Pub Date : 2015-10-29DOI: 10.1109/ECCE.2015.7309664
Jonghoon Kim, C. Chun, B. Cho
This research elaborately investigates an innovative work for high-accuracy SOC estimation using an adjusted experimental discharging/charging voltage (EDCV) signal of series/parallel-cell configured battery pack through combination between adaptive sliding-mode observer (SMO) and discrete wavelet transform (DWT). The steps for robust SOC estimation in the proposed approach as follows. First, after discharging/charging of the battery pack, an obtained EDCV signal is decomposed into different frequency sub-bands (low-and high-frequency components, An and Dn) using the DWT-based multi-resolution analysis (MRA) method. Second, a low frequency component An is specifically served as a terminal voltage and sent to the equivalent circuit model (ECM)-based SMO for obtaining SOC information. The ECM of the battery pack previously constructed by discrimination process that selects unit cells with similar electrochemical characteristics is well considered. Finally, the SOC performance is compared with that of Ampere-hour counting for validation of this proposed work. Experimental results clearly show that this approach sufficiently enables us to provide a reliable SOC estimation whole discharging/charging period using only fundamental ECM without additional consideration such as internal state variation and noise model for compensating the ECM errors. This approach used two experimental packs of 6S1P and 8S2P that respectively connected in series and in series/parallel using 2.2Ah unit cells discriminated in advance.
{"title":"Combination between adaptive SMO and DWT-based an adjusted EDCV signal for robust SOC estimation in battery pack applications","authors":"Jonghoon Kim, C. Chun, B. Cho","doi":"10.1109/ECCE.2015.7309664","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309664","url":null,"abstract":"This research elaborately investigates an innovative work for high-accuracy SOC estimation using an adjusted experimental discharging/charging voltage (EDCV) signal of series/parallel-cell configured battery pack through combination between adaptive sliding-mode observer (SMO) and discrete wavelet transform (DWT). The steps for robust SOC estimation in the proposed approach as follows. First, after discharging/charging of the battery pack, an obtained EDCV signal is decomposed into different frequency sub-bands (low-and high-frequency components, An and Dn) using the DWT-based multi-resolution analysis (MRA) method. Second, a low frequency component An is specifically served as a terminal voltage and sent to the equivalent circuit model (ECM)-based SMO for obtaining SOC information. The ECM of the battery pack previously constructed by discrimination process that selects unit cells with similar electrochemical characteristics is well considered. Finally, the SOC performance is compared with that of Ampere-hour counting for validation of this proposed work. Experimental results clearly show that this approach sufficiently enables us to provide a reliable SOC estimation whole discharging/charging period using only fundamental ECM without additional consideration such as internal state variation and noise model for compensating the ECM errors. This approach used two experimental packs of 6S1P and 8S2P that respectively connected in series and in series/parallel using 2.2Ah unit cells discriminated in advance.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"71 1","pages":"22-27"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76061688","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309817
H. Jafarian, I. Mazhari, B. Parkhideh, Saurabh Trivedi, D. Somayajula, R. Cox, S. Bhowmik
A control scheme for a distributed Inverter Molecule™ architecture is analyzed and implemented in this paper. An Inverter Molecule is a building block for a novel distributed inverter architecture suitable for PV/Battery applications which exceeds the performance metrics obtained by Central/String- inverters with or without DC/DC optimizers or by Micro-Inverters. The proposed transformerless architecture utilizes low-voltage semiconductor devices with much higher yields than their high-voltage counterparts. A group of Inverter Molecules operate autonomously and cooperatively to maintain the grid interconnection requirements while providing maximum power control on each molecule's PV panel. This paper overviews the state-of the-art control methods implemented mostly on cascaded H-bridge derived topologies and further establishes a distributed control scheme for Inverter Molecule architecture that does not need any high bandwidth communications except a heartbeat signal at line frequency. Experimental results are presented for a lab-scaled prototype.
