Harmonic Stability in Power Electronic-Based Power Systems: Concept, Modeling, and Analysis

By Xiongfei Wang, Frede Blaabjerg. IEEE Transactions on Smart Grid, 2019

1,058 citations recorded by the source corpus.

The large-scale integration of power electronic-based systems poses new challenges to the stability and power quality of modern power grids. The wide timescale and frequency-coupling dynamics of electronic power converters tend to bring in harmonic instability in the form of resonances or abnormal harmonics in a wide frequency range. This paper provides a systematic analysis of harmonic stability in the future power-electronic-based power systems. The basic concept and phenomena of harmonic stability are elaborated first. It is pointed out that the harmonic stability is a breed of small-signal stability problems, featuring the waveform distortions at the frequencies above and below the fundamental frequency of the system. The linearized models of converters and system analysis methods are then discussed. It reveals that the linearized models of ac–dc converters can be generalized to the harmonic transfer function, which is mathematically derived from linear time-periodic system theory. Lastly, future challenges on the system modeling and analysis of harmonic stability in large-scale power electronic based power grids are summarized.

Subfields: Control and Systems Engineering, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/65f6b5cdb1b6a3dfd6ad5ff509bdc03da796ba34

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Citations in the corpus

Design-Oriented Transient Stability Analysis of PLL-Synchronized Voltage-Source Converters (2018, neutral): “The small-signal modeling and stability analysis of powerelectronic-based power systems have been thoroughly discussed in the recent years [2].”
An Overview of Assessment Methods for Synchronization Stability of Grid-Connected Converters Under Severe Symmetrical Grid Faults (2019, neutral): “W ITH globally increasing electricity demand and a desire to bring down CO 2 emissions, a transition from fossil fuels to sustainable energy is needed [1].”
Revisiting Grid-Forming and Grid-Following Inverters: A Duality Theory (2021, background): “This is known as harmonic or super-synchronous instability [22] and is distinctly different from the interaction instability caused by an inner loop that is too slow as in Fig.”
Grid-Synchronization Stability of Converter-Based Resources—An Overview (2020, background): “the grid under small disturbances [6].”
Symmetrical PLL for SISO Impedance Modeling and Enhanced Stability in Weak Grids (2020, background): “Despite the advantages of power converters in terms of high controllability and improved efficiency, various resonance and stability issues are also introduced by the interactions between wideband control dynamics of converters, passive power filters, as well as the grid impedance [1].”
SoC-Based Droop Coefficients Stability Region Analysis of the Battery for Stand-Alone Supply Systems With Constant Power Loads (2021, methodology): “In order to deal with the mirror frequency coupled feature, the apparent impedance analysis approach and harmonic stability analysis approach were separately proposed [18], [19].”
Definition and Classification of Power System Stability – Revisited & Extended (2021, background): “the electromagnetic transients of the network, which may lead to unstable power system oscillations over a wide frequency range [71].”
Power System Stability With a High Penetration of Inverter-Based Resources (2023, methodology): “The EM stability at the supersynchronous frequency is often called harmonic stability in the literature [35].”