Influence of FACTS Device Implementation on Performance of Distribution Network with Integrated Renewable Energy Sources

Relić, Filip; Marić, Predrag; Glavaš, Hrvoje; Petrović, Ivica

doi:10.3390/en13205516

Cited by 12 publications

(11 citation statements)

References 31 publications

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“…Mathematically, the establishment process should be nonlinear differential equations, covering the entire process of establishment in general, the solutions of which should reflect the specified gradual decrease in speed and increase in amplitude. However, due to the lack of any general methods for integrating nonlinear differential equations, it is necessary to search for such approximate methods that, to some extent, reflect the physical picture of the processes under consideration [15][16][17][18].…”

Section: Establishment Processes In a Saturated Machinementioning

confidence: 99%

Assessment of the Effect of Corona Discharge on Synchronous Generator Self-Excitation

et al. 2022

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The method of operative determination of active power losses (both loading and crown) in alternating current lines has been improved. The proposed technique allows monitoring of active power losses in lines. Based on the comparative analysis of different approximation methods, the most effective method of analytical representation of regression dependences of active power losses on the corona on voltage for different weather conditions is proposed. The validity and reliability of scientific statements, conclusions, and recommendations given in the dissertation are confirmed by the analysis of the results of comparative calculations performed for different models. The efficiency of the developed algorithms and programs was tested on control examples with reference source data, where the results of the calculations were compared with the results obtained by standard programs. The developed technique of operative determination of losses of active power (loading and on a crown) allows one to carry out current monitoring of losses and passive parameters of high-voltage power lines of alternating current. The phenomena of self-excitation of generators connected to unloaded power lines are considered at great length. A physical analysis of the ongoing processes is given, and calculation methods are proposed that have been experimentally tested on a dynamic model. The paper takes into account the effect of the wire corona on the conditions of self-excitation of generators with the necessary developments to prevent this negative phenomenon in the main electrical network. Models and methods have been developed for evaluating the effect of the wire corona on the conditions for the occurrence of self-excitation in ultra-high voltage transmission lines.

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Section: Establishment Processes In a Saturated Machinementioning

confidence: 99%

Assessment of the Effect of Corona Discharge on Synchronous Generator Self-Excitation

et al. 2022

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“…However, it is possible to optimize the input or output of reactive power dispatch using D-FACTS. These systems can contribute to control voltage levels, as well as improve system reliability [27], [28]. So, it is necessary to define the maximum value of susceptance capacitive (which will be represent the injected reactive power to the grid), , and the minimum value of susceptance capacitive (which will be represent the absorbed reactive power from the grid), .…”

Section: Thementioning

confidence: 99%

“…Therefore, this criterion forces that the total expected load must be supplied, and it is weighted by coefficient. Adding this new criterion in (28), the criterion is written as:…”

mentioning

confidence: 99%

Multiperiod Optimum Power Flow for Active Distribution Networks With Provisioning of Ancillary Services

et al. 2021

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Distribution networks are suffering a transformation process with the insertion of distributed energy resources, changing from a passive part of the power grid into an active system. Aiming to reduce the challenges for the distribution system operators to keep the power grid operating inside of the quality levels it is possible to propose some ancillary services. Optimum Power flow is an optimization method used to plan the distribution grid operation. Additionally, the distributed energy resources can be modeled on it and ancillary services provisioning can be considered, as proposed in this work. In this way, the objective of the present work is to formulate a Multiperiod Optimum Power Flow (MPOPF) with the insertion of distributed generation, energy storage systems, microgrids, and electric vehicles at the distribution grid. This MPOPF considers the provisioning of ancillary services by the inverters associated with the equipment connected to the main grid. In the formulation, the entire grid is modeled, considering the placement of classic equipment as a voltage regulator and capacitor banks, in addition to modern technologies as DFACTS and four-quadrant inverters. The MPOPF was simulated for several scenarios considering a 90-bus test feeder and a real distribution grid from Curitiba -Brazil. From the results, the MPOPF proved to be highly robust, being able to simulate the grid with all the equipment connected simultaneously, performing the optimal dispatch of active and reactive power, as well as allowing the operation of ancillary services such as voltage support, peak-shaving, and demand-side management.

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“…Similarly, TCSC is more reliable as compared to STAT-COM for long-distance transmission lines [25]. When SVCs are compared to STAT-COM, STAT-COM gives efficient results at a higher cost [26]. Furthermore, the effectiveness of SVC and TCSC to decrease real power losses and to improve voltage profile have been discussed in the literature [27,28].…”

Section: Introductionmentioning

confidence: 99%

Ensuring Reliable Operation of Electricity Grid by Placement of FACTS Devices for Developing Countries

et al. 2021

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Flexible AC Transmission Systems (FACTS) are essential devices used for the efficient performance of modern power systems and many developing countries lack these devices. Due to the non-existence of these advanced technologies, the national grid remains weak and vulnerable to power stability issues that can jeopardize system stability. This study proposes novel research to solve issues of an evolving national grid through the installation of FACTS devices. FACTS devices play a crucial role in minimizing active power losses while managing reactive power flows to keep the voltages within their respective limits. Due to the high costs of FACTS, optimization must be done to discover optimal locations as well as ratings of these devices. However, due to the nonlinearity, it is a challenging task to find the optimal locations and appropriate sizes of these devices. Shunt VARs Compensators (SVCs) and Thyristor-Controlled Series Compensators (TCSCs) are the two FACTS devices considered for the study. Optimal locations for SVCs and TCSCs are determined by Voltage Collapse Proximity Index (VCPI) and Line Stability Index (Lmn), respectively. Particle Swarm Optimization (PSO) is employed to find the ideal rating for FACTS devices to minimize the system operating cost (cost due to active power loss and capital cost of FACTS devices). This technique is applied to IEEE (14 and 30) bus systems. Moreover, reliable operation of the electricity grid through the placement of FACTS for developing countries has also been analysed; Pakistan being a developing country has been selected as a case study. The planning problem has been solved for the present as well as for the forecasted power system. Consequently, in the current national network, 6.21% and 6.71% reduction in active and reactive power losses have been observed, respectively. Moreover, voltage profiles have been improved significantly. A detailed financial analysis covering the calculation of Operation Cost (OC) of the national grid before and after the placement of FACTS devices is carried out.

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Influence of FACTS Device Implementation on Performance of Distribution Network with Integrated Renewable Energy Sources

Cited by 12 publications

References 31 publications

Assessment of the Effect of Corona Discharge on Synchronous Generator Self-Excitation

Assessment of the Effect of Corona Discharge on Synchronous Generator Self-Excitation

Multiperiod Optimum Power Flow for Active Distribution Networks With Provisioning of Ancillary Services

Ensuring Reliable Operation of Electricity Grid by Placement of FACTS Devices for Developing Countries

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