{"title":"Design and implementation of distributed control architecture of an AC-stacked PV inverter","authors":"H. Jafarian, I. Mazhari, B. Parkhideh, Saurabh Trivedi, D. Somayajula, R. Cox, S. Bhowmik","doi":"10.1109/ECCE.2015.7309817","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309817","url":null,"abstract":"A control scheme for a distributed Inverter Molecule™ architecture is analyzed and implemented in this paper. An Inverter Molecule is a building block for a novel distributed inverter architecture suitable for PV/Battery applications which exceeds the performance metrics obtained by Central/String- inverters with or without DC/DC optimizers or by Micro-Inverters. The proposed transformerless architecture utilizes low-voltage semiconductor devices with much higher yields than their high-voltage counterparts. A group of Inverter Molecules operate autonomously and cooperatively to maintain the grid interconnection requirements while providing maximum power control on each molecule's PV panel. This paper overviews the state-of the-art control methods implemented mostly on cascaded H-bridge derived topologies and further establishes a distributed control scheme for Inverter Molecule architecture that does not need any high bandwidth communications except a heartbeat signal at line frequency. Experimental results are presented for a lab-scaled prototype.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"5 1","pages":"1130-1135"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75655844","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310328
Zhen Xin, Xiongfei Wang, P. Loh, F. Blaabjerg
The proportional capacitor-current feedback active damping method has been widely used to suppress the LCL-filter resonance. However, the time delay in the damping control loop may lead to non-minimum phase or even unstable responses when the resonance frequency varies in a wide range. To improve the robustness of damping, this paper proposes an improved damping controller with the capacitor current feedback loop, which is based on the second-order generalized integrator, instead of a proportional gain, which can effectively mitigate the detrimental effect of the time delay. Robustness of the proposed method against grid inductance variation is proved by z-domain and s-domain analyses. Finally, experimental results validate the effectiveness of the proposed method on a three-phase grid-connected converter.
{"title":"Enhanced stability of capacitor-current feedback active damping for LCL-filtered grid converters","authors":"Zhen Xin, Xiongfei Wang, P. Loh, F. Blaabjerg","doi":"10.1109/ECCE.2015.7310328","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310328","url":null,"abstract":"The proportional capacitor-current feedback active damping method has been widely used to suppress the LCL-filter resonance. However, the time delay in the damping control loop may lead to non-minimum phase or even unstable responses when the resonance frequency varies in a wide range. To improve the robustness of damping, this paper proposes an improved damping controller with the capacitor current feedback loop, which is based on the second-order generalized integrator, instead of a proportional gain, which can effectively mitigate the detrimental effect of the time delay. Robustness of the proposed method against grid inductance variation is proved by z-domain and s-domain analyses. Finally, experimental results validate the effectiveness of the proposed method on a three-phase grid-connected converter.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"52 1","pages":"4729-4736"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74538585","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310526
Zipeng Liang, Sideng Hu, Senjun Hu, Wuhua Li, Xiangning He
A new ultracapacitor-battery HESS based on bidirectional Z-Source topology is proposed in previous research for better energy and space utilization. By controlling the power of UCs and machine, the steady average battery current get controlled indirectly. However, for safety consideration, the dynamic performance of proposed HESS should be considered, so small signal model based on state-space average method is analyzed in this paper. Moreover, instantaneous current analysis for battery is studied in this paper as an extension for battery protection. Simulations and experiments are performed to verify the small signal model and the battery current estimation method.
{"title":"Estimation and control of battery charging current for the asymmetrical Z-source topology in the HESS application","authors":"Zipeng Liang, Sideng Hu, Senjun Hu, Wuhua Li, Xiangning He","doi":"10.1109/ECCE.2015.7310526","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310526","url":null,"abstract":"A new ultracapacitor-battery HESS based on bidirectional Z-Source topology is proposed in previous research for better energy and space utilization. By controlling the power of UCs and machine, the steady average battery current get controlled indirectly. However, for safety consideration, the dynamic performance of proposed HESS should be considered, so small signal model based on state-space average method is analyzed in this paper. Moreover, instantaneous current analysis for battery is studied in this paper as an extension for battery protection. Simulations and experiments are performed to verify the small signal model and the battery current estimation method.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"17 1","pages":"6180-6186"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74773786","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309896
Taylor Yeago, Ji Hoon Hyun, D. Ha, Qiang Li
A two-phase buck converter with optimum phase selection for low power applications is presented in this paper. The two-phase converter has a baby-buck phase optimized for light load and a heavy-load phase optimized for heavy load. The phase selector selects an appropriate phase depending on the load current to improve the efficiency. The two phases adopt pulse frequency modulation with constant on-time valley current mode control, in which the baby-buck phase operates mostly in discontinuous conduction mode (DCM) to increase light load efficiency while the heavy-load phase in continuous conduction mode (CCM). The load of the proposed converter ranges from 30 mW to 1 W, with efficiency ranging from 64% to 87%, respectfully. The baby-buck phase achieves the maximum efficiency of 81% at the load of 200 mW and the heavy-load phase 88.2% at 750 mW.
