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Martin Sirovy

Bio: Martin Sirovy is an academic researcher from University of West Bohemia. The author has contributed to research in topics: Centrifugal pump & Heating system. The author has an hindex of 4, co-authored 18 publications receiving 40 citations.

Papers
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Proceedings ArticleDOI
18 Oct 2020
TL;DR: The paper focuses on the benefits of close integration of battery based energy storage directly into thermal plants and the use of the energy storage for primary frequency control in cooperation with classical steam turbine control.
Abstract: The paper focus on the benefits of close integration of battery based energy storage directly into thermal plants. The attention is paid to use of the energy storage for primary frequency control in cooperation with classical steam turbine control. The model topology of the turbomachinery with all modifications is described and discussed. Three case studies are investigated – the primary frequency control managed by either only turbine, only energy storage and by cooperation of both turbine and energy storage. The other benefits of integration energy storage into power plant systems are discussed in the conclusion.

11 citations

Proceedings ArticleDOI
01 Dec 2011
TL;DR: In this article, a case study analysis of flow control methods and appropriate technical implementations for high-power pump systems employed in thermal and nuclear power plants or heating plants is presented, where the main attention is focused on a comparison of two advanced variable speed control strategies employing VSD with frequency converter and VSD using hydrodynamic coupling.
Abstract: In this paper, a comprehensive case study analysis of flow control methods and appropriate technical implementations for high-power pump systems employed in thermal and nuclear power plants or heating plants will be presented. The main attention is focused on a comparison of two advanced variable speed control strategies employing VSD with frequency converter and VSD with hydrodynamic coupling.

8 citations

Proceedings ArticleDOI
01 Sep 2010
TL;DR: In this paper, a developed software for design and optimization of variable speed drives (VSDs) for high-power water pumps and fans in power and heating plants is presented.
Abstract: This paper deals with a developed software for design and optimization of variable speed drives (VSDs) for high-power water pumps and fans in power and heating plants. The paper presents the physical background of modeling and proposed models of a variable speed drive with frequency converter.

6 citations

Proceedings ArticleDOI
01 Nov 2011
TL;DR: In this paper, a comparison of variable speed drives (VSDs) with frequency converter and hydrodynamic coupling was performed for high power pump systems with flow control based on variable speed drive.
Abstract: This paper deals with an analysis and comparison of high-power pump systems with flow control based on variable speed drives (VSDs). The attention is focused on a comparison of two advanced variable speed control strategies employing VSD with frequency converter and VSD with hydrodynamic coupling. Due to a very different nature of both drives it is a challenging task to compare them to each other, especially, in the area where a tiny efficiency improvement causes substantial energy consumption and/or CO 2 emission reduction. The paper presents comparison of both VSDs in typical fields of their application (power plant, heating plant) in the form of case study. The calculations were performed using the software which we have developed for design, optimization and sophisticated comparison of these drives. Description of physical background of modeling and proposed models is also included.

6 citations

Proceedings ArticleDOI
25 Apr 2021
TL;DR: In this paper, the authors describe and simulate different differential order synchronous machine models in MATLAB and evaluate the response of the models on the three phase short circuit fault, including pros and cons of each model as well as appropriate applications.
Abstract: The descriptions and simulations of different differential order synchronous machine models are analyzed in this paper. Focus is paid on the Power System Analyses Toolbox models in the Simulink environment (MATLAB). The response of the models on the three-phase short circuit fault is evaluated, including pros and cons of each model as well as appropriate applications. The verification of the results is based on comparison with another independent synchronous machine model and analytical three phase short circuit calculation based on the operational measurements and observations.

5 citations


Cited by
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01 Jan 2014
TL;DR: In this paper, a cost benefit analysis was carried out to compare different renovation business models and proved that EPCs can be applied for extensive renovations reducing the annual costs for residents and ensuring safe, comfortable and sustainable housing.
Abstract: Abstract Energy Performance Contracts (EPCs) are very seldom used in the residential sector, especially for extensive renovations of multi-family or apartment buildings. Only up to 10% of energy service companies’ activities are targeted in the sector. A cost benefit analysis was carried out to compare different renovation business models. It was proved that EPCs can be applied for extensive renovations reducing the annual costs for residents and ensuring safe, comfortable and sustainable housing.

17 citations

Journal ArticleDOI
TL;DR: In this paper , the authors proposed a system to improve the flexibility of the electricity grid by using a system-level energy storage and power plant cycling scheme, but they incur high operational and investment costs.
Abstract: Increasing renewable energy requires improving the electricity grid flexibility. Existing measures include power plant cycling and grid-level energy storage, but they incur high operational and investment costs. Using a systems...

11 citations

Proceedings ArticleDOI
01 Nov 2013
TL;DR: Physical principle and functionality of the proposed sensorless rotor position estimation technique are described and the theoretical foundations are verified by simulation and experimental results made on developed drive prototype of rated power of 10kW.
Abstract: This paper presents a novel estimation approach to sensorless control of wound rotor synchronous motor drives. The proposed rotor position estimation strategy is motivated by principle function of a resolver and utilizes design similarity between the controlled motor and the resolver based rotor position sensor. The rotor circuit is fed by controlled three-phase bridge rectifier which produces an ac component of frequency of 300Hz in the rotor excitation (flux) current. This ac component of rotor excitation current can be understood like an injection signal. Its response on the stator is evaluated by simplified Kalman filter which estimates the rotor position. This paper describes physical principle and functionality of the proposed sensorless rotor position estimation technique and verifies the theoretical foundations by simulation and experimental results made on developed drive prototype of rated power of 10kW.

10 citations