This paper maps the expected and possible adverse consequences for power quality of introducing several smart distribution-grid technologies and applications. The material presented in this paper is the result of discussions in an international CIGRE–CIRED joint working group. The following technologies and applications are discussed: 1) microgrids; 2) advanced voltage control; 3) feeder reconfiguration; and 4) demand-side management. Recommendations are given based on the mapping.

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Power Quality Concerns in Implementing Smart Distribution-Grid Applications

Grid integrated renewable DG systems: A review of power quality challenges and state-of-the-art mitigation techniques

On waveform distortion in the frequency range of 2 kHz–150 kHz—Review and research challenges

Hydrogen as a clean, reliable and potentially sustainable energy vector has attracted growing interest for promoting the sustainable development of both industry and society worldwide. Hydrogen is a rising enabler for a multisectorial transition toward a low-carbon economy based on renewable energy sources. Nevertheless, there is a lack of literature scientifically scrutinizing the relationships between a hydrogen economy and the United Nations Sustainable Development Goals. In this article, we argue that the new role of hydrogen takes effect as a game changer and review the policy framework for a hydrogen economy with respect to the prospects of success and its timing and to its role in supporting to reach the Goal 7, i.e. ‘affordable and clean energy’.

Hydrogen economy and sustainable development goals: Review and policy insights

After a brief historical introduction to the hosting-capacity approach, the hosting capacity is presented in this paper as a tool for distribution-system planning under uncertainty. This tool is il ...

https://www.mdpi.com/1996-1073/10/9/1325/pdf

Hosting Capacity of the Power Grid for Renewable Electricity Production and New Large Consumption Equipment

There is a serious interest from the international standard-setting community in knowledge about voltage and current distortion in the frequency range 2 to 150 kHz, referred to as supraharmonics. At the same time, research is ongoing at a number of locations, but the knowledge about supraharmonics remains limited. This paper compares some of the properties of harmonics and supraharmonics. An increase in supraharmonics for individual devices is observed in association with a decrease in harmonic emission (i.e. below 2 kHz). A proposal is made for setting limits in this frequency range. The proposal is based on existing standards and is meant to be for discussion. The authors strongly encourage an open discussion about the proposed limits. There are a number of differences between harmonics and supraharmonics that are not covered by the proposed set of limits. A substantial amount of further research is needed to extend the standard framework for supraharmonics such that this can be covered by standards.

Standards for supraharmonics (2 to 150 kHz)

A quantitative comparison approach for different voltage dip characterization methods

Sector coupling: Supporting decarbonisation of the global energy system

Allocation of emission limits for individual emitters at different voltage levels : flicker and harmonics

Magnus Olofsson

Papers

On waveform distortion in the frequency range of 2 kHz–150 kHz—Review and research challenges

Standards for supraharmonics (2 to 150 kHz)

A quantitative comparison approach for different voltage dip characterization methods

Sector coupling: Supporting decarbonisation of the global energy system

Allocation of emission limits for individual emitters at different voltage levels : flicker and harmonics