Automatic Distributed Voltage Control Algorithm in Smart Grids Applications

Brenna, Morris; Berardinis, Ettore De; Carpini, Luca Delli; Foiadelli, Federica; Paulon, Pietro; Petroni, Paola; Sapienza, Gianluca; Scrosati, Giorgio; Zaninelli, Dario

doi:10.1109/tsg.2012.2206412

Cited by 178 publications

(109 citation statements)

References 11 publications

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“…Distribution network contains a number of DESSs, if they are in a chaotic state, it cannot play the role in voltage regulation. Therefore, the main challenge using DESSs to regulate voltage is how to coordinate DESSs reasonably and determine the output power [11,12].…”

Section: Introductionmentioning

confidence: 99%

Coordinated control for voltage regulation of distribution network voltage regulation by distributed energy storage systems

Zhang

Dong

2018

Prot Control Mod Power Syst

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With more and more distributed photovoltaic (PV) plants access to the distribution system, whose structure is changing and becoming an active network. The traditional methods of voltage regulation may hardly adapt to this new situation. To address this problem, this paper presents a coordinated control method of distributed energy storage systems (DESSs) for voltage regulation in a distribution network. The influence of the voltage caused by the PV plant is analyzed in a simple distribution feeder at first. The voltage regulation areas corresponding to DESSs are divided by calculating and comparing the voltage sensitivity matrix. Then, a coordinated voltage control strategy is proposed for the DESSs. Finally, the simulation results of the IEEE 33-bus radial distribution network verify the effectiveness of the proposed coordinated control method.

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Section: Introductionmentioning

confidence: 99%

Coordinated control for voltage regulation of distribution network voltage regulation by distributed energy storage systems

Zhang

Dong

2018

Prot Control Mod Power Syst

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“…The state-space representation of the plant's model is defined in (6) and the details of how to obtain the A, and matrices can be found in previous works presented in [36] and in [37].…”

Section: Mpc Architecturementioning

confidence: 99%

Coordinated microgrid investment and planning process considering the system operator

et al. 2017

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Nowadays, a significant number of distribution systems are facing problems to accommodate more photovoltaic (PV) capacity, namely due to the overvoltages during the daylight periods. This has an impact on the private investments in distributed energy resources (DER), since it occurs exactly when the PV prices are becoming attractive, and the opportunity to an energy transition based on solar technologies is being wasted. In particular, this limitation of the networks is a barrier for larger consumers, such as commercial and public buildings, aiming at investing in PV capacity and start operating as microgrids connected to the MV network. To address this challenge, this paper presents a coordinated approach to the microgrid investment and planning problem, where the system operator and the microgrid owner collaborate to improve the voltage control capabilities of the distribution network, increasing the PV potential. The results prove that this collaboration has the benefit of increasing the value of the microgrid investments while improving the quality of service of the system and it should be considered in the future regulatory framework. KeywordsDistribution grid voltage control, microgrid design, model predictive control, photovoltaics. IntroductionThe number of photovoltaic (PV) installations have exponentially increased over the last decades and a more accelerated growth, pulled by the emerging economies, is expected by In addition, in order to maximize the on-site DER penetration it is a common practice to apply Demand Response (DR) procedures to decrease the load in peak hour conditions, These technical approaches to improve grid controllability proved to be very efficient in increasing the capabilities of distribution systems to host more PV capacity. However, they entail investment and operational costs to the distribution system operators (DSO) and, especially in scenarios of unbundling electricity sectors, DSOs have no interest in making those investments and bearing those costs. In fact, they have no motivation to enable more PV capacity, since their remuneration depends on electricity consumption and the 6 challenges of solar integration are mostly peak power related [19]. Moreover, the installation of photovoltaic units has the practical effect of reducing the net consumption of the prosumers, which decreases the income of the DSOs.The difficulties of the system to accommodate more solar power persist in most distribution networks, especially those that already have a considerable number of photovoltaic installations connected to the LV network. This is a particular barrier for larger consumers, such as commercial and public buildings, aiming at investing in PV capacity and start operating as microgrids connected to the MV network (e.g., [26] and [27]). Three main reasons explain the limitations imposed by the distribution grids to the microgrids investment and planning process: 1) microgrids require a significant amount of PV to justify the investments and, since all the capacity is conc...

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“…Hence, a linearized regulation can be formulated for remaining node voltages within a security operation range. A sensitivity of a node voltage to the real and reactive power of controllable devices can be obtained through (15) and (16) [25].…”

Section: Voltage-sensitivity Approachmentioning

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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Automatic Distributed Voltage Control Algorithm in Smart Grids Applications

Cited by 178 publications

References 11 publications

Coordinated control for voltage regulation of distribution network voltage regulation by distributed energy storage systems

Coordinated control for voltage regulation of distribution network voltage regulation by distributed energy storage systems

Coordinated microgrid investment and planning process considering the system operator

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

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