Impacts of photovoltaic power generation on very long distribution line

Parameechok, R.; Premrudeepreechacharn, S.; Kasirawat, T.

doi:10.1109/naps.2009.5484020

Cited by 4 publications

(2 citation statements)

References 8 publications

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“…The regional integrated energy system considered in this paper has a distributed power generation system as its input [3]. The power supply system passes through different energy conversion equipment to output cooling demand, heating demand and power supply demand.…”

Section: Framework Of Multi-energy Complementary Cooling-heat-electricitymentioning

confidence: 99%

Multi-objective operation optimization of regional integrated energy system based on NSGA-II algorithm

2021

E3S Web Conf.

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With the deepening of China’s energy market reform and the promotion of integrated energy services, the regional integrated energy system becomes an important development direction of energy supply system. In order to maximize the economic efficiency and reduce the air pollutant emission of the regional integrated energy system, the distributed power generation module and the cooling-heat-power (CCHP) triple-supply module are formed into a model, and the power balance, equipment capacity and environmental factors of the system are constrained with the objective function of minimizing the daily operation cost of the system as well as minimizing the air pollutant emission. Based on the mathematical system framework model and the optimal operation control strategy, the NSGA-II algorithm is used to solve the multi-objective programming model to obtain the Pareto solution set, and the hourly output of the optimal operation of the system equipment with both economic and environmental benefits is obtained. The results show that the daily operating costs and pollutant emissions of the district energy system are significantly reduced compared with those without optimization, which effectively solves the problems of low operating efficiency and serious environmental pollution of the district energy system and achieves the optimal operation with both economic and environmental benefits.

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Section: Framework Of Multi-energy Complementary Cooling-heat-electricitymentioning

confidence: 99%

Multi-objective operation optimization of regional integrated energy system based on NSGA-II algorithm

2021

E3S Web Conf.

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“…The traditional peak load regulation concept is impacted by PV integration and must be changed. [61] analyses the impacts of the PV system on the distribution lines to see the effects of feeder loading. Results demonstrated that at low PV penetration levels the losses and the voltage profile of the line are improved whereas at higher PV penetration, the losses are substantially increased along long distribution line.…”

Section: Impacts On Reliability Security and The Networkmentioning

confidence: 99%

Modeling of Utility Distribution Feeder in OpenDSS with Steady State Impact Analysis of Distributed Generation

Ramachandran¹

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With the deregulation of the electric power industry and the advancement of new technologies, the attention of the utilities has been drawn towards adopting Distributed Generation (DG) into their existing infrastructure. The deployment of DG brings ample technological and environmental benefits to the traditional distribution networks. The appropriate sizing and placement of DGs which generate power locally to fulfill consumer demands, helps to reduce power losses and avoid transmission and distribution system expansion. The primary objective of this thesis is to model a utility distribution feeder in OpenDSS. Studies are conducted on the data obtained from American Electric Power utility. This thesis develops models for 12.47 kV (medium voltage) distribution feeders in OpenDSS by utilizing the existing models in CYMDIST. The model conversion is achieved by a detailed one-to-one component matching approach for multi phased lines, conductors, underground cables, loads, regulators and capacitor banks. The power flow results of OpenDSS and CYMDIST are compared to derive important conclusions. The second major objective is to analyze the impacts of DG on distribution systems and two focus areas are chosen, namely: effect on voltage profiles and losses of the system and the effects on power market operation. To analyze the impacts of DG on the distribution systems, Photovoltaic (PV) system with varying penetration levels are integrated at different locations along the developed feeder model. PV systems are one of the fastest growing DG technologies, with a lot of utilities in North America expressing interest in its implementation. Many utilities either receive incentives or are mandated by green-generation portfolio regulations to install solar PV systems on their feeders. The large number of PV interconnection requests to the utilities has led to typical studies in the areas of power quality, protection and operation of distribution feeders. The high penetration of PV into the system throws up some interesting implications for the utilities. Bidirectional power flow into a distribution system, (which is designed for one way power flow) may impact system voltage profiles and losses. In this thesis, the effects of voltage unbalance and the losses of the feeder are analyzed for different PV location and penetration scenarios. Further, this thesis tries to assess the impact of DG on power market operations. In a deregulated competitive market, Generation companies (Genco) sell electricity to the Power exchange (PX) from which large customers such as distribution companies (Disco) and aggregators may purchase electricity to meet their needs through a double sided bidding system. The reliable and efficient operation of this new market structure is ensured by an independent body known as the Independent System Operator (ISO). Under such a market structure, a particular type of unit commitment, called the Price Based Unit Commitment (PBUC) is used by the Genco to determine optimal bids in order to maximize its profit. Howev...

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Grid-connected resonance analysis of half-wavelength transmission system with wind power and photovoltaic power supply

Wang

et al. 2022

International Journal of Electrical Power & Energy Systems

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Impacts of photovoltaic power generation on very long distribution line

Cited by 4 publications

References 8 publications

Multi-objective operation optimization of regional integrated energy system based on NSGA-II algorithm

Multi-objective operation optimization of regional integrated energy system based on NSGA-II algorithm

Modeling of Utility Distribution Feeder in OpenDSS with Steady State Impact Analysis of Distributed Generation

Grid-connected resonance analysis of half-wavelength transmission system with wind power and photovoltaic power supply

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