Model Predictive Control Approach for Bridge-Type Fault Current Limiter in VSC-HVDC System
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Voltage source converter–high-voltage DC (VSC-HVDC) system has number of advantages over traditional line commutated converter HVDC. However, VSC-HVDC system is exposed to high current due to faults having great negative effect on converters. In order to limit fault current to relatively low level, this paper proposes model predictive control (MPC)-based bridge-type fault current limiter (BFCL) for VSC-HVDC system. Fault current limiters are placed with the AC grid sides of VSC-HVDC system. Finite control set MPC is developed for the control of VSC-HVDC system along with BFCL. BFCL controller has been developed to insert resistance and reactance during disturbances. Balanced and unbalanced disturbances are applied to evaluate the effectiveness of proposed BFCL controller so as to limit the fault current and augment transient stability. Real-time digital simulator has been used to conduct simulation works. The performance of the proposed MPC-BFCL is compared with that of series dynamic braking resistor (SDBR). Comparative simulation results show that the proposed MPC-BFCL is superior over SDBR in improving dynamic stability of VSC-HVDC system.
KeywordsVoltage source converter Bridge-type fault current limiter Series dynamic braking resistor Fault current Model predictive control
Single line to ground
Double line to ground
Three lines to ground
Bridge-type fault current limiter
Fault current limiter
Fault ride through
Insulated gate bipolar transistor
Line commutated converter
Model predictive control
Point of common coupling
Real-time digital simulator
Series dynamic braking resistor
Superconducting fault current limiter
Voltage source converter
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- 1.Gole, A.: Apparent Increase in Short Circuit Ratio (AISCR) as a measure of the impact of VSC converters on LCC converters in Multi-Infeed HVDC systems with VSC and LCC infeeds. In: 10th IET International Conference on AC and DC Power Transmission. (ACDC 2012), pp. 22–22. Institution of Engineering and Technology (2012). https://doi.org/10.1049/cp.2012.1944.
- 8.Bernal-Perez, S.; Ano-Villalba, S.; Blasco-Gimenez, R.; Rodriguez-D’Derlee, J.: Efficiency and fault ride-through performance of a diode-rectifier- and VSC-inverter-based HVDC link for offshore wind farms. IEEE Trans. Ind. Electron. 60, 2401–2409 (2013). https://doi.org/10.1109/TIE.2012.2222855 CrossRefGoogle Scholar
- 14.de Sousa, W.T.B.; Assis, T.M.L.; Polasek, A.; Monteiro, A.M.; de Andrade, R.: Simulation of a superconducting fault current limiter: a case study in the brazilian power system with possible recovery under load. IEEE Trans. Appl. Supercond. 26, 1–8 (2016). https://doi.org/10.1109/TASC.2015.2510609 Google Scholar
- 17.Yew, P.J.; Selamat, N.S.; Wai, S.K.; Ismail, A.B.; Hamid, N.A.: Modeling of resistive type superconducting fault current limiter in power system. J. Solid State Sci. Technol. Lett. 12, 171–179 (2005)Google Scholar
- 37.Alam, M.S.; Hussein, A.; Abido, M.A.; Al-Hamouz, Z.M.: VSC-HVDC system stability augmentation with bridge type fault current limiter. In: 6th International Conference on Clean Electrical Power, Santa Margherita Ligure, Italy, pp. 531–535 (2017). https://doi.org/10.1109/ICCEP.2017.8004739.