Impacts of varying penetration of distributed resources with &amp; without volt/var control: Case study of varying load types

Rizy, D.T.; Li, Huijuan; Li, Fangxing; Xu, Yan; Adhikari, Sarina; Irminger, Philip

doi:10.1109/pes.2011.6039014

Cited by 10 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e location of PV is another important factor that determines how much it may affect the operation of VRs. For [76,192,195,231] Effects of installing PVs at different locations in the grid with different voltage levels [66,69,92,148,159,227] Power flow in the feeder (reactive power) [67,76,78,83,84,89,112,125,153,189,197,224,239] Power flow in the feeder (active power) [ e shortcoming of this scenario is that voltage control of the feeder becomes mainly dependent on PV power. So if a group of PVs disconnect or reduce power injection due to cloudy conditions, this could lead to voltage sag that, under extreme scenarios, could result in false tripping of protective relays [261].…”

Section: Operation Instances Of Vrs Scsmentioning

confidence: 99%

“…Traditionally, this has been done using VRs and SCs; however, the authors of [214] argued that with a proper control scheme, PVs can be utilized efficiently to achieve CVR. e researchers of [83,264] investigated how different ways of modeling loads would change the conclusions about the impact of PVs on the grid. ey observed that modeling the loads as constant power, constant impedance, or a mixture of the two would result in different values for power losses (less than 10% difference).…”

Section: Miscellaneous Effectsmentioning

confidence: 99%

See 1 more Smart Citation

Impact of Rooftop Photovoltaics on the Distribution System

Alboaouh

Mohagheghi

2020

Journal of Renewable Energy

View full text Add to dashboard Cite

This paper presents a review of the impact of rooftop photovoltaic (PV) panels on the distribution grid. This includes how rooftop PVs affect voltage quality, power losses, and the operation of other voltage-regulating devices in the system. A historical background and a classification of the most relevant publications are presented along with the review of the important lessons learned. It has been widely believed that high penetration levels of PVs in the distribution grid can potentially cause problems for node voltages or overhead line flows. However, it is shown in the literature that proper control of the PV resource using smart inverters can alleviate many of those issues, hence paving the way for higher PV penetration levels in the grid.

show abstract

Section: Operation Instances Of Vrs Scsmentioning

confidence: 99%

Section: Miscellaneous Effectsmentioning

confidence: 99%

Impact of Rooftop Photovoltaics on the Distribution System

Alboaouh

Mohagheghi

2020

Journal of Renewable Energy

View full text Add to dashboard Cite

show abstract

“…Some technical difficulties may impact the efficiency in electric power systems, and among them, DG is gaining relevance. It has been shown DG penetration above certain level can increase losses and power demand of voltage-dependent loads, if no corrective actions are undertaken [12][13][14]. In this regard, the LTV dependence has been included in studies for DG planning [15,16] and operation [17,18]; nevertheless, to the best of the author's knowledge, the interaction between LTV dependence and MHC has not been yet studied.…”

Section: Energy Efficiencymentioning

confidence: 99%

“…In (12), the actual active power injected by a generator at a specific bus and time period is calculated. Constraint (13) establishes the generation curtailment cannot be greater than the available active power.…”

Section: Problem Formulationmentioning

confidence: 99%

Stochastic assessment of distributed generation hosting capacity and energy efficiency in active distribution networks

Quijano

Wang

Sarker

et al. 2017

IET Generation, Transmission & Distribution

View full text Add to dashboard Cite

Active network management (ANM) aims to increase the capacity of variable distributed generation (DG), which can be connected to existing distribution networks. In this study, it is proposed to simultaneously consider the efficient use of energy resources when high shares of DG are procured through the ANM approach. To that end, a multi-period and multiobjective optimisation algorithm, based on the linearised optimal power flow, is formulated. The algorithm seeks to maximise the installed capacity of DG while minimising the energy losses and consumption of voltage-dependent loads. The objectives are optimised considering the coordinated operation of voltage regulators and on-load tap changers, and the management of DG generation curtailment and reactive power compensation from DG. Additionally, the effects of load and generation uncertainties are addressed through a two-stage stochastic programming formulation of the multiobjective problem. The result is a set of noninferior solutions, which allows exploring the degree of conflict among the objectives. The proposed approach was tested on two IEEE test feeders and the solutions show a significant improvement in the system's energy efficiency with a low impact on the amount of connected DG.

show abstract

“…Works considering different objectives such as minimization of active power losses, voltage deviation and total energy cost, have been proposed in [9]- [12]. The impact of DG in feeders with different load composition is also addressed in some studies [13], [14]. Although, most of the aforementioned works consider the DG as a reactive power source, only in [15] is studied its relation with the CVR.…”

Section: B Conservation Voltage Reduction and Dgmentioning

confidence: 99%

Assessment of Conservation Voltage Reduction effects in networks with distributed generators

Quijano

Padilha‐Feltrin

2015

2015 IEEE PES Innovative Smart Grid Technologies Latin America (ISGT LATAM)

View full text Add to dashboard Cite

Conservation Voltage Reduction (CVR) has been an efficient way to achieve power demand reduction and, consequently, a relief in distribution networks. In this work is presented an assessment of the distributed generation (DG) impacts on the efficiency achieved with the CVR. The DG is considered as a controllable source of active and reactive power through an approach based on an integrated Volt-Var control (IVVC). It is expected, that centralized control methodologies will be increasingly present in distribution networks, in a scenario with the so-called smart grids. The analysis is made for the network operation phase through a simulation-based method. Tests were performed on a 95 bus test system using the multiobjective algorithm NSGA-II as optimization tool. Conclusions are made by comparing scenarios of DG with and without reactive power control capability.

show abstract

Impacts of varying penetration of distributed resources with & without volt/var control: Case study of varying load types

Cited by 10 publications

References 6 publications

Impact of Rooftop Photovoltaics on the Distribution System

Impact of Rooftop Photovoltaics on the Distribution System

Stochastic assessment of distributed generation hosting capacity and energy efficiency in active distribution networks

Assessment of Conservation Voltage Reduction effects in networks with distributed generators

Contact Info

Product

Resources

About