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Using Computer Simulation to Effectively Solve Power Transmission Problems for Non-Sinusoidal Waveforms

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05 set 2025
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Fig. 1.

Arc lamp circuit [16]
Arc lamp circuit [16]

Fig. 1.

Purely resistive circuit with TRIAC [17]
Purely resistive circuit with TRIAC [17]

Fig. 2.

Current waveform in the circuit with TRIAC [17]
Current waveform in the circuit with TRIAC [17]

Fig. 3.

Circuit diagram in MATLAB-Simulink application
Circuit diagram in MATLAB-Simulink application

Fig. 4.

MATLAB-Simulink active power meter diagram
MATLAB-Simulink active power meter diagram

Fig. 5.

Connection diagrams a) supply voltage measurement b) voltage measurement at the receiver
Connection diagrams a) supply voltage measurement b) voltage measurement at the receiver

Fig. 6.

Voltage and current waveform for the TRIAC firing angle of 90° incircuit a)
Voltage and current waveform for the TRIAC firing angle of 90° incircuit a)

Fig. 7.

Voltage and current waveform for the TRIAC firing angle of 90°in circuit b)
Voltage and current waveform for the TRIAC firing angle of 90°in circuit b)

Fig. 8.

Real object test results: a) power and power factor measurement, b) signal waveform on a resistive load
Real object test results: a) power and power factor measurement, b) signal waveform on a resistive load

Real object results table

Circuit type TRIAC firing angle Active power Reactive power Apparent power power factor Voltage Current
W Var VA V mA
a 0 43.1 0 43.1 1 103 420
b 0 43.1 0 43.1 1 103 420
a 90 20.9 21.1 29.7 0.71 102.8 288.9
b 90 19.4 0 19.4 1 67.6 286.3
a 135 4.2 12.9 13.5 0.31 102.8 131.6
b 135 4 0 4 1 30.7 129.9

Simulation results table

Circuit type TRIAC firing angle Active power Reactive power Apparent power power factor Voltage Current
kW kVar kVA V A
a 0 48.4 0 48.4 1 220 220
b 0 48.4 0 48.4 1 220 220
a 90 24.2 15.4 34.2 0.71 220 155.6
b 90 23.8 0 24.2 1 155.6 155.6
a 135 4.4 7.7 14.6 0.3 220 66.3
b 135 4.23 0 4.4 1 66.3 66.3