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Applied Sciences
Special Issues
Smart PV Generation with Energy Storage
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Smart PV Generation with Energy Storage

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (31 May 2019) | Viewed by 8862

Special Issue Editor

Dr. Dezso Sera

E-Mail Website1 Website2
Guest Editor
Department of Energy Technology, Aalborg University, DK-9220 Aalborg, Denmark
Interests: photovoltaic systems; power electronics; PV systems modelling, diagnostics and monitoring; PV+ energy storage; PV grid integration
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We invite you to submit your original research or overview papers to this Special Issue, entitled “Smart PV Generation with Energy Storage”, in Applied Sciences.

Energy storage (ES) supports higher grid penetration for renewables, and it is an especially good fit for coupling with distributed photovoltaic (PV) generation by enabling local generation, storage, and consumption of energy also in the built-up areas.

Considering that the price learning curve of PV systems, along with energy storage—especially battery systems—are among the steepest in the energy industry, PV-ES systems hold an enormous potential to become an essential component of the energy mix.

Large scale deployment of PV-ES systems however requires continued research and development effort within, e.g., efficient and flexible PV-ES integration, energy management strategies, and coordinated control from Distribution System Operator (DSO) / retailer to maximize the value of distributed generation and storage.

In this Special Issue, we therefore welcome contributions within the general area of PV-ES systems. Specific topics could include, but are not limited to:

  • Power electronic converter topologies and control for integration of energy storage with PV
  • Modular PV-ES systems for large power plants and residential applications
  • Grid support and services by PV-ES systems
  • Energy management/operational strategies to maximize user benefits from PV-ESS (e.g., maximizing self-consumption)
  • Energy tariff models to support higher adoption of PV-ESS especially in residential applications
  • Coordinated control of distributed PV-ES systems

Dr. Dezso Sera
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (3 papers)

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Research

18 pages, 4511 KiB  
Article
A Novel Modular Multiport Converter for Enhancing the Performance of Photovoltaic-Battery Based Power Systems
by Ahmed M Fares, Christian Klumpner and Mark Sumner
Appl. Sci. 2019, 9(19), 3948; https://doi.org/10.3390/app9193948 - 20 Sep 2019
Cited by 8 | Viewed by 2560
Abstract
This paper introduces a novel multiport power converter with modular architecture for photovoltaic (PV)-battery based power systems. Compared to conventional centralized multiport converters, the proposed converter significantly improves the utilization of PV available energy and battery capacity as it does not require a [...] Read more.
This paper introduces a novel multiport power converter with modular architecture for photovoltaic (PV)-battery based power systems. Compared to conventional centralized multiport converters, the proposed converter significantly improves the utilization of PV available energy and battery capacity as it does not require a high number of series-connected PV and battery modules. The proposed converter also eliminates the need for additional battery cell/module equalizer circuitry by being able to implement directly energy management strategies that consider the different capabilities of battery modules to ensure charge/stress balancing. This makes it a promising solution for interfacing second-life batteries or for systems that utilize batteries with a high degree of mismatch. The modularity of the proposed converter enhances system reliability and fault tolerance and reduces the power/voltage ratings of the power electronic devices. The converter modes of operation, control strategy and design considerations are discussed. A 75 V/1 kW integrated PV-battery power system prototype is built and tested to validate the concept. Full article
(This article belongs to the Special Issue Smart PV Generation with Energy Storage)
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11 pages, 4257 KiB  
Article
Case Studies for Non-Detection of Islanding by Grid-Connected In-Parallel Photovoltaic and Electrical Energy Storage Systems Inverters
by Jong Rok Lim, Hye Mi Hwang, Woo Gyun Shin, Hyung-Jun Song, Young-Chul Ju, Young Seok Jung, Gi Hwan Kang and Suk Whan Ko
Appl. Sci. 2019, 9(5), 817; https://doi.org/10.3390/app9050817 - 26 Feb 2019
Cited by 3 | Viewed by 2082
Abstract
In Korea, there is a rule for Renewable Energy Certification with weighting 5.0, to expand grid linkage capacity and to improve the stability of the grid to accommodate photovoltaic (PV) systems in a distributed power system. Due to this rule, many power companies [...] Read more.
In Korea, there is a rule for Renewable Energy Certification with weighting 5.0, to expand grid linkage capacity and to improve the stability of the grid to accommodate photovoltaic (PV) systems in a distributed power system. Due to this rule, many power companies and operators are trying to install electrical energy storage systems that are able to operate in conjunction with PV system power. These systems operate in parallel at the same grid connection point. This paper presents the results of case studies on the failure to detect islanding operation. Test evaluation devices that could be bi-directionally charged and discharged were implemented for an islanding detection test. Testing was conducted under a variety of operating conditions. When a single inverter was operated under the islanding condition, it was stably stopped within 0.5 s using the Korean grid-code standard. However, when two inverters were operated at the same time under the islanding condition, islanding detection failed and the two inverters continued to feed the connected RLC (resistor, inductor, capacitor) loads in the isolated section known as an island. Different algorithms used by PCS (power conversion system) manufacturers to detect islanding might cause this phenomenon. Therefore, it is necessary for a new PCS test standard to detect islanding. Full article
(This article belongs to the Special Issue Smart PV Generation with Energy Storage)
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14 pages, 2242 KiB  
Article
Single-Phase PV Power Injection Limit due to Voltage Unbalances Applied to an Urban Reference Network Using Real-Time Simulation
by Alexandre Lucas
Appl. Sci. 2018, 8(8), 1333; https://doi.org/10.3390/app8081333 - 09 Aug 2018
Cited by 22 | Viewed by 3791
Abstract
As photovoltaic (PV) penetration increases in low-voltage distribution networks, voltage variation may become a problem. This is particularly important in residential single-phase systems, due to voltage unbalances created by the inflow of points in the network. The existing literature frequently refers to three-phase [...] Read more.
As photovoltaic (PV) penetration increases in low-voltage distribution networks, voltage variation may become a problem. This is particularly important in residential single-phase systems, due to voltage unbalances created by the inflow of points in the network. The existing literature frequently refers to three-phase systems focusing on losses and voltage variations. Many studies tend to use case studies whose conclusions are difficult to replicate and generalise. As levels of residential PV rise, single-phase PV power injection levels, before voltage unbalances reach standard limits, become important to be investigated. In this study, an urban European reference network is considered, and using a real-time digital simulator, different levels of PV penetration are simulated. PV systems are connected to the same phase (unbalanced case), and are also evenly phase-distributed (balanced case). Considering a 2–3% unbalance limit, approximately 3.5–4.6 kW could be injected in every bus in an unbalanced scenario. With a balanced PV distribution, the power injected could reach 10–13 kW per bus. Buses closer to the power transformer allow higher power connections, due to cable distances and inferior voltage drops. Feeder length, loads considered during simulation, and cable shunt capacitance reactance influence the results the most. Full article
(This article belongs to the Special Issue Smart PV Generation with Energy Storage)
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