New Parseval’s inactive-power factor of a two-terminal network

Siwczyński, M.; Jaraczewski, Marcin

doi:10.1016/j.ijepes.2018.06.056

Cited by 5 publications

(5 citation statements)

References 3 publications

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“…The branch diagram is shown in Figure 4. Averaging the square waveform within sampling period τ results in value of the nth sample of the voltage e(t) [1,16].…”

Section: Universal Voltage-controlled Sourcementioning

confidence: 99%

“…A diagram of a two-terminal network implementing a given linear operator, impedance Z* or admittance Y*, with the use of a voltage-source e(t), controlled by current i(t) or voltage u(t), is shown in Figure 5. Averaging the square waveform within sampling period τ results in value of the n-th sample of the voltage e(t) [1,16].…”

Section: Implementation Of An Immittance Operatormentioning

confidence: 99%

“…In the case of such a matching, the power drawn from the power line that is supplied with a sinusoidal AC voltage will be converted into energy stored in DC voltage, which in turn should be converted back into a sinusoidal AC signal [1].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

An Actively Controlled Two-Terminal Network Implementing a Given Linear Nonconvolution-Type Immittance Operator

2022

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This paper is a study on the synthesis of digital filters used to control active or self-excited systems. The active two-terminal branch implements a nonconvolution-type immittance operator, which generates a current waveform depending on the given impedance or admittance operator. In this article, for the first time, the method of how to construct immittance operators for linear time-variant (nonconvolution-type) two-terminal circuits, over discrete time, is presented. These operators are useful when calculating periodic steady-state signals of a parametric circuit. The formula for the duty cycle is derived based on the current generated by this branch, assuming a known branch voltage or vice versa. This formula allows us to make a direct calculation of the duty-cycle in an analytical manner and does not refer to any auxiliary signals, e.g., sawtooth signals, or to any control systems, e.g., PI controller. The determined duty-cycles allow us to select the appropriate switching frequency and voltage value for the switched voltage source. With this method, it is also possible to assess the parameters of the current signal that would be generated in the actual active filter branch due to the calculated PWM voltage. The presented method can be an alternative to commonly used PI controllers in feedback for controlling active power filters/inverters.

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“…The branch diagram is shown in Figure 4. Averaging the square waveform within sampling period τ results in value of the nth sample of the voltage e(t) [1,16].…”

Section: Universal Voltage-controlled Sourcementioning

confidence: 99%

Section: Implementation Of An Immittance Operatormentioning

confidence: 99%

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An Actively Controlled Two-Terminal Network Implementing a Given Linear Nonconvolution-Type Immittance Operator

2022

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“…Harmonics represents a major PQ issue in power systems especially MG. Harmonics have significant negative impacts on the electrical power system. The negative impacts are the increased transformer losses (copper, iron, and stray losses), heating of neutral lines, circuit breakers and panels heating, effect on electromagnetic equipment, problems concerning capacitors used for power factor correction and lifetime reduction for all equipment under harmonics effect [2,[6][7][8]. In MG, due to the extensive use of power; the electronic interface between highly dynamic large loads (such as pulsating or propulsion loads) and sources leads to severe PQ issues in MGs [9].…”

Section: Motivation and Incitementmentioning

confidence: 99%

Cascaded controller for a standalone microgrid‐connected inverter based on triple‐action controller and particle swarm optimisation

Salim

Aboraya

Arafa

2020

IET Generation, Transmission & Distribution

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“…matched to the load can be considered. The generic impulse response formula of Y C = 1 Z C [7][8][9] is:…”

Section: Examplementioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Siwczyński

Jaraczewski

2020

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Commonly known DC-AC switching converters are commonly used in compensator branches. One example of this is a static synchronous compensator (STATCOM). It consists of a voltage source converter (VSC) and acts as an inverter with a capacitor as a DC power source. These compensators use the PWM switching scheme or space vector modulation (SVM) method. Both methods require the desired signal to be generated. In some cases, as during the synthesis of self-excited systems or active energy-compensators, it is necessary to perform the desired branch immittance, e.g. negative capacitance, inductance, resistance or irrational impedance. In such cases, it is necessary to control the universal branch on the basis of a formula. This article presents the implementation method for the convolutional type impedance operators.

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New Parseval’s inactive-power factor of a two-terminal network

Cited by 5 publications

References 3 publications

An Actively Controlled Two-Terminal Network Implementing a Given Linear Nonconvolution-Type Immittance Operator

An Actively Controlled Two-Terminal Network Implementing a Given Linear Nonconvolution-Type Immittance Operator

Cascaded controller for a standalone microgrid‐connected inverter based on triple‐action controller and particle swarm optimisation

Bulletin of the Polish Academy of Sciences: Technical Sciences

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