Search results for "Grid Code"

showing 3 items of 3 documents

Technical Rules for Connecting PV Systems to the Distribution Grid: A Critical Comparison of the Italian and Vietnamese Frameworks

2018

In the last two decades, starting from the Kyoto protocol, decarbonization has promoted worldwide the rise of distributed generation from renewable energy sources. Currently, Vietnam is still showing a strong dependence on fossil fuels but with a great interest in investing in renewable, especially in photovoltaic (PV) systems. In this paper, the current Vietnamese technical and administrative framework for the connection of PV systems to the power grid is presented and critically compared to the Italian one, in order to define the bases for future cooperation in distributed generation and renewable sectors.

020209 energyVietnameseEnergy Engineering and Power TechnologyDistributed Generation02 engineering and technologyTechnical ruleOrder (exchange)ConnectionGrid-on0202 electrical engineering electronic engineering information engineeringRenewable Energy Sustainability and the Environmentbusiness.industryFossil fuelPhotovoltaic systemGrid-connectedEnvironmental economicslanguage.human_languageRenewable energySettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaItalyVietnamGrid CodeDistributed generationlanguageGrid codeKyoto Protocolbusiness2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe)
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Graphical THD minimization procedure for single phase five-level converters

2017

This paper proposes two graphycal procedure to mitigate h harmonics and to minimize the total harmonic distortion (THD), respectively. The paper considers a five-level inverter and fundamental frequency modulation: it computes the two switching angles able to reduce low order harmonics and able to minimize the THD. Simulation results are obtained and, in order to validate the proposed procedure, an experimental prototype is built and experimental results are carried out. The comparison between simulation and experimental results confirms the accuracy of the proposed graphycal procedure. It is shown that the switching angles to mitigate the third-fifth and the third-fifth-seventh harmonics e…

Graphycal Procedure; Grid Codes; Harmonics Mitigation; Multilevel Inverters; Total Harmonic Distortion (THD); Electrical and Electronic Engineering; Control and Systems EngineeringGraphycal ProcedureTotal harmonic distortionEngineeringbusiness.industryTotal Harmonic Distortion (THD)020208 electrical & electronic engineeringModulation indexGrid Codes02 engineering and technologyFundamental frequencyElectronic mailHarmonic analysisHarmonics MitigationMultilevel InvertersControl and Systems EngineeringControl theoryHarmonics0202 electrical engineering electronic engineering information engineeringHarmonicElectronic engineeringInverterElectrical and Electronic Engineeringbusiness2017 IEEE 26th International Symposium on Industrial Electronics (ISIE)
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Harmonic reduction in CHB 13-level inverters by PAM fundamental-frequency strategy

2019

In this paper cascaded H-bridges (CHB) 13-level inverters are considered and a particular pulse amplitude modulation (PAM) strategy is introduced to mitigate or eliminate many harmonic components on the output voltage, in order to obtain low Total Harmonic Distortion (THD) factor. This procedure defines different dc voltage sources and sets of six switching angles, depending on an integer parameter $q$ belonging to the close interval $I=[11, 15]$ . The obtained THD doesn't depend on modulation index $m$ . The control of $m$ is made by changing the dc voltage sources that depend linearly on m, while the switching angles remain constant. An investigation about the role of the $q$ parameter on…

PhysicsTotal harmonic distortionTotal Harmonic Distortion (THD)Pulse Amplitude Modulation (PAM)Modulation indexGrid CodesFundamental frequencySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTopologySettore ING-INF/01 - ElettronicaPulse Amplitude Modulation (PAM); Selective Harmonic Mitigation (SHM); Selective Harmonic Elimination (SHE); Total Harmonic Distortion (THD); Grid CodesSettore ING-IND/31 - ElettrotecnicaSelective Harmonic Mitigation (SHM)Pulse-amplitude modulationGrid CodeHarmonicsHarmonicInverterVoltageSelective Harmonic Elimination (SHE)
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