RWTH Aachen University


Computational Renewable Energy

Pascal Richter

Computational and Mathematical Modeling, Optimization and Uncertainty Quantification for Renewable Energy.


About Me

After my studies of mathematics and computer science at RWTH Aachen University I did my Ph.D. thesis in the research group of Prof. Martin Frank at MathCCES institute. Now I am PostDoc in the research group of Prof. Michael Herty (see my full Résumé below). My method-oriented research focuses on:

  1. Finite Volume Methods for Two-Phase Flow
  2. Modeling
  3. Optimization
  4. Uncertainty Quantification

These techniques are applied to several application areas. Furthermore, in interdisciplinary projects the group acts as a bridge to transfer advanced mathematical techniques to real-world problems. Examples include:

  1. Dynamic Control of Two-Phase Flow Through a Network of Solar Heated Tubes
  2. Optimal Heliostat Field Layouts for Solar Tower Power Plants
  3. Robust Placement of Wind Turbines in Offshore Wind Farms
  4. Optmized Routing of Data and Power Cables Within Wind Farms and Solar Fields
  5. Modeling and Simulation of Photovoltaic Cells

Detailed descriptions of selected Research Projects are given below.


   Short CV

  1. 06/17 - present:  PostDoc at IGPM institute, RWTH Aachen University
  2. 06/17:  PhD in Mathematics (with distinction) with M. Frank, RWTH Aachen University
  3. 06/11 - 06/17:  Research assistant at MathCCES institute, RWTH Aachen University
  4. 10/02 - 05/11:  Studies in Mathematics and Computer Science, RWTH Aachen University
  5. 05/11:  Diploma in Mathematics (with distinction) with M. Frank
  6. 12/09:  Diploma in Computer Science (very good) with E. Ábrahám


  Funded Interdisciplinary Projects

  1. Optimal Robust Aiming Strategies in Solar Tower Power Plants
    Modeling,   Uncertainty Quantification,   Robust Optimization
    Funding:  RWTH ERS Seed Fund
    Solar Tower Power Plant
    RWTH AVT
    RWTH Mathe 2
    With support of:    Abengoa
  2. Optimal Heliostat Fields for Solar Tower Power Plants
    Modeling,  Multi-Objective Optimization
    Funding:  BMWi (via the European solarEra Network)
    Solar Tower Power Plant
  3. Simulation of Direct Steam Generation in Solar Thermal Power Plants
    Two-Phase Flow,  Finite Volume Methods
    Funding:  RWTH Dean’s Seed Fund
    Linear CSP
    RWTH IGPM
    With support of:    Tubo Sol PE2
  4. Sensitivity Analysis of Offshore Wind Farms
    Modeling,  Uncertainty Quantification
    Funding:  RWTH Dean’s Seed Fund
    Offshore Wind Farm
    RWTH i2 Hybrid
    With support of:    Vattenfall

   Publications


Journal publications
  1. P. Richter, J. Lust, P. Cremerius, M. Schmidt, Y. Paris: Optimal Cable Routing in Offshore Wind Farms Using Heuristics and Exact Optimization Algorithms, Wind Energy (2017). [In Preparation]
  2. P. Richter, J. Wolters, R. Çakar, A. Verhoeven-Mrosek, M. Frank: Uncertainty Quantification of Offshore Wind Farms, Wind Energy (2017). [In Preparation]
  3. S. Müller, M. Hantke, P. Richter: Closure Conditions for Non-Equilibrium Multi-Component Models, Continuum Mechanics and Thermodynamics 28.4 (2016): 1157-1189.  

Refereed Proceedings
  1. P. Richter, J. Tinnes, P. Schwarzbözl, A. Rong, M. Frank: Efficient Ray-Tracing with Real Weather Data, Proceedings of the 23rd SolarPACES International Conference (2017).  
  2. P. Richter, G. Heiming, N. Lukas, M. Frank: SunFlower: A New Solar Tower Simulation Method for Use in Field Layout Optimization, Proceedings of the 23rd SolarPACES International Conference (2017).  
  3. P. Richter, D. Laukamp, L. Gerdes, M. Frank, E. Ábrahám: Heliostat Field Layout Optimization with Evolutionary Algorithms, Proceedings of the 2nd Global Conference on Artificial Intelligence (GCAI), Volume 41 of EPiC Series in Computing, EasyChair (2016), 240-252.  
  4. C. A. Domínguez-Bravo, S. J. Bode, G. Heiming, P. Richter, E. Carrizosa, E. Fernández-Cara, M. Frank, P. Gauché: Field-Design Optimization With Triangular Heliostat Pods, Proceedings of the 21st SolarPACES International Conference (2015).  
  5. P. Richter, M. Frank, E. Ábrahám: Multi-objective Optimization of Solar Tower Power Plants, Proceedings of the 18th European Conference on Mathematics for Industry (ECMI), Volume of Progress in Industrial Mathematics at ECMI 2014, Springer (2014), 771-778.  
  6. P. Richter, E. Ábrahám, G, Morin: Optimisation of Concentrating Solar Thermal Power Plants with Neural Networks, Proceedings of the International Conference on Adaptive and Natural Computing Algorithms (ICANNGA), Volume 6593 of LNCS, Springer (2013), 190–199.  
  7. G. Morin, P. Richter, P. Nitz: New Method and Software for Multi-Variable Techno-Economic Design Optimisation of Parabolic Trough Power Plants, Proceedings of the 16th SolarPACES International Conference (2010).  

Mathematics Education
  1. C. Roeckerath, S. Schönbrodt, P. Richter, M. Frank: Wie funktioniert eigentlich GPS? - Ein computergestützter Modellierungsworkshop, Springer (2017). [Submitted]
  2. M. Frank, K. Krycki, P. Richter, C. Roeckerath: Habe ich das Zeug zum MINT-Studium? Die CAMMP week als Orientierungshilfe für Schüler/innen , Proceedings of the 2nd khdm Workshop (2013).  
  3. M. Frank, K. Krycki, P. Richter, C. Roeckerath: CAMMP-Online: Wie funktioniert eigentlich... und was hat das mit Mathe zu tun? , Proceedings of the 2nd khdm Workshop (2013).  

Theses
  1. P. Richter: Simulation and Optimization of Solar Thermal Power Plants, Ph.D. Thesis, Department of Mathematics, RWTH Aachen University (2017).  
  2. P. Richter: Modellierung und Simulation der Direktverdampfung in Absorberrohren solarthermischer Kraftwerke, Diploma Thesis, Department of Mathematics, RWTH Aachen University and Fraunhofer ISE (2011).  
  3. P. Richter: Simulation und Auslegungsoptimierung solarthermischer Kraftwerke unter Einsatz evolutionärer Algorithmen und neuronaler Netze, Diploma Thesis, Department of Computer Science, RWTH Aachen University and Fraunhofer ISE (2009).  

  Supervised Student Projects


Master theses
  1. M. K. Lal: Solar Tower Heliostat Field Layout Optimization - A Black-Box Optimizer, Master Thesis, Department of Mathematics, RWTH Aachen University & IIT Madras (2017).  
  2. J. Wolters: Uncertainty Quantification Wind Farm Models, Master Thesis, Department of Mechanical Engineering, RWTH Aachen University (2016).  
  3. L. Gerdes: Generation of Probabilistic Models for Solar Thermal Power Plants, Master Thesis, Department of Computer Science, RWTH Aachen University (2016).  
  4. G. Jennessen: Optimierung eines Heliostatenfeldes unter Einsatz eines genetischen Algorithmus, Diploma Thesis, Department of Computer Science, RWTH Aachen University (2013).  

Bachelor theses
  1. P. Cremerius: Optimal Cable Layout for Offshore Wind Farms by Integer Linear Optimization, Bachelor Thesis, Department of Mathematics, RWTH Aachen University (2016).  
  2. J. Lust: Shortest Cable Routing in Offshore Wind Farms, Bachelor Thesis, Department of Mathematics, RWTH Aachen University (2016).  
  3. G. Heiming: Modeling and Simulation of Offshore Wind Farms, Bachelor Thesis, Department of Mechanical Engineering, RWTH Aachen University (2015).  

Project works
  1. K. Paul, Konstantin Key, M. Beikirch: Parallelized High-Order Finite Volume Methods on Non-Uniform 1D Grids, CES Project Work Thesis, Department of Mechanical Engineering, RWTH Aachen University (2016).  
  2. S. Jeschke, F. Löschner: Validation and Extension of the Eddy Viscosity Wake Model for Wind Turbines, CES Project Work Thesis, Department of Mechanical Engineering, RWTH Aachen University (2016).  
  3. M. Cherek, Y. Düren, M. Klösges, J. Stimm: Parallel Simulation of Two-Phase Flow Using Different Numerical Schemes in C++, CES Project Work Thesis, Department of Mechanical Engineering, RWTH Aachen University (2015).  

Seminars & Labs
  1. H. Mughis: Interactive WebGL for the Solar Tower Web Application, Computer Science Lab, RWTH Aachen University (2017).
  2. A. Rezchikova: Ensemble Averaging and its Application to Multicomponent Flows, Master Seminar, RWTH Aachen University (2016).  
  3. J. Schafer, N. Lukas, C. Kirchner, P. Bläser: Solar Tower Web Application, Computer Science Lab, RWTH Aachen University (2016).
  4. L. Netz, T. Hofmann, L. Banu: Improving the Solar Tower Model, Computer Science Lab, RWTH Aachen University (2016).
  5. R. Lad: Gradient Based Heliostat Field Layout Optimization, Master Seminar, RWTH Aachen University (2016).  
  6. M. Lüger, M. Mades, K. Jahns: Web Application Frontend for a Solar Tower Simulation Software, Computer Science Lab, RWTH Aachen University (2016).
  7. A. Faizan, M. Kajzer, S. Kurowski, A. Wachtel: Solartower Web Application - Simulation Backend, Computer Science Lab, RWTH Aachen University (2016).
  8. M. Erdenedash, E. Scharwächter: Topography and Area Constraints for Heliostat Power Plants, Computer Science Lab, RWTH Aachen University (2015).
  9. T. Marx, W. Pessin: GUI for Solartower Simulation and Optimization, Computer Science Lab, RWTH Aachen University (2015).
  10. C. Maluwelmeng: Modeling and Optimization of Solar Tower Power Plants, UROP project, RWTH Aachen University & Iowa State University (2014).
  11. L. Gerdes, M. Großfengels, D. Laukamp: Structured Optimization of a Heliostat Field, Computer Science Lab, RWTH Aachen University (2014).
  12. H. Spitzer, A. Mitseva, T. Berling: Multi-Objective Optimisation of a Solar Tower Heliostat Field, Computer Science Lab, RWTH Aachen University (2013).
  13. M. Hauer: Modeling Sun Shape and Reflective Error in a Solar Tower Power Plant, UROP project, RWTH Aachen University & University of Alberta (2012).
  14. M. Ewert, O. Navarro Fuentes: Modeling and Simulation of a Solar Tower Power Plant, Computer Science Lab, RWTH Aachen University (2012).
  15. A. Sutanto: Optimal Police Patrols, UROP project, RWTH Aachen University & Carnegie Mellon University (2011).

   Teaching

Lectures
  1. Mathematics IV (CES), summer term 2017
  2. Mathematics V (CES), winter term 2016/17
  3. Mathematics IV (CES), summer term 2016
  4. Mathematics V (CES), winter term 2015/16
  5. Mathematics IV (CES), summer term 2015
  6. Mathematics III (CES), winter term 2014/15
  7. Mathematics II (CES), summer term 2014
  8. Computational Engineering, winter term 2013/14
  9. Mathematics I (CES), winter term 2011/12
  10. Mathematics IV (CES), summer term 2011

Seminars & Labs
  1. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, winter term 2017/18
  2. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, summer term 2017
  3. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, winter term 2016/17
  4. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, summer term 2016
  5. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, winter term 2015/16
  6. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, summer term 2015
  7. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, winter term 2014/15
  8. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, summer term 2014
  9. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, winter term 2013/14
  10. Selected Topics in Renewable Energy: Modeling, Optimization & Visualization, summer term 2012

UROP Lab Projects
  1. Optimization of Solar Tower Power Plants, May-July 2014
  2. Modeling of Solar Tower Power Plants, May-July 2012
  3. Optimal Police Patrol, May-July 2011

Education Lab
  1. Modeling Week of Kaiser-Karls Gymnasium (high school) in Aachen, July 2013
  2. CAMMP Modeling Week in Voeren, Belgium, June 2013
  3. Modeling Week of Couven Gymnasium (high school) in Aachen, July 2012
  4. CAMMP Modeling Week in Voeren, Belgium, June 2012
  5. CAMMP Modeling Week in Nideggen, May 2011

SunFlower

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SunFlower WebApp

Research Projects

Optimal Cabling in Offshore Wind Farms

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Two-Phase Flow in Solar Thermal Power Plants

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Optimal Cabling in Solar Tower Power Plants

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Optimal Design Layout of Offshore Wind Farms

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Heliostat Field Layout Optimzation

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Sensitivity Analysis in Offshore Wind Farms

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Robust Aiming Strategies in Solar Tower Power Plants

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Optimal Control in Solar Thermal Power Plants

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News

6

Years of Research Experience

4

Funded Interdisciplinary Projects

8

Published Papers

25

Supervised Student Projects

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