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引用次数: 0
摘要
通过增加电动汽车(EV)的数量来实现低碳环境,电动汽车不仅要从电网中消耗电能来充电,还要向电网输送电能,这在负荷频率控制中可以发挥重要作用。然而,电动汽车根据其充电状态(SoC)参与频率调节,这将导致不确定性。为了管理这些不确定性,引入了电动汽车聚合器(EVA)概念。电动汽车车主可根据自己的需求任意参与 EVA 提供的需求响应计划。因此,EVA 会为电力系统运营商计算上下功率储备。任何频率偏差发生后,EVA 都会向每辆电动汽车发送适当的指令,要求其消耗或向系统注入电力。此外,电力系统中还存在不同部分之间的通信延迟、不确定性和非线性。为了克服这些问题,本研究提出了一种基于反馈理论和人工神经网络的新型鲁棒负载频率控制器,该控制器是通过非线性多机电力系统设计的。对 IEEE 39 总线电力系统的仿真结果表明,与其他方法相比,所提出的控制器能更理想地调节频率。
Frequency regulation controller for multi-area interconnected power system
By increasing the number of electric vehicles (EVs) to achieve a less carbon environment, not only they consume power from the grid to be charged, but also do they deliver power to the grid, and this can play a significant role in load frequency control. However, EVs take part in frequency regulation based on their state of charge (SoC) which will cause uncertainties. In order to manage these uncertainties, EV aggregator (EVA) concept has been introduced. The EV owner participates in the demand response program provided by the EVA arbitrarily considering her/his requirements. Accordingly, EVA calculates the up and down power reserve for the power system operator. Following any frequency deviation, EVA sends the proper commands to each EV to consume or to inject power to the system. There are also communication delays between different parts, uncertainties, and non-linearities that existed in the power system. To overcome these issues, this study proposes a new robust load frequency controller based on feedback theory and artificial neural network which is designed through the non-linear multi-machine power system. Simulation results on IEEE 39-bus power system show that the proposed controller regulates frequency more desirably in comparison with other methods.
期刊介绍:
IET Generation, Transmission & Distribution is intended as a forum for the publication and discussion of current practice and future developments in electric power generation, transmission and distribution. Practical papers in which examples of good present practice can be described and disseminated are particularly sought. Papers of high technical merit relying on mathematical arguments and computation will be considered, but authors are asked to relegate, as far as possible, the details of analysis to an appendix.
The scope of IET Generation, Transmission & Distribution includes the following:
Design of transmission and distribution systems
Operation and control of power generation
Power system management, planning and economics
Power system operation, protection and control
Power system measurement and modelling
Computer applications and computational intelligence in power flexible AC or DC transmission systems
Special Issues. Current Call for papers:
Next Generation of Synchrophasor-based Power System Monitoring, Operation and Control - https://digital-library.theiet.org/files/IET_GTD_CFP_NGSPSMOC.pdf