Multistage Multiobjective Volt/VAR Control for Smart Grid-Enabled CVR With Solar PV Penetration

Pamshetti, Vijay Babu; Thakur, Amit Kumar; Singh, Shailendra

doi:10.1109/jsyst.2020.2992985

Cited by 41 publications

(26 citation statements)

References 24 publications

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“…Then in [6] a coordinated centralised and local control approach was proposed which simultaneously tries to achieve network-level objective by CVR and mitigate the impacts of DER variability on optimal control set-points. In addition, in [21] a multi-stage multi-objective Volt-VAr control strategy for smart grid-enabled CVR has been presented in the presence of high PV penetration. In [22] a centralised, three-phase AC optimal power flow (OPF)based CVR scheme was proposed in which OLTCs and capacitors across MV and LV networks actively manage voltages to minimise energy consumption also with high PV penetration.…”

Section: Conservation Voltage Reduction (Cvr)mentioning

confidence: 99%

Flexibility Services Provision by Frequency-Dependent Control of On-Load Tap-Changer and Distributed Energy Resources

et al. 2021

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Distribution network connected distributed energy resources (DER) are able to provide various flexibility services for distribution system operators (DSOs) and transmission system operators (TSOs). These local and system-wide flexibility services offered by DER can support the frequency (f) and voltage (U) management of a future power system with large amounts of weather-dependent renewable generation and electric vehicles. Depending on the magnitude of frequency deviation, other active network management-based frequency control services for TSOs could also be provided by DSOs in coordination with adaptive control of DER. This paper proposes utilisation of demand response based on frequencydependent HV/MV transformer on-load tap-changer (OLTC) operation in case of larger frequency deviations. The main principle underlying the proposed scheme lies in the voltage dependency of the distribution network connected loads. In this paper, it is also proposed to, simultaneously with frequencydependent OLTC control, utilise reverse reactive power-voltage (QU)-and adaptive active power-voltage (PU)-droops with distribution network connected DER units during these larger frequency deviations, in order to enable better frequency support service for TSOs from DSO networks. The effectivity and potential of the proposed schemes are shown through PSCAD simulations. In addition, this paper also presents a holistic and collaborative view of potential future frequency control services which are provided by DSO network-connected resources for TSOs at different frequency deviation levels.

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Section: Conservation Voltage Reduction (Cvr)mentioning

confidence: 99%

Flexibility Services Provision by Frequency-Dependent Control of On-Load Tap-Changer and Distributed Energy Resources

et al. 2021

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“…In Reference 28, a method has been proposed that provides both network reconfiguration and voltage/reactive power control for energy savings in the presence of PV systems. Reference 29 has proposed a coordinated control strategy of multiple voltage control devices via conservation voltage reduction in PV‐integrated distributed system. A different method to formulate and solve Volt/Var problem in distribution system with DGs as a mixed integer non‐linear programming problem was described in Reference 30.…”

Section: Introductionmentioning

confidence: 99%

Techno‐economic management of daily Volt/Var planning considering reactive power contribution of high penetrated‐PV solar farms utilized as STATCOM : A case study in Istanbul, Turkey

Halacli

Demirören

2021

Int Trans Electr Energ Syst

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Summary The rising demand for electrical energy and decreasing capital cost of photovoltaic (PV) panels led to rapid growth in large‐scale solar PV system penetration in many countries, including Turkey. This article focused on a cost‐effective and efficient decentralized voltage and reactive power (Volt/Var) control approach in distribution networks at the presence of high penetrated solar PV farms utilized as static synchronous compensator (PV‐STATCOM) which has been recently proposed. A proper coordinated control of large number of PV‐STATCOMs suggested to achieve optimal reactive power scheduling for the next day ahead. This article introduced implementation of a modified Lévy flight‐based firefly algorithm (MLFA) to multi‐objective Volt/Var optimization problem, which was employed for minimizing active power loss and cost of energy. The validity and applicability of the proposed method were confirmed by implementing it on a real megavolt (MV) Turkish distribution network for various loading conditions. Simulation results show that the results of MLFA to this problem outperform those of other methods. Furthermore, application of the proposed method offers opportunity to distribution system operators for a large amount of cost savings and loss reduction without compromising voltage regulatory limits.

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“…In recent years, different techniques associated with voltage regulation and control methods to mitigate the effect of high PV penetration have been proposed. These solutions include studies to determine the maximum loads connected to the grid [23], grid layout and loads residential design [24], variable tap transformers [25] and smart transformers applications [26], battery bank systems [27][28][29], inverters with reactive power capability [30][31][32][33], and the interconnectivity of external devices with the grid as smart electrical vehicles [34]. Additionally, the theoretical use of a communication network that allows making decisions based on grid variations has been suggested [35].…”

Section: Introductionmentioning

confidence: 99%

“…Inverters with reactive power capability are an interesting option [30][31][32][33]; however, the main disadvantages are not only the increase in the inverter nominal power to offer good performance but also an increment in the grid power losses and in the semiconductor stress, which entails a reduction in the useful life of the inverter.…”

Section: Introductionmentioning

confidence: 99%

Active Power Management for PV Systems under High Penetration Scenario

Medina

Vázquez

Vaquero

et al. 2021

International Journal of Photoenergy

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Although PV systems are one of the most widely used alternatives as a renewable energy source due to their well-known advantages, there are significant challenges to address related to voltage fluctuations and reverse power flow caused by high PV penetration scenarios. As a potential solution to this problem, an active power management strategy is proposed in this work using a residential cluster as a benchmark. The proposed strategy is analyzed and experimentally verified, offering a simple way to reduce the voltage fluctuations by regulating the active power delivered by the PV system, achieving also relevant functionalities for the system, such as the regulation of the DC bus voltage, maximum power point tracking (MPPT), synchronization with the grid voltage, detection of high penetration conditions, and a simple strategy for the main controller with an effective performance. The proposal system shows satisfactory results being able to maintain grid voltage fluctuations within the voltage standard specifications.

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Multistage Multiobjective Volt/VAR Control for Smart Grid-Enabled CVR With Solar PV Penetration

Cited by 41 publications

References 24 publications

Flexibility Services Provision by Frequency-Dependent Control of On-Load Tap-Changer and Distributed Energy Resources

Flexibility Services Provision by Frequency-Dependent Control of On-Load Tap-Changer and Distributed Energy Resources

Techno‐economic management of daily Volt/Var planning considering reactive power contribution of high penetrated‐PV solar farms utilized as STATCOM : A case study in Istanbul, Turkey

Active Power Management for PV Systems under High Penetration Scenario

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