Publication

A Novel Multilevel Converter Structure Integrated into Power Systems and its Performance Evaluation

Alfred Rufer, Stephan Kenzelmann
2009
Conference Papers

Abstract

The paper introduces an advanced multicellular power converter structure for flexible power management in future electricity networks. The power converter structure is analysed and the control approaches required in order to overcome the technical challenges of power flow control in such a structure are presented. The operation of the control is verified by simulations and supported by prototype converter experimental results. The results show that the proposed system control works satisfactorily and thus fulfills expected functionality.

Official source

https://infoscience.epfl.ch/entities/publication/96247d10-f8f5-4b91-9b06-fb5c8fd4001e

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Alfred Rufer, Stephan Kenzelmann
2009
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/96247d10-f8f5-4b91-9b06-fb5c8fd4001e

About this result

Related concepts (24)

Control flow

In computer science, control flow (or flow of control) is the order in which individual statements, instructions or function calls of an imperative program are executed or evaluated. The emphasis on explicit control flow distinguishes an imperative programming language from a declarative programming language. Within an imperative programming language, a control flow statement is a statement that results in a choice being made as to which of two or more paths to follow.

Control theory

Control theory is a field of control engineering and applied mathematics that deals with the control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the application of system inputs to drive the system to a desired state, while minimizing any delay, overshoot, or steady-state error and ensuring a level of control stability; often with the aim to achieve a degree of optimality. To do this, a controller with the requisite corrective behavior is required.

High-voltage direct current

A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. Most HVDC links use voltages between 100 kV and 800 kV. However, a 1,100 kV link in China was completed in 2019 over a distance of with a power capacity of 12 GW. With this dimension, intercontinental connections become possible which could help to deal with the fluctuations of wind power and photovoltaics.

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