Grid interfacing-converter-systems

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Leonardo ENERGY

Grid-Interfacing Converter Systems with Enhanced Voltage Quality Fei Wang

Contents ,[object Object],[object Object],[object Object],[object Object],[object Object]

Transition to the future grid ,[object Object],[object Object],[object Object],[object Object]

Conventional electricity grid ,[object Object],[object Object],[object Object],Generation Transmission Distribution Loads

Voltage quality problems ,[object Object],[object Object],[object Object],[object Object],Generation Transmission Distribution Loads

Distributed generation in the grid Energy Storages Distributed Generation Distribution networks Grid-interfacing converters

Path to the future grid

Path to the future grid

Series-parallel grid-interfacing systems ,[object Object]

Series-parallel grid-interfacing systems ,[object Object]

Series-parallel grid-interfacing systems ,[object Object]

Series-parallel grid-interfacing systems ,[object Object],[object Object]

Reconfiguring system functionalities ,[object Object],[object Object],[object Object]

Reconfiguring system functionalities ,[object Object],[object Object],[object Object],[object Object],[object Object]

Reconfiguring system functionalities ,[object Object],[object Object],[object Object],[object Object],[object Object]

Comparison with shunt systems ,[object Object],[object Object]

Control design and implementation ,[object Object]

Control design and implementation ,[object Object],[object Object],[object Object]

Control design – parallel converter ,[object Object]

Control design – parallel converter ,[object Object],Bode plots of the plant transfer function Feedforward loop

Control design – parallel converter ,[object Object],Bode plots of the open-loop transfer function with multiple PR controllers Multiple PR controllers

Control design – parallel converter ,[object Object],System sensitivity to current disturbances Inner current feedback loop

Control design – series converter ,[object Object]

Control design – series converter Inverter output voltage to feedback current when Bode plots of open-loop transfer function

Laboratory system

Experimental results ,[object Object],[object Object],(a) WITHOUT low-order harmonic compensation (b) WITH low-order harmonic compensation

Experimental results ,[object Object],Frequency spectra of the phase current Series-converter current Injected series voltage

Experimental results ,[object Object],Distorted grid voltage (6.7%THD) Output voltage of the series-converter Output voltage of the parallel converter Currents delivered to the grid

Experimental results ,[object Object],Grid voltage (phase a & b dip to 80%) Output voltage of the series-converter Output voltage of the parallel converter Currents delivered to the grid

Conclusions and recommendations ,[object Object],[object Object],[object Object],[object Object]

References ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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This presentation discusses the contribution of Energy Efficiency Funds to the financing of energy efficiency in Europe. The analysis is based on the MURE database on energy efficiency policies. As an example, the German Energy Efficiency Fund is described in more detail. This is the 17th webinar in the Odyssee-Mure on Energy Efficiency Academy. Recordings are available on: https://youtu.be/KIewOQCgQWQ

Energy Efficiency Funds in Europe (updated)

Energy Efficiency Funds in Europe (updated)

Energy Efficiency Funds in Europe (updated)

Leonardo ENERGY

(see updated version of this presentation: https://www.slideshare.net/sustenergy/energy-efficiency-funds-in-europe-updated) The Energy Efficiency First Principle is a key pillar of the European Green Deal. A prerequisite for its widespread application is to secure financing for energy efficiency investments. This presentation discusses the contribution of Energy Efficiency Funds to the financing of energy efficiency in Europe. The analysis is based on the MURE database on energy efficiency policies. As an example, the German Energy Efficiency Fund is described in more detail. This is the 17th webinar in the Odyssee-Mure on Energy Efficiency Academy. Recordings are available on: https://youtu.be/KIewOQCgQWQ

Energy Efficiency Funds in Europe

Energy Efficiency Funds in Europe

Energy Efficiency Funds in Europe

Leonardo ENERGY

During the first year of the H2020 project streamSAVE, multiple activities were organized to support countries in developing savings estimations under Art.3 and Art.7 of the Energy Efficiency Directive (EED). A fascinating output of the project so far is the “Guidance on Standardized saving methodologies (energy, CO2 and costs)” for a first round of five so-called Priority Actions. This Guidance will assist EU member states in more accurately calculating savings for a set of new energy efficiency actions. This webinar presents this Guidance and other project findings to the broader community, including industry and markets. AGENDA 14:00 Introduction to streamSAVE (Nele Renders, Project Coordinator) 14:10 Views from the EU Commission and the link with Fit-for-55 (Anne-Katherina Weidenbach, DG ENER) 14:20 The streamSAVE guidance and its platform illustrated (Elisabeth Böck, AEA) 14:55 A view from industry: What is the added value of streamSAVE (standardized) methods in frame of the EED (Conor Molloy, AEMS ECOfleet) 14:55 Country experiences: the added value of standardized methods (Elena Allegrini, ENEA, Italy) The recordings of the webinar can be found on https://youtu.be/eUht10cUK1o

