Coordinated Active Power Dispatch for a Microgrid via Distributed Lambda Iteration

Hu, Jianqiang; Chen, Michael Z. Q.; Cao, Jinde; Guerrero, Josep M.

doi:10.1109/jetcas.2017.2676019

Cited by 39 publications

(19 citation statements)

References 44 publications

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“…However, consideration of dynamics associated with these subsystems could lead to new research areas where the power electronics would play an important role with regard to the storage, distribution, and transformation of electrical energy [20][21][22][23][24][25][26][27][28]. Some approximations in this direction are presented in [29,30], where dynamics associated with actuators, power stage, and electric power generation are considered in mechatronic systems.…”

Section: Introductionmentioning

confidence: 99%

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

et al. 2017

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The trajectory tracking task in a wheeled mobile robot (WMR) is solved by proposing a three-level hierarchical controller that considers the mathematical model of the mechanical structure (differential drive WMR), actuators (DC motors), and power stage (DC/DC Buck power converters). The highest hierarchical level is a kinematic control for the mechanical structure; the medium level includes two controllers based on differential flatness for the actuators; and the lowest hierarchical level consists of two average controllers also based on differential flatness for the power stage. In order to experimentally validate the feasibility of the proposed control scheme, the hierarchical controller is implemented via a Σ-Δ-modulator in a differential drive WMR prototype that we have built. Such an implementation is achieved by using MATLAB-Simulink and the real-time interface ControlDesk together with a DS1104 board. The experimental results show the effectiveness and robustness of the proposed control scheme.

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Section: Introductionmentioning

confidence: 99%

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

et al. 2017

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“…A seven-bus microgrid was considered to evaluate the proposed distributed lambda iteration. A new distributed approach for optimal power dispatch was proposed to organize the operation of many micro-units in the microgrid [13]. The distributed consensus algorithm was used for multi-agents and lambda iteration algorithm was utilized for the proposed seven-bus microgrid for economic dispatch problem.…”

Section: Literature Survey On Economic Dispatch Of Hybrid Systems / Mmentioning

confidence: 99%

A review to economic dispatch of hybrid microgrids

Vankadara¹,

Raglend²

2019

Serb J Electr Eng

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Hybrid Microgrids are being widespread for power generation in remote locations. The improvement in non-conventional energy sources and rise in the price of existing electrical energy production sources led to the advancement of hybrid renewable sources. Economic characteristics of these technologies are adequately capable to include in emerging power generation. Advances and research in solar, wind and other non-conventional energy sources are required to continue for improving their performance, creating techniques for exactly forecasting their outputs and reliably integrating with other conventional sources used for generation. Economic dispatch is being taken into consideration as the optimal output of the electricity generation facilities. These are to be met as per the load at the lowest possible cost. The problem on Economic Dispatch (ED) and different technical constraints considering power balance in the network satisfying the objective are to be formulated. This paper presents a brief review on economic dispatch of hybrid microgrids.

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“…Distributed control strategies are also proposed to deal with the aforementioned issues, which only require the local information or limited communication [17][18][19][20][21][22]. A coordinated adaptive droop control was proposed for a DC microgrid to optimize its power distribution [18].…”

Section: Introductionmentioning

confidence: 99%

“…However, a leader agent was also required for this solution. A distributed economic dispatch algorithm was proposed for a microgrid [20]. However, the load demand and exchange power of the tie-line needed to be discovered first in a centralized or distributed way.…”

Section: Introductionmentioning

confidence: 99%

“…However, the solution may cause unexpected oscillation because the power mismatch is unavoidable during the optimization process. Moreover, in most of the distributed EPD algorithms [17,19,20,22], the load nodes and the uncontrollable generator nodes need to be designed with the capability of communication, since their information is required for the power imbalance estimation, which increases the complexity and costs of the system.…”

Section: Introductionmentioning

confidence: 99%

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Distributed Economic Power Dispatch and Bus Voltage Control for Droop-Controlled DC Microgrids

Zeng

Gao

et al. 2019

Energies

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This paper proposes a distributed economic power dispatch (EPD) and bus voltage control solution for droop-controlled DC microgrids. For the proposed solution, a local power controller and a local voltage controller are added for each distributed generator (DG) to overcome the limitations of the conventional droop control. The power controller generates the first voltage correction term by comparing the local output power of DG with the reference instruction generated by the proposed distributed EPD algorithm, and thus, it can reduce the operation cost of the microgrid by optimally sharing the load demand among all the participating DGs. The voltage controller generates the second voltage correction term by comparing the nominal DC bus voltage value with the average bus voltage generated by the proposed distributed average bus voltage observation (ABVO) algorithm, and thus, it can realize the global bus voltage regulation of the DC microgrid. In contrast with conventional solutions, the control solution can distribute the computational and communication burdens among all the DGs working in parallel, which is more flexible, scalable, and robust against single-point failure. The effectiveness of the proposed control solution is demonstrated through simulation studies.

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Coordinated Active Power Dispatch for a Microgrid via Distributed Lambda Iteration

Cited by 39 publications

References 44 publications

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

Tracking Control for Mobile Robots Considering the Dynamics of All Their Subsystems: Experimental Implementation

A review to economic dispatch of hybrid microgrids

Distributed Economic Power Dispatch and Bus Voltage Control for Droop-Controlled DC Microgrids

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