Large Signal Stability Analysis Tools in DC Power Systems With Constant Power Loads and Variable Power Loads—A Review

Marx, D.; Magne, Pierre; Nahid‐Mobarakeh, Babak; Pierfederici, Serge; Davat, Bernard

doi:10.1109/tpel.2011.2170202

Cited by 302 publications

(175 citation statements)

References 35 publications

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“…Using these parameters, the cost function J is calculated. This cost function depends mainly on the variations of P ref and V * dc as it is mentioned in Equation (29). This step will be repeated and after each step, the cost function will be compared with the minimum calculated cost function until it arrives to the lowest cost function.…”

Section: Objective Function and Problem Constraintsmentioning

confidence: 99%

“…Moreover, the coupling effect and interactions between the PLL itself and the system impedance lead to a potential instability issue [25]. Therefore, studying microgrid stability considering CPLs is very important [26][27][28][29][30][31]. Large-signal study is used to explore the microgrid stability with CPL [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, studying microgrid stability considering CPLs is very important [26][27][28][29][30][31]. Large-signal study is used to explore the microgrid stability with CPL [29][30][31]. A traditional Proportional Integral (PI) controller has been extensively used to control the DG inverters [29].…”

Section: Introductionmentioning

confidence: 99%

“…Large-signal study is used to explore the microgrid stability with CPL [29][30][31]. A traditional Proportional Integral (PI) controller has been extensively used to control the DG inverters [29]. Many studies show that fixed-gain PI controllers cannot easily acclimate to load changes and disturbances, especially in large microgrids [30].…”

Section: Introductionmentioning

confidence: 99%

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Optimal Design and Real Time Implementation of Autonomous Microgrid Including Active Load

2018

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Abstract:Controller gains and power-sharing parameters are the main parameters affect the dynamic performance of the microgrid. Considering an active load to the autonomous microgrid, the stability problem will be more involved. In this paper, the active load effect on microgrid dynamic stability is explored. An autonomous microgrid including three inverter-based distributed generations (DGs) with an active load is modeled and the associated controllers are designed. Controller gains of the inverters and active load as well as Phase Locked Loop (PLL) parameters are optimally tuned to guarantee overall system stability. A weighted objective function is proposed to minimize the error in both measured active power and DC voltage based on time-domain simulations. Different AC and DC disturbances are applied to verify and assess the effectiveness of the proposed control strategy. The results demonstrate the potential of the proposed controller to enhance the microgrid stability and to provide efficient damping characteristics. Additionally, the proposed controller is compared with the literature to demonstrate its superiority. Finally, the microgrid considered has been established and implemented on real time digital simulator (RTDS). The experimental results validate the simulation results and approve the effectiveness of the proposed controllers to enrich the stability of the considered microgrid.

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Section: Objective Function and Problem Constraintsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimal Design and Real Time Implementation of Autonomous Microgrid Including Active Load

2018

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“…With large systems, the stability characteristics become more difficult to establish. To use the original, non-linear models of the system, sliding mode control has been implemented in DC microgrids [15][16][17] by finding a sliding surface and using a discontinuous sliding mode controller to improve voltage stability. In like manner, a non-linear sliding surface is proposed by the two researchers from the Indian Institute of Technology Jodhpur, Suresh Singh and Deepak Fulwani at [18] to mitigate CPL instability.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Development of Sliding Mode Controller for Constant Power Loads in Microgrids

Hossain¹,

Perez²,

Padmanaban³

et al. 2017

Preprint

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Abstract:To implement renewable energy resources, microgrid systems have been adopted and developed into the technology of choice to assure mass electrification in the next decade. Microgrid systems have a number of advantages over the conventional utility grid systems, however, it faces severe instability issues due to continually increasing constant power loads. To improve the stability of the entire system, load side compensation technique is chosen because of its robustness and cost effectiveness. In this particular occasion, a sliding mode controller is developed for microgrid system in the presence of CPL to assure certain control objective of keeping the output voltage constant at 480V. After that, the robustness analysis of the sliding mode controller against parametric uncertainties is presented. The sliding mode controller robustness against parametric uncertainties, frequency variations, and additive white Gaussian noise (AWGN) are illustrated in this paper. Later, the performance of the PID and sliding Mode controller is compared in case of nonlinearity, parameter uncertainties, and noise rejection to justify the selection of Sliding Mode controller over PID controller. All the necessary calculations are reckoned mathematically and results are verified in the virtual platform such as MATLAB/Simulink with the appreciable outcome.

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Quality and Stability of Embedded Power DC Networks

Piquet¹,

Roux²,

Nahid‐Mobarakeh³

et al. 2012

Systemic Design Methodologies for Electrical Energy Systems

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Large Signal Stability Analysis Tools in DC Power Systems With Constant Power Loads and Variable Power Loads—A Review

Cited by 302 publications

References 35 publications

Optimal Design and Real Time Implementation of Autonomous Microgrid Including Active Load

Optimal Design and Real Time Implementation of Autonomous Microgrid Including Active Load

Investigation on Development of Sliding Mode Controller for Constant Power Loads in Microgrids

Quality and Stability of Embedded Power DC Networks

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