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Gas-Insulated Transmission Line
Published in John D. McDonald, Electric Power Substations Engineering, 2017
The second principle solution is to control the power flow by use of electronic equipment in the transmission net using FACTS and HVDC equipment. FACTS stands for Flexible AC Transmission System, which is able to control the power flow on a transmission line via electronic valves (thyristors). HVDC stands for High Voltage DC and is using also electronic valves for power flow control with a DC transmission line between the two HVDC converter stations at its ends. This electronic control can prevent outages in cases when the power flow can be rerouted without creating new overload sections, bottlenecks, and other locations.
Solutions for Transient Stability Issues of Fixed-Speed Wind Generator Systems
Published in Mohd Hasan Ali, Wind Energy Systems, 2017
A static synchronous compensator (STATCOM) is a second-generation flexible AC transmission system controller based on a self-commutating solid-state voltage source inverter. It is a shunt-connected reactive compensation equipment that is capable of generating or absorbing reactive power whose output can be varied to maintain control of specific parameters of the electric power system. As can be seen from Figure 8.5, excluding the DC-to-DC chopper and SMES coil the remaining components represent the basic two-level STATCOM, which is used in this book.
The Energy Control Center
Published in Mohamed E. El-Hawary, Electrical Energy Systems, 2008
FACTS is an acronym for flexible AC transmission systems. They use power electronic controlled devices to control power flows in a transmission network so as to increase power transfer capability and enhance controllability. The concept of flexibility of electric power transmission involves the ability to accommodate changes in the electric transmission system or operating conditions while maintaining sufficient steady state and transient margins.
Contingency analysis and adoption of STATCOM in highly renewable energy penetrated Western Grid of Bangladesh
Published in Cogent Engineering, 2022
Pollen Barua, Ratul Barua, Vineet Shekher, Muhammad Quamruzzaman, M.G Rabbani
Renewable energy has been very popular to get integrated with any existing power system. It needs reliability and security too like conventional power systems. Contingency analysis is a key parameter to increase the security of the power system. As the power system depends on numerous variables, it is not always feasible to carry out contingency in a short time. Moreover, renewable energy is weather dependent. Adoption of machine learning (ML) algorithms can solve this issue by handling several variables in the power system. If the system is learnt with some real parameters that come from real scenarios, ML can predict or classify the issues of unknown or later events. Thus, it enables power system operators to adjust the system operating parameters quickly to attain the reliability of a power system with renewables. Also, adoption of Flexible AC Transmission System (FACTS) enables the system to increase the stability with a high percentage of renewable energy systems. This paper shows several ML algorithm-based contingency analysis of Bangladesh Power System with prospective highly renewable energy penetration besides the improvement in steady state stability with STATCOM (static synchronous compensator) in the most effective bus of it.
Optimal Localization and Sizing of UPFC to Solve the Reactive Power Dispatch Problem Under Unbalanced Conditions
Published in IETE Journal of Research, 2020
Shilpa S. Shrawane Kapse, Manoj B. Daigavane, Prema M. Daigavane
Minimizing the problem of power loss in transmission lines and minimizing the voltage deviation at the load buses by controlling the reactive power is referred to as Optimal Reactive Power Dispatch (ORPD). Reactive power is needed for the flow of active power through the transmission and distribution system and to maintain the voltage for delivering active power through the transmission lines [1,2]. To reduce the real power loss as well as the overloading of lines, Flexible AC Transmission System (FACTS) devices are used in the power system. FACTS devices are effective for the static as well as the dynamic state of voltage control in power transmission and distribution [3–5]. The principal function of the FACTS devices is to inject the reactive power into the system and thereby, improving the voltage profile of the system [6,7].
Design and Performance Analysis of WSCC System Using Modified Grey Wolf Optimization for Optimal Power Quality Enhancement
Published in Electric Power Components and Systems, 2023
T. Dineshkumar, P. Thirumoorthi
Flexible AC transmission system (FACTS) is a technology that is employed in the power grid to optimize the power transfer capacity and increase the reliability and performance of the electricity flow control network. Some of the commonly used shunt FACTS devices are STATCOM or SSC and SVC, while Gate-Turn-Off Thyristor-Controlled Series Condenser (GCSC), Thyristor Controlled Series Condenser (TCSC), and Static Synchronous Series Compensator (SSSC) are series FACTS technologies. These are generally linked in a power transmission line system for regulation of line impedance, which in turn controls the active power flow and line current. However, they are not competent in controlling reactive and active power flow simultaneously as well as independently.