Reduced‐order modelling of solar‐PV generators for small‐signal stability assessment of power systems and estimation of maximum penetration levels

EL-Shimy, M.; Sharaf, A.Μ.; Khairy, H.; Hashem, Gamal M.

doi:10.1049/iet-gtd.2017.0381

Cited by 35 publications

(27 citation statements)

References 33 publications

(43 reference statements)

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“…According to [20], the mathematical model between output current i pv and output voltage v pv of the PV arrays is given by (1):…”

Section: A the Dynamics Of Front-end Circuitmentioning

confidence: 99%

“…In power systems and micro-grid, the installed capacity of renewable energy power generation has increased a lot in past decades. Renewable energy is considered as a key factor in solving energy security due to the availability of photovoltaic (PV) resources, low cost and non-pollution on environment [1]. The existing research on photovoltaic (PV)…”

Section: Introductionmentioning

confidence: 99%

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Structure-Preservation Model Aggregation for Two-Stage Inverters Based Large-Scale Photovoltaic System

et al. 2020

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With the increasing penetration level of large-scale photovoltaic (PV) generator connected to the grid, an accurate simulation model is required for the dynamic analysis of the PV system. However, the detailed electromagnetic simulation of the large-scale system is complex and the dynamic response capability is estimated with obstacle caused by large computational burdens. Therefore, a precise dynamic aggregated model is indispensable for the displacement of the large-scale PV system. The structurepreservation based aggregated model with comprehensive equivalent parameters for large-scale PV system is proposed in this paper. A complete two-stage PV system model is established to analyze the dynamics of the system. Then, the aggregation method is obtained by comparing the dynamic equations of the detailed model with the aggregated model, which is based on the energy relationship in the PV system. Furthermore, four different case studies are considered including the aggregation of identical and different ten parallelconnected PV units both under the same irradiance condition, and the aggregation of different ten parallelconnected PV units under different irradiance and weak grid scenarios, where the aggregation models are obtained through the proposed equivalent modeling method. Finally, the effectiveness of the proposed aggregation method is verified by the simulation results from PSCAD/EMTDC platform, and the consistency between the aggregated model and the detailed model is confirmed under different disturbances of irradiance variation, and continuous symmetric and asymmetric grid faults.

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“…According to [20], the mathematical model between output current i pv and output voltage v pv of the PV arrays is given by (1):…”

Section: A the Dynamics Of Front-end Circuitmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structure-Preservation Model Aggregation for Two-Stage Inverters Based Large-Scale Photovoltaic System

et al. 2020

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show abstract

“…Apart from this, other major challenge associated with renewable energy generation is the uncertainty in output power [1,2]. As reported in [3], the integration of large-scale PV plant could affect the oscillatory stability or small-signal stability due to the different dynamic characteristics and reverse power flow in the system. It is observed that the damping ratio of the electromechanical mode changed with the penetrations of large-scale PV.…”

Section: Introductionmentioning

confidence: 99%

Enabling Resilient Multi-Mode Controller in Power System With Re and Bes Using Firefly Algorithm

Setiadi¹,

Mithulananthan²,

Shah³

et al. 2020

Preprint

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This paper proposed a damping method for enhancing oscillatory stability performance of power systems with high penetration of renewable energy by a resilient wide-area multi-mode controller. The resilient wide-area multi-mode controller is used as an additional controller in a renewable energy system with a battery energy storage to enhance the damping of the critically weak modes. The weak modes are likely to be triggered in the event of line outages or any other disturbances, and the system may become unstable in the absence of proper corrective and preventive control. A firefly algorithm has been employed to design such a controller. Eigenvalue analysis and time-domain simulation are used to analyze the performance of the proposed controller in a realistic representative power system. From the simulation results, it is evident that the oscillatory stability performance of the renewable rich power system can be enhanced with the proposed control to keep the damping on critical modes to the industrial standards. Furthermore, renewable energy penetration can be increased significantly in the realistic representative system by introducing the proposed controller without disturbing the oscillatory stability margin.

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“…The impact of HVDC on small‐signal stability is reported in [6]. The influence of large‐scale PV plants on the small‐signal stability is reported in [7]. As reported in [7], the integration of large‐scale PV plant may adversely affect the oscillatory stability of power system due to zero inertia and reverse power flow.…”

Section: Introductionmentioning

confidence: 99%

“…The influence of large‐scale PV plants on the small‐signal stability is reported in [7]. As reported in [7], the integration of large‐scale PV plant may adversely affect the oscillatory stability of power system due to zero inertia and reverse power flow. The influence of WPP penetration on small‐signal stability is reported in [8].…”

Section: Introductionmentioning

confidence: 99%

Resilient wide‐area multi‐mode controller design based on Bat algorithm for power systems with renewable power generation and battery energy storage systems

Setiadi

Mithulananthan

Shah

et al. 2019

IET Generation Trans & Dist

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Modern power systems consist of power electronics devices, which are used in renewable energy (RE) conversion. However, these devices, associated controllers, and uncertainty in RE output could bring new challenges to power system stability, especially oscillatory stability. Hence, the integration of battery energy storage systems (BESSs) is being developed to minimise the uncertainty and variability in renewables. Furthermore, to tackle the complex dynamics and inertia‐less characteristics of wind and PV plants additional controllers such as power oscillation damping (POD) control and virtual inertia scheme are sought. However, the primary challenges associated with the wide‐area oscillation damping controller are signal transmission delay, loss of communication signal, data drops, and others. This paper proposes a bat algorithm (BA) based resilient wide‐area multi‐mode controller (MMC) for enhancing oscillatory stability margin with high penetration of renewable power generations (RPGs) and BESSs. The Java 500 kV Indonesian grid is used to evaluate the performance of the resilient wide‐area MMC. From the results, it is found that the proposed controller effectively damp the critical mode of oscillation in the system even under communication failure as well as certain damping controller failures.

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Reduced‐order modelling of solar‐PV generators for small‐signal stability assessment of power systems and estimation of maximum penetration levels

Cited by 35 publications

References 33 publications

Structure-Preservation Model Aggregation for Two-Stage Inverters Based Large-Scale Photovoltaic System

Structure-Preservation Model Aggregation for Two-Stage Inverters Based Large-Scale Photovoltaic System

Enabling Resilient Multi-Mode Controller in Power System With Re and Bes Using Firefly Algorithm

Resilient wide‐area multi‐mode controller design based on Bat algorithm for power systems with renewable power generation and battery energy storage systems

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