Topic
Stand-alone power system
About: Stand-alone power system is a research topic. Over the lifetime, 8650 publications have been published within this topic receiving 192397 citations. The topic is also known as: Stand-alone photovoltaic power system.
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TL;DR: In this article, a simplified model of the plant is used to optimize the size of its components that produces the maximum yearly profit, and an important feature of the model is that the minimum level of the electricity production of the block of power can be fixed.
53 citations
TL;DR: In this paper, the authors proposed a comprehensive framework in which design and operation of the electricity grid are considered simultaneously and the uncertainties in the wind and solar generation as well as demand are systematically taken into account.
Abstract: Renewable energies can play an important role in mitigating the emissions associated with electricity power generation and diversification of the energy supply. The challenge is that renewable resources such as wind and solar have intermittent production patterns and their incorporation into conventional electricity grids will increase the degree of uncertainty. The present research proposes a comprehensive framework in which design and operation of the electricity grid are considered simultaneously and the uncertainties in the wind and solar generation as well as demand are systematically taken into account. The case of retrofitting the current UK electricity grid to include 50% renewable power generation by 2030 was posed as the demonstrating example. The research problem was formulated as a piece-wise linear mixed integer optimization under uncertainty and solved using CPLEX v12.0 in GAMS. The results suggested that it is possible to retrofit the electricity grid using renewable generators while optimizing the overall profitability and ensuring the secure supply of electricity. It was also observed that at the price of higher computational costs, stochastic optimization generates more realistic and robust solutions for the design and operation of the smart electricity grid.
53 citations
TL;DR: An MILP formulation is developed including surrogate models based on the detailed NLP steady state models that solves the tradeoffs between investment and production capacity for underused capacity in production facilities that store solar or wind energy in the form of chemicals.
53 citations
TL;DR: In this paper, the design and testing of a 10kWp photovoltaic (PV) system and its performance results after the first 6 months of operation are presented.
53 citations
TL;DR: In this article, the feasibility of generating electricity from jet-stream winds has been investigated, and computer-based optimization studies indicate that a 100 MW power station based on tethered aerodynamic generating platforms located at a jet stream altitude would generate electricity at capital and operating costs that are competitive with other methods of electricity generation.
Abstract: The feasibility of generating electricity from jet-stream winds has been investigated. Analysis of published meteorological data indicates that annual average power densities approaching 20 kW/m2 are available in the jet-stream altitudes over the complete west-east extent of Australia at a latitude of about 30° S. Computer-based optimization studies indicate that a 100 MW power station based on tethered aerodynamic generating platforms located at a jet-stream altitude would generate electricity at capital and operating costs that are competitive with other methods of electricity generation. The design of the tethered aerodynamic generating platform requires a high lift-to-weight ratio platform housing high power-to-weight ratio diffuser-augmented wind turbines and tethered by a high strength-to-weight ratio cable. Key design parameters include the turbine power coefficient and power-drag coefficient, the rated speed, and the stall speed. The required turbine area is determined primarily by the power coefficient and the rated speed. The cable weight depends directly on the drag associated with the maximum (rated) power generation which follows from the choice of rated speed. The wing area of the aerodynamic platform is fixed usually by the stall speed.
53 citations