In the future, the individual entities of microgrids such as distributed generators and smart loads may need to determine their power generation or consumption in more economic ways. Intelligent agents can help the de...In the future, the individual entities of microgrids such as distributed generators and smart loads may need to determine their power generation or consumption in more economic ways. Intelligent agents can help the decision-making procedure of the entities by intelligent algorithms and state-of-the-art communication with central controller and other local agents. This paper presents the development of atable-top microgrid control system using multi-agent systems and also the demonstration of demand response programs during power shortage. In our table-top system, agents are implemented using microcontrollers and Zigbee wireless communication technology is applied for efficient data communication in the multi-agent system. The power system models of distributed generators and loads are implemented in the real-time simulator using Opal-RT system. The whole test system that includes real-time system simulation and agent hardware is implemented in the hardware-in-the-loop simulation framework. The performance of the developed system is tested for emergency demand response cases.展开更多
This paper proposes a novel dual layered multi agent system (MAS) based control system for the use in microgrid operations. In developing a smarter grid capable of withstanding disturbances and/or outages and providin...This paper proposes a novel dual layered multi agent system (MAS) based control system for the use in microgrid operations. In developing a smarter grid capable of withstanding disturbances and/or outages and providing quality service to the consumers, reliable microgrid control architecture is vital. The innovative microgrid control system proposed, makes the microgrid capable of isolating the local grid from effects of any upstream disturbances in the main utility grid by operating disconnected from the main utility via islanding, and it allows the most critical local loads to be supplied by any, available, local power source during such islanded operation. The proposed MAS control architecture is developed using the JADE platform and it is used to control a test network simulated in MATLAB. The results of these simulations show the capability of developing MAS based reliable control mechanism for islanding and load management of microgrids based on the proposed concept.展开更多
Microgrid systems are built to integrate a generation mix of solar and wind renewable energy resources that are generally intermittent in nature. This paper presents a novel decentralized multi-agent system to securel...Microgrid systems are built to integrate a generation mix of solar and wind renewable energy resources that are generally intermittent in nature. This paper presents a novel decentralized multi-agent system to securely operate microgrids in real-time while maintaining generation</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> load balance. Agents provide a normal operation in a grid-connected mode and a contingency operation in an islanded mode for fault handling. Fault handling is especially critical in microgrid operation to simulate possible contingencies and microgrid outages in a real-world scenario. A robust agent design has been implemented using MATLAB</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">Simulink and Java Agent Development Framework technologies to simulate microgrids with load management and distributed generators control. The microgrid of the German Jordanian University has been used for simulation for Summer and Winter photovoltaic generation and load profiles. The results show agent capabilities to operate microgrid in real-time and its ability to coordinate and adjust generation and load. In a simulated fault incident, agents coordinate and adjust to a normal operation in 0.012 seconds, a negligible time for microgrid restoration. This clearly shows that the multi-agent system is a viable solution to operate MG in real-time.展开更多
以能源交易为背景,针对多微电网合作中的运行优化问题,提出了基于Nash议价模型的合作博弈策略,旨在实现微电网之间的合作,以最大化整体利益,同时考虑能源交易和成本优化。首先,将各微电网视为博弈参与者,构建了基于Nash议价理论的多微...以能源交易为背景,针对多微电网合作中的运行优化问题,提出了基于Nash议价模型的合作博弈策略,旨在实现微电网之间的合作,以最大化整体利益,同时考虑能源交易和成本优化。首先,将各微电网视为博弈参与者,构建了基于Nash议价理论的多微电网合作博弈模型,通过选择能源交易策略和运行策略来影响其能源成本和效益。其次,采用交替方向乘子法(alternating direction multiplier method,ADMM)求解此多参与者优化问题,通过将原问题分解为子问题并引入乘子变量来实现迭代求解。最后,在每次迭代中,各微电网根据其局部信息更新能源交易和运行策略,并利用乘子变量进行信息交换和博弈协调,以达到全局一致性。结果表明,该策略在多微电网合作中能够实现整体性能的提升,有效促进了可再生能源的消纳水平,平衡了各参与者的利益,同时降低了能源成本。展开更多
文摘In the future, the individual entities of microgrids such as distributed generators and smart loads may need to determine their power generation or consumption in more economic ways. Intelligent agents can help the decision-making procedure of the entities by intelligent algorithms and state-of-the-art communication with central controller and other local agents. This paper presents the development of atable-top microgrid control system using multi-agent systems and also the demonstration of demand response programs during power shortage. In our table-top system, agents are implemented using microcontrollers and Zigbee wireless communication technology is applied for efficient data communication in the multi-agent system. The power system models of distributed generators and loads are implemented in the real-time simulator using Opal-RT system. The whole test system that includes real-time system simulation and agent hardware is implemented in the hardware-in-the-loop simulation framework. The performance of the developed system is tested for emergency demand response cases.
文摘This paper proposes a novel dual layered multi agent system (MAS) based control system for the use in microgrid operations. In developing a smarter grid capable of withstanding disturbances and/or outages and providing quality service to the consumers, reliable microgrid control architecture is vital. The innovative microgrid control system proposed, makes the microgrid capable of isolating the local grid from effects of any upstream disturbances in the main utility grid by operating disconnected from the main utility via islanding, and it allows the most critical local loads to be supplied by any, available, local power source during such islanded operation. The proposed MAS control architecture is developed using the JADE platform and it is used to control a test network simulated in MATLAB. The results of these simulations show the capability of developing MAS based reliable control mechanism for islanding and load management of microgrids based on the proposed concept.
文摘Microgrid systems are built to integrate a generation mix of solar and wind renewable energy resources that are generally intermittent in nature. This paper presents a novel decentralized multi-agent system to securely operate microgrids in real-time while maintaining generation</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> load balance. Agents provide a normal operation in a grid-connected mode and a contingency operation in an islanded mode for fault handling. Fault handling is especially critical in microgrid operation to simulate possible contingencies and microgrid outages in a real-world scenario. A robust agent design has been implemented using MATLAB</span><span style="font-family:Verdana;">-</span><span style="font-family:Verdana;">Simulink and Java Agent Development Framework technologies to simulate microgrids with load management and distributed generators control. The microgrid of the German Jordanian University has been used for simulation for Summer and Winter photovoltaic generation and load profiles. The results show agent capabilities to operate microgrid in real-time and its ability to coordinate and adjust generation and load. In a simulated fault incident, agents coordinate and adjust to a normal operation in 0.012 seconds, a negligible time for microgrid restoration. This clearly shows that the multi-agent system is a viable solution to operate MG in real-time.
文摘以能源交易为背景,针对多微电网合作中的运行优化问题,提出了基于Nash议价模型的合作博弈策略,旨在实现微电网之间的合作,以最大化整体利益,同时考虑能源交易和成本优化。首先,将各微电网视为博弈参与者,构建了基于Nash议价理论的多微电网合作博弈模型,通过选择能源交易策略和运行策略来影响其能源成本和效益。其次,采用交替方向乘子法(alternating direction multiplier method,ADMM)求解此多参与者优化问题,通过将原问题分解为子问题并引入乘子变量来实现迭代求解。最后,在每次迭代中,各微电网根据其局部信息更新能源交易和运行策略,并利用乘子变量进行信息交换和博弈协调,以达到全局一致性。结果表明,该策略在多微电网合作中能够实现整体性能的提升,有效促进了可再生能源的消纳水平,平衡了各参与者的利益,同时降低了能源成本。
