Optimal power dispatch capability and reliability analysis of hybrid renewable energy system

K. U. Maheshwari, P. V. Lakshmi, A. Nagaraju, Subrahmanyam Kothagundu
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Abstract

These days, using solar and wind energy resources is much more cost-effective and appealing. The rapid depletion and growing expense of non-renewable energy supplies resulted in the development of alternative energy sources that utilize renewable energy sources. In recent times, hybrid renewable energy algorithms have often been connected to wind and solar power systems. The primary objective of this work (PWBHPS) is to determine the power dispatch capacity of a PV-wind-battery hybrid power system. In the modern electric power market, the PWBHPS's power dispatch capacity needs to be explicitly specified at the beginning of every dispatching time interval in order to collaborate with the transmission system operator (TSO). Energy storage is a workable option for efficiently integrating renewable energy sources into the system. A recently developed storage device called the vanadium redox flow battery (VRFB) may have certain advantages in large-scale grid-connected applications. State-of-charge monitoring provides extra insights into battery performance by displaying increased capacity utilization and longer cycle times, both of which extend the life of the cells. This study looks at the minimum-max technique of individual solar energy, wind energy, and a combined PV wind battery hybrid power system to size a VRB battery for application in renewable energy systems. Individual wind and solar systems need larger battery capacities for consistent, constant power output; hybrid systems require batteries with lower ratings. An optimal charging mechanism is proposed and explored through MATLAB simulations.
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混合可再生能源系统的最佳电力调度能力和可靠性分析
如今,利用太阳能和风能资源更具成本效益和吸引力。不可再生能源的迅速枯竭和日益增长的费用导致了利用可再生能源的替代能源的发展。近来,混合可再生能源算法通常与风能和太阳能发电系统相连接。这项工作(PWBHPS)的主要目标是确定光伏-风能-电池混合发电系统的电力调度能力。在现代电力市场中,PWBHPS 的电力调度能力需要在每个调度时间间隔开始时明确指定,以便与输电系统运营商(TSO)合作。储能是将可再生能源有效整合到系统中的可行方案。最近开发的一种名为钒氧化还原液流电池(VRFB)的储能设备在大规模并网应用中可能具有某些优势。充电状态监测通过显示更高的容量利用率和更长的循环时间(两者都能延长电池的寿命),为电池性能提供了额外的洞察力。本研究考察了单个太阳能、风能和光伏风能电池混合动力系统的最小-最大技术,以确定可再生能源系统中应用的 VRB 电池的大小。单个风能和太阳能系统需要较大的电池容量,以获得持续稳定的电力输出;混合动力系统则需要额定值较低的电池。我们提出了一种最佳充电机制,并通过 MATLAB 仿真进行了探索。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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