{"title":"A two-phase buck converter with optimum phase selection for low power applications","authors":"Taylor Yeago, Ji Hoon Hyun, D. Ha, Qiang Li","doi":"10.1109/ECCE.2015.7309896","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309896","url":null,"abstract":"A two-phase buck converter with optimum phase selection for low power applications is presented in this paper. The two-phase converter has a baby-buck phase optimized for light load and a heavy-load phase optimized for heavy load. The phase selector selects an appropriate phase depending on the load current to improve the efficiency. The two phases adopt pulse frequency modulation with constant on-time valley current mode control, in which the baby-buck phase operates mostly in discontinuous conduction mode (DCM) to increase light load efficiency while the heavy-load phase in continuous conduction mode (CCM). The load of the proposed converter ranges from 30 mW to 1 W, with efficiency ranging from 64% to 87%, respectfully. The baby-buck phase achieves the maximum efficiency of 81% at the load of 200 mW and the heavy-load phase 88.2% at 750 mW.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"32 1","pages":"1674-1680"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72853601","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309775
P. Xu, Z. Zhu, D. Wu
Inherent 2nd harmonic resistive and inductive saliencies are generally employed for rotor position estimation of permanent magnet synchronous machine at standstill and in low speed range. However, the resultant estimated rotor position has an angle ambiguity of π due to the lack of magnetic polarity information in these saliencies. Therefore, this paper utilises the high frequency (HF) inductance (permeance) harmonics (i.e., HF saliency) generated due to the saturation modulation between HF field and main flux field for rotor position estimation. Since the HF saliency contains the magnetic polarity information, the resultant carrier responses due to the interaction between HF field and HF saliency (i.e., the secondary harmonics) can be utilised for the actual rotor position tracking without any ambiguity of machine polarity. This will not only eliminate the time-consuming process of polarity identification but also enhance the position estimation robustness and stability. Finally, in order to validate the effectiveness of HF saliency based sensorless control strategies, experiments are carried out on a laboratory permanent magnet synchronous machine.
{"title":"Carrier signal injection based sensorless control of permanent magnet synchronous machines without the need of magnetic polarity identification","authors":"P. Xu, Z. Zhu, D. Wu","doi":"10.1109/ECCE.2015.7309775","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309775","url":null,"abstract":"Inherent 2nd harmonic resistive and inductive saliencies are generally employed for rotor position estimation of permanent magnet synchronous machine at standstill and in low speed range. However, the resultant estimated rotor position has an angle ambiguity of π due to the lack of magnetic polarity information in these saliencies. Therefore, this paper utilises the high frequency (HF) inductance (permeance) harmonics (i.e., HF saliency) generated due to the saturation modulation between HF field and main flux field for rotor position estimation. Since the HF saliency contains the magnetic polarity information, the resultant carrier responses due to the interaction between HF field and HF saliency (i.e., the secondary harmonics) can be utilised for the actual rotor position tracking without any ambiguity of machine polarity. This will not only eliminate the time-consuming process of polarity identification but also enhance the position estimation robustness and stability. Finally, in order to validate the effectiveness of HF saliency based sensorless control strategies, experiments are carried out on a laboratory permanent magnet synchronous machine.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"4 1","pages":"837-844"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74529008","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309988
Y. Guan, J. Vasquez, J. Guerrero
In this paper, a hierarchical control system based on a novel autonomous current sharing controller for grid-connected microgrids (MGs) is presented. A three-level hierarchical control system is implemented to guarantee the power sharing performance among voltage controlled parallel inverters, while providing the required active and reactive power to the utility grid. A communication link is used to transmit the control signal from the tertiary and secondary control levels to the primary control. Simulation results from a MG based on two grid-connected parallel inverters are shown in order to verify the effectiveness of the proposed control system.
