• openAccess   Admittance study of grid-connected VSCs for harmonic oscillatory instabilities 

      Sainz, Luis; Monjo, Lluís; Cheah-Mane, Marc; Liang, Jun; Gomis-Bellmunt, Oriol; Prieto Araujo, Eduardo IET (2019-07)
      Voltage source converters (VSCs) can reduce damping of grid-connected VSC systems at harmonic resonances, leading to system instability. The conductance of the VSC admittance can be shaped selecting appropriate VSC parameter ...
    • openAccess   Effect of wind turbine converter control on wind power plant harmonic response and resonances 

      Sainz, Luis; Monjo, Lluís; Pedra Durán, Joaquín; Cheah-Mane, Marc; Liang, Jun; Gomis-Bellmunt, Oriol The Institution of Engineering and Technology (2017-02)
      Wind turbine harmonic emissions due to power electronics are a well-known power quality concern in wind power plants (WPPs). This problem may be increased by resonances because they amplify harmonic distortion around ...
    • openAccess   Positive-Net-Damping Stability Criterion in Grid-Connected VSC Systems 

      Sainz, Luis; Cheah-Mane, Marc; Monjo, Lluís; Liang, Jun; Gomis-Bellmunt, Oriol Institute of Electrical and Electronics Engineers (IEEE) (2017-05)
      Resonance instabilities in power systems can be assessed with the positive-net-damping stability criterion. This criterion is a review of the complex torque coefficients method but it does not provide the frequency of the ...
    • openAccess   Wind power plant resonances 

      Sainz, Luis; Cheah-Mane, Marc; Monjo, Lluís; Liang, Jun; Gomis-Bellmunt, Oriol North Sea Conference & Journal LTD (2016-12)
      Onshore and offshore wind power plants comprising wind turbines equipped with power converters are increasing in number worldwide. Harmonic emissions in power converters distort currents and voltages, leading ...