Integrating Electrical Energy Storage Into Coordinated Voltage Control Schemes for Distribution Networks

Wang, Pengfei; Liang, Daniel; Yi, Junyan; Lyons, Pádraig; Davison, P.; Taylor, Phil

doi:10.1109/tsg.2013.2292530

Cited by 92 publications

(48 citation statements)

References 30 publications

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“…The VCSF is derived as a function of the voltage sensitivities and voltage control costs. For example, the VCSF is of voltage control measure s to node i is defined as [30]:…”

Section: Voltage Control Indicatormentioning

confidence: 99%

A Hierarchical Optimal Operation Strategy of Hybrid Energy Storage System in Distribution Networks with High Photovoltaic Penetration

Chen

Zhang

et al. 2018

Energies

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Abstract:In this paper, a hierarchical optimal operation strategy for a hybrid energy storage system (HESS) is proposed, which is suitable to be utilized in distribution networks (DNs) with high photovoltaic (PV) penetration to achieve PV power smoothing, voltage regulation and price arbitrage. Firstly, a fuzzy-logic based variable step-size control strategy for an ultracapacitor (UC) with the improvement of the lifetime of UC and tracking performance is adopted to smooth PV power fluctuations. The impact of PV forecasting errors is eliminated by adjusting the UC power in real time. Secondly, a coordinated control strategy, which includes centralized and local controls, is proposed for lithium-ion batteries. The centralized control is structured to determine the optimal battery unit for voltage regulation or price arbitrage according to lithium-ion battery performance indices. A modified lithium-ion battery aging model with better accuracy is proposed and the coupling relationship between the lifetime and the effective capacity is also considered. Additionally, the local control of the selected lithium-ion battery unit determines the charging/discharging power. A case study is used to validate the operation strategy and the results show that the lifetime equilibrium among different lithium-ion battery units can be achieved using the proposed strategy.

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“…The VCSF is derived as a function of the voltage sensitivities and voltage control costs. For example, the VCSF is of voltage control measure s to node i is defined as [30]:…”

Section: Voltage Control Indicatormentioning

confidence: 99%

A Hierarchical Optimal Operation Strategy of Hybrid Energy Storage System in Distribution Networks with High Photovoltaic Penetration

Chen

Zhang

et al. 2018

Energies

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“…where DV i is the voltage variation of the node i; S vp and S vq are the inverse Jacobian matrixes in Newton-Raphson algorithm [21]; DP j and DQ j are variations of injected real and reactive power of node j. For DC lines, DQ j is zero because there is no reactive power flowing in DC lines, and only real power can be used to regulate node voltages.…”

Section: Problem Descriptionmentioning

confidence: 99%

Coordinated voltage regulation of hybrid AC/DC medium voltage distribution networks

Chen

Shen

et al. 2017

J. Mod. Power Syst. Clean Energy

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In a hybrid AC/DC medium voltage distribution network, distributed generations (DGs), energy storage systems (ESSs), and the voltage source converters (VSCs) between AC and DC lines, have the ability to regulate node voltages in real-time. However, the voltage regulation abilities of above devices are limited by their ratings. And the voltage regulation efficiencies of these devices are also different. Besides, due to high r/x ratio, node voltages are influenced by both real and reactive power. In order to achieve the coordinated voltage regulation in a hybrid AC/ DC distribution network, a priority-based real-time control strategy is proposed based on the voltage control effect of real and reactive power adjustment. The equivalence of real and reactive power adjustment on voltage control is considered in control area partition optimization, in which regulation efficiency and capability are taken as objectives. In order to accommodate more DGs, the coordination of controllable devices is achieved according to voltage sensitivities. Simulations studies are performed to verify the proposed method.

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“…Recently, with the advent of DG [11], and technologies such as energy storage systems (ESS) [1] and D-STATCOMs [12], continuous control variables also need to be considered as voltage control variables. These continuous control variables convert the voltage control problem from a combinatorial problem to a mixed integer optimization problem.…”

Section: Control Variables and State Variablesmentioning

confidence: 99%

“…-Network load conditions that are also generated by scaling all the loads in the network with the load scale index based on the 24-hour load profile from the CLNR project [1].…”

Section: Conventional Network Scenariomentioning

confidence: 99%

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Evaluation of Voltage Control Approaches for Future Smart Distribution Networks

Wang¹,

Zangiabadi

et al. 2017

Energies

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Integrating Electrical Energy Storage Into Coordinated Voltage Control Schemes for Distribution Networks

Cited by 92 publications

References 30 publications

A Hierarchical Optimal Operation Strategy of Hybrid Energy Storage System in Distribution Networks with High Photovoltaic Penetration

A Hierarchical Optimal Operation Strategy of Hybrid Energy Storage System in Distribution Networks with High Photovoltaic Penetration

Coordinated voltage regulation of hybrid AC/DC medium voltage distribution networks

Evaluation of Voltage Control Approaches for Future Smart Distribution Networks

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