Pub Date : 2020-03-05DOI: 10.1504/ijpec.2020.10027400
M. F. Kangarlu
Sudden variations of voltage can be damaging for voltage-sensitive loads. Dynamic voltage restorer (DVR), which is a power-electronic converter-based device, is an economical solution for voltage variations compensation. In this paper, a high-frequency (HF) transformer-based DVR is designed for household applications. As the household application is considered, the DVR will be low-power and it should be designed to be compact and economic. Therefore, the HF transformer is used in the design in order the system to be more compact and economic. Also, unlike other HF transformer-based DVR structures, no energy storage is used and the number of active converter stages is minimised. The topology selection and compensation capacity are justified in the paper. The simulation results of the designed DVR are presented to verify its performance.
{"title":"Design and simulation of a low-power low-cost high-frequency transformer-based dynamic voltage restorer for household applications","authors":"M. F. Kangarlu","doi":"10.1504/ijpec.2020.10027400","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10027400","url":null,"abstract":"Sudden variations of voltage can be damaging for voltage-sensitive loads. Dynamic voltage restorer (DVR), which is a power-electronic converter-based device, is an economical solution for voltage variations compensation. In this paper, a high-frequency (HF) transformer-based DVR is designed for household applications. As the household application is considered, the DVR will be low-power and it should be designed to be compact and economic. Therefore, the HF transformer is used in the design in order the system to be more compact and economic. Also, unlike other HF transformer-based DVR structures, no energy storage is used and the number of active converter stages is minimised. The topology selection and compensation capacity are justified in the paper. The simulation results of the designed DVR are presented to verify its performance.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42965352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-03-05DOI: 10.1504/ijpec.2020.10027401
Sihem Djebbri, A. Metatla, S. Ladaci
This paper investigates the electrical energy transfers control in a multi-source renewable energy system. The considered system is composed of two sources (photovoltaic and lead-acid battery bank), a specific zero voltage switch full-bridge isolated buck DC/DC power converter and the load. The main contribution of this paper is to propose a modelling approach that details the coupling and uncoupling of DC/DC power converter on a DC bus of multisource renewable energy systems. The proposed model is suitable for control and performance evaluation. This modelisation, results in a system with two cascade loops, the inner loop which allows the control of the current and the outer loop which controls the output voltage using a PI and a PID two controllers respectively. We show by means of numerical simulation tests that the proposed control gives good results in terms of robustness and stability despite the fluctuations of renewable sources and the load variations.
{"title":"Modelling and control design of a multi-source renewable energy system with coupled DC/DC converters power compensation","authors":"Sihem Djebbri, A. Metatla, S. Ladaci","doi":"10.1504/ijpec.2020.10027401","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10027401","url":null,"abstract":"This paper investigates the electrical energy transfers control in a multi-source renewable energy system. The considered system is composed of two sources (photovoltaic and lead-acid battery bank), a specific zero voltage switch full-bridge isolated buck DC/DC power converter and the load. The main contribution of this paper is to propose a modelling approach that details the coupling and uncoupling of DC/DC power converter on a DC bus of multisource renewable energy systems. The proposed model is suitable for control and performance evaluation. This modelisation, results in a system with two cascade loops, the inner loop which allows the control of the current and the outer loop which controls the output voltage using a PI and a PID two controllers respectively. We show by means of numerical simulation tests that the proposed control gives good results in terms of robustness and stability despite the fluctuations of renewable sources and the load variations.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48511567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-18DOI: 10.1504/IJPEC.2020.10023313
K. S. H. Beagam, R. Jayashree, M. A. Khan
This paper proposes a new optimal Q flow (OQF) method for market clearing and settlement of pure reactive power market to overcome the variability of loss price due to change in marginal bus. A lumped linear model is proposed for fast convergence. The power balance equality constraint and voltage inequality constraints are incorporated in the OQF method. In this method a unique reference for delivery/withdrawal point for reactive power called Market Center is proposed to share the total transmission loss equitably between the GENCO and DISCO participants in a transparent manner for pure Q Market using incremental loss factor method. The objective function is to minimize the cost of the reactive power payable to GENCOs with respect to market center. The compensation received by GENCO participants and Locational Marginal Price to be paid by DISCO participants are derived for a single sided auction market.
