Open AccessProceedings Article
Novel phase shifted carrier modulation for a cascaded H-bridge multi-level StatCom
Christopher D. Townsend,Terrence J. Summers,Robert E. Betz +2 more
- pp 1-10
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TLDR
In this article, a phase shifted carrier modulation scheme is proposed to avoid the loop interactions by exploiting an extra degree of freedom in the available switching states, which avoids the loop interaction.Abstract:
Phase shifted carrier modulation enforces harmonic cancellation through each phase-leg in a multi-level H-bridge StatCom (H-StatCom). The implementation of this scheme, while achieving excellent harmonic performance suffers from control interactions between the voltage balancing loops. This paper first analyses these interactions and then develops a phase shifted carrier modulation scheme which avoids the loop interactions by exploiting an extra degree of freedom in the available switching states. Simulation and experimental results are presented that confirm the correct operation of the modulation strategy.read more
Citations
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Journal ArticleDOI
Optimization of Switching Losses and Capacitor Voltage Ripple Using Model Predictive Control of a Cascaded H-Bridge Multilevel StatCom
TL;DR: In this paper, a model predictive control (MPC) scheme was proposed to exploit the large number of redundant switching states available in a multilevel H-bridge StatCom (H-StatCom).
Journal ArticleDOI
Phase-Shifted Carrier Modulation Techniques for Cascaded H-Bridge Multilevel Converters
TL;DR: Simulation and experimental results are presented that confirm the correct operation of the modulation strategies and develop two phase-shifted carrier modulation schemes that avoid harmonic degradation by exploiting an extra degree of freedom in the available switching states.
Journal ArticleDOI
Delta-Connected Cascaded H-Bridge Multilevel Converters for Large-Scale Photovoltaic Grid Integration
Yifan Yu,Georgios Konstantinou,Christopher D. Townsend,Ricardo P. Aguilera,Vassilios G. Agelidis +4 more
TL;DR: This paper quantifies the performance of, and experimentally confirms, the recently proposed delta-connected CHB converter for PV applications as an alternative configuration for large-scale PV power plants.
Journal ArticleDOI
Impact of Practical Issues on the Harmonic Performance of Phase-Shifted Modulation Strategies for a Cascaded H-Bridge StatCom
TL;DR: Simulation and experimental results are presented which show that the harmonic performance of the PSC technique deteriorates as the number of voltage levels produced by the H-StatCom increases.
Proceedings ArticleDOI
Model Predictive Control of a cascaded H-bridge multi-level StatCom
TL;DR: In this paper, a model predictive control (MPC) scheme for multi-level H-bridge StatComs is proposed, which is able to exploit the redundancy in the available switching states to optimize three competing objectives.
References
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Journal ArticleDOI
Multilevel inverters: a survey of topologies, controls, and applications
TL;DR: The most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-Clamped (flying capacitor), and cascaded multicell with separate DC sources are presented and the circuit topology options are presented.
Book
Pulse Width Modulation for Power Converters: Principles and Practice
D. Grahame Holmes,Thomas A. Lipo +1 more
TL;DR: In this paper, an integrated and comprehensive theory of PWM is presented and the selection of the best algorithm for optimum pulse width modulation is an important process that can result in improved converter efficiency, better load (motor) efficiency, and reduced electromagnetic interference.
Book
Instantaneous power theory and applications to power conditioning
TL;DR: The p-q theory in three-phase, four-wire Shunt Active Filters as discussed by the authors has been applied to power flow control in power electronics equipment and has been shown to be useful in many applications.
Journal ArticleDOI
Control and Performance of a Transformerless Cascade PWM STATCOM With Star Configuration
TL;DR: In this paper, a three-phase transformerless cascade PWM static synchronous compensator (STATCOM) is proposed for installation on industrial and utility power distribution systems, which devotes itself to meeting the demand of reactive power but also to voltage balancing of multiple galvanically isolated and floating dc capacitors.