terms of both, published literature and wide social acceptance across the globe followed by solar and wind energy.The chapter presents the potential alternatives to non-renewable energy resources, mechanism and machinery to draw and exploit the energy in the usable or utilizable form; past, present, recent progresses and future scope of the ongoing researches on this subject. The chapter also deals with the relative merits or pros and cons of the massive and large scale installation of machinery to produce electricity from some of the noteworthy renewable energy resources, such as, wind, water and sun, which is affecting the local environment or natural habitats, flora and fauna; overall influence on the delicate balance of the ecosystem.

scholarly journals Transitioning to a sustainable development framework for bioenergy in Malaysia: policy suggestions to catalyse the utilisation of palm oil mill residues

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Siti Fatihah Salleh ◽  
Mohd Eqwan Mohd Roslan ◽  
Adlansyah Abd Rahman ◽  
Abdul Halim Shamsuddin ◽  
Tuan Ab Rashid Tuan Abdullah ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Large Scale ◽  
Energy Development ◽  
Energy Resources ◽  
Successful Implementation ◽  
Solar Pv ◽  
Renewable Energy Resources ◽  
Development Framework ◽  
Renewable Energy Development

Abstract Background The global commitment to climate change mitigation enforces the worldwide development of renewable energy sources. Therefore, various studies have investigated the growth of renewable energy in Malaysia, most commonly based on biogas and hydropower. In this article, the dynamics of Malaysia’s renewable energy development is critically examined by using the latest official national reports and other reliable resources. Results The study reveals the influencing factors that shape renewable energy growth in a developing country endowed with substantial biomass resources, such as Malaysia. Likewise, it evaluates the evolution of renewable energy in the electricity sector. In 2017, renewable energy represented about 3.5% of the Malaysian electricity generation mix with 1122 MW of installed capacity. A closer look into the renewable energy resources, i.e. biomass, biogas, solar and small hydro power, revealed that over 47% of the grid-connected power generation came from solar photovoltaic (PV) energy. While solar PV capacity continues to accelerate, the development of other renewable resources, especially biomass, is seeing growth at a significantly slower pace. This article investigates the underlying causes of the skewed development rate as well as the potential strategies that may be adopted to promote a diversification of renewable energy resources. In light of this, introduction of a new national bioenergy policy is proposed, through which four essential programmes could be implemented: (i) enhanced bioenergy conversion efficiency and waste management, (ii) biomass co-firing in coal power plants, (iii) conversion of biogas to biomethane and bio-compressed natural gas (bio-CNG), (iv) large-scale biomass power plants. A total of 4487 MW of additional power could be connected to the grid upon successful implementation of a large-scale biomass power plant programme. Conclusions The establishment of a comprehensive and inclusive national bioenergy policy will lead towards a sustainable future of renewable energy development in Malaysia.

scholarly journals Large-Scale Grid Integration of Renewable Energy Resources with a Double Synchronous Controller

2019 ◽  
Vol 9 (24) ◽  
pp. 5548
Author(s):  
Majid Mehrasa ◽  
Edris Pouresmaeil ◽  
Hamid Soltani ◽  
Frede Blaabjerg ◽  
Maria R. A. Calado ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Large Scale ◽  
Dynamic Models ◽  
Transfer Functions ◽  
Power Grid ◽  
Energy Resources ◽  
Mechanical Power ◽  
Stable Operation ◽  
Renewable Energy Resources ◽  
Virtual Inertia

This paper provides virtual inertia and mechanical power-based double synchronous controller (DSC) for power converters based on the d- and q-components of the converter current to assure the stable operation of the grid with the penetration of large-scale renewable energy resources (RERs). The DSC is projected based on emulating both the inertia and mechanical power variables of the synchronous generators (SGs), and its performance is compared with a non-synchronous controller (NSC) that is without these emulations. The main contributions of the DSC are providing a large margin of stability for the power grid with a wide area of low and high values of virtual inertia, also improving significantly power grid stability (PGS) with changing properly the embedded virtual variables of inertia, mechanical power, and also mechanical power error. Also, decoupling features of the proposed DSC in which both d and q components are completely involved with the characteristics of SGs as well as the relationship between the interfaced converter and dynamic models of SGs are other important contributions of the DSC over the existing control methods. Embedding some coefficients for the proposed DSC to show its robustness against the unknown intrinsic property of parameters is another contribution in this paper. Moreover, several transfer functions are achieved and analyzed that confirm a more stable performance of the emulated controller in comparison with the NSC for power-sharing characteristics. Simulation results confirm the superiority of the proposed DSC in comparison with other existing control techniques, e.g., the NSC techniques.

scholarly journals PENGEMBANGAN TEKNOLOGI SISTEM SMART MICROGRID DI SEKOLAH TINGGI TEKNIK PLN

Sutet ◽  
2018 ◽  
Vol 7 (1) ◽  
pp. 63-67
Author(s):  
Redaksi Tim Jurnal
Keyword(s):  
Renewable Energy ◽  
Feasibility Study ◽  
Large Scale ◽  
Pilot Project ◽  
Technical Aspect ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Plant Resource ◽  
Electricity System ◽  
High Penetration

Nowadays application of new and renewable energy as power plan renewable energy resources as power plant resource more and more increased. High penetration of renewable energy into the grid will influence the quality and reliability of the electricity system, due to the intermittent characteristic of renewable energy resources. The smart grid or microgrid technology has the ability to deal with this intermittent characteristic especially while these renewable energy resources integrated to grid in large scale, so its can improve the reliability and efficiency of that grid. We plan to implementation of smart microgrid system at School High Tehnik of PLN as a pilot project. Before the pilot project design, the feasibility study must be conducted. In this feasibility study, the renewable energy resources and load characteristic at the site will be measure. Then the technical aspect of this feasibility study will be analyze.This paper explained the analysis of thus feasibility study.

Electrical Vehicles: A Blessing or Challenge for Smart Grid in Presence of Renewable Energy Resources

2015 ◽  
Vol 735 ◽  
pp. 331-335
Author(s):  
Naila Zareen ◽  
Mohd Wazir Mustafa ◽  
Azriyenni
Keyword(s):  
Renewable Energy ◽  
Power Systems ◽  
Large Scale ◽  
Fossil Fuels ◽  
Energy Resources ◽  
Stable Operation ◽  
Renewable Energy Resources ◽  
Distribution Grid ◽  
Fuel Price ◽  
The Impact

Environment deterioration, energy shortage and ever rising fuel price makes green transportation a necessity. Being an alternative to fossil fuels vehicles, Electric Vehicles (EVs) exemplify the most popular approach of electrification to a substantial portion of the transportation sector. Recently, usage of renewable energy resources (RERs) is also increased because of its economic and environmental concerns over traditional resources in the new electric power systems. Variable reliability aspects of RERs increase the complexity of safe and stable operation of grid. Therefore, EV will further increase this uncertainty and variability when being connected randomly to the grid in large scale. This paper not only highlights the EV’s related challenges/issues and presents a brief comprehensive review of recent researches. But, also demonstrates a simulation methodology for analyzing the impact of EVs under various charging scenarios on an independent distribution grid in presence of RERs. The results show the creation of new peak loads which in some cases may exceed the grid capacity and threaten the stability and reliability.

Sign in / Sign up

Export Citation Format

Share Document