Analyzing Impact of Distributed PV Generation on Integrated Transmission &amp; Distribution System Voltage Stability—A Graph Trace Analysis Based Approach

Bhatti, Bilal Ahmad; Broadwater, Robert; Dilek, Murat

doi:10.3390/en13174526

Cited by 10 publications

(9 citation statements)

References 26 publications

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“…The impact of PV variability on the steady-state voltage stability of integrated T&D systems was discussed in ref. [9]. Using GTA power flow, steady-state voltage stability heat maps were constructed, and the impact of PV generation loss and synchronous generator loss was quantified.…”

Section: Td-a Approachmentioning

confidence: 99%

Integrated Transmission-and-Distribution System Modeling of Power Systems: State-of-the-Art and Future Research Directions

Jain

Bhatti

et al. 2020

Energies

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Integrated transmission-and-distribution (T&D) modeling is a new and developing method for simulating power systems. Interest in integrated T&D modeling is driven by the changes taking place in power systems worldwide that are resulting in more decentralized power systems with increasingly high levels of distributed energy resources. Additionally, the increasing role of the hitherto passive energy consumer in the management and operation of power systems requires more capable and detailed integrated T&D modeling to understand the interactions between T&D systems. Although integrated T&D modeling has not yet found widespread commercial application, its potential for changing the decades-old power system modeling approaches has led to several research efforts in the last few years that tried to (i) develop algorithms and software for steady-state and dynamic modeling of power systems and (ii) demonstrate the advantages of this modeling approach compared with traditional, separated T&D system modeling. In this paper, we provide a review of integrated T&D modeling research efforts and the methods employed for steady-state and dynamic modeling of power systems. We also discuss our current research in integrated T&D modeling and the potential directions for future research. This paper should be useful for power systems researchers and industry members because it will provide them with a critical summary of current research efforts and the potential topics where research efforts are needed to further advance and demonstrate the utility of integrated T&D modeling.

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Section: Td-a Approachmentioning

confidence: 99%

Integrated Transmission-and-Distribution System Modeling of Power Systems: State-of-the-Art and Future Research Directions

Jain

Bhatti

et al. 2020

Energies

Self Cite

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“…The electrical power system is a large interconnected system, containing one transmission network and multiple distribution networks. In order to separately analyze these networks, TSOs model the distribution network as an equivalent load bus, while DSOs model the transmission network as an equivalent generator bus [2]. These assumptions were justified as bulk power was generated at transmission level and transported hierarchically toward end consumers such as households and industries.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Increasing Penetration of Photovoltaic Generation on Integrated Transmission-Distribution Power Systems

Kootte

Vuik

2022

Control of Smart Buildings

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Power system simulations should be adapted to be applicable to the trends that are currently evoked by the energy transition. This transition is pushing our power system from a traditional hierarchical system to a modern interactive system. In order to keep the supply and transport of energy safe and reliant, we need to change the way we perform power system simulations. This requires a comprehensive framework in which both transmission and distribution systems are simultaneously analyzed. This chapter describes how transmission and distribution networks are modeled together as an integrated network and used to do steady-state operation analysis in order to assess the interaction of these two networks. Furthermore, we investigate the influence of the increasing amount of imbalance at distribution level on the transmission network that is evoked by the increase of highly variable resources and loads at distribution level. This influence is not taken into account in traditional power system simulations as power networks are analyzed on its own. We show that the hybrid network representation is a powerful tool to analyze modern power systems and that the effects of increased PV penetration under normal operating conditions are limited.

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“…Power systems are responsible for interconnecting power generation sources and consumers in high-voltage levels through transmission and sub-transmission systems since large power sources (i.e., hydraulic power plants) and loads are geographically separated by hundreds of kilometers [1,2]. The sector of electricity supply is composed of four main activities: (i) generation, (ii) transportation, (iii) distribution, and (iv) commercialization; these activities make possible the power supply from large and distributed power sources to all end-users from high-to low-voltage levels [3].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Reactive Power Compensation in Power Systems through the Optimal Siting and Sizing of Photovoltaic Sources

2021

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The problem of the optimal placement and sizing of photovoltaic power plants in electrical power systems from high- to medium-voltage levels is addressed in this research from the point of view of the exact mathematical optimization. To represent this problem, a mixed-integer nonlinear programming model considering the daily demand and solar radiation curves was developed. The main advantage of the proposed optimization model corresponds to the usage of the reactive power capabilities of the power electronic converter that interfaces the photovoltaic sources with the power systems, which can work with lagging or leading power factors. To model the dynamic reactive power compensation, the η-coefficient was used as a function of the nominal apparent power converter transference rate. The General Algebraic Modeling System software with the BONMIN optimization package was used as a computational tool to solve the proposed optimization model. Two simulation cases composed of 14 and 27 nodes in transmission and distribution levels were considered to validate the proposed optimization model, taking into account the possibility of installing from one to four photovoltaic sources in each system. The results show that energy losses are reduced between 13% and 56% as photovoltaic generators are added with direct effects on the voltage profile improvement.

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Analyzing Impact of Distributed PV Generation on Integrated Transmission & Distribution System Voltage Stability—A Graph Trace Analysis Based Approach

Cited by 10 publications

References 26 publications

Integrated Transmission-and-Distribution System Modeling of Power Systems: State-of-the-Art and Future Research Directions

Integrated Transmission-and-Distribution System Modeling of Power Systems: State-of-the-Art and Future Research Directions

The Influence of the Increasing Penetration of Photovoltaic Generation on Integrated Transmission-Distribution Power Systems

Dynamic Reactive Power Compensation in Power Systems through the Optimal Siting and Sizing of Photovoltaic Sources

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