Fast time-varying phasor analysis in the balanced three-phase large electric power system

Venkatasubramanian, V.; Schättler, Heinz; Zaborszky, J.

doi:10.1109/9.471228

Cited by 121 publications

(89 citation statements)

References 5 publications

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“…As in [16] and [21], we set dIij dt = 0 and dIji dt = 0. Consequently, from (1c) and (1d), one gets the QSL modelĪ…”

Section: Qsl Modelmentioning

confidence: 99%

“…Moreover, when a DGU is plugged in or out, only DGUs physically connected to it have to retune their local controllers. As in [4], we exploit Quasi-Stationary Line (QSL) approximations of line dynamics [16] and use structured Lyapunov functions for mapping control design into a Linear Matrix Inequality (LMI) problem. This also allows to automatically deny plugging-in/out requests if these operations spoil the stability of the ImG.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Decentralized Scalable Approach to Voltage Control of DC Islanded Microgrids

Tucci

Riverso

Vasquez

et al. 2016

IEEE Trans. Contr. Syst. Technol.

160

233

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We propose a new decentralized control scheme for DC Islanded microGrids (ImGs) composed by several Distributed Generation Units (DGUs) with a general interconnection topology. Each local controller regulates to a reference value the voltage of the Point of Common Coupling (PCC) of the corresponding DGU. Notably, off-line control design is conducted in a Plug-and-Play (PnP) fashion meaning that (i) the possibility of adding/removing a DGU without spoiling stability of the overall ImG is checked through an optimization problem; (ii) when a DGU is plugged in or out at most neighbouring DGUs have to update their controllers and (iii) the synthesis of a local controller uses only information on the corresponding DGU and lines connected to it. This guarantee total scalability of control synthesis as the ImG size grows or DGU gets replaced. Yes, under mild approximations of line dynamics, we formally guarantee stability of the overall closed-loop ImG. The performance of the proposed controllers is analyzed simulating different scenarios in PSCAD.

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“…As in [16] and [21], we set dIij dt = 0 and dIji dt = 0. Consequently, from (1c) and (1d), one gets the QSL modelĪ…”

Section: Qsl Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Decentralized Scalable Approach to Voltage Control of DC Islanded Microgrids

Tucci

Riverso

Vasquez

et al. 2016

IEEE Trans. Contr. Syst. Technol.

160

233

View full text Add to dashboard Cite

show abstract

“…The causes of these reactive power-voltage instabilities are multifold. Most generally, the inherent assumption in the classical model that the electromagnetic variables do not change right after the disturbance underlying their decoupling from electromechanical variables no longer holds, since the rate of change of the voltages approaches infinity [77]. This also pushes the validity of phasors to its limits, requiring partial differential equations (PDEs) representation.…”

Section: B Frequently Used Models and The Underlying Assumptionsmentioning

confidence: 99%

“…On the other hand, if nodal angles deviate, their corresponding change with time is used as a state variable which is frequency and does vary over time. This inconsistency could be confusing and creates open questions when one attempts to capture highly unusual emerging phenomena in electric power systems [77], [78].…”

Section: General Dae Model Of Today's Electric Power Systemsmentioning

confidence: 99%

From Hierarchical to Open Access Electric Power Systems

Ilić

2007

Proc. IEEE

123

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show abstract

“…Moreover, when a DGU is plugged in or out, only DGUs physically connected to it have to retune their local controllers. As in [3], we exploit QuasiStationary Line (QSL) approximations of line dynamics [16] and use structured Lyapunov functions for mapping control design into a Linear Matrix Inequality (LMI) problem. This also allows to automatically deny plugging in/out requests if these operations spoil the stability of the ImG.…”

Section: Introductionmentioning

confidence: 99%

Voltage control of DC islanded microgrids: A decentralized scalable approach

Tucci

Riverso

Vasquez

et al. 2015

2015 54th IEEE Conference on Decision and Control (CDC)

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Abstract-We propose a new decentralized control scheme for DC Islanded microGrids (ImGs) composed by several Distributed Generation Units (DGUs) with a general interconnection topology. Each local controller regulates to a reference value the voltage of the Point of Common Coupling (PCC) of the corresponding DGU. Notably, off-line control design is conducted in a Plug-and-Play (PnP) fashion meaning that (i) the possibility of adding/removing a DGU without spoiling stability of the overall ImG is checked through an optimization problem; (ii) when a DGU is plugged in or out at most neighbouring DGUs have to update their controllers and (iii) the synthesis of a local controller uses only information on the corresponding DGU and lines connected to it. This guarantee total scalability of control synthesis as the ImG size grows or DGUs gets replaced. Yet, under mild approximations of line dynamics, we formally guarantee stability of the overall closed-loop ImG. The performance of the proposed controllers is analyzed simulating different scenarios in PSCAD.

show abstract

Fast time-varying phasor analysis in the balanced three-phase large electric power system

Cited by 121 publications

References 5 publications

A Decentralized Scalable Approach to Voltage Control of DC Islanded Microgrids

A Decentralized Scalable Approach to Voltage Control of DC Islanded Microgrids

From Hierarchical to Open Access Electric Power Systems

Voltage control of DC islanded microgrids: A decentralized scalable approach

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