Absorbing the Rays: Advanced Inverters Help Integrate PV into Electric Utility Distribution Systems

Steffel, Steve; Dinkel, A.

doi:10.1109/mpe.2012.2234406

Cited by 7 publications

(5 citation statements)

References 3 publications

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“…For simplicity, the cost of maintaining most voltage regulating switching devices in a power system network is usually assumed to be proportional to the number of times the devices carries out its switching operations [41,42]. Different SIs setting affects the voltage profile of the distribution feeder differently, thereby causing the number of switching operations of these devices to differ.…”

Section: Economic Impact Analysismentioning

confidence: 99%

Smart Inverters Functionalities and their Impacts on Distribution Feeders at High Photovoltaic Penetration: An Overview

Olowu,

Sarwat

2020

Preprint

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The increase in grid-connected photovoltaic (PV) systems has been consistent over the years. Several studies have reported the impacts of this increase on the distribution networks such as reverse power flow, voltage fluctuations, possible increase in system losses amongst others. With this rise in PV penetration level, it becomes necessary for grid tied smart inverters (SI) to be allowed to participate in feeder voltage regulation. Till date, no comprehensive technical review and analysis has been done on the impact and interaction of existing and proposed SI settings on the existing legacy voltage control devices. This paper presents a novel technical review and analysis of some voltage regulation settings of SIs and their impacts on distribution feeders including their interaction with legacy devices such as capacitors, on/off Load Tap Changers, their impact on the feeder losses, harmonic effects and economic impacts (expressed as the device cost factor) and circuit impact index (CII). The analysis of these functionalities is done using the standard IEEE 8500 distribution feeder, integrated with six PVs (based on real PV parameters and data), and strategically located with actual irradiance and temperature profile from a 1.4MW PV plant located at FIU. These PV locations were carefully selected to allow for detailed impacts studies. The results show how the various SI functions impact the reactive power injection and switching of the capacitor banks, the voltage regulator switching, the losses in the feeder, the harmonic and the CII. The Volt-Watt with rise/fall rate-ofchange limiting setting showed the least impact in terms of the CII, voltage regulator tapping and capacitor switching but with high amount of losses compared to other SI functions.

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Section: Economic Impact Analysismentioning

confidence: 99%

Smart Inverters Functionalities and their Impacts on Distribution Feeders at High Photovoltaic Penetration: An Overview

Olowu,

Sarwat

2020

Preprint

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“…T3: (Dec)entralized. A central (common) control objective is decomposed and delegated to independent local control elements; the local control elements only use local measurements and actuators; examples are [38]- [40]. In the following, T2 D is classified further, based on the mutual roles of control elements in an architecture: T2.1 D-(V)ertical.…”

Section: Architecturesmentioning

confidence: 99%

Taxonomy for Evaluation of Distributed Control Strategies for Distributed Energy Resources

Han

Heussen

Gehrke

et al. 2018

IEEE Trans. Smart Grid

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Abstract-Distributed control strategies applied to power distribution control problems are meant to offer robust and scalable integration of distributed energy resources (DER). However, the term "distributed control" is often loosely applied to a variety of very different control strategies. In particular there is a lack of discrimination between aspects related to communication topology, physical distribution of components and associated control objectives. This has lead to a lack of objective criteria for performance comparison and general quality assessment of state of the art distributed control solutions. For such comparison, a classification is required that is consistent across the different aspects mentioned above. This paper develops systematic categories of control strategies that accounts for communication, control and physical distribution aspects of the problem, and provides a set of criteria that can be assessed for these categories. The proposed taxonomy is applied to the state of the art as part of a review of existing work on distributed control of DER. Finally, we demonstrate the applicability and usefulness of the proposed classification to researchers and system designers.

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“…Due to the wide PV power incorporation on the SG, new inverters named smart or advanced inverters are being developed [11]. The main advantage of the advanced inverters is to prevent PV systems from going offline when there is no need [12].…”

Section: Introductionmentioning

confidence: 99%

Towards the use of Unbundle Smart Meter for advanced inverters integration

Delgado-Gomes

Martins

Lima

et al. 2017

2017 IEEE 26th International Symposium on Industrial Electronics (ISIE)

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The Smart Grid (SG) implementation requires a constant monitoring and control of the power network. An Advanced Metering Infrastructure (AMI) allows the Distribution System Operator (DSO) to know what is happening on the power network. However, existing smart meters are not prepared for an emerging energy market nor to be integrated with LV/MV dispatch centres. The Unbundle Smart Meter (USM) concept allows the integration of existing smart meters in the SG, decreasing deployment costs. This paper presents the USM approach for power inverters management. The USM acts as a residential gateway, enabling the control of energy home devices using an IP-based secure communication network. The USM hosts the necessary services and drivers to provide the end-user with the capability to answer Demand Response (DR) requests from the DSO.

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Absorbing the Rays: Advanced Inverters Help Integrate PV into Electric Utility Distribution Systems

Cited by 7 publications

References 3 publications

Smart Inverters Functionalities and their Impacts on Distribution Feeders at High Photovoltaic Penetration: An Overview

Smart Inverters Functionalities and their Impacts on Distribution Feeders at High Photovoltaic Penetration: An Overview

Taxonomy for Evaluation of Distributed Control Strategies for Distributed Energy Resources

Towards the use of Unbundle Smart Meter for advanced inverters integration

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