{"title":"Hierarchical controlled grid-connected microgrid based on a novel autonomous current sharing controller","authors":"Y. Guan, J. Vasquez, J. Guerrero","doi":"10.1109/ECCE.2015.7309988","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309988","url":null,"abstract":"In this paper, a hierarchical control system based on a novel autonomous current sharing controller for grid-connected microgrids (MGs) is presented. A three-level hierarchical control system is implemented to guarantee the power sharing performance among voltage controlled parallel inverters, while providing the required active and reactive power to the utility grid. A communication link is used to transmit the control signal from the tertiary and secondary control levels to the primary control. Simulation results from a MG based on two grid-connected parallel inverters are shown in order to verify the effectiveness of the proposed control system.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"41 1","pages":"2333-2340"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74450580","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309665
Yongheng Yang, E. Koutroulis, A. Sangwongwanich, F. Blaabjerg
Several countries with considerable PhotoVoltaic (PV) installations are facing a challenge of overloading the power infrastructure during peak-power production hours. Regulations have been imposed on the PV systems, where more active power control should be flexibly performed. As an advanced control strategy, the Absolute Active Power Control (AAPC) can effectively solve the overloading issues by limiting the maximum possible PV power to a certain level (i.e., the power limitation), and also benefit the inverter reliability. However, its feasibility is challenged by the energy loss. An increase of the inverter lifetime and a reduction of the energy yield can alter the cost of energy, demanding an optimization of the power limitation. Therefore, aiming at minimizing the Levelized Cost of Energy (LCOE), the power limit is optimized for the AAPC strategy in this paper. The optimization method is demonstrated on a 3-kW single-phase PV system considering a real-field mission profile (i.e., solar irradiance and ambient temperature). The optimization results have revealed that superior performance in terms of LCOE and energy production can be obtained by enabling the AAPC strategy, compared to the conventional PV inverter operating only in the maximum power point tracking mode. In the presented case study, the minimum of LCOE is achieved for the system when the power limit is optimized to a certain level of the designed maximum feed-in power (i.e., 3 kW). In addition, the proposed LCOE-based analysis method can be used in the design of PV inverters considering mission profiles.
{"title":"Minimizing the levelized cost of energy in single-phase photovoltaic systems with an absolute active power control","authors":"Yongheng Yang, E. Koutroulis, A. Sangwongwanich, F. Blaabjerg","doi":"10.1109/ECCE.2015.7309665","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309665","url":null,"abstract":"Several countries with considerable PhotoVoltaic (PV) installations are facing a challenge of overloading the power infrastructure during peak-power production hours. Regulations have been imposed on the PV systems, where more active power control should be flexibly performed. As an advanced control strategy, the Absolute Active Power Control (AAPC) can effectively solve the overloading issues by limiting the maximum possible PV power to a certain level (i.e., the power limitation), and also benefit the inverter reliability. However, its feasibility is challenged by the energy loss. An increase of the inverter lifetime and a reduction of the energy yield can alter the cost of energy, demanding an optimization of the power limitation. Therefore, aiming at minimizing the Levelized Cost of Energy (LCOE), the power limit is optimized for the AAPC strategy in this paper. The optimization method is demonstrated on a 3-kW single-phase PV system considering a real-field mission profile (i.e., solar irradiance and ambient temperature). The optimization results have revealed that superior performance in terms of LCOE and energy production can be obtained by enabling the AAPC strategy, compared to the conventional PV inverter operating only in the maximum power point tracking mode. In the presented case study, the minimum of LCOE is achieved for the system when the power limit is optimized to a certain level of the designed maximum feed-in power (i.e., 3 kW). In addition, the proposed LCOE-based analysis method can be used in the design of PV inverters considering mission profiles.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"62 1","pages":"28-34"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72816930","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7310068
Wenzhi Zhou, Dan Sun, Min Chen, Bin Lin
This paper proposes a simplified PWM strategy for fault tolerant control of an open winding permanent magnet synchronous motor (OW-PMSM) fed by hybrid inverter (HI). The HI usually consists of two six-switch three-phase inverters (SSTPIs), the inverter powered by a DC source is named as main inverter (MI) and the inverter powered by a capacitor is named as compensation inverter (CI). When a power switch or a leg of CI fails, the CI can be reconfigured to a four-switch three-phase inverter (FSTPI). Since the phase current flows through the two capacitors in the FSTPI, it would introduce the neutral-point voltage fluctuation. By taking the unexpected neutral-point voltage fluctuation into account, a simplified PWM strategy is designed for the FSTPI, which can guarantee the high-quality voltages and currents even at the low speed states, it can also reduce the computation time of the system. Simulation studies have been carried out to verify the effectiveness and superiorities of the proposed strategy.
