Interruptores y disyuntores
Utilice estos bloques para proteger sistemas de potencia electrónicos, mecatrónicos y eléctricos.
Categorías
- Interruptores y disyuntores
Disyuntores e interruptores de puertos múltiples y direcciones múltiples
- Relés
Relés de puerto único y dirección única o doble
Ejemplos destacados
Frequency-Dependent Transmission Line
A custom frequency-dependent transmission line model. The characteristic admittance and propagation function are first derived from the frequency-dependent resistance, reactance, and susceptance. The derived values are fitted using RF Toolbox. The Universal Line Model (ULM) [1] is then implemented in Simscape based on the fitted parameters. The results from the frequency-dependent transmission line model and the classic pi-section transmission line model are compared.
MOSFET Fault in Buck Converter
How a fault may be applied to a MOSFET in a power converter in order to explore the operation of protection circuitry. After the MOSFET becomes faulted, the crowbar circuitry is activated in order to clamp the output voltage across the load and eventually to cause the fuse to blow.
Delta Sigma ADC with Noise
A simple implementation of a sigma delta analog-to-digital converter. An input in the range 0 to Vref (=1V) is integrated until it causes the integrator to reset. The time to reset is proportional to the input value. Demodulation of the pulses is performed by a low-pass filter. The Asynchronous Sample & Hold block behaves like an edge-triggered D-type flip-flop, passing input U to output Y only on a rising edge of the clock. This model can be used to explore and understand the effect of op-amp impairments such as equivalent input noise on converter accuracy. To turn off the noise, open block Vn and select 'Disabled' for the noise mode.
Custom Solenoid with Magnetic Hysteresis
A limited travel solenoid with return spring. Magnetic hysteresis is modeled using the Reluctance with Hysteresis library block.
Three-Phase Synchronous Machine Control
Control and initialize a Synchronous Machine (SM). The test circuit shows the SM operating as a generator. The terminal voltage is controlled using an AVR and the speed is controlled using a governor.
Three-Phase Asynchronous Machine Starting
Model a wye-delta starting circuit for an induction machine. After one second, the Controller subsystem closes the switch labeled S1. Closing this switch connects the supply to the machine. Initially, the machine connects to the supply in a wye configuration because the switch labeled S2 connects each phase of the ~1 port to the corresponding phase of the ~2 port and leaves the ~3 port unconnected. Once the machine is at 80% of the synchronous speed, S2 reconnects the machine in a delta configuration by disconnecting each phase of ~2 and connecting each phase of ~1 to the corresponding phase of ~3. The motor then operates in a delta configuration regardless of rotor speed. The supply sees a higher impedance when the motor is in wye configuration, reducing the starting current and causing less disruption to other connected loads.
