Swing Bus
Swing Bus - Related Videos
01:21
The Swing Equation
0 Views •
2024
The Swing Equation is a fundamental tool in power system dynamics, especially for analyzing the behavior of generating units like three-phase synchronous generators. This equation emerges from applying Newton's second law to the rotor of a generator, encompassing factors such as inertia, angular acceleration, and the interplay between mechanical and electrical torques. In a steady-state operation, the mechanical torque (Τm) supplied to the generator is balanced by the electrical torque (Τe)...
01:24
Bus Impedance Matrix
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2024
Calculating subtransient fault currents for three-phase faults in an N-bus power system involves using the positive-sequence network. When a three-phase short circuit occurs at a specific bus, the analysis uses the superposition method to evaluate two separate circuits. In the first circuit, all machine voltage sources are short-circuited, leaving only the prefault voltage source at the fault location. The positive-sequence bus impedance matrix can be determined by solving the nodal equations,...
04:15
Ye's Swing Technique for Small-incision Lenticule Extraction Surgery
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2025
We introduced an optimized surgical approach for small incision lenticule extraction, termed the Ye's Swing Technique. This technique enables the surgeon to perform lenticule separation and extraction more easily while minimizing the risk of incision-edge tears and lenticule fragmentation. The results of this study proved its safety and efficacy.
06:42
Providing Visual Biofeedback Using Brightness Mode Ultrasound During a Golf Swing
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Cited by 5 •
2022
Brightness mode ultrasound can be used to provide visual biofeedback of the muscles of the lateral abdominal wall during a golf swing. Post-swing visual and verbal instruction can increase the muscle activation and timing of the external and internal obliques.
07:51
Dielectric RheoSANS — Simultaneous Interrogation of Impedance, Rheology and Small Angle Neutron Scattering of Complex Fluids
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Cited by 18 •
2017
Here, we present a procedure for the measurement of simultaneous impedance, rheology and neutron scattering from soft matter materials under shear flow.
FAQs
These two specified quantities establish the electrical reference used throughout the network calculation while preserving the controlled voltage condition at that node. The angle provides the reference for comparing phase relationships, and the magnitude sets the bus-voltage level used in the load-flow solution. Together, they allow other network quantities to be determined consistently.
Rather than assigning it a fully scheduled power injection, the study allows the Swing Bus to supply or absorb the real and reactive power needed after scheduled generation, load, and transmission losses are accounted for. This balancing role lets the network equations represent the system-wide mismatch while maintaining the specified voltage magnitude and angle.
Selection matters because the designated reference node determines how the interconnected network is represented in the calculation. Its representation must support the required balancing action and controlled voltage condition. Accurate selection and modeling therefore improve the usefulness of calculated voltage profiles, line flows, generator requirements, and operating-condition assessments for planning and real-time analysis.
Engineers specify the Swing Bus voltage magnitude and angle before solving the bus admittance equations. The iterative calculation then uses the network representation to determine the remaining electrical quantities while assigning the unbalanced real and reactive power to that bus. The resulting solution can be used to examine network voltages, line flows, and operating conditions.
Once the load-flow calculation is solved, the model supports assessment of voltage profiles, line flows, generator requirements, and overall system operating conditions. The Swing Bus is especially important when interpreting the power balance, because its calculated real and reactive exchange reflects the amount needed to reconcile scheduled generation and load with transmission losses.
It is useful when engineers analyze an interconnected power network through planning, stability assessment, or real-time power-system analysis. The reference and balancing functions help relate network equations to practical questions about voltage behavior, power transfers, required generation, and operating conditions. Its representation therefore supports both study calculations and evaluation of system performance.