Optimal design of passive filters considering the effect of Steinmetz circuit resonance under unbalanced and non‐sinusoidal conditions

Khajouei, Javad; Esmaeili, Saeid; Nosratabadi, Seyyed Mostafa

doi:10.1049/iet-gtd.2019.1755

Cited by 10 publications

(25 citation statements)

References 28 publications

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“…In this section, to illustrate the efficiency of the proposed method, it is applied to the test network and its results are compared with the results of the optimization method proposed in [10].…”

Section: Simulations Resultsmentioning

confidence: 99%

“…The values of the network's parameters before and after filtering are presented in Table 6. From Table 6, it can be calculated that using the method presented in [10] financial losses due to voltage sags ( F sag ) have been reduced by about 41 %. Whereas, the proposed method has decreased it by about 64.5 %.…”

Section: Simulations Resultsmentioning

confidence: 99%

“…The third objective function, which should be minimized, pertains to the power factor and is calculated using (29) [10]:

\begin{equation}{F}_{PF} = 1 - \frac{{3\sum_{h = 1}^{{h}_{\max }} {{V}_h{I}_h\cos {\theta }_h} }}{{3\sqrt {\sum_{h = 1}^{{h}_{\max }} {V_h^2} } \sqrt {\sum_{h = 1}^{{h}_{\max }} {I_h^2} } }}\end{equation}

…”

Section: Proposed Approach For Reducing the Area Of Pollution Of Sens...mentioning

confidence: 99%

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Improving the area of harmonic pollution and vulnerability to voltage sag for compatible and reliable operation of sensitive harmonic loads

Shakeri

Khajouei

Esmaeili

et al. 2022

IET Generation Trans & Dist

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Nowadays, sensitive harmonic loads (SHLs) are being increasingly used in the industrial sector. SHLs generate harmonics and may become disconnected from the network when voltage sags occur at the point of common coupling (PCC). Here, a new approach is proposed to reduce harmonics distortion and establish a more reliable annual operation of SHLs by reducing the area of pollution (AOP) with harmonic and the area of vulnerability (AOV) to voltage sag, respectively. The proposed approach includes an innovative optimization problem for planning passive harmonic filters which is solved by the Non‐dominant Sorting Genetic Algorithm (NSGA‐II) on the basis of historical data of the industrial power grid. By doing so, a solution is obtained in which the costs of passive harmonic filters and financial costs due to grid losses and voltage sags are minimized. In order to assess the new proposed approach, an Iranian large copper mine electrical network equipped with SHLs is used. Results of using the new approach show that total harmonic distortion and grid losses decrease by nearly 80% and 15%, respectively and also, the voltage value at the PCC is improved which can assure the secure operation of SHLs. Moreover, decreased financial losses is obtained since voltage sags are reduced by 65%.

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Section: Simulations Resultsmentioning

confidence: 99%

Section: Simulations Resultsmentioning

confidence: 99%

“…The third objective function, which should be minimized, pertains to the power factor and is calculated using (29) [10]:

\begin{equation}{F}_{PF} = 1 - \frac{{3\sum_{h = 1}^{{h}_{\max }} {{V}_h{I}_h\cos {\theta }_h} }}{{3\sqrt {\sum_{h = 1}^{{h}_{\max }} {V_h^2} } \sqrt {\sum_{h = 1}^{{h}_{\max }} {I_h^2} } }}\end{equation}

…”

Section: Proposed Approach For Reducing the Area Of Pollution Of Sens...mentioning

confidence: 99%

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Improving the area of harmonic pollution and vulnerability to voltage sag for compatible and reliable operation of sensitive harmonic loads

Shakeri

Khajouei

Esmaeili

et al. 2022

IET Generation Trans & Dist

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“…It remains to deduce the compensating current i c from the power S c . According to the power calculation's formula in ( 5 ), the compensating current can be written as [29]:…”

Section: Instantaneous Power Compensation Techniquementioning

confidence: 99%

“…However, these filters present limited effectiveness in the presence of random or low order harmonics [4]. Furthermore, it can induce new utility resonances caused by the interaction of their capacitive banks with the inductors and capacitors in the network [5]. To overcome these limitations, active power filters with various forms (series, shunt, and hybrid) were proposed.…”

Section: Introductionmentioning

confidence: 99%

Performance improvement of the shunt active power filter using a novel adaptive filtering approach

Zoghbi¹,

Berkani²

2021

Turk J Elec Eng & Comp Sci

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This paper introduces an efficient control approach to enhance harmonics mitigation performance of the Shunt Active Power Filter(SAPF). This approach is based on adaptive filters favored by their built-in automatic parameters adaptation capability. The proposed filter, which uses a Variable Leaky Least Mean Square (VLLMS) adaptation, is applied with a modified instantaneous power PQ theory. This enhances its dynamic performance over the use of conventional time-invariant filters, and overcomes its limitations in the presence of non-sinusoidal voltage conditions. The studied SAPF model is simulated in MATLAB/SIMULINK with combinations of non-linear and unbalanced loads. Simulation results indicate a significant improvement in the transient response to less than a quarter of a cycle in its worst case, on top of additional improvements in the steady-state THD value. Moreover, the algorithm's computation efficiency evaluated in an embedded hardware prototype has given a fast execution time of 1.4µs .

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Control of Hybrid Active Power Filter to Reduce Harmonics of 3-Phase Cap-Less Inverter

Lee

Kim

2022

J. Electr. Eng. Technol.

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Optimal design of passive filters considering the effect of Steinmetz circuit resonance under unbalanced and non‐sinusoidal conditions

Cited by 10 publications

References 28 publications

Improving the area of harmonic pollution and vulnerability to voltage sag for compatible and reliable operation of sensitive harmonic loads

Improving the area of harmonic pollution and vulnerability to voltage sag for compatible and reliable operation of sensitive harmonic loads

Performance improvement of the shunt active power filter using a novel adaptive filtering approach

Control of Hybrid Active Power Filter to Reduce Harmonics of 3-Phase Cap-Less Inverter

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