Moving Towards Future Electrical Systems: Multi-Terminal HVDC + Wind Power

25-28th November 2013

University of Seville

Seville Spain

Looking beyond 2030, the challenges for electricity networks are likely to increase. There exists general consensus that the challenges of climate change, economic development and system security.

The ability to accommodate significant volumes of decentralised and renewable generation, require that the network infrastructure must be upgraded to enable smart operation.

The future electricity networks and its potential issues require looking beyond the existing research frontiers irrespective of the disciplinary boundaries.

The objective of this seminar is to present the fundamental aspects about system frequency control and inertia response schemes for the future electrical systems.

Dr Gonzalez-Longatt is very pleased to present this seminar in University of Seville Spain, 25-28 November 2013..

General Outline:

All presentation can be downloaded, however, you would be requested several passwords during process to open the documents. You must contact Dr. Francisco M. Gonzalez-Longatt: requesting those passwords.

Module 0: Future Energy Systems

Context: Overview of Key Drivers Climate Change Energy Security Economic Development Changes and Challenges Massive Integration of renewable Energy Storage Systems Pan-European Transmission system

Module 1: Enabling Frequency Response of Renewable Energy Sources

       0. Agenda

Part I: Overview of System, Frequency Response Introduction Frequency Control in Classical Power Systems System Frequency Response (SFR)

  1. Introduction

  2. Frequency Control in Classical Power. Concepts associated, controllers involved (inertial response, governor response, and AVR), Requirements: Why frequency response is needs? Providers: generator-side, Demand-side, Protection schemes: Under frequency load shedding. Real-life examples.

  3.  Systems System Frequency Response (SFR). Models and techniques used for frequency stability analysis. Practical examples: MATLAB and DIgSILENT simulations. 

Part II: Inertia Response Schemes Synthetic or Artificial Inertia Frequency Response of Wind Turbines/Farms

  1. Synthetic or Artificial Inertia. Concepts and implementations, requirements of synthetic inertia.

  2. Frequency Response of Wind Turbines/Farms. Wind turbines technologies, Wind turbine controllers: Inertia Controller, Droop Control and De-loading control, Commercial concepts: GE WindINERTIA, Enercon WINDBLAST, Wind farm level controller: Local and Central. Practical examples.

Module 2: Enabling Frequency Response of Renewable Energy Sources

  1. Introduction into HVDC Systems

  2. HVDC Technologies: Natural Commutated Converters, Capacitor Commutated Converters (CCC), Forced Commutated Converters. HVDC Configurations, Classification of DC links, Line commutated current source converters (LCC), Voltage source converter (VSC), Comparison of LCC and VSC, Multilevel Converters, Modular Multilevel Converters (M2C).

  3. Components of an HVDC Transmission System.

  4. HVDC Control Systems: DC System Control: Basic philosophy. Power-flow control, Frequency control, Power/frequency control. Different control levels. Overall control co-ordination. Hierarchical power control.

  5. Integration of Wind Power Technologies Using HVDC

  6.  Enabling the HVDC systems to deliver frequency response. HVDC technologies, Multiterminal-HVDC: Local and central controllers. Wind Farms connected to HVDC to deliver frequency response. Practical examples.

Sent by: Dr. Francisco M. González-Longatt 1st December 2013.





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