Zero Cross Detection Using Phase Locked Loop

Stastny, Ladislav; Mego, Roman; Franek, Lesek; Bradáč, Zdeněk

doi:10.1016/j.ifacol.2016.12.050

Cited by 8 publications

(5 citation statements)

References 6 publications

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“…For synchronization module, a zero cross detector circuit is designed using LM741 Op-Amp which converts sinusoidal signal to square waveform [9]. Then a high pass filter is connected which generates pulses on rising and falling edge of square wave.…”

Section: Methodsmentioning

confidence: 99%

Smart Priority Based Power Load Switching Using Programable Logic Controller Automation

2022

IRJMETS

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There is a need for reliability in the system to be preserved in power management systems. It is always important to balance power consumption and output, as any major imbalance may cause instability or extreme voltage fluctuations within the power system. This results in the whole power system failing. The objective of this research is to provide uninterrupted power through generators to the top priority load by automatically disconnecting the low priority load in the event of power failure or peak load. Also, it intelligently disconnects the surplus generators from the bus bar in the event of less demand. This can be done using power measurement devices and magnetic contactors on both the generation and the load side. Power measurement devices transmit the power generated and power consumed data to the PLC, whereby the PLC sends the signal to magnetic contactors to effectively link or detach the load or generator.

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Section: Methodsmentioning

confidence: 99%

Smart Priority Based Power Load Switching Using Programable Logic Controller Automation

2022

IRJMETS

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“…Figure 2 shows a block-diagram of the small-signal model presented in (11). From the last figure, the closedloop transfer function can be given as:…”

Section: Sin(𝑎) Cos(𝑏) =mentioning

confidence: 99%

A synchronization technique for single-phase grid applications

Smadi

Albatran

Ababneh

2022

IJPEDS

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The utility grid disturbances like dc offset and harmonic components can severely affect the estimated variables from the phase-locked loop (PLL), resulting in poor performance of the system relying on it. Therefore, there is an emerging need for well-designed PLL algorithms ensuring robust response against different operating conditions. This paper proposes a simple single-phase PLL algorithm with inherent dc offset and specific harmonic orders rejection capability. Utilizing adaptive time-delay fictitious signal generation. A full mathematical model of the proposed PLL has been provided. The proposed PLL is compared with other filter-based single-phase PLLs, to validate its simplicity and excellent performance.

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“…Simulation schema is introduced to examine and analyze PLL behavior under different grid interferences. Two potential issues multiple zerocrossing in the zero cross-area may cause instability of the loop and the presence of harmonics may cause shifts of the zero-cross event [18]. A zero-crossing detector circuit is an important application of an Op-Amp comparator circuit.…”

Section: Zero-rrossing Detectormentioning

confidence: 99%

Proteus ISIS simulation for power factor calculation using zero crossing detector

Jumrianto

Royan

2021

J. Mechatron. Electr. Power Veh. Technol.

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One of the important parameters for electrical systems is the power factor (cos phi), which is the ratio of the real power (watt) to the apparent power (volt ampere). The best cos phi value is between 0.85 to 1. A resistive load causes the voltage and current in equal phase angle, while the inductive load causes the current to lag behind the voltage. On the other hand, the capacitive load causes the current to precede the voltage (leading). A simulation to determine the power factor of an electrical network can be done with Proteus ISIS software by creating a phase detection circuit. Automatic control can be done by a microcontroller. This simulation circuit can be used as power factor correction, a trigger angle on SCR trigger for DC motor speed control, for rocket launch angle adjuster, to measure the angle of inclination, and other uses relating to angle adjustments.

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Zero Cross Detection Using Phase Locked Loop

Cited by 8 publications

References 6 publications

Smart Priority Based Power Load Switching Using Programable Logic Controller Automation

Smart Priority Based Power Load Switching Using Programable Logic Controller Automation

A synchronization technique for single-phase grid applications

Proteus ISIS simulation for power factor calculation using zero crossing detector

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