Optimal coordination of voltage control devices in distribution systems connected to distributed generations

Hasan, Eman O.; Hatata, Ahmed Y.; Badran, Ebrahim A.; Yossef, Fathi M.H.

doi:10.1007/s00202-019-00764-2

Cited by 11 publications

(8 citation statements)

References 32 publications

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“…The DGs and DSTATCOMs have automatically improved the system voltage stability when they are connected to the DNs. Moreover, if the voltage stability is not considered in the objective function, the RDS may be sensitive to the voltage problems [29]. The VSI can be expressed by;…”

Section: ) Voltage Stability Indexmentioning

confidence: 99%

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Grasshopper Optimization-based Optimal Sizing of DG/DSTATCOM in Distribution Networks

Frahat

Hatata

Saadawi

et al. 2022

MEJ. Mansoura Engineering Journal

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demand led to developing the DNs and the search for new alternatives to electric power generations such as renewable energy sources based-DGs. This may cause instability problems, an increase in power losses and load imbalance, and a decrease in bus voltage [2]. To avoid these drawbacks, the compensation devices are highly recommended to be installed at the current DNs. The DGs are applied to generate

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Section: ) Voltage Stability Indexmentioning

confidence: 99%

“…The DSTATCOM size is calculated from the injected reactive power. DSTATCOM must be within its limits to improve the voltage and can be expressed by [29];…”

Section: ) D-statcom Limitsmentioning

confidence: 99%

Grasshopper Optimization-based Optimal Sizing of DG/DSTATCOM in Distribution Networks

Frahat

Hatata

Saadawi

et al. 2022

MEJ. Mansoura Engineering Journal

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“…It was used to obtain the optimal setting of capacitors banks, DGs, and OLTC. The voltage-VAR Optimization algorithm was proposed to control the voltage in unbalanced DN [15], [38], [39]. The DN was divided into control areas, each linked with DG, capacitor bank, and OLTC.…”

Section: Introductionmentioning

confidence: 99%

Centralized Control Method for Voltage Coordination Challenges With OLTC and D-STATCOM in Smart Distribution Networks Based IoT Communication Protocol

et al. 2023

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This paper proposes a coordination method for the voltage control devices based on optimal settings of the D-STATCOMs, on the load tap changer (OLTC) transformer and the distributed generations (DGs)-based renewable energy resources (RERs). The central controller is introduced to handle the active smart distribution network (SDN) problems to maintain the voltage profile within its permissible limits, minimize power losses in different operating conditions, and minimize the energy wastage from the distributed renewable energy resources. These problems are formulated as a multi-objective optimization problem. With increasing load demand and RERs in the distribution system, voltage coordination threatens real-time efficiency. In this research work, central controller-based Gorilla Troops optimization (GTO) algorithm is proposed to detect the optimum solutions for the voltage coordination problem. The load demand uncertainty and the stochastic nature of power generated from RERs (PV panels and wind turbines) are considered in the voltage coordination problem due to their significant effects on the operation and planning of the SDN. The proposed SDN has been represented based on the Internet of Things (IoT) communication protocol. It enhances the data and information transfer between the system-connected agents. A practical test system, NDEDC-24 bus radial distribution network from the North Delta Electrical Distribution Company and IEEE-33 node system are used to test and evaluate the proposed method. The results are compared with other well-known evolutionary methods. The proposed method obtains more accurate results than the other methods.INDEX TERMS D-STATCOM, distribution network, Internet of Things, on-load tap changer, voltage coordination.

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“…Several previous studies proposed centralized voltage control monitoring and the control of distribution line voltage using high‐speed communications [2–7], multiagent‐based voltage control [8,9], and distributed voltage control [10,11] to enhance the voltage control of DNs. However, there are concerns over the need for investing in relevant equipment and the associated safety issues.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Optimization of SVR Control Parameters for Improving Tap Operation Efficiency of Voltage Control in Distribution Networks

Murakami

Yoshizawa

Ishii

et al. 2020

IEEJ Transactions Elec Engng

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In this study, we propose a new optimization method to determine the control parameters of a step voltage regulator (SVR) to maximize its voltage control characteristic in distribution networks (DNs) with photovoltaic systems. Considering the service life of an SVR, the proposed method evaluates the expected number of tap operations and the voltage control performance based on the past voltage measurements obtained with sensors in the DN. Subsequently, the time series of two control parameters, that is, the reference voltage and the dead bandwidth, are determined for the most improved voltage control characteristic of the SVR, maintaining the number of tap operations within the upper limit. Voltage control simulation using a realistic 6.6-kV DN model is conducted to show that the proposed method significantly reduces the voltage violation compared with the conventional SVR control using fixed parameters, as well as the alternative SVR operation developed in our previous study, in which the reference voltage was temporally updated. In addition, the simulation results demonstrate that the proposed method realizes efficient tap operations to mitigate the voltage violation, whereas the conventional method requires a much larger number of tap operations to mitigate the voltage violation to the same degree.

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Optimal coordination of voltage control devices in distribution systems connected to distributed generations

Cited by 11 publications

References 32 publications

Grasshopper Optimization-based Optimal Sizing of DG/DSTATCOM in Distribution Networks

Grasshopper Optimization-based Optimal Sizing of DG/DSTATCOM in Distribution Networks

Centralized Control Method for Voltage Coordination Challenges With OLTC and D-STATCOM in Smart Distribution Networks Based IoT Communication Protocol

Dynamic Optimization of SVR Control Parameters for Improving Tap Operation Efficiency of Voltage Control in Distribution Networks

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