{"title":"OPTIMAL REACTIVE POWER ALLOCATION AND SETTLEMENT IN DEREGULATED POWER MARKET","authors":"K. S. H. Beagam, R. Jayashree, M. A. Khan","doi":"10.1504/IJPEC.2020.10023313","DOIUrl":"https://doi.org/10.1504/IJPEC.2020.10023313","url":null,"abstract":"This paper proposes a new optimal Q flow (OQF) method for market clearing and settlement of pure reactive power market to overcome the variability of loss price due to change in marginal bus. A lumped linear model is proposed for fast convergence. The power balance equality constraint and voltage inequality constraints are incorporated in the OQF method. In this method a unique reference for delivery/withdrawal point for reactive power called Market Center is proposed to share the total transmission loss equitably between the GENCO and DISCO participants in a transparent manner for pure Q Market using incremental loss factor method. The objective function is to minimize the cost of the reactive power payable to GENCOs with respect to market center. The compensation received by GENCO participants and Locational Marginal Price to be paid by DISCO participants are derived for a single sided auction market.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42004636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-17DOI: 10.1504/ijpec.2020.10026990
R. Behera, A. Thakur
This paper presents a finite-control-set predictive current control (FCS-PCC) scheme for the recently proposed hybrid modular multilevel converter (HMMC)-based grid connected system. The HMMC has several advantages over the conventional modular multilevel converter (MMC) as well as other multilevel topologies. This topology has reduced number of switch counts compared to the conventional MMC, eliminates the problem of circulating current and having higher efficiency. The required number of sub-modules (SM) is half of the conventional MMC, along with an H bridge circuit per phase. This paper analyses the real and reactive power control through FCS-PCC and addresses the AC side grid unbalance by third harmonics injection method. During grid side voltage unbalance, there is a problem of the unequal amount of power exchange between per-phase converter and grid, which needs to be taken care of with an appropriate control method. This study proposed a method to add or subtract an amount of third harmonic component with the reference current signal given to the predictive controller to maintain the grid current at the desired level. The whole concept has been presented along with a simulation study in MATLAB/Simulink environment and the results are presented in support of the described concept.
{"title":"A control scheme for grid-tied hybrid modular multilevel converter under grid voltage unbalance","authors":"R. Behera, A. Thakur","doi":"10.1504/ijpec.2020.10026990","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10026990","url":null,"abstract":"This paper presents a finite-control-set predictive current control (FCS-PCC) scheme for the recently proposed hybrid modular multilevel converter (HMMC)-based grid connected system. The HMMC has several advantages over the conventional modular multilevel converter (MMC) as well as other multilevel topologies. This topology has reduced number of switch counts compared to the conventional MMC, eliminates the problem of circulating current and having higher efficiency. The required number of sub-modules (SM) is half of the conventional MMC, along with an H bridge circuit per phase. This paper analyses the real and reactive power control through FCS-PCC and addresses the AC side grid unbalance by third harmonics injection method. During grid side voltage unbalance, there is a problem of the unequal amount of power exchange between per-phase converter and grid, which needs to be taken care of with an appropriate control method. This study proposed a method to add or subtract an amount of third harmonic component with the reference current signal given to the predictive controller to maintain the grid current at the desired level. The whole concept has been presented along with a simulation study in MATLAB/Simulink environment and the results are presented in support of the described concept.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47228909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-17DOI: 10.1504/ijpec.2020.10026992
S. Arya, Nunsavath Sharath Kumar, Ashutosh K. Giri, A. Qureshi
Due to increased burden on the grid, voltage and frequency control becomes very difficult. Moreover, nonlinear domestic appliances are also contributing towards power quality problems related with voltage and current. To share the burden of grid and for increasing the power quality at the end users authors have proposed new topology comprising fuel cell along with voltage source converter (VSC) used as distribution static compensator (DSTATCOM) connected in shunt at point of common coupling of load and source. To control the VSC, forward backward least mean square (FBLMS) algorithm is used. In this algorithm, error between desired and estimated signal is calculated in both forward and backward directions. The average error is calculated based on forward path error. Further, the active weight components and the reactive weight components are used to calculate reference source current for gate pulse generation. The complete system is simulated and validated in the laboratory environment with one prototype, the results are satisfactory.
