scholarly journals Stand-Alone Hybrid Power Plant Based on SiC Solar PV and Wind Inverters with Smart Spinning Reserve Management

Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 796
Author(s):  
Susana Martín-Arroyo ◽  
José Antonio Cebollero ◽  
Miguel García-Gracia ◽  
Álvaro Llamazares
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Plant Management ◽  
Solar Pv ◽  
Spinning Reserve ◽  
Hybrid Power ◽  
Hybrid Power Plant

Stand-alone hybrid power plants based on renewable energy sources are becoming a more and more interesting alternative. However, their management is a complex task because there are many variables, requirements and restrictions as well as a wide variety of possible scenarios. Though a proper sizing of the power plant is necessary to obtain a competitive cost of the energy, smart management is key to guarantee the power supply at a minimum cost. In this work, a novel hybrid power plant control strategy is designed, implemented and simulated under a wide variety of scenarios. Thereby, the proposed control algorithm aims to achieve maximum integration of renewable energy, reducing the usage of non-renewable generators as much as possible and guaranteeing the stability of the microgrid. Different scenarios and case studies have been analyzed by dynamic simulation to verify the proper operation of the power plant controller. The main novelties of this work are: (i) the stand-alone hybrid power plant management regarding a battery energy storage system as a part of the spinning reserve, (ii) the characterization of the largest loads as non-priority loads, (iii) the minimization of the needed spinning reserve and fuel consumption from diesel generators.

scholarly journals Design Considerations for the Liquid Air Energy Storage System Integrated to Nuclear Steam Cycle

2021 ◽  
Vol 11 (18) ◽  
pp. 8484
Author(s):  
Seok-Ho Song ◽  
Jin-Young Heo ◽  
Jeong-Ik Lee
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Energy Storage System ◽  
Power Sources

A nuclear power plant is one of the power sources that shares a large portion of base-load. However, as the proportion of renewable energy increases, nuclear power plants will be required to generate power more flexibly due to the intermittency of the renewable energy sources. This paper reviews a layout thermally integrating the liquid air energy storage system with a nuclear power plant. To evaluate the performance realistically while optimizing the layout, operating nuclear power plant conditions are used. After revisiting the analysis, the optimized performance of the proposed system is predicted to achieve 59.96% of the round-trip efficiency. However, it is further shown that external environmental conditions could deteriorate the performance. For the design of liquid air energy storage-nuclear power plant integrated systems, both the steam properties of the linked plants and external factors should be considered.

scholarly journals Reducing Hybrid Power Plant Power Losses by Balancing the Load in the Network on the Generation and Consumption Side

2020 ◽  
Vol 20 (3) ◽  
pp. 65-77
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Energy Sources ◽  
Energy Losses ◽  
Hybrid Power ◽  
Storage Technology ◽  
Hybrid Power Plant ◽  
Low Efficiency

An increase in the share of renewable energy sources characterized by intermittent generation leads to a decrease in the quality of electricity and the need to balance the load on the network. The methods used today for balancing the load on the generation side, as well as the use of energy storage technology, do not always provide an effective solution to the balancing problem. This is especially evident when traditional generators are transferred from the base load electricity sources to the reserve ones. The main issue is the increased electric energy losses due to the low efficiency of the power storage technology. Using the most advanced hybrid power plant Gorona del Viento (El Hierro island, Canary archipelago, Spain), which includes traditional and renewable energy sources, as reference, we are describing the methods of balancing the load on the network, which includes balancing, both the electricity generation and consumption. Using the calculation models of the hybrid power plant operating modes, the possibility of implementing various load balancing strategies on the consumption side has been demonstrated, their features have been analyzed, their effectiveness in reducing energy losses has been demonstrated.

scholarly journals Hybrid Power Plant with Storage System: University Research Station

2019 ◽  
Vol 64 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Adam Gubański ◽  
Artur Sobkowiak ◽  
Michał Jasiński ◽  
Dominika Kaczorowska ◽  
Przemysław Janik ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Plant ◽  
Wind Turbine ◽  
Renewable Energy Sources ◽  
Storage System ◽  
University Research ◽  
Research Station ◽  
Storage Unit ◽  
Hybrid Power ◽  
Hybrid Power Plant

The article presents a brief overview of renewable energy sources, microgrids and energy storage problems. The construction and utilisation of university research station to study the operation of a hybrid power plant with an energy storage unit has been described. The tested hybrid power plant consists of a photovoltaic panel and a wind turbine. There are two possible areas of research, one is when the microgrid is connected to the main grid and second when it functions independently as a stand-alone setup. In addition, the model allows to study the characteristics of photovoltaic cells, examine the dependence of generated power on the time, season and angle of the solar panel. In this article, the current-voltage characteristics and influence of solar azimuth angle on cell power, dependence of wind on power generated by the wind turbine, and study of off-grid work of power plant are presented.

