Control and Measurements
Generate pulses, transform, filter, analyze, and measure signals.
Blocks
Measurement
Voltage Measurement | Measure voltage in circuit |
Current Measurement | Measure current in circuit |
Three-Phase V-I Measurement | Measure three-phase currents and voltages in circuit |
Multimeter | Measure voltages and currents specified in dialog boxes of Simscape Electrical Specialized Power Systems blocks |
Impedance Measurement | Measure impedance of circuit as function of frequency |
Analysis
Digital Flickermeter | Implement digital flickermeter as described in IEC 61000-4-15 standard |
Fourier | Perform Fourier analysis of signal |
Frequency (Phasor) | Measure phasor signal frequency |
Fundamental (PLL-Driven) | Compute fundamental value of signal |
Mean | Compute mean value of signal |
Mean (Phasor) | Compute mean value of input phasor over a running window of one cycle of specified frequency |
Mean (Variable Frequency) | Compute mean value of signal |
PMU (PLL-Based, Positive-Sequence) | Implements a phasor measurement unit using a phase-locked loop |
Positive-Sequence (PLL-Driven) | Compute positive-sequence component of three-phase signal at fundamental frequency |
Power | Compute active and reactive powers of voltage-current pair at fundamental frequency |
Power (3ph, Instantaneous) | Compute three-phase instantaneous active and reactive powers |
Power (3ph, Phasor) | Compute three-phase active and reactive powers using three-phase voltage and current phasors |
Power (PLL-Driven, Positive-Sequence) | Compute positive-sequence active and reactive powers |
Power (Phasor) | Compute active and reactive powers using voltage and current phasors |
Power (Positive-Sequence) | Compute positive-sequence active and reactive powers |
Power (dq0, Instantaneous) | Compute three-phase instantaneous active and reactive powers |
RMS | Compute true root mean square (RMS) value of signal |
Sequence Analyzer | Compute positive-, negative-, and zero-sequence components of three-phase signal |
Sequence Analyzer (Phasor) | Compute sequence components (positive, negative, and zero) of three-phase phasor signal |
THD | Compute total harmonic distortion (THD) of signal |
Pulse and Signal Generators
Overmodulation | Add third harmonic or triplen harmonic zero-sequence signal to three-phase signal |
Pulse Generator (Thyristor) | Generate pulses for twelve-pulse and six-pulse thyristor converters |
PWM Generator (2-Level) | Generate pulses for PWM-controlled 2-level converter |
PWM Generator (3-Level) | Generate pulses for PWM-controlled three-level converter |
PWM Generator (DC-DC) | Generate pulse for PWM-controlled DC-DC converter |
PWM Generator (Interpolation) | Carrier-based unipolar PWM generation with interpolation |
PWM Generator (Multilevel) | Generate pulses for PWM-controlled modular multilevel converter |
PWM Generator (Pulse Averaging) | Carrier-based PWM generator with pulse averaging |
Sawtooth Generator | Generate sawtooth waveform at regular intervals |
Stair Generator | Generate signal changing at specified transition times |
SVPWM Generator (2-Level) | Generate pulses for SVPWM-controlled two-level converter |
SVPWM Generator (3-Level) | Generate pulses for SVPWM-controlled three-level converter |
Three-Phase Programmable Generator | Generate three-phase signal with programmable time variation of amplitude, phase, frequency, and harmonics |
Three-Phase Sine Generator | Generate three-phase balanced signal, amplitude, phase, and frequency controlled by block inputs |
Triangle Generator | Generate symmetrical triangle waveform at regular intervals |
Transformations
Alpha-Beta-Zero to dq0, dq0 to Alpha-Beta-Zero | Perform transformation from αβ0 stationary reference frame to dq0 rotating reference frame or the inverse |
abc to Alpha-Beta-Zero, Alpha-Beta-Zero to abc | Perform transformation from three-phase (abc) signal to αβ0 stationary reference frame or the inverse |
abc to dq0, dq0 to abc | Perform transformation from three-phase (abc) signal to dq0 rotating reference frame or the inverse |
Filters
First-Order Filter | Implement first-order filter |
Lead-Lag Filter | Implement first-order lead-lag filter |
Second-Order Filter | Implement second-order filter |
Second-Order Filter (Variable-Tuned) | Implement second-order variable-tuned filter |
Phase Lock Loop
Logic
Bistable | Implement prioritized S-R flip-flop (bistable multivibrator) |
Edge Detector | Detect change in logical signal state |
Monostable | Implement monostable flip-flop (one-shot multivibrator) |
On/Off Delay | Implement switch-on or switch-off delay |
Additional Components
Sample and Hold | Sample first input and hold its value based on value of second input |
Discrete Shift Register | Implement serial-in, parallel-out shift register |
Discrete Variable Time Delay | Delay signal by variable time value |
Functions
power_fftscope | Fourier analysis of simulation data signals |
power_flicker | Perform statistical analysis of instantaneous flicker level signal |
power_zmeter | Compute impedance versus frequency of Impedance Measurement blocks of model |
Topics
- Park Transformation
Express direct axis, quadratic axis, and zero-sequence components as phase quantities using Park transforms.
- Simulate Variable Speed Motor Control
Model and discretize simple motors with specialized blocks. Use the FFT Analysis tool of the Powergui block to perform harmonic analysis.
Featured Examples
Three-Phase Programmable Source, V-I Measurement and Sequence Analyzer
The use of the 3-Phase Programmable Voltage Source, 3-Phase V-I Measurement, and Sequence Analyzer blocks.
Three-Phase Programmable Source, PLL, Voltage and Power Measurement
The use of the 3-Phase Programmable Voltage Source, PLL and Variable-Frequency Positive-Sequence Voltage and Power Measurement blocks.
Performance of Frequency Measurement (Phasor)
The use of two Frequency (Phasor) blocks to measure the frequency variation in a network following a line outage.
Kundur's Two-Area System with PMU
The use of the PMU (PLL-Based, Positive-Sequence) block within the Kundur's Two-Area System.
PMU (PLL-based, Positive-Sequence) Benchmark
The use of a phasor measurement unit - PMU (PLL-based, Positive-Sequence) in a benchmark circuit.
Flickermeter Statistical Analysis Module
A method to compute short-term flicker severity of a phase-to-ground voltage taken from one feeder of a given remote community.
Flickermeter on a Distribution STATCOM
A flickermeter model designed according to functional specifications of the international standard IEC 6100-4-15 [1].
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