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Smart Grid battery energy storage value assessment study

Author: YanZhiMin
Tutor: WangChengMin
School: Shanghai Jiaotong University
Course: Electrical Engineering
Keywords: Smart Grid BESS Valuation PSO Wind Power
CLC: TM76
Type: Master's thesis
Year: 2012
Downloads: 354
Quote: 1
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Abstract


Energy storage technology has been regarded as the power system during operation \After the introduction of storage areas, can effectively achieve demand-side management, reducing the peak-valley difference between day and night, adjust the load. One can effectively improve the utilization of electrical equipment, reduce the cost of electricity; other hand, can promote