Design of Hybrid Portable Underwater Turbine Hydro and Solar Energy Power Plants: Innovation to Use Underwater and Solar Current as Alternative Electricity in Dusun Dongol Sidoarjo

2021 ◽  
Vol 3 (2) ◽  
pp. 93-98
Author(s):  
Anggara Trisna Nugraha ◽  
Dadang Priyambodo
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Solar Energy ◽  
Power Plants ◽  
Flow Direction ◽  
Electrical Energy ◽  
Energy Potential ◽  
Hybrid Power ◽  
Hybrid Power Plant ◽  
The Government

The need for electrical energy in Indonesia continues to increase every year. In line with the increase in the electrification ratio to 100% in 2050, the demand for electrical energy is projected to reach 7 times, namely 1,611 TWh. To meet electricity needs, the government has created a 35 GW program, but one of the largest contributors to power generation fuel is coal with a share of 58% or around 50 GW which is estimated to be exhausted within the next 68 years. For this reason, innovations are needed in terms of fulfilling electrical energy by utilizing renewable energy potential, one of which is hydro energy, which is 45,379 MW from a total resource of 75,091 MW. Therefore, from this potential, innovations related to renewable energy have been created, namely the Hybrid Portable Underwater Turbine Hydro and Solar Energy hybrid power plant. This power plant uses an undersea current as a propulsion which is hybridized with solar power to increase the production of electrical energy. This power plant has the advantage that there is an Underwater turbine design that is resistant to underwater flow and a water flow direction to increase the work efficiency of the underwater turbine. From the test results, the portable Underwater turbine hydro produces 950 W in a day. Solar panels produce 65.6 Watts a day. The total hybrid that can be produced is 1.02 kW a day. In its implementation it can supply loads of up to 900 (VA) such as lamps, fans, TV, etc. This hybrid power plant can be a solution to help meet electricity needs in the area around Dusun Dongol, Sidoarjo through alternative electrical energy innovations.

scholarly journals Increasing Revenue of Nuclear Power Plants With Thermal Storage

2019 ◽  
Vol 142 (4) ◽  
Author(s):  
Katarzyna Borowiec ◽  
Aaron Wysocki ◽  
Samuel Shaner ◽  
Michael S. Greenwood ◽  
Matthew Ellis
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Thermal Storage

Abstract Introducing large amounts of electricity produced from variable renewable energy sources such as wind and solar decreases wholesale electricity price while increasing the volatility of the market. These conditions drive the need for peak-load power generation, while regulation requirements fuel the push for flexible power generation. The increase of variable renewable energy in the market share, along with falling natural gas prices, makes nuclear power plants less competitive. Thermal storage is being considered to increase the nuclear power plant revenue. Thermal storage increases the flexibility of the nuclear plant system without sacrificing its efficiency. There are multiple opportunities to increase the nuclear power plant revenue, including increased capacity payments, arbitrage, and ancillary services. An economic analysis was performed to investigate the revenue increase of the system with thermal storage. The investment cost was assessed, and net present value was evaluated for the considered scenarios. Two system designs were considered in the analysis: a thermal storage system using the existing power conversion infrastructure and an integrated design with thermal storage fully incorporated into the reactor system design. The preliminary analysis showed that introducing a thermal storage system is profitable for some scenarios considered. Profitability depends significantly on the storage size, output flexibility, share of variable renewable energy, and market characteristics.

scholarly journals The impact of Naama's 12 MW Solar Project on the Algerian Southwestern Electricity Network

2020 ◽  
Vol 2 (02) ◽  
pp. 105-114
Author(s):  
Hocine Guentri ◽  
Mokhtar Benasla ◽  
Kabira Ezaeri
Keyword(s):  
Renewable Energy ◽  
Power Plant ◽  
Power Plants ◽  
Wind Farm ◽  
Positive Impact ◽  
Voltage Profile ◽  
Hybrid Power ◽  
Photovoltaic Power ◽  
Hybrid Power Plant ◽  
The Impact

To achieve its renewable energy targets, Algeria has launched several projects, such as the Hassi Rmel solar thermal-gas hybrid power plant, the Taberkine wind farm in Adrar, and several small photovoltaic power plants. Besides, others planned including, the Naama PV plant. In this study, the impact of the expected photovoltaic power plant at the province of Naama on the southwestern network of Algeria. The obtained results indicate that the installation of this plant would have a positive impact on the system by reducing the losses active and improving the voltage profile.

Reliability Index of Wind-Solar Hybrid Power Plants using the Expected Energy Not Supplied Method

2019 ◽  
Vol 8 (4) ◽  
pp. 9449-9456
Keyword(s):  
Power Plant ◽  
Power Systems ◽  
Electricity Market ◽  
Reliability Index ◽  
Power Plants ◽  
Initial Conditions ◽  
Hybrid Plant ◽  
Total Power ◽  
Hybrid Power ◽  
Hybrid Power Plant

This paper proposes the reliability index of wind-solar hybrid power plants using the expected energy not supplied method. The location of this research is wind-solar hybrid power plants Pantai Baru, Bantul, Special Region of Yogyakarta, Indonesia. The method to determine the reliability of the power plant is the expected energy not supplied (EENS) method. This analysis used hybrid plant operational data in 2018. The results of the analysis have been done on the Pantai Baru hybrid power plant about reliability for electric power systems with EENS. The results of this study can be concluded that based on the load duration curve, loads have a load more than the operating kW of the system that is 99 kW. In contrast, the total power contained in the Pantai Baru hybrid power plant is 90 kW. This fact makes the system forced to release the load. The reliability index of the power system in the initial conditions, it produces an EENS value in 2018, resulting in a total value of 2,512% or 449 kW. The EENS value still does not meet the standards set by the National Electricity Market (NEM), which is <0.002% per year. Based on this data, it can be said that the reliability of the New Coast hybrid power generation system in 2018 is in the unreliable category.

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