Nicolai Lorenz-Meyer

Nicolai Lorenz-Meyer
Brandenburg University of Technology Cottbus - Senftenberg | BTU · Chair of Control Systems and Network Control Technology

Master of Science

About

7
Publications
389
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14
Citations
Additional affiliations
October 2019 - present
Brandenburg University of Technology Cottbus - Senftenberg
Position
  • PhD Student

Publications

Publications (7)
Preprint
Full-text available
We propose a novel decentralized mixed algebraic and dynamic state observation method for multi-machine power systems equipped with Phasor Measurement Units (PMUs). More specifically, we prove that for the third-order flux-decay model of a synchronous generator, the local PMU measurements give enough information to reconstruct algebraically the loa...
Preprint
The problem of effective use of Phasor Measurement Units (PMUs) to enhance power systems awareness and security is a topic of key interest. The central question to solve is how to use this new measurements to reconstruct the state of the system. In this paper we provide the first solution to the problem of (globally convergent) state estimation of...
Article
Full-text available
In the present paper, a lumped parameter model for the novel Silicon Granulate Crucible (SiGC) method is proposed, which is the basis for a future model‐based control system for the process. The model is analytically deduced based on the hydromechanical, geometrical, and thermal conditions of the process. Experiments are conducted to identify unkno...
Preprint
Dynamic state and parameter estimation methods for dynamic security assessment in power systems are becoming increasingly important for system operators. Usually, the data used for this type of applications stems from phasor measurement units (PMUs) and is corrupted by noise. In general, the impact of the latter may significantly deteriorate the es...
Preprint
Full-text available
Dynamic state and parameter estimation (DSE) plays a key role for reliably monitoring and operating future, power-electronics-dominated power systems. While DSE is a very active research field, experimental applications of proposed algorithms to real-world systems remain scarce. This motivates the present paper, in which we demonstrate the effectiv...
Article
The problem of effective use of Phasor Measurement Units (PMUs) to enhance power systems awareness and security is a topic of key interest. The central question to solve is how to use this new measurements to reconstruct the state of the system. In this paper we provide the first solution to the problem of (globally convergent) state estimation of...
Article
Full-text available
The authors propose a novel decentralised mixed algebraic and dynamic state observation method for multi‐machine power systems with unknown inputs and equipped with phasor measurement units (PMUs). More specifically, they prove that for the third‐order flux‐decay model of a synchronous generator, the local PMU measurements provide enough informatio...

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Projects

Project (1)
Project
Si single crystal growth from melt in a Si granulate crucible (Si-GC) is a novel concept to obtain dislocation-free crystals without contamination from a crucible material. The achievable purity depends only on the purity of the fluidized bed granules used as a low-cost feedstock material. We investigate the potential for a stable growth process for large-diameter crystals with a quality similar to Float-Zone Si.