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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Load flow analysis"”.
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LOAD FLOW ANALYSIS IN COMPOSITE SYSTEM RELIABILITY EVALUATION
… outage situations. This involves numerous load-flow studies for different system component outage conditions. The Object of this research project is to examine the existing methods suitable for repeated load-flow analysis in composite system reliability evaluation. A new method and a few …
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Multireference power system modeling and multiphase load flow analysis
… of network imbalances and unbalanced phase loadings. In grounded-wye systems, currents that flow in the earth can have significant effects on the system's behavior. Both these effects must be considered in an accurate multiphase power system model. A new treatment of multiphase power system …
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Extending the Herman-Beta transform for probabilistic load flow analysis of radial feeders
… susceptible to voltage-rise and equipment overload conditions, while the levels of uncertainty associated with the power system’s parameters increase significantly. The resulting networks characterised by the bi-directional flow of power, uncertainty from stochastic customer load variations and …
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Digital load flow analysis using general matrix storage and non-zero element storage
This thesis deals with the AC Load Flow Problem and the comparison of two different solution techniques. The basic solution used was the Newton Raphson method. The two methods used to solve for the corrections to the bus voltages are general matrix storage and nonzero element storage. In the …
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Loss minimization in the modified algorithm of load flow analysis in industrial power system
… minimization using B-loss formula in solving load flow analysis. A modeling of electrical system elements is first developed. A literature review on the history and development of load flow analysis and loss minimization especially on the use of B-loss formula are delivered. A report on load …
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Comparison of Power Flow Algorithms for inclusion in On-line Power Systems Operation Tools
… this thesis is to develop a new, fast, adaptive load flow algorithm that "automatically alternates" numerical methods including Newton-Raphson method, Gauss-Seidel method and Gauss method for a load flow run to achieve less run time. Unlike the proposed method, the traditional load flow analysis …
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The ladder load-flow method extended to distribution networks
The rigorous load-flow analysis of Distribution Networks requires the modeling of mutual coupling, multiphase possibilities and unbalanced loading. The Ladder Load-Flow Method meets these requirements, but is limited to radial systems. The Switch Compensation Method presented here, extends the …
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Load Flow Study for Utility-Scale Wind Farm Economic Operation and Reactive Power Grid Compliance
… the creation of an Excel tool to perform a load flow study given inputs for a wind farm using Newton-Raphson algorithms. Next, the results of the load flow analysis will be compared to an actual operating wind farm located in Texas to review the accuracy of the scenarios. Finally, …
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Modeling of open bank distribution transformer connections
… available field data. In addition, unbalanced loading situations, which are encountered frequently in distribution transformer utilization, must be handled properly. These requirements form the basis for the modeling of the open-wye/open-delta and open-delta/open-delta distribution transformer …
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Feeder reconfiguration on distribution network considering harmonics
… system harmonics in the feeder reconfiguration. Load flow analysis is used to determine a suitable network structure for specific purposes in the feeder reconfiguration problem. In this thesis, a new load flow method is proposed based on the backward/forward sweep method. This method can analyse …
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Data Driven Approach for Increasing Power Grid Situational Awareness and Mitigating Cascaded Failures
… to act as synchronous generator. Results of load flow analysis of modified IEEE 30 bus system is used to train ANN.</p> <p>Electric power grid and communication system are interdependent. In other words, electric power grid relies on communication network to transmit control signal and from …
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Evaluation and Standardizing of Phasor Data Concentrators
… part in many power system applications from load flow analysis and state estimation to analyzing blackout causes. Phasor Data Concentrators (PDC) collect and process PMU data. As such, it is important that PMU and PDC communication is seamless. PDCs are set up at multiple utilities and power …
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Segflow: a new object-oriented load flow which uses trace methods and affiliation objects
… a new alternative type of object-oriented load-flow called Segflow. Segment objects are used to support the modeling of individual types of power system equipment. Current and voltage trace techniques are used by Segflow to bind Segment models in support of Kirchoff’s laws. Affiliation …
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Impact of Location and Size of Solar PV Plants for Integration in the Lusaka distribution grid network
… losses at distribution level, voltage drops and load growth. The distribution lines in Lusaka area are heavy-load lines with the highest demand density in Zambia. The Lusaka distribution line network system consists of a loop formed by interconnection of bulk supply points. Integration of energy …
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Impact of Location and Size of Solar PV Plants for Integration in the Lusaka distribution grid network
… losses at distribution level, voltage drops and load growth. The distribution lines in Lusaka area are heavy-load lines with the highest demand density in Zambia. The Lusaka distribution line network system consists of a loop formed by interconnection of bulk supply points. Integration of energy …