Smart Distribution Systems

Jiang, Yazhou; Liu, Chen Ching; Xu, Yin

doi:10.3390/en9040297

Cited by 33 publications

(16 citation statements)

References 68 publications

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“…Besides, HRES such as photovoltaic-energy storage systems (PV-ESS) and microgrid distribution systems can be used as black-start energy. Based on them, new restoration strategies are proposed in [53,54]. The power flow analysis and voltage imbalance evaluation for HRES [11,[50][51][52][53][54][55] is still a challenge in power system restoration.…”

Section: Hybrid Renewable Energy System For Restorationmentioning

confidence: 99%

A Novel Sectionalizing Method for Power System Parallel Restoration Based on Minimum Spanning Tree

Zhang

et al. 2017

Energies

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Parallel restoration is a way to accelerate the black-start procedure of power systems following a blackout. An efficient sectionalizing scheme can reduce the restoration time of a system, taking into account the black-start ability, generation-load balance of subsystems, restoration time of branches, start-up time of generating units, and effects of dispatchable loads and faulted devices. Solving the sectionalizing problem is challenging since it needs to handle a large number of Boolean variables corresponding to the branches and nonlinear constraints associated with system topology. This paper investigates power system sectionalizing problem for parallel restoration to minimize the system restoration time (SRT). A novel sectionalizing method considering the restoration of generating units and network branches is proposed. Firstly, the minimum spanning tree (MST) algorithm is used to determine the skeleton network of a power system. Secondly, the number of subsystems is determined according to the number of black-start units. Based on the skeleton network, candidate boundary lines among subsystems are identified. Then, constraints are evaluated to identify feasible sectionalizing schemes. Except commonly used constraints on power balancing and black-start units, this paper also considers using dispatchable loads to meet the minimum output requirements of generating units. Finally, the sectionalizing scheme with the minimum SRT is selected as the final solution. The effectiveness of the proposed method is validated by the IEEE 39-bus and 118-bus test systems. The simulation results indicate that the proposed method can balance the restoration time of subsystems and minimize the SRT.

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Section: Hybrid Renewable Energy System For Restorationmentioning

confidence: 99%

A Novel Sectionalizing Method for Power System Parallel Restoration Based on Minimum Spanning Tree

Zhang

et al. 2017

Energies

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“…The effective management of electricity still fulfills an important role in achieving the objectives of the sustainable development strategy, particularly addressed by the European Union's energy policy [1,2]. Distribution systems require two key performance indicators: efficient delivery, and reliability of service [3]. Their monitoring and controllability have been enhanced with the ongoing smart grid development [4].…”

Section: Introductionmentioning

confidence: 99%

An Innovative Bidirectional DC-AC Converter to Improve Power Quality in a Grid-Connected Microgrid

Bissey¹,

Jacques²,

Reymond³

et al. 2018

Preprint

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The management of the electrical energy still raises a huge interest for end-users at the household level. Home electricity management systems (HEMS) have recently emerged both to warrant uninterruptible power and high power quality, and to decrease the cost of electricity consumption, by either shifting it in off peak time or smoothing it. Such a HEMS requires a bidirectional DC-AC converter, specifically when an energy transfer is required between a storage system and the AC-grid, and vice versa. This article points out the relevance of an innovative topology based on sinusoidal waveforms from the generation of sine half-waves. Such a topology is based on a DC-DC stage equivalent to an adjustable output voltage source and a DC-AC stage (H-bridge) which are in series. The results of a complete experimental procedure prove the feasibility to improve the power quality of the output signals in terms of total harmonic distortion (THD-values about 5%). The complexity of the proposed converter is minimized in comparison with multilevel topologies. Finally, wide band-gap semiconductor devices (SiC MOSFETs) are helpful both to warrant the compactness and the high efficiency (about 96%) of the bidirectional converter, whatever its operation mode (inverter or rectifier mode).

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“…Also, DSM on a large scale proactively addresses complex consumption dynamics (utilities' and consumers' behaviors); with the support of (ICT) and dynamic pricing schemes, respectively [50]. In addition, advanced active network management (ANM) techniques mentioned in [54] and enhanced outage management systems (OMS) described in [6]; have expected to play a vital role in optimized asset utilization. The SDN-based management models need to consider factors like load forecasting, uncertainty, and economic viability.…”

mentioning

confidence: 99%

Smart Distribution Networks: A Review of Modern Distribution Concepts from a Planning Perspective

et al. 2017

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Smart grids (SGs), as an emerging grid modernization concept, is spreading across diverse research areas for revolutionizing power systems. SGs realize new key concepts with intelligent technologies, maximizing achieved objectives and addressing critical issues that are limited in conventional grids. The SG modernization is more noticeable at the distribution grid level. Thus, the transformation of the traditional distribution network (DN) into an intelligent one, is a vital dimension of SG research. Since future DNs are expected to be interconnected in nature and operation, hence traditional planning methods and tools may no longer be applicable. In this paper, the smart distribution network (SDN) concept under the SG paradigm, has presented and reviewed from the planning perspective. Also, developments in the SDN planning process have been surveyed on the basis of SG package (SGP). The package presents a SDN planning foundation via major SG-enabling technologies (SGTF), anticipated functionalities (SGAF), new consumption models (MDC) as potential SDN candidates, associated policies and pilot projects and multi-objective planning (MOP) as a real-world optimization problem. In addition, the need for an aggregated SDN planning model has also been highlighted. The paper discusses recent notable related works, implementation activities, various issues/challenges and potential future research directions; all aiming at SDN planning.

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Smart Distribution Systems

Cited by 33 publications

References 68 publications

A Novel Sectionalizing Method for Power System Parallel Restoration Based on Minimum Spanning Tree

A Novel Sectionalizing Method for Power System Parallel Restoration Based on Minimum Spanning Tree

An Innovative Bidirectional DC-AC Converter to Improve Power Quality in a Grid-Connected Microgrid

Smart Distribution Networks: A Review of Modern Distribution Concepts from a Planning Perspective

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