Robust Stochastic Dynamic Load Dispatch Against Uncertainties

Sasaki, Yuya; Yorino, Naoto; Zoka, Yoshifumi; Wahyudi, F. I.

doi:10.1109/tsg.2017.2690360

Cited by 38 publications

(29 citation statements)

References 23 publications

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“…Traditionally, the reserve margins are used to deal with the inaccuracies in load forecasting techniques implicitly. 20 These operating reserves ensure the real-time power balance and provide sufficient online system capacity whenever required. A brief analysis of flexibility ramping services 25 products 26 is conducted to evaluate the economic and reliability implications for efficient integration of RES.…”

Section: Optimal Power Dispatch Of Renewable Sourcesmentioning

confidence: 99%

“…3,5 Furthermore, these ramp capabilities would be secured five to 20 minutes in advance to maintain the grid security. 20,26 This particular concern has been addressed in References 3 and 4 to obtain optimal results in a real-time scenario.…”

Section: Optimal Power Dispatch Of Renewable Sourcesmentioning

confidence: 99%

“…Among all existing ESUs, there is a substantial interest in battery storage systems due to its fast ramping capabilities. [20][21][22][23]28 A flexible operation strategy with a two-step modelling framework is developed in Reference 29 to evaluate the potential benefits of batteries with RES. In the first step, the stochastic unit commitment model is formulated with day-ahead scheduling.…”

Section: Ed Problems Associated With Batteries and Evmentioning

confidence: 99%

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Recent trends in power management strategies for optimal operation of distributed energy resources in microgrids: A comprehensive review

et al. 2020

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The current era in sustainable development is focused on the rapid integration of renewable energy sources driven by a wide range of socioeconomic objectives. Due to the inherent property of time-varying weather conditions, the intermittent sources, that is, Solar PV and Wind Energy, are considered as variable energy resources. The uncertainty and variability problem of these sources has brought many complications to distributed network operators to operate and control the complex or multi-microgrids with limited fast-ramping resources in order to maintain the power system flexibility. It led many researchers to find an alternative strategy since the conventional approaches are no longer adequate to handle the economic implications of operational decision making. At first, the brief review of various deterministic and probabilistic approaches, stochastic programming and robust optimisation strategies to address the uncertainty of variable energy resources are discussed. Furthermore, in the energy management point of view, the optimal scheduling problem of distributed sources of the microgrid is considered, and a brief review of optimisation models, advanced control strategies and demand response strategies to maximise economic benefits of microgrids are also elaborately presented. Finally, the multiagent-based distributed and decentralised control strategies for seamless integration of distributed generator units are reviewed under various configurations of the power grid along with communication network topologies.

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Section: Optimal Power Dispatch Of Renewable Sourcesmentioning

confidence: 99%

Section: Optimal Power Dispatch Of Renewable Sourcesmentioning

confidence: 99%

Section: Ed Problems Associated With Batteries and Evmentioning

confidence: 99%

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Recent trends in power management strategies for optimal operation of distributed energy resources in microgrids: A comprehensive review

et al. 2020

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“…As such, studies are underway to address these problems. In past papers, we demonstrated the concept of robust reliability against worst cases in uncertain environments, and proposed a method for analyzing and controlling the power system . Meanwhile, there are concerns about power system stability, which is a matter that is related to the reliability problem.…”

Section: Introductionmentioning

confidence: 99%

Proposal of a single‐phase synchronous inverter with noninterference performance for power system stability enhancement and emergent microgrid operation

Sekizaki

Yorino

Sasaki

et al. 2019

Electrical Engineering Japan

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A novel design of a single-phase synchronous inverter (SSI) having noninterference core dynamic performance is proposed, referred to as noninterference core SSI (NIC-SSI) in this paper. The proposed inverter consists of "core" and "shell." This novel design is advantageous for a flexible setting of the core controller to enhance power system stability, which is supported by the shell function for keeping robust synchronizing operation of inverters including microgrid operation. The novel points in this paper are summarized as: (a) the proposed controller enables SSIs to implement directly a desired dynamic characteristic such as a synchronous machine; (b) it can connect any single-phase systems as well as three-phase systems; (c) an islanded single-phase microgrid without rotating machines can be stabilized by multiple SSIs. The proposed controller makes it possible to enhance system stability against increasing uncontrollable renewable energy sources (RESs) and static power conversion devices. The developed SSI realizes flexible use in the demand side operations under normal/faulted grid conditions. Hardware-in-the-loop (HIL) testbed including the proposed digital controller and the real-time simulator validates the effectiveness of the proposed controller in the experimental conditions. K E Y W O R D Spower system stabilization, single-phase microgrid, single-phase synchronous inverter, synchronizing power Recent years have shown a steep rise in the amount of renewable energy sources (RES) being introduced. This has led to difficulties in maintaining the conventional reliability of the power grid 1-3 and other problems. As such, studies are underway to address these problems. In past papers, we demonstrated the concept of robust reliability against worst cases in uncertain environments, and proposed a method for analyz-ing and controlling the power system. 4-6 Meanwhile, there are concerns about power system stability, which is a matter that is related to the reliability problem. The fact that RES gridconnected inverter power sources are increasing means that the number of conventional power sources (i.e., synchronous generators) are decreasing, and this reduction of the inertia of the power grid is a cause of instability. Typically, the synchronizing capability of synchronous generators is vital to the stable operation of the power grid. One technique that has been

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“…Use of all available control techniques including demand response/load curtailment is adopted as various smart grid projects [3]. Development of robust and reliable generation dispatch is extremely of importance to effectively treat the uncertainties due to fully utilize controllable generators [4,5].…”

Section: Introductionmentioning

confidence: 99%

Real-time dynamic economic load dispatch integrated with renewable energy curtailment

Sasaki¹,

Tsurumi²,

Yorino³

et al. 2019

Journal of International Council on Electrical Engineering

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Recent power system operations are faced with the difficulties due to large penetration levels of intermitted renewable energy sources (RESs), for example, photovoltaic power (PV) generations and wind-turbine (WT) generations. Operations of a large number of uncontrollable RES also cause an unforeseen issue for the reliability in power system operation. To tackle the issue, this paper proposes a novel real-time generation schedule (GS) integrated with RES' power curtailment. The proposed real-time GS become to effectively compute the outputs of the associated generating units so as to meet the required electricity load. The GS computation is frequently updated every 5-min in real-time operation. The proposed approach is applied for real-time dynamic economic load dispatch for a real-time GS that completely treats the limited controllable energy resources under the uncertainties. Furthermore, real-time PV forecasting with their covariance matrices of the prediction errors is effectively utilized in the approach. In case of a unforeseen situation when the estimated electricity load cannot match the controllable unit's capability, the approach can be detect a minimum amount of supply-demand mismatch in advance, and can manage it reliably for the considerable time horizon.

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Robust Stochastic Dynamic Load Dispatch Against Uncertainties

Cited by 38 publications

References 23 publications

Recent trends in power management strategies for optimal operation of distributed energy resources in microgrids: A comprehensive review

Recent trends in power management strategies for optimal operation of distributed energy resources in microgrids: A comprehensive review

Proposal of a single‐phase synchronous inverter with noninterference performance for power system stability enhancement and emergent microgrid operation

Real-time dynamic economic load dispatch integrated with renewable energy curtailment

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