A Smart Strategy for Voltage Control Ancillary Service in Distribution Networks

Calderaro, Vito; Galdi, Vincenzo; Lamberti, Francesco; Piccolo, Antonio

doi:10.1109/tpwrs.2014.2326957

Cited by 111 publications

(59 citation statements)

References 18 publications

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“…biomass generator units and gas turbines (GTs)) that are connected to the grids without power electronic interfaces [23]. However, the DERs of the second type, i.e., inverter based-DERs (e.g., fuel cells (FCs), micro turbines (MTs) and photovoltaic (PV) units) are integrated into the grid via power electronic converters [24,25]. Figure 1 shows a schematic structure of a DER connected to the grid via an inverter.…”

Section: Reactive Power Bidding Model For Dersmentioning

confidence: 99%

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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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Section: Reactive Power Bidding Model For Dersmentioning

confidence: 99%

“…The maximum producible reactive power of an inverter based-DER is defined as Q c DER which is given by [25]:…”

Section: Reactive Power Bidding Model For Dersmentioning

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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“…The above coordinated control methods are targeted for the transmission system. In a distribution system, because of the difference in network topology, different coordinated voltage control methods are developed [26]- [29]. In power systems, the coordinated control strategy is required to improve control effectiveness, especially during the transient process.…”

Section: Introductionmentioning

confidence: 99%

Coordinated Voltage Control With Online Energy Margin Constraints

Liu

2016

IEEE Trans. Power Syst.

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Based on data available from phase measurement units (PMUs), this paper proposes an energy margin constrained online coordinated voltage control (CVC) algorithm. First, the energy function model is established, which is based on detailed device models that include the effects of shunt capacitor banks, reactive power output of generators and under-load-tap-changers (ULTCs). In order to improve the computational efficiency, a Lie derivative-based method is used to map the energy change into the system trajectory along the energy manifold. Then, the change of energy margin based on the Lie derivative is used as the objective function and the reactive power margin is used as a constraint to formulate a linear programming problem. A coordinated strategy is proposed to help achieve the optimal solution when the linear programming problem is solved. In comparison with the other control modes, the proposed method improves the stability margin and the control effectiveness of voltage profile. Numerical results are provided for a three-machine system, the IEEE-30 bus system and the New England-39 bus benchmark system. Index Terms-Coordinated strategy (CS), coordinated voltage control (CVC), energy margin, voltage stability.Qun-Ying Liu (M'13) received the B.Eng. degree and M.S. and Ph.D. degrees in electrical engineering from

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“…However, the high penetration of customer-side DERs also leads to new problems such as voltage rising with increasing distance from substation and revenue optimization when offering excess DER energy in the energy market [2].…”

Section: Introductionmentioning

confidence: 99%

An Event-Based Resource Management Framework for Distributed Decision-Making in Decentralized Virtual Power Plants

2016

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Abstract:The Smart Grid incorporates advanced information and communication technologies (ICTs) in power systems, and is characterized by high penetration of distributed energy resources (DERs). Whether it is the nation-wide power grid or a single residential building, the energy management involves different types of resources that often depend on and influence each other. The concept of virtual power plant (VPP) has been proposed to represent the aggregation of energy resources in the electricity market, and distributed decision-making (DDM) plays a vital role in VPP due to its complex nature. This paper proposes a framework for managing different resource types of relevance to energy management for decentralized VPP. The framework views VPP as a hierarchical structure and abstracts energy consumption/generation as contractual resources, i.e., contractual offerings to curtail load/supply energy, from third party VPP participants for DDM. The proposed resource models, event-based approach to decision making, multi-agent system and ontology implementation of the framework are presented in detail. The effectiveness of the proposed framework is then demonstrated through an application to a simulated campus VPP with real building energy data.

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A Smart Strategy for Voltage Control Ancillary Service in Distribution Networks

Cited by 111 publications

References 18 publications

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

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

Coordinated Voltage Control With Online Energy Margin Constraints

An Event-Based Resource Management Framework for Distributed Decision-Making in Decentralized Virtual Power Plants

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