IEEE PowerTech Conference 

About: IEEE PowerTech Conference is an academic conference. The conference publishes majorly in the area(s): Electric power system & AC power. Over the lifetime, 5411 publications have been published by the conference receiving 56246 citations.

An innovative modular multilevel converter topology suitable for a wide power range

Abstract: This paper presents a new multilevel converter topology suitable for very high voltage applications, especially network interties in power generation and transmission. The fundamental concept and the applied control scheme is introduced. Simulation results of a 36 MW-network intertie illustrate the efficient operating characteristics. A suitable structure of the converter-control is proposed.

Scenario reduction and scenario tree construction for power management problems

Abstract: Portfolio and risk management problems of power utilities may be modeled by multistage stochastic programs. These models use a set of scenarios and corresponding probabilities to model the multivariate random data process (electrical load, stream flows to hydro units, and fuel and electricity prices). For most practical problems the optimization problem that contains all possible scenarios is too large. Due to computational complexity and to time limitations this program is often approximated by a model involving a (much) smaller number of scenarios. The proposed reduction algorithms determine a subset of the initial scenario set and assign new probabilities to the preserved scenarios. The scenario tree construction algorithms successively reduce the number of nodes of a fan of individual scenarios by modifying the tree structure and by bundling similar scenarios. Numerical experience is reported for constructing scenario trees for the load and spot market prices entering a stochastic portfolio management model of a German utility.

String and module integrated inverters for single-phase grid connected photovoltaic systems - a review

Abstract: This work presents an overview on recent developments and a summary of the state-of-the-art in inverter technology for single-phase grid connected photovoltaic (PV) systems. The information provided includes details on commercially available European string and module integrated PV inverters, their efficiency, price trends and market share. This review is given for inverters for a power level up to 6 kW. Furthermore, the paper deals with the recent developments of new inverter topologies and PV system concepts and discusses possible future trends.

Sizing and Optimal Operation of Battery Energy Storage System for Peak Shaving Application

Abstract: This paper presents a sizing methodology and optimal operating strategy for a battery energy storage system (BESS) to provide a peak load shaving The sizing methodology is used to maximize a customer's economic benefit by reducing the power demand payment with a BESS of a minimum capacity, ie a system with a lowest cost The BESS optimal operating strategy is based on dynamic programming and is aimed to minimize the energy cost while satisfying battery physical constraints

Towards a European Strategy for the security of energy supply

Abstract: The liberalisation of markets, cross-border trading, the application of clean and renewable technologies, reducing emissions from power stations, improving energy efficiency: the electricity industry responsibilities go far beyond mere power supply to consumers. As we look forward to a European strategy for the security of energy supply, it is confident that the electricity industry will continue to carry out its task in a reliable and mature manner. In this way, electricity provision will continue to increase its importance in Europe's energy supply, and the electricity industry will be a vital and valued player in a future strategy for a secure and sustainable energy supply.