Reactive Power Support Using Photovoltaic Systems

Techno-Economic Analysis and Implementation Algorithms

verfasst von: Dr. Oktoviano Gandhi

Verlag: Springer International Publishing

Buchreihe : Springer Theses

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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Über dieses Buch

With the widespread adoption of photovoltaic (PV) systems across the world, many researchers, industry players, and regulators have been exploring the use of reactive power from PV to support the grid. This thesis is the first to comprehensively quantify and analyse the techno-economic cost and benefits of reactive power support using PV. On top of formulating the cost of PV reactive power and identifying the feasible range of its monetary incentives, this thesis has also proposed practical methods to implement the reactive power dispatch effectively and efficiently, with and without communication infrastructure. The findings and approaches in this work can therefore help power system planners and operators towards better integration of PV into the electrical grid, both in terms of regulation and implementation.

Inhaltsverzeichnis

Frontmatter

Chapter 1. Introduction

Abstract

Climate change is one of the world’s most pressing issues, and most climate scientists agree that the Earth temperature is on track to increase by more than two degrees above pre-industrial levels—thereby inducing flooding of low-lying countries and extreme weather conditions throughout the world, among other severe and irreversible effects—if countries do not reduce their fossil fuels consumption [1]. That is why in the 2015 United Nations Climate Change Conference in Paris (also known as the Paris Agreement), the world leaders have agreed to accelerate the “reduction of global greenhouse gas emissions” through increased adoption of renewable energies [2].

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Chapter 2. Analysis of Local Reactive Power Provision Using PV in Distribution Systems

Abstract

Approximately 50% of global PV installations have occurred at the distribution level by the end of 2015 [1]. And in many countries, the share of distributed PV systems can go much higher, e.g. 80% of the PV capacity in Germany and nearly all of PV capacity in Italy and Australia [2, 3]. By having the solar power generation close to where the load is consumed, transmission losses can be significantly reduced [4], voltage improved, and congestion of the lines avoided [5].

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Chapter 3. Analytical Approach to Power Dispatch in Distribution Systems

Abstract

In Chap. 2, the benefits of local reactive power provision using PV inverters have been demonstrated. The next logical step would be to assess the implementation of the power dispatch optimisation in the distribution system in the presence of other DERs that are becoming inseparable aspects of future power system. This chapter expands the work based on the insights from the previous chapter on reactive power compensation (RPC) using PV to include other inverter-based DERs and proposes a practical way to optimise the power dispatch.

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Chapter 4. Inverter Degradation Consideration in Reactive Power Dispatch

Abstract

Even though many researchers assume that PV inverters are able to provide reactive power compensation (RPC) at no cost, there are tradeoffs involved in injecting/absorbing reactive power through the inverter.

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Chapter 5. Reactive Power Dispatch for Large Number of PV Installations

Abstract

The reactive power controls proposed in the literature can be categorised into three types: centralised, distributed, and local control. The classification of decentralised control in [1], defined as “intermediate state between centralised and distributed control” shall be classified as distributed control for the remainder of this work as both distributed and decentralised controls in [1] require some forms of communication. It is also noted that there are other definitions of distributed and decentralised which assume no communication [2], but those controls are defined as local in this work.

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Chapter 6. Conclusions and Future Works

Abstract

This thesis presents a comprehensive analysis on reactive power compensation (RPC) using PV in distribution systems, which includes detailed quantification of the costs and benefits of the RPC, as well as centralised and local algorithms to optimise the reactive power dispatch of numerous PVs in the system.

Oktoviano Gandhi

Backmatter

Titel: Reactive Power Support Using Photovoltaic Systems
verfasst von: Dr. Oktoviano Gandhi
Verlag: Springer International Publishing
Electronic ISBN: 978-3-030-61251-1
Print ISBN: 978-3-030-61250-4
DOI: https://doi.org/10.1007/978-3-030-61251-1