Five actions fit for 55: streamlining energy savings calculations

Five actions fit for 55: streamlining energy savings calculations

Five actions fit for 55: streamlining energy savings calculations

Leonardo ENERGY

This webinar analyses energy efficiency trends in the EU for the period 2014-2019 and the impact of COVID-19 in 2020 (based on estimates from Enerdata). The speakers present the overall trend in total energy supply and in final energy consumption, as well as details by sector, alongside macro-economic data. They will explain the main drivers of the variation in energy consumption since 2014 and determine the impact of energy savings. Speakers: Laura Sudries, Senior Energy Efficiency Analyst, Enerdata Bruno Lapillonne, Scientific Director, Enerdata The recordings of the presentation (webinar) can be viewed at: https://youtu.be/8RuK5MroTxk

Recent energy efficiency trends in the EU

Recent energy efficiency trends in the EU

Recent energy efficiency trends in the EU

Leonardo ENERGY

Prior to the current soaring energy prices across Europe, the European Commission proposed, as part of the FitFor55 climate and energy package, the EU Social Climate Fund to mitigate the expected social impact of extending the EU ETS to transport and heating. The report presented in this webinar provides an update of the European Energy Poverty Index, published for the first time in 2019, which shows the combined effect of energy and mobility poverty across Member States. Beyond the regular update of the index, the report provides analysis of the existing EU policy framework related to energy and transport poverty. France is used as a case study given the “yellow vest” movement, which was triggered by the proposed carbon tax on fuels. Watch the recordings of the webinar: https://youtu.be/i1Jdd3H05t0

Energy and mobility poverty: Will the Social Climate Fund be enough to delive...

Energy and mobility poverty: Will the Social Climate Fund be enough to delive...

Energy and mobility poverty: Will the Social Climate Fund be enough to delive...

Leonardo ENERGY

This policy brief analyzes the main interacting mechanisms between the Energy Efficiency Directive (EED) and the EU Emission Trading Scheme (ETS). It presents a detailed top-down approach, based on the ODYSSEE energy indicators, to identify energy savings from the EU ETS. The main task consists in isolating those factors that contribute to the change in energy consumption of industrial branches covered by the EU ETS, and the energy transformation sector (mainly the electricity sector). Speaker: Wolfgang Eichhammer (Head of the Competence Center Energy Policy and Energy Markets @Fraunhofer Institute for Systems and Innovation Research ISI) The recordings of this webinar can be watched via: https://youtu.be/TS6PxIvtaKY

Does the EU Emission Trading Scheme ETS Promote Energy Efficiency?

Does the EU Emission Trading Scheme ETS Promote Energy Efficiency?

Does the EU Emission Trading Scheme ETS Promote Energy Efficiency?

Leonardo ENERGY

The first part of the presentations presents the energy efficiency improvements in the manufacturing sector since 2000, and the role of structural change between the different branches and energy savings. It will compare the improvements in Denmark and other countries with EU average. This part is based on ODYSSEE data. The second part of the presentation presents the development in Denmark in more detail, and it will compare the energy efficiency improvement, corrected for structural change, with the reported savings from the Energy Efficiency Obligation Scheme. Recordings of the live webinar are on https://youtu.be/VVAdw_CS51A

Energy efficiency, structural change and energy savings in the manufacturing ...

Energy efficiency, structural change and energy savings in the manufacturing ...

Energy efficiency, structural change and energy savings in the manufacturing ...

Leonardo ENERGY

This policy brief looks at questions ‘how to measure energy sufficiency’, ‘which policies and measures can be used to address energy sufficiency’ and ‘how they are used in Europe today’. Energy sufficiency refers to a situation where everyone has access to the energy services they need, whilst the impacts of the energy system do not exceed environmental limits. The level of ambition needed to address energy sufficiency is higher than in the case of energy efficiency. This is the 13th edition of the Odyssee-Mure on Energy Efficiency Academy, and number 519 in the Leonardo ENERGY series. The recording of the live presentation can be found on https://www.youtube.com/watch?v=jEAdYbI0wDI&list=PLUFRNkTrB5O_V155aGXfZ4b3R0fvT7sKz

Energy Sufficiency Indicators and Policies (Lea Gynther, Motiva)

Energy Sufficiency Indicators and Policies (Lea Gynther, Motiva)

Energy Sufficiency Indicators and Policies (Lea Gynther, Motiva)

Leonardo ENERGY

The Super-efficient Equipment and Appliance Deployment (SEAD) Initiative Prod...

The Super-efficient Equipment and Appliance Deployment (SEAD) Initiative Prod...

The Super-efficient Equipment and Appliance Deployment (SEAD) Initiative Prod...

Leonardo ENERGY

Modelling and optimisation of electric motors with hairpin windings

Modelling and optimisation of electric motors with hairpin windings

Modelling and optimisation of electric motors with hairpin windings

Leonardo ENERGY

Casting zero porosity rotors

Casting zero porosity rotors

Casting zero porosity rotors

Leonardo ENERGY

Direct coil cooling through hollow wire

Direct coil cooling through hollow wire

Direct coil cooling through hollow wire

Leonardo ENERGY

Motor renovation - Potential savings and views from various EU Member States

Motor renovation - Potential savings and views from various EU Member States

Motor renovation - Potential savings and views from various EU Member States

Leonardo ENERGY

The need for an updated European Motor Study - key findings from the 2021 US...

The need for an updated European Motor Study - key findings from the 2021 US...

The need for an updated European Motor Study - key findings from the 2021 US...

Leonardo ENERGY

Efficient motor systems for a Net Zero world, by Conrad U. Brunner - Impact E...

Efficient motor systems for a Net Zero world, by Conrad U. Brunner - Impact E...

Efficient motor systems for a Net Zero world, by Conrad U. Brunner - Impact E...

Leonardo ENERGY

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A new generation of instruments and tools to monitor buildings performance

A new generation of instruments and tools to monitor buildings performance

A new generation of instruments and tools to monitor buildings performance

Addressing the Energy Efficiency First Principle in a National Energy and Cli...

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Addressing the Energy Efficiency First Principle in a National Energy and Cli...

Auctions for energy efficiency and the experience of renewables

Auctions for energy efficiency and the experience of renewables

Auctions for energy efficiency and the experience of renewables

Energy efficiency first – retrofitting the building stock final

Energy efficiency first – retrofitting the building stock final

Energy efficiency first – retrofitting the building stock final

How auction design affects the financing of renewable energy projects

How auction design affects the financing of renewable energy projects

How auction design affects the financing of renewable energy projects

Energy Efficiency Funds in Europe (updated)

Energy Efficiency Funds in Europe (updated)

Energy Efficiency Funds in Europe (updated)

Energy Efficiency Funds in Europe

Energy Efficiency Funds in Europe

Energy Efficiency Funds in Europe

Five actions fit for 55: streamlining energy savings calculations

Five actions fit for 55: streamlining energy savings calculations

Five actions fit for 55: streamlining energy savings calculations

Recent energy efficiency trends in the EU

Recent energy efficiency trends in the EU

Recent energy efficiency trends in the EU

Energy and mobility poverty: Will the Social Climate Fund be enough to delive...

Energy and mobility poverty: Will the Social Climate Fund be enough to delive...

Energy and mobility poverty: Will the Social Climate Fund be enough to delive...

Does the EU Emission Trading Scheme ETS Promote Energy Efficiency?

Does the EU Emission Trading Scheme ETS Promote Energy Efficiency?

Does the EU Emission Trading Scheme ETS Promote Energy Efficiency?

Energy efficiency, structural change and energy savings in the manufacturing ...

Energy efficiency, structural change and energy savings in the manufacturing ...

Energy efficiency, structural change and energy savings in the manufacturing ...

Energy Sufficiency Indicators and Policies (Lea Gynther, Motiva)

Energy Sufficiency Indicators and Policies (Lea Gynther, Motiva)

Energy Sufficiency Indicators and Policies (Lea Gynther, Motiva)

The Super-efficient Equipment and Appliance Deployment (SEAD) Initiative Prod...

The Super-efficient Equipment and Appliance Deployment (SEAD) Initiative Prod...

The Super-efficient Equipment and Appliance Deployment (SEAD) Initiative Prod...

Modelling and optimisation of electric motors with hairpin windings

Modelling and optimisation of electric motors with hairpin windings

Modelling and optimisation of electric motors with hairpin windings

Casting zero porosity rotors

Casting zero porosity rotors

Casting zero porosity rotors

Direct coil cooling through hollow wire

Direct coil cooling through hollow wire

Direct coil cooling through hollow wire

Motor renovation - Potential savings and views from various EU Member States

Motor renovation - Potential savings and views from various EU Member States

Motor renovation - Potential savings and views from various EU Member States

The need for an updated European Motor Study - key findings from the 2021 US...

The need for an updated European Motor Study - key findings from the 2021 US...

The need for an updated European Motor Study - key findings from the 2021 US...

Efficient motor systems for a Net Zero world, by Conrad U. Brunner - Impact E...

Efficient motor systems for a Net Zero world, by Conrad U. Brunner - Impact E...

Efficient motor systems for a Net Zero world, by Conrad U. Brunner - Impact E...

Grid interfacing-converter-systems

1. Grid-Interfacing Converter Systems with Enhanced Voltage Quality Fei Wang

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Hinweis der Redaktion

Situations/Problems of existing grids; driving to the next generation of grid; before that, take a look the existing grid
Situations/Problems of existing grids; driving to the next generation of grid; before that, take a look the existing grid
Depends on large central power stations; centralized control; unidirectional; Difficult to upgrade the existing grid due to increasing power demand; Context: current flow through the feeder and transformer impedance introduce voltage drop, ant that means voltage appearing at the user sides can be shaped/influenced by the current.
Voltage quality problems, steady-state ones and transient ones; main features in the grid and conventional solutions; fluctuations (including voltage and frequency) Context: can be even worse due to the change of existing grid
Flexible operation; Bottom-up solutions Flexibility, complexity, reliability, quality …… concepts, ideas, detailed power electronic control, implementations… Context: a smart operation of a future grid can be complex, but also must be smartly organized so as to achieve smart and flexible control, some concepts have been proposed, and what we proposed?
Converter systems with enhanced voltage quality basic electricity energy delivery from DG to the grid integrate previously proposed control and solutions protect local system from grid disturbances power flow control under disturbed situations for grid support