Evaluation of Power Quality Measurement System Concept using an experimental setup

Kitzig, Jan-Philipp; Bumiller, Gerd

doi:10.1109/i2mtc.2019.8826814

Cited by 9 publications

(1 citation statement)

References 7 publications

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“…For electric drive systems with semiconductor converters, operation of which causes distortions in the shape of currents and voltages, both calculations and measurements of energy characteristics are difficult, since models and estimates of the parameters of electric power processes for nonlinear systems do not have unambiguous and generally accepted definitions [11].…”

Section: Introductionmentioning

confidence: 99%

Mathematical model of the closed-loop system of excavator bucket positioning

Tytiuk¹,

Chornyi²,

Mrachkovskyi³

et al. 2023

Nauk. visn. nat. hirn. univ.

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Purpose. Study on energy consumption of mechatronic systems of mining excavators during the full production cycle, development of energy efficiency criterium for the production cycle of mining excavators, which ensures an increase in the technical and economic indicators of the operation of powerful mining equipment. Methodology. Mathematical modeling of electro-mechanical system of “front shovel” excavator, determination indicators of the production cycle, development of the criterion of energy efficiency of the mining excavator’s operating cycle taking into account the theory of technical systems efficiency. Findings. A mathematical model of a complete electro-mechanical system of an excavator with “generator-engine” electric drive has been developed, which includes a model of the mechanical part of the excavator. The closed-loop bucket positioning system makes it possible to implement various movement trajectories during the operating cycle. Numerical characteristics of energy consumption and duration for various movement trajectories of the working bodies of the excavator are obtained. A new criterion of energy efficiency of mechatronic systems of mining excavators is proposed. Originality. For the first time, a mathematical model has been proposed of an integral electro-mechanical system of an excavator according to the “front shovel” scheme, which includes models of electric drives of all mechanisms and a synchronous drive motor, as well as a model of the mechanical part of the excavator; this makes it possible to increase the accuracy of determining the excavator’s energy consumption and the operating cycle time. A criterion of energy efficiency is proposed, which takes into account the amount of resource costs, the overall result and the duration of the excavator’s operating cycle. Practical value. A mathematical model of the electromechanical system of an excavator with an electric drive according to the “generator-motor” system has been developed, which, taking into account the solution of the direct and inverse problems of the kinematics of the mechanical system of the excavator, makes it possible to compare parameters of various trajectories of movement of the excavator. The implementation of a closed system for positioning the excavator bucket in three-dimensional space was proposed, which creates conditions for increasing the level of automation of mining excavators. A criterion of the energy efficiency of the excavator’s technological cycle is proposed, which takes into account resource costs and the technological cycle duration.

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Section: Introductionmentioning

confidence: 99%

Mathematical model of the closed-loop system of excavator bucket positioning

Tytiuk¹,

Chornyi²,

Mrachkovskyi³

et al. 2023

Nauk. visn. nat. hirn. univ.

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Determining the parameters of the trajectory of the bucket of mining quarries excavators

et al. 2021

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The bucket positioning of the excavator in three-dimensions (3-D) is the precondition of the robotic excavator starting automatized works. The electric excavator is one of the most widely used machinery in the mining industry, mainly due to its versatility and portability. Among the tasks performed by the excavator, there is a significant number of repetitive movements associated with moving the bucket to the unloading point and back to the face. Using automated functions to perform such repetitive tasks will not only significantly increase overall productivity, but also reduce energy consumption. This research is carried out to create a method of coordinate control of electric drives of the boom, dipper stick, and bucket of an electric excavator to perform accurate and efficient work. On the basis of the kinematic analysis of the excavator’s attachment system, the trajectory of the end of the working body can be determined from the point of view of the coordinated movement of the electric drives of the main mechanisms of the excavator. Thus, the complex algorithm of the excavator bucket 3-D position control can be carried out by coordinated control of the movement of three separate electric drives. This coordinate control algorithm was tested on the example of the EKG-8I excavator, and the results of the verification showed that this developed control method can satisfactorily perform the function of automatic control of the bucket position in three-dimensional space. Optimization of control will be further carried out based on the analysis of the energy efficiency of various possible trajectories.

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Using Mains Frequency Synchronously Sampled Data for Frequency and RoCoF Event Detection

Kitzig

Bumiller

2021

2021 IEEE 11th International Workshop on Applied Measurements for Power Systems (AMPS)

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Evaluation of Power Quality Measurement System Concept using an experimental setup

Cited by 9 publications

References 7 publications

Mathematical model of the closed-loop system of excavator bucket positioning

Mathematical model of the closed-loop system of excavator bucket positioning

Determining the parameters of the trajectory of the bucket of mining quarries excavators

Using Mains Frequency Synchronously Sampled Data for Frequency and RoCoF Event Detection

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