The unified chaotic system contains the Lorenz system and the Chen system as two dual systems at the two extremes of its parameter spectrum. This paper presents the design of bang bang controller for unified system an...The unified chaotic system contains the Lorenz system and the Chen system as two dual systems at the two extremes of its parameter spectrum. This paper presents the design of bang bang controller for unified system and multitude of numerical experiments under various control parameters. Numerical experiments meet the theoretic proof perfectly and convincingly demonstrated the controller can be effectively used for unified systems with uncertainty of the equilibrium points. The method enriches the applications of chaotic control.展开更多
为了利用直流大功率快速可控的特性来提高电力系统暂态稳定性,设计了基于Bang-Bang控制的直流大信号暂态稳定控制器,包括控制策略的设计和关键参数的选择。详细分析了暂态过程中换流母线电压和系统短路比对直流功率提升能力的影响,提出...为了利用直流大功率快速可控的特性来提高电力系统暂态稳定性,设计了基于Bang-Bang控制的直流大信号暂态稳定控制器,包括控制策略的设计和关键参数的选择。详细分析了暂态过程中换流母线电压和系统短路比对直流功率提升能力的影响,提出了直流暂态稳定控制的功率阈值选取原则。在三机系统模型中研究了直流功率控制的上升/回降速率和死区阈值的选择对控制性能的影响。在南方电网直流控制保护详细模型中测试了暂态稳定控制器的控制效果,结果表明:同一运行条件下,当无控制器投入时,系统会出现暂态功角失稳;当在±800 k V楚穗直流中加入控制器后,系统能保持暂态功角稳定,验证了控制器能有效提高系统的暂态稳定性。展开更多
基金Supported by the National Natural Science Foundation of China(50209012)
文摘The unified chaotic system contains the Lorenz system and the Chen system as two dual systems at the two extremes of its parameter spectrum. This paper presents the design of bang bang controller for unified system and multitude of numerical experiments under various control parameters. Numerical experiments meet the theoretic proof perfectly and convincingly demonstrated the controller can be effectively used for unified systems with uncertainty of the equilibrium points. The method enriches the applications of chaotic control.
文摘为了利用直流大功率快速可控的特性来提高电力系统暂态稳定性,设计了基于Bang-Bang控制的直流大信号暂态稳定控制器,包括控制策略的设计和关键参数的选择。详细分析了暂态过程中换流母线电压和系统短路比对直流功率提升能力的影响,提出了直流暂态稳定控制的功率阈值选取原则。在三机系统模型中研究了直流功率控制的上升/回降速率和死区阈值的选择对控制性能的影响。在南方电网直流控制保护详细模型中测试了暂态稳定控制器的控制效果,结果表明:同一运行条件下,当无控制器投入时,系统会出现暂态功角失稳;当在±800 k V楚穗直流中加入控制器后,系统能保持暂态功角稳定,验证了控制器能有效提高系统的暂态稳定性。
