Modern techniques to study voltage regulator - DG interactions in distribution systems

Kojovic, L.A.

doi:10.1109/tdc.2008.4517240

Cited by 15 publications

(16 citation statements)

References 1 publication

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“…These authors also presented a comprehensive review of different types of DG. Kim et al [10], Chae et al [11], Barker et al [12], Liu et al [13], Kojovic et al [14], and Kojovic et al [15] presented experimental results on power characteristics and electrical quality when DG is connected. However, the previous studies listed above do not cover any discussion of economics.…”

Section: Introductionmentioning

confidence: 99%

Electrical Power Characteristics and Economic Analysis of Distributed Generation System Using Renewable Energy: Applied to Iron and Steel Plants

Shin

2019

Sustainability

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The intention of this paper is to respond to the increase in electric power demand and global environmental issues in iron and steel plants. In particular, the authors studied the characteristics of the power flow from a distributed generation (DG) system connected to the electrical power system of a steel plant. In addition, the authors carried out an economic analysis of the DG system by calculating the capital investment cost that could convert the profit of the DG into a certain profit. The research was conducted based on the power system configuration and basic data of a steel plant in operation in Korea. To analyze the unconnected DG of the power system, a transmission voltage target was set, and the voltage characteristics of 22.9 and 6.6 kV systems were analyzed. The authors analyzed the connected DG system in terms of the effect of link location, power factor, and output power by case. The authors also studied the power loss variation in the output power of a DG system. Various simulations with MATLAB software and NPV (Net Present Value) and IRR (Internal Rate of Return) methods were run in an economic analysis to compare the case of not introducing an energy storage system (ESS), and the case of introducing an ESS in terms of comprehensive energy utilization. The results of the economic analysis indicated that the scenario with ESS is more economically advantageous, resulting from the peak power reduction effect and the evasion cost due to the elimination of the power generation operation of the peak load. Developed countries have established best available technology (BAT) standards and developed related practices to apply them to industrial plants, actively preparing for environmental issues in the future. In Korea and in some other countries, the application of distributed generation in conjunction with the steel plant sector will be effective for improving energy efficiency and responding to environmental issues.

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Section: Introductionmentioning

confidence: 99%

Electrical Power Characteristics and Economic Analysis of Distributed Generation System Using Renewable Energy: Applied to Iron and Steel Plants

Shin

2019

Sustainability

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“…Authors of [1] and [2] have investigated the voltage and reactive power control issues in a distribution system with substation OLTC, capacitor banks and DG. In [3], interactions between DG and SVR have been investigated. The voltage control issues in case of a realistic distribution network with substation OLTC and multiple distributed generators have been investigated in [4].…”

Section: Introductionmentioning

confidence: 99%

Online Voltage Control in Distribution Systems With Multiple Voltage Regulating Devices

Ranamuka

Agalgaonkar

Muttaqi

2014

IEEE Trans. Sustain. Energy

138

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Voltage regulation in distribution systems is typically performed with the aid of multiple voltage regulating devices, such as on-load tap changer and step voltage regulators. These devices are conventionally tuned and locally coordinated using Volt/VAR optimization strategies in accordance with the time-graded operation. However, in case of distribution systems with distributed generation (DG), there could be a possibility of simultaneous responses of DG and multiple voltage regulators for correcting the target bus voltage, thereby resulting in operational conflicts. This paper proposes an online voltage control strategy for a realistic distribution system containing a synchronous machine-based renewable DG unit and other voltage regulating devices. The proposed strategy minimizes the operational conflicts by prioritizing the operations of different regulating devices while maximizing the voltage regulation support by the DG. It is tested on an interconnected medium voltage distribution system, present in New South Wales, Australia, through time-domain simulation studies. The results have demonstrated that voltage control for a distribution feeder can effectively be achieved on a real-time basis through the application of the proposed control strategy.

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“…In [3], [4] the voltage support control is obtained by OLTC, capacitor banks and DG. The interactions between DG and SVR are investigated in [5], while in [6]- [10] are presented voltage regulation issues in real distribution networks with multiple DGs. A control strategy based on synchronous machines, used for the same aim, is presented in [11], [12] and techniques based on soft computing approaches are described in [13]- [15].…”

Section: Introductionmentioning

confidence: 99%

Voltage support control of unbalanced distribution systems by reactive power regulation

Calderaro

Galdi

Lamberti

et al. 2014

IEEE PES Innovative Smart Grid Technologies, Europe

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The high penetration of distributed generation (DG) into distribution networks (DN) has highlighted the necessity to develop proper control techniques to supply customers with high power quality levels and to offer ancillary services to the distribution system operators (DSOs). This paper supposes an unbalanced DN in which the importance of applying voltage control strategies is largely justified in literature. In particular, we present a strategy that offers the mandatory voltage control ancillary service, able to avoid active power production curtailments, using the minimum reactive power for the regulation. Validation of the proposed control has been conducted on the IEEE 13-bus distribution system and the obtained results are encouraging

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Modern techniques to study voltage regulator - DG interactions in distribution systems

Cited by 15 publications

References 1 publication

Electrical Power Characteristics and Economic Analysis of Distributed Generation System Using Renewable Energy: Applied to Iron and Steel Plants

Electrical Power Characteristics and Economic Analysis of Distributed Generation System Using Renewable Energy: Applied to Iron and Steel Plants

Online Voltage Control in Distribution Systems With Multiple Voltage Regulating Devices

Voltage support control of unbalanced distribution systems by reactive power regulation

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