Simulation of Some Power Electronics Case Studies in Matlab Simpowersystem Blockset by Dr. Hidaia Mahmood Alassouli

Author:Dr. Hidaia Mahmood Alassouli [Alassouli, Dr. Hidaia Mahmood]
Language: eng
Format: azw3, pdf
Tags: Pulse Width Modulation, Static VAR compensators, UPFC, Simpowersystem, AC Motor Drives, Thyristor converters., Matlab, Chopper, Series Converter, DC Motor Drives, Hidaia Alassouli, Power System Dynamic Stability, FACTS Devices, HVDC converters
Published: 2017-06-06T00:00:00+00:00

Fig. 9. Waveforms illustrating STATCOM dynamic response to system voltage steps

4. CONTROL OF LOAD FLOW USING UPFC

A UPFC that used to control the power flow in a 500 kV /230 kV transmission system is shown in Fig. 10. The system, connected in a loop configuration, consists essentially of five buses (B1 to B5) interconnected through transmission lines (L1, L2, L3) and two 500 kV/230 kV transformer banks Tr1 and Tr2. Two power plants located on the 230-kV system generate a total of 1500 MW which is transmitted to a 500-kV 15000-MVA equivalent and to a 200-MW load connected at bus B3. The plant models include a speed regulator, an excitation system as well as a power system stabilizer (PSS). In normal operation, most of the 1200-MW generation capacity of power plant #2 is exported to the 500-kV equivalent through three 400-MVA transformers connected between buses B4 and B5. For this case study we are considering a contingency case where only two transformers out of three are available (Tr2= 2*400 MVA = 800 MVA).

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