A new multi-objective for environmental and economic management of Volt/Var Control considering renewable energy resources

Zare, Mohsen; Niknam, Taher

doi:10.1016/j.energy.2013.03.058

Cited by 50 publications

(20 citation statements)

References 30 publications

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“…Zare et al [22] have introduced a multi-objective θ-Smart Bacterial Foraging Algorithm for daily VVC problems of distribution systems in the presence of renewable energy resources and considering environmental and economic aspects. A fair remuneration for the reactive power offered by a dispatchable DG was developed in [23].…”

Section: State Of the Artmentioning

confidence: 99%

Coordinated Volt/Var Control in Distribution Systems with Distributed Generations Based on Joint Active and Reactive Powers Dispatch

Samimi

Kazemi

2016

Applied Sciences

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Abstract:One of the most significant control schemes in optimal operation of distribution networks is Volt/Var control (VVC). Owing to the radial structure of distribution systems and distribution lines with a small X/R ratio, the active power scheduling affects the VVC issue. A Distribution System Operator (DSO) procures its active and reactive power requirements from Distributed Generations (DGs) along with the wholesale electricity market. This paper proposes a new operational scheduling method based on a joint day-ahead active/reactive power market at the distribution level. To this end, based on the capability curve, a generic reactive power cost model for DGs is developed. The joint active/reactive power dispatch model presented in this paper motivates DGs to actively participate not only in the energy markets, but also in the VVC scheme through a competitive market. The proposed method which will be performed in an offline manner aims to optimally determine (i) the scheduled active and reactive power values of generation units; (ii) reactive power values of switched capacitor banks; and (iii) tap positions of transformers for the next day. The joint active/reactive power dispatch model for daily VVC is modeled in GAMS and solved with the DICOPT solver. Finally, the plausibility of the proposed scheduling framework is examined on a typical 22-bus distribution test network over a 24-h period.

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Section: State Of the Artmentioning

confidence: 99%

Coordinated Volt/Var Control in Distribution Systems with Distributed Generations Based on Joint Active and Reactive Powers Dispatch

Samimi

Kazemi

2016

Applied Sciences

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“…In [19], the capability curve of a WT with a full power back to back converter was extensively discussed. The active power generation of a WT is a function of wind speed as given in [20]. The converter's maximum voltage and current impose constraints on the reactive power capability of a WT.…”

Section: Wind Turbinementioning

confidence: 99%

“…In case 3, the proposed model is tested while admitting that due to the operational issues, the maximum reactive power of the Disco is limited for peak hours (hours [18][19][20][21] to get a more stressed operation situation.…”

Section: Case 3 -Stressed Operation Situation For Peak Hours and Implmentioning

confidence: 99%

A new market-based approach for daily Volt/Var control of distribution systems in the presence of distributed energy resources using Benders decomposition algorithm

Samimi¹,

Kazemi²

2016

Turk J Elec Eng & Comp Sci

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Distributed energy resources (DERs), if properly coordinated with other Volt/Var control (VVC) devices, could be incorporated in daily VVC problem. In this paper, a new 2-stage model is presented for daily VVC of distribution systems including DERs, taking into account environmental and economic aspects. First, in the day-ahead market, an initial environmental-economic dispatch is performed to minimize both the electrical energy costs and the gas emissions pertaining to generation units. The initial scheduling results determined by the market operator are delivered to the second stage, namely the daily optimal dispatches of VVC devices, to examine them from operational viewpoints and to yield the daily optimal dispatches of the VVC devices. The objective function of the second stage consists of the total cost of the following components: active power losses, adjustment of the initially scheduled active powers, and depreciation of switchable devices. In this paper, attention is directed towards 2 important types of DERs to be connected to the network: synchronous machine-based distributed generations and wind turbines. Because the active and reactive powers of DERs are coupled via the capability diagram, in this paper, this issue is addressed by considering the capability diagram of DERs in the proposed model. In particular, the Q-capability diagram of wind turbines should be analyzed taking the hourly wind speed fluctuations into consideration, so that delivery of a uniform reactive power can be ensured over the entire hour of operation. Due to the complexity of solving mixed integer nonlinear programming problems, an algorithm based on Benders decomposition is suggested to solve the proposed VVC model in the second stage. Finally, 2 standard distribution test networks are utilized to validate the effectiveness of the proposed method.

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“…In [13], a scenario-based probabilistic structure has been developed to extend a joint energy and VAr market for smart grids to cope with the uncertainties of forecasted load demands and wind power output. Environmental and economic aspects of VVC scheme in distribution systems have been discussed in [14]. Samimi et al [15] have introduced a market-based approach to encourage DGs owners to competitively participate in the daily VVC.…”

Section: Introductionmentioning

confidence: 99%

Complete active-reactive power resource scheduling of smart distribution system with high penetration of distributed energy resources

Samimi

Nikzad

2017

J. Mod. Power Syst. Clean Energy

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In traditional power systems, besides the conventional power plants that provide the necessary reactive power in transmission system, the shunt capacitors along with the tap changers of transformers are also employed in distribution networks. In future years, because of the high number of distributed resources integrated into the distribution networks, it will be essential to schedule complete active-reactive power at distribution level. In this research work, an economic framework based on the active-reactive power bids has been developed for complete active-reactive power dispatch scheduling of smart distribution networks. The economical complete active-reactive power scheduling approach suggested in this study motivates distributed energy resources (DERs) to cooperate in both active power markets and the Volt/Var control scheme. To this end, using DER's reactive power capability, a generic framework of reactive power offers for DERs is extracted. A 22-bus distribution test system is implemented to verify the impressiveness of the suggested active-reactive power scheduling approach.

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A new multi-objective for environmental and economic management of Volt/Var Control considering renewable energy resources

Cited by 50 publications

References 30 publications

Coordinated Volt/Var Control in Distribution Systems with Distributed Generations Based on Joint Active and Reactive Powers Dispatch

Coordinated Volt/Var Control in Distribution Systems with Distributed Generations Based on Joint Active and Reactive Powers Dispatch

A new market-based approach for daily Volt/Var control of distribution systems in the presence of distributed energy resources using Benders decomposition algorithm

Complete active-reactive power resource scheduling of smart distribution system with high penetration of distributed energy resources

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