Keywords

Continuously Variable Series Reactor (CVSR) Modeling, Gyrator-Capacitor Model, Hysteresis, CVSR Applications, Fault Current Limiting, Voltage Balancing

Abstract

In today's rapidly evolving energy landscape, the Continuously Variable Series Reactor (CVSR) emerges as a vital tool for enhancing the stability and efficiency of power systems. This proposal presents a detailed investigation into the operational characteristics and performance optimization of CVSR through advanced modeling techniques. The Continuously Variable Series Reactor (CVSR) offers a unique capability to regulate the reactance of an AC circuit through the magnetizing characteristic of its ferromagnetic core. By utilizing both AC and DC windings, the CVSR effectively controls power flow, dampens oscillations, and balancing the voltage within the power grid. To effectively integrate CVSR into grid operations, a comprehensive understanding of its operational characteristics is crucial.

Utilizing the gyrator-capacitor approach, electromagnetic coupling between the controlled AC circuit and the controlling DC circuit of the CVSR can be accurately modeled. This proposal delves into an investigation of various aspects of CVSR behavior, including the induced voltage across the DC winding, flux density within the core's branches, and the power exchange between the two circuits. These analyses, providing valuable insights into the performance and potential applications of CVSR technology within power systems. Additionally, different DC control circuit configurations to optimize AC reactance modulation efficiency is explored. By understanding the implications of various control strategies on system stability, we aim to identify the best operational approaches for real-world grid applications.

The primary contribution of this proposal lies in the improved modeling of a CVSR. While the past approach involved the utilization of MEC, certain limitations were encountered. The adoption of the specific G-C approach enables the consideration of power exchange between circuits. Additionally, the incorporation of hysteresis modeling enhances the accuracy of the model.

Furthermore, while the original purpose of the CVSR was power flow control, this proposal extends its application to include voltage balancing as well.

In summary, this proposal seeks to advance our understanding of CVSR technology and its potential impact on modern energy systems. By clarifying the relationships between magnetic flux dynamics, induced voltages, and power exchange, we seek to pave the way for significant improvements in grid management and infrastructure resilience

Completion Date

2025

Semester

Summer

Committee Chair

Dimitrovski, Aleksandar

Degree

Doctor of Philosophy (Ph.D.)

College

College of Engineering and Computer Science

Department

Department of Electrical and Computer Engineering

Format

PDF

Identifier

DP0029552

Language

English

Document Type

Thesis

Campus Location

Orlando (Main) Campus

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