Frequency Adaptive PLL for Polluted Single-Phase Grids

Carugati, Ignacio; Donato, Patricio G.; Maestri, Sebastian; Carrica, Daniel; Benedetti, Mario

doi:10.1109/tpel.2011.2172000

Cited by 95 publications

(52 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This technique has proven to be efficient both in three-phase and in singlephase applications yielding a robust synchronization mechanism, whose effectiveness has been tested under different conditions and scenarios [14,17]. Figure 8(a) illustrates the basic VSPT scheme for single-phase implementation, where the input signal is sampled and the input phase ϕ u ½n is extracted by the phase detector.…”

Section: Variable Sampling Period Techniquementioning

confidence: 99%

Single Bin Sliding Discrete Fourier Transform

Orallo¹,

Carugati²

2017

Fourier Transforms - High-Tech Application and Current Trends

Self Cite

View full text Add to dashboard Cite

Section: Variable Sampling Period Techniquementioning

confidence: 99%

Single Bin Sliding Discrete Fourier Transform

Orallo¹,

Carugati²

2017

Fourier Transforms - High-Tech Application and Current Trends

Self Cite

View full text Add to dashboard Cite

“…The phase information is sent to the voltage references in the V 1 * regulator. Here in this paper, the 1/4 period time delay quadrature signal generator is replaced by the second order generalized integrator (SOGI) method [14], [15]. Details of the SOGI are shown in Fig 5. It is a widely used quadrature signal generation method.…”

Section: Nd Axial Voltage Regulator In the Grid-connected Modementioning

confidence: 99%

PQ Control of Micro Grid Inverters with Axial Voltage Regulators

Chen¹,

Zhao²,

Qu³

et al. 2015

Journal of Power Electronics

View full text Add to dashboard Cite

This paper presents a PQ control strategy for micro grid inverters with axial voltage regulators. The inverter works in the voltage-controlled mode and can help improve the terminal power quality. The inverter has two axial voltage regulators. The 1st regulator involves the output voltage amplitude and output impedance, while the 2nd regulator controls the output frequency. The inverter system is equivalent to a controllable voltage source with a controllable inner output impedance. The basic PQ control for micro grid inverters is easy to accomplish. The output active and reactive powers can be decoupled well by controlling the two axial voltages. The 1st axial voltage regulator controls the reactive power, while the 2nd regulator controls the active power. The paper analyses the axial voltage regulation mechanism, and evaluates the PQ decoupling effect mathematically. The effectiveness of the proposed control strategy is validated by simulation and experimental results.

show abstract

“…The origins of fast polarity detectors can be traced to zero crossing detectors, which at some instances are the same devices. Similar methods with more complex computations are used to synchronize to the grid [6][7][8][9][10]. One example is Phase locked loop or PLL systems.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Voltage Zero-Crossing Detector for AC-Grid Applications

Vorobyov

Vitols

2014

Electrical, Control and Communication Engineering

View full text Add to dashboard Cite

-Renewable energy sources and energy storage devices are becoming more popular. Some of them like small hydropower turbines, wind turbines and diesel generators produce AC voltage with different frequency and voltage than the main grid. For them power electronics converters are necessary. Power electronics converters presented in industry use two or three level energy conversion, although direct AC to AC converters exist, but one of the main problems is the switch commutation when current or voltage is crossing the zero point. Zero crossing sensors are used to solve this problem. They consist of current or voltage measurement unit and zero crossing detector. Different approaches are used for zero crossing: hardware or software. Hardware approach is simple but it has low precision. Software approach has high precision but it is complicated and expensive. In this paper a simple low cost high precision approach is presented. It takes all advantages from both approaches. While tested with two types of microcontrollers the precision of experimental measurement is 25 µs -40 µs.

show abstract

Frequency Adaptive PLL for Polluted Single-Phase Grids

Cited by 95 publications

References 23 publications

Single Bin Sliding Discrete Fourier Transform

Single Bin Sliding Discrete Fourier Transform

PQ Control of Micro Grid Inverters with Axial Voltage Regulators

Low-Cost Voltage Zero-Crossing Detector for AC-Grid Applications

Contact Info

Product

Resources

About