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: A market-oriented energy management system for a hybrid power system composed of a wind energy conversion system and a battery energy storage system that expands the BESS lifetime by applying typical and practical constraints in the MPC problem on both the daily number of cycles and depth of discharge.
Abstract: This paper presents a market-oriented energy management system (EMS) for a hybrid power system composed of a wind energy conversion system and a battery energy storage system (BESS) The EMS is designed as a real-time model predictive control (MPC) system The EMS dispatches the BESS to achieve the maximum net profit from the deregulated electricity market Furthermore, the EMS aims at expanding the BESS lifetime by applying typical and practical constraints in the MPC problem on both the daily number of cycles (DNC) and depth of discharge (DOD) The MPC constraint optimizer is designed to tune the lifetime constraints optimally It guarantees the optimal economic profit by finding the optimal DNC and DOD to achieve the maximum market revenue from energy arbitrage with the minimal expended-life cost The effectiveness of this work is verified by comparison with a conventional MPC used in previous works Simulation is conducted using real wind power and market data in Alberta, Canada
95 citations
12 Jun 2005
TL;DR: In this article, an economic evaluation of a hybrid wind/photovoltaic/fuel cell generation system for a typical home in the Pacific Northwest is performed using a graphical user interface programmed in MATLAB.
Abstract: An economic evaluation of a hybrid wind/photovoltaic/fuel cell generation system for a typical home in the Pacific Northwest is performed. In this configuration the combination of a fuel cell stack, an electrolyzer, and a hydrogen storage tank is used for the energy storage system. This system is compared to a traditional hybrid energy system with battery storage. A computer program has been developed to size system components in order to match the load of the site in the most cost effective way. A cost of electricity and an overall system cost are also calculated for each configuration. The study was performed using a graphical user interface programmed in MATLAB.
94 citations
TL;DR: In this paper, a Monte Carlo model of the combined GB gas and electricity network was developed to determine the reliability of the energy infrastructure, which is used to facilitate reliability analysis of integrated energy systems.
94 citations
TL;DR: In this article, a modular multilevel cascade converter (MMCC) is proposed as a power conversion circuit for battery energy storage systems (BESSs) to counter the power grid unstable due to their output fluctuations.
Abstract: Renewable energy sources such as wind turbine and photovoltaic power generators may make the power grid unstable due to their output fluctuations. Battery energy storage systems (BESSs) are being considered as a countermeasure for this issue. A modular multilevel cascade converter (MMCC) is expected as a power conversion circuit for BESSs because each bridge cell can control the state of charge of a battery unit, independent of that of another one, and the harmonic current generated is low enough to eliminate the ac filter, normally installed on conventional two-level converters, from the MMCC. This paper describes the development of a real-scale (500 kW) single-star-bridge-cell-based MMCC for BESSs and reports successful test results obtained from a downscaled grid model and a 6.6-kV real-scale distribution line.
94 citations
TL;DR: In this paper, a case study of battery storage with a hypothetical hourly RTP tariff based on the Spanish electricity market pool of 2013 is shown, showing that the storage system with the costs expected in the near future (0.045€/kW/h cycled ) is not profitable compared to the system without storage.
94 citations