{"title":"Simplified PWM for fault tolerant control of open winding PMSM fed by hybrid inverter","authors":"Wenzhi Zhou, Dan Sun, Min Chen, Bin Lin","doi":"10.1109/ECCE.2015.7310068","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7310068","url":null,"abstract":"This paper proposes a simplified PWM strategy for fault tolerant control of an open winding permanent magnet synchronous motor (OW-PMSM) fed by hybrid inverter (HI). The HI usually consists of two six-switch three-phase inverters (SSTPIs), the inverter powered by a DC source is named as main inverter (MI) and the inverter powered by a capacitor is named as compensation inverter (CI). When a power switch or a leg of CI fails, the CI can be reconfigured to a four-switch three-phase inverter (FSTPI). Since the phase current flows through the two capacitors in the FSTPI, it would introduce the neutral-point voltage fluctuation. By taking the unexpected neutral-point voltage fluctuation into account, a simplified PWM strategy is designed for the FSTPI, which can guarantee the high-quality voltages and currents even at the low speed states, it can also reduce the computation time of the system. Simulation studies have been carried out to verify the effectiveness and superiorities of the proposed strategy.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"21 1","pages":"2912-2918"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74626962","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 : 2015-10-29DOI: 10.1109/ECCE.2015.7309940
D. Remon, A. Cantarellas, Mohamed Atef Abbas Elsaharty, C. Koch-Ciobotaru, P. Rodríguez
The increase of renewable energy sources and distributed generation may have a negative impact on power systems, specially on weak ones. Therefore, their control systems are acquiring growing importance, with new proposals that aim to contribute to the control and stability of the power system as conventional generating units. This paper studies the effect that a PV system using a synchronous power controller may have on a small power system constituted by a diesel generator, two loads and the PV generating unit. The response of this power system to realistic disturbances is compared with the case where the PV unit is controlled to provide its maximum power production regardless of the state of the system.
{"title":"Synchronous PV support to an isolated power system","authors":"D. Remon, A. Cantarellas, Mohamed Atef Abbas Elsaharty, C. Koch-Ciobotaru, P. Rodríguez","doi":"10.1109/ECCE.2015.7309940","DOIUrl":"https://doi.org/10.1109/ECCE.2015.7309940","url":null,"abstract":"The increase of renewable energy sources and distributed generation may have a negative impact on power systems, specially on weak ones. Therefore, their control systems are acquiring growing importance, with new proposals that aim to contribute to the control and stability of the power system as conventional generating units. This paper studies the effect that a PV system using a synchronous power controller may have on a small power system constituted by a diesel generator, two loads and the PV generating unit. The response of this power system to realistic disturbances is compared with the case where the PV unit is controlled to provide its maximum power production regardless of the state of the system.","PeriodicalId":6654,"journal":{"name":"2015 IEEE Energy Conversion Congress and Exposition (ECCE)","volume":"132 1","pages":"1982-1987"},"PeriodicalIF":0.0,"publicationDate":"2015-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73739004","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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