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[IEEE 2018 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE) - Sg. Long, Cheras, Kajang, Malaysia (2018.5.29-2018.6.1)] 2018 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE) - Improving Rural Electrification through Interconnected Solar Micro Grids
摘要： Renewable energy based rural electrification system experiences fluctuation in generation efficiency due to various unpredictable dynamic changes such as solar irradiation levels, rainfall, dust accumulation, vegetation, etc. Due to these fluctuations the system experiences frequent power quality issues such as low voltage, power interruptions, operating the degradation of the performance and reliability of these solar micro grid systems. In this paper micro grid cluster interconnection methodology is proposed to improve the efficiency of the system. To develop real-time decisions on energy management and micro grid interconnections, we have designed an IoT system that is capable to monitor and learn the dynamic changes in power quality to control the subsystems for improving the quality of service. In this work we have analysed the need of such a system in one of the rural community having solar micro grid deployment in South India. Based on the needs we have designed and developed an end-to-end system consisting of perception layer, network layer and application layer. Detailed experimentation and laboratory and the evaluation was performed performance results are discussed in this paper.
关键词： rural electrification,optimised renewable energy utilisation,power sharing,micro grid,community development,grid interconnection
更新于2025-09-04 15:30:14
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Quasi-Static Surface-PEEC Modeling of Electromagnetic Problem With Finite Dielectrics
摘要： This paper presents a quasi-static surface-based partial element equivalent circuit (PEEC) model for electromagnetic problems consisting of coupled conductors and heterogeneous dielectrics of finite size. The PEEC model is based on the surface equivalent principle. Unlike the traditional surface-based PEEC models, in which the integral equations are set up by enforcing the field continuity in the true field region, the homogeneous integral equations in this model are obtained by enforcing the tangential null field condition in the null field regions. Simplified integral equations are obtained under the quasi-static assumption, in which the circuit elements carrying electric currents and magnetic charges on the dielectric surfaces are vanished. Consequently, the size of the subcircuit describing dielectrics is reduced significantly compared to the full-wave surface-PEEC (S-PEEC) model. Since the quasi-static S-PEEC model only contains frequency-independent circuit elements, it can be conveniently used for time-domain simulation. Three numerical examples are presented to validate the new PEEC model for typical embedded RF passive components, packaging and interconnection problems in both the frequency domain and the time domain. Excellent agreement is observed between the results of the proposed PEEC model, S-PEEC model, and those of commercial software within the quasi-static frequency range.
关键词： Dielectrics,integral equations,interconnection,partial element equivalent circuit (PEEC) method,embedded passives
更新于2025-09-04 15:30:14