Operational and control approach for PV power plants to provide inertial response and primary frequency control support to power system black-start

Feldmann, Darlei; Oliveira, Ricardo Vasques de

doi:10.1016/j.ijepes.2020.106645

Cited by 35 publications

(10 citation statements)

References 34 publications

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“…Karbouj et al [17] presented an self-adaptive voltage controller design to enable solar PV power plant participation in voltage control ancillary service. Feldmann and Oliveira [18] proposed an operational and control approach for centralized PV generation to provide inertial response for the black-start of bulk power systems.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Potential Benefits of Flexible Solar Power Generation in the Southern Company System

Wang

Hobbs

Tuohy

et al. 2022

IEEE J. Photovoltaics

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As penetration of variable renewable power increases, the power system needs more flexibility to manage the variability and uncertainty in the operation process. Allowing solar generation to provide this flexibility can bring substantial benefits to the system. This article evaluates the impacts of flexible solar power generation in the Southern Company power system. The production cost model simulation methodology was used for the analysis, with a 5-min dispatch temporal resolution in the real-time. Enabling a subhourly production cost simulation helps to capture more variability in system load and renewable generation. The solar and wind generation forecasting data were simulated with a realistic nature. A total of 15 scenarios were tested with solar capacities of 2, 7, and 20 GW respectively. Simulation results show that the system may see operational challenges to balance the load and meet the reserve requirements with increased solar penetration level and reduced flexibility due to the retirement of coal plants. Enabling solar power generation flexibility will bring significantly benefits to the system, including reduced penalty costs, increased reliability, reduced solar curtailment, and reduced greenhouse gas emissions. The results also show that energy storage can provide some of the same grid services as flexible solar, thereby reducing the value of flexible solar. Nevertheless, combining flexible solar and energy storage resources could bring additional benefits to the system.

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Section: Introductionmentioning

confidence: 99%

Evaluating Potential Benefits of Flexible Solar Power Generation in the Southern Company System

Wang

Hobbs

Tuohy

et al. 2022

IEEE J. Photovoltaics

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“…An auxiliary damping controller for grid-connected VSG was used to minimize the frequency deviation and improve the system stability [15]. According to [16], an operation and control method for centralized photovoltaic power generation is proposed to provide inertial response and primary frequency control support for black start of power systems. The dynamic and steady-state performance of the system frequency response during the black start is improved.…”

Section: Introductionmentioning

confidence: 99%

“…To solve the aforementioned problems, the virtual synchronous generator (VSG) technology has received attractive attention [11][12][13][14][15][16][17]. Beck pioneered the concept of virtual synchronous machine (VISMA), which simulates the rotational inertia and damping characteristics of synchronous generators [11].…”

Section: Introductionmentioning

confidence: 99%

An adaptative control strategy for interfacing converter of hybrid microgrid based on improved virtual synchronous generator

Liang

Wang

Zhang

et al. 2021

IET Renewable Power Gen

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Inertial support for hybrid AC/DC microgrid systems is provided by the virtual synchronous generator (VSG). However, the fast performance of the system is neglected while enhancing the stability of the system. To address this problem, an adaptive virtual inertia control strategy based on VSG technology is proposed. This control approach adaptively adjusts the system virtual inertia when the system operation deviates from the nominal value, by slowing down the rate of change of AC frequency and DC voltage and improving the deviation of AC frequency and DC voltage. Meanwhile, when the AC frequency and DC voltage restore back to the rated value, the rate of change of AC frequency is accelerated and the DC voltage fluctuation is reduced by dynamically adjusting the virtual inertia of the system. The proposed adaptive virtual inertia control method combines the advantages of large and small inertia to effectively improve the dynamic response of the system voltage and frequency in both rectifier and inverter modes. Finally, the simulation and experimental results verify the effectiveness of the proposed control algorithm.

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“…Cases of implementation of primary and secondary frequency controls have been are presented in [21][22][23][24]. Models based on virtual power plant (VPP) application were proposed in [25,26]; synthetic inertia techniques were developed in [27,28]; and fast frequency response (FFR) control methods using backup generators were proposed in [29,30]. The VPP and FFR controls require complex algorithms, which are made more difficult by the significant penetration of RES-DG in the grid.…”

Section: Introductionmentioning

confidence: 99%

An Online Security Prediction and Control Framework for Modern Power Grids

2021

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The proliferation of renewable energy sources distributed generation (RES-DG) into the grid results in time-varying inertia constant. To ensure the security of the grid under varying inertia, techniques for fast security assessment are required. In addition, considering the high penetration of RES-DG units into the modern grids, security prediction using varying grid features is crucial. The computation burden concerns of conventional time-domain security assessment techniques make it unsuitable for real-time security prediction. This paper, therefore, proposes a fast security monitoring model that includes security prediction and load shedding for security control. The attributes considered in this paper include the load level, inertia constant, fault location, and power dispatched from the renewable energy sources generator. An incremental Naïve Bayes algorithm is applied on the training dataset developed from the responses of the grid to transient stability simulations. An additive Gaussian process regression (GPR) model is proposed to estimate the load shedding required for the predicted insecure states. Finally, an algorithm based on the nodes’ security margin is proposed to determine the optimal node (s) for the load shedding. The average security prediction and load shedding estimation model training times are 1.2 s and 3 s, respectively. The result shows that the proposed model can predict the security of the grid, estimate the amount of load shed required, and determine the specific node for load shedding operation.

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Operational and control approach for PV power plants to provide inertial response and primary frequency control support to power system black-start

Cited by 35 publications

References 34 publications

Evaluating Potential Benefits of Flexible Solar Power Generation in the Southern Company System

Evaluating Potential Benefits of Flexible Solar Power Generation in the Southern Company System

An adaptative control strategy for interfacing converter of hybrid microgrid based on improved virtual synchronous generator

An Online Security Prediction and Control Framework for Modern Power Grids

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