New extraction method for active, reactive and individual harmonic components from distorted current signal

Dırık, Hasan; Ozdemir, Muammer

doi:10.1049/iet-gtd.2013.0500

Cited by 12 publications

(6 citation statements)

References 21 publications

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“…In this paper, conventional conductance factor‐based reference current extraction method 19,41 is improved to adapt it for unbalanced and distorted supply voltages. According to the conventional method, the amplitude of fundamental active component of load current ( I lpma , I lpmb and I lpmc ) is equal to conductance factor ( G a , G b and G c ) and it is given by,

\begin{matrix} lefttrue \\ I_{italiclpma} = G_{a} (t) = {false\sum}_{j = 1}^{N} (i_{italiclaj} - i_{la (j - 1)}) (u_{italicqaj} \times K_{1} + u_{italicpaj} \times K_{2}); \\ I_{italiclpmb} = G_{b} (t) = {false\sum}_{j = 1}^{N} (i_{italiclbj} - i_{lb (j - 1)}) (u_{italicqbj} \times K_{1} + u_{italicpbj} \times K_{2}); \\ I_{italiclpmc} = G_{c} (t) = {false\sum}_{j = 1}^{N} (i_{italiclcj} - i_{lc (j - 1)}) (u_{italicqcj} \times K_{1} + u_{italicpcj} \times K_{2}) \end{matrix}

where, K 1 and K 2 are constants and they are given by

K_{1} = \frac{\cos ((), ω T_{s} / 2)}{N \sin ((), ω T_{s} / 2)}

K_{2} = \frac{1}{N}

, and N is the ratio of fundamental time period (0.02 second) to the sampling time ( T s ).…”

Section: Proposed Topsis‐based Mpc For Fl‐dstatcommentioning

confidence: 99%

“…Therefore, in this paper, a combination of state observer 36,40 and theory of symmetrical components is used to estimate unit vectors, which have the same nature as ideal unit vectors. After extracting unit vectors, conductance factor‐based method 19,41 is implemented in which, the extracted unit vectors and load currents detected are used to estimate the reference source currents. Finally, the difference between load currents and reference source currents gives us reference DSTATCOM currents.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Model predictive control with technique for order of preference by similarity to ideal solution method for four leg distribution static compensator to improve power quality and reduce switching frequency

Alladi

Ganjikunta

Sreenivasarao

2020

Int Trans Electr Energ Syst

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\begin{matrix} lefttrue \\ I_{italiclpma} = G_{a} (t) = {false\sum}_{j = 1}^{N} (i_{italiclaj} - i_{la (j - 1)}) (u_{italicqaj} \times K_{1} + u_{italicpaj} \times K_{2}); \\ I_{italiclpmb} = G_{b} (t) = {false\sum}_{j = 1}^{N} (i_{italiclbj} - i_{lb (j - 1)}) (u_{italicqbj} \times K_{1} + u_{italicpbj} \times K_{2}); \\ I_{italiclpmc} = G_{c} (t) = {false\sum}_{j = 1}^{N} (i_{italiclcj} - i_{lc (j - 1)}) (u_{italicqcj} \times K_{1} + u_{italicpcj} \times K_{2}) \end{matrix}

where, K 1 and K 2 are constants and they are given by

K_{1} = \frac{\cos ((), ω T_{s} / 2)}{N \sin ((), ω T_{s} / 2)}

K_{2} = \frac{1}{N}

, and N is the ratio of fundamental time period (0.02 second) to the sampling time ( T s ).…”

Section: Proposed Topsis‐based Mpc For Fl‐dstatcommentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Model predictive control with technique for order of preference by similarity to ideal solution method for four leg distribution static compensator to improve power quality and reduce switching frequency

Alladi

Ganjikunta

Sreenivasarao

2020

Int Trans Electr Energ Syst

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“…The currents defined in (3) or in (4) can be used as the reference signal for the source current (5) or for the active filter current (6), respectively:…”

Section: Cmentioning

confidence: 99%

“…While performing compensation according to (5) then the objective of compensation -the current of the source -is controlled actually. Contrarily, if apply (6) then the active filter current looks like to be the objective of the compensation and the source current is not monitored.…”

Section: Cmentioning

confidence: 99%

“…On the other hand the global compensation is aimed to maintain the source current to provide only the active component of the load current/power. It is considered as a "stiff" method because there is no compromise about components to be compensated: all of them should vanish (however, a selective approach can also be found in the literature, [5,9]).…”

Section: Introductionmentioning

confidence: 99%

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Conductance-controlled global-compensation-type shunt active power filter

Szromba¹

2015

Archives of Electrical Engineering

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This paper presents a load equivalent conductance based control method for a shunt active power filter. The principle of energy balance in the circuit, which means between supplying source - active filter - load, is used to obtain the control formula. The natural inertia of the active filter action is exploited, so no PI regulators are needed. The active filter can compensate for non-active current and, additionally, can stabilise the supplying source active power. In a case of generating loads energy harvesting is possible. The presented method is useful as well for voltage-source as current-source inverter based active filters, and for DC system as well as for AC single- or three-phase one.

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Passive Islanding Detection Method Using Static Transfer Switch for Multi‐DGs Microgrid

Somalwar¹,

Kadwane²

2022

DC Microgrids

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New extraction method for active, reactive and individual harmonic components from distorted current signal

Cited by 12 publications

References 21 publications

Model predictive control with technique for order of preference by similarity to ideal solution method for four leg distribution static compensator to improve power quality and reduce switching frequency

Model predictive control with technique for order of preference by similarity to ideal solution method for four leg distribution static compensator to improve power quality and reduce switching frequency

Conductance-controlled global-compensation-type shunt active power filter

Passive Islanding Detection Method Using Static Transfer Switch for Multi‐DGs Microgrid

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