{"title":"Fuel cell integration with grid using voltage source converter and its control","authors":"S. Arya, Nunsavath Sharath Kumar, Ashutosh K. Giri, A. Qureshi","doi":"10.1504/ijpec.2020.10026992","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10026992","url":null,"abstract":"Due to increased burden on the grid, voltage and frequency control becomes very difficult. Moreover, nonlinear domestic appliances are also contributing towards power quality problems related with voltage and current. To share the burden of grid and for increasing the power quality at the end users authors have proposed new topology comprising fuel cell along with voltage source converter (VSC) used as distribution static compensator (DSTATCOM) connected in shunt at point of common coupling of load and source. To control the VSC, forward backward least mean square (FBLMS) algorithm is used. In this algorithm, error between desired and estimated signal is calculated in both forward and backward directions. The average error is calculated based on forward path error. Further, the active weight components and the reactive weight components are used to calculate reference source current for gate pulse generation. The complete system is simulated and validated in the laboratory environment with one prototype, the results are satisfactory.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42749980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-17DOI: 10.1504/ijpec.2020.10026991
Hakchol Jong, Songchol Hyon, Chonung Kim, Sunghyok Kim
High-efficiency electric drive systems claim not only optimally designed electric machines but also efficiency-oriented control strategies. Taking machines and drives into synergetic consideration, this paper proposes a fresh particle crowd optimisation (FPCO) of efficiency-oriented control algorithm named maximum outer torque per ampere (MOPA) control and maximum efficiency per ampere (MEPA) control, aiming to maximise the efficiency of interior permanent magnet synchronous machines during operation. Difference from conventional id = 0 or maximum torque per ampere control, MOPA and MEPA fully consider the cross effect core loss, iron loss, supplementary loss and mechanical loss, from which the full-order loss model of interior permanent magnet synchronous motor (IPMSM) is built. In order to identify the accuracy of the efficiency-oriented control algorithm, the efficiency-oriented controlled system on based FPCO using non-singular terminal sliding (NTS) controller is built, on the base of this, the stabilisation of the current trajectory and the voltage vector from simulation and testing are inspected. After that, the higher effectiveness of MOPA and MEPA is proved through the operation experiment of IPMSM of which capacity is 82 kW.
{"title":"Fresh particle crowd optimisation of efficiency-oriented control in interior permanent magnet synchronous motor during operation","authors":"Hakchol Jong, Songchol Hyon, Chonung Kim, Sunghyok Kim","doi":"10.1504/ijpec.2020.10026991","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10026991","url":null,"abstract":"High-efficiency electric drive systems claim not only optimally designed electric machines but also efficiency-oriented control strategies. Taking machines and drives into synergetic consideration, this paper proposes a fresh particle crowd optimisation (FPCO) of efficiency-oriented control algorithm named maximum outer torque per ampere (MOPA) control and maximum efficiency per ampere (MEPA) control, aiming to maximise the efficiency of interior permanent magnet synchronous machines during operation. Difference from conventional id = 0 or maximum torque per ampere control, MOPA and MEPA fully consider the cross effect core loss, iron loss, supplementary loss and mechanical loss, from which the full-order loss model of interior permanent magnet synchronous motor (IPMSM) is built. In order to identify the accuracy of the efficiency-oriented control algorithm, the efficiency-oriented controlled system on based FPCO using non-singular terminal sliding (NTS) controller is built, on the base of this, the stabilisation of the current trajectory and the voltage vector from simulation and testing are inspected. After that, the higher effectiveness of MOPA and MEPA is proved through the operation experiment of IPMSM of which capacity is 82 kW.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45023543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-17DOI: 10.1504/ijpec.2020.10026993
P. Sahu, R. Prusty
The article focuses on how a conventional automatic generation control (AGC) will be economically efficient. AGC aims to keep system frequency and net scheduled interchanges between different control areas (tie-line power) within predetermined values. To generate power economically it is required to combine conventional AGC with economic load dispatch (ELD) which combined known as economic AGC (eco-AGC). In eco-AGC concern the deviation in frequency is brought back to zero but scheduled interchanges never comes to zero rather settled to a new value as power always flows from lower incremental fuel cost generating station to higher incremental cost generating station in response to load demand. To perform eco-AGC, this research article proposes a novel salp swarm optimization (SSO)-based fractional order fuzzy controller for reducing errors and to maintain system stable with economic efficient. To justify robustness of proposed controller different sensitive analysis has been done with wide variation of system parameters.
{"title":"Frequency and tie-line power awareness in eco-AGC of multi-area power system with SSO-based fractional order controller","authors":"P. Sahu, R. Prusty","doi":"10.1504/ijpec.2020.10026993","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10026993","url":null,"abstract":"The article focuses on how a conventional automatic generation control (AGC) will be economically efficient. AGC aims to keep system frequency and net scheduled interchanges between different control areas (tie-line power) within predetermined values. To generate power economically it is required to combine conventional AGC with economic load dispatch (ELD) which combined known as economic AGC (eco-AGC). In eco-AGC concern the deviation in frequency is brought back to zero but scheduled interchanges never comes to zero rather settled to a new value as power always flows from lower incremental fuel cost generating station to higher incremental cost generating station in response to load demand. To perform eco-AGC, this research article proposes a novel salp swarm optimization (SSO)-based fractional order fuzzy controller for reducing errors and to maintain system stable with economic efficient. To justify robustness of proposed controller different sensitive analysis has been done with wide variation of system parameters.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44075398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-03DOI: 10.1504/ijpec.2020.10026493
R. Pilla, Alice Mary Karlapudy, S. Munagala
Permanent magnet synchronous motor (PMSM) drives are becoming more popular and replaces DC and Induction motor drives in industrial applications like rolling mills, home appliances, transport systems, robotics and factory automation, hybrid eclectic vehicles etc. Various control schemes are suggested in the literature for variable speed AC drives fed from static power sources. Among them field oriented control employing vector control strategies has become quite popular in recent years. A disadvantage of the scheme when applied to PMSM drives is that the motor always operates at a lagging power factor. In this paper, a generalised design strategy for speed control loop of an inverter fed PMSM drive is suggested. In this design for different combinations of currents, same torque can be generated, which leads to more general control scheme. The closed loop control system for PMSM drive is simulated using MATLAB. The performance figures of various cases such as internal p.f angle control, torque angle control and field oriented control can be obtained and verified through simulation for different power factors of the motor ranging from lagging to leading through unity.
{"title":"Design strategies for speed control of an inverter fed permanent magnet synchronous motor drive","authors":"R. Pilla, Alice Mary Karlapudy, S. Munagala","doi":"10.1504/ijpec.2020.10026493","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10026493","url":null,"abstract":"Permanent magnet synchronous motor (PMSM) drives are becoming more popular and replaces DC and Induction motor drives in industrial applications like rolling mills, home appliances, transport systems, robotics and factory automation, hybrid eclectic vehicles etc. Various control schemes are suggested in the literature for variable speed AC drives fed from static power sources. Among them field oriented control employing vector control strategies has become quite popular in recent years. A disadvantage of the scheme when applied to PMSM drives is that the motor always operates at a lagging power factor. In this paper, a generalised design strategy for speed control loop of an inverter fed PMSM drive is suggested. In this design for different combinations of currents, same torque can be generated, which leads to more general control scheme. The closed loop control system for PMSM drive is simulated using MATLAB. The performance figures of various cases such as internal p.f angle control, torque angle control and field oriented control can be obtained and verified through simulation for different power factors of the motor ranging from lagging to leading through unity.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45336889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-30DOI: 10.1504/ijpec.2020.10026490
Y. Errami, A. Obbadi, S. Sahnoun, M. Ouassaid, M. Maaroufi
The enlarged penetration of wind power into electrical network brings challenges to control strategies of variable speed wind energy conversion systems (VS-WECS). In this study, a nonlinear control scheme for wind farm system (WFS) is proposed. The control technique is realised using variable structure sliding mode control (VSSMC). The generator side rectifiers control is used to keep the generator rotor velocities at an optimal value obtained from the maximum power point tracking (MPPT) algorithm to maximise the total extracted power. The grid-side inverter injects the generated power into the AC network, regulates DC-link voltage and it is used to achieve unity power factor. The simulation results demonstrate the effectiveness of the proposed VSSMC strategy in different scenarios, and their advantages are shown in comparison with a conventional proportional integral (PI) control approach under grid fault conditions and the possible presence of uncertainties.
{"title":"Variable structure power control under different operating conditions of PM synchronous generator wind farm connected to electrical network","authors":"Y. Errami, A. Obbadi, S. Sahnoun, M. Ouassaid, M. Maaroufi","doi":"10.1504/ijpec.2020.10026490","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10026490","url":null,"abstract":"The enlarged penetration of wind power into electrical network brings challenges to control strategies of variable speed wind energy conversion systems (VS-WECS). In this study, a nonlinear control scheme for wind farm system (WFS) is proposed. The control technique is realised using variable structure sliding mode control (VSSMC). The generator side rectifiers control is used to keep the generator rotor velocities at an optimal value obtained from the maximum power point tracking (MPPT) algorithm to maximise the total extracted power. The grid-side inverter injects the generated power into the AC network, regulates DC-link voltage and it is used to achieve unity power factor. The simulation results demonstrate the effectiveness of the proposed VSSMC strategy in different scenarios, and their advantages are shown in comparison with a conventional proportional integral (PI) control approach under grid fault conditions and the possible presence of uncertainties.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42349458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-01-30DOI: 10.1504/ijpec.2020.10026492
R. Bisoi, T. Chakravorti, N. Nayak
This paper focuses on discrete Hilbert Huang transform (HHT) and improved fuzzy decision tree (IFDT)-based detection and classification of power quality (PQ) disturbances as a new contribution to the literature. A distributed generation (DG)-based microgrid has been modelled with wind and solar. Different PQ disturbances have been simulated with various wind speed and PV penetration. The PQ signals are passed through empirical mode decomposition (EMD) to obtain the intrinsic mode functions (IMFs). These IMFs are enforced to the Hilbert transform (HT) to extract the instantaneous attributes. These attributes of Hilbert transform (HT) are used for features extraction. Based on these extracted features improved fuzzy rules are formed for classification of the PQ disturbances. Synthetically PQ disturbances are simulated to check the performance of the proposed method. All these signal samples are processed through the proposed algorithm. The proposed method has been found to be capable of accurate detection and classification of PQ disturbances than many other techniques in the literature.
{"title":"A hybrid Hilbert Huang transform and improved fuzzy decision tree classifier for assessment of power quality disturbances in a grid connected distributed generation system","authors":"R. Bisoi, T. Chakravorti, N. Nayak","doi":"10.1504/ijpec.2020.10026492","DOIUrl":"https://doi.org/10.1504/ijpec.2020.10026492","url":null,"abstract":"This paper focuses on discrete Hilbert Huang transform (HHT) and improved fuzzy decision tree (IFDT)-based detection and classification of power quality (PQ) disturbances as a new contribution to the literature. A distributed generation (DG)-based microgrid has been modelled with wind and solar. Different PQ disturbances have been simulated with various wind speed and PV penetration. The PQ signals are passed through empirical mode decomposition (EMD) to obtain the intrinsic mode functions (IMFs). These IMFs are enforced to the Hilbert transform (HT) to extract the instantaneous attributes. These attributes of Hilbert transform (HT) are used for features extraction. Based on these extracted features improved fuzzy rules are formed for classification of the PQ disturbances. Synthetically PQ disturbances are simulated to check the performance of the proposed method. All these signal samples are processed through the proposed algorithm. The proposed method has been found to be capable of accurate detection and classification of PQ disturbances than many other techniques in the literature.","PeriodicalId":38524,"journal":{"name":"International Journal of Power and Energy Conversion","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42325223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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