Markus Schumacher

Vaillant Group

The introduction of high shares of renewable energy sources into the energy system leads to substantial changes in its operation. On the one hand, this holds true for the national energy system where the operation of conventional power plants needs to adapt to the availability of renewable energy sources. On the other hand, the electrical distribut...

In building energy systems (BES), operation strategies are a key factor to exploit the full potential of renewable energy sources and thus to reduce the CO 2 emission and energy costs. However, advanced operation strategies like model predictive control require high engineering effort, which limits the applicability. To ease the implementation of m...

This work presents an agent-based control concept that we integrate into a cloud framework for controlling building energy systems. The agents are arranged in a hierarchical structure, where a coordinator agent sends optimized set point values to sub-agents. Each sub-agent controls a subsystem in order to reach the given set points and provides the...

About 74 % of model calibrations happen manually. This work presents an automated calibration method. A key aspect of calibration is the identification of dominant model parameters, which for energy conversion systems, e.g. heat pumps, strongly depend on the operating state. Starting from energy monitoring data, we analyze the time series and ident...

About 74 % of model calibrations happen manually. This work presents an automated calibration method. A key aspect of calibration is the identification of dominant model parameters, which for energy conversion systems, e.g. heat pumps, strongly depend on the operating state. Starting from energy monitoring data, we analyze the time series and ident...

In building energy systems (BES), operation strategies are a key factor to exploit the full potential of renewable energy sources and thus to reduce the CO2 emission and energy costs. However, advanced operation strategies like model predictive control require high engineering effort, which limits the applicability. To ease the implementation of mo...

Low-cost system-on-a-chip (SoC) microcontrollers with integrated wireless network capabilities represent a constantly growing and reliable solution for interfacing industrial sensors and actuators commonly used in Building Automation Systems (BAS). These cheap and powerful devices are expediting the development of IoT applications and this process...

As detailed in the EPN process of Chapter 3, the Neighborhood Energy Manager (NEM) and owner/owners select the potential business models for the Neighborhood and have available a number of energy services, such as optimization, real-time monitoring, and forecasting to select for deployment on their Neighborhood energy management platform. Having id...

This paper describes the implementation of a Modelica library that is designed to enable fast composition and simulation of building heating, ventilation and air conditioning (HVAC) systems. The library is based on an approach which is focusing on the thermal behavior of the components. Compared to existing libraries, it has no information about th...

Die Windenergienutzung nimmt bei den erneuerbaren Energieträgern eine führende Rolle ein. Während in der Offshore-Windenergienutzung noch große technische Herausforderungen für eine kommerzielle Nutzung zu meistern sind, stellt der Ersatz veralteter Anlagentechnik (Repowering) im Onshore-Bereich eine interessante Alternative dar. Dieser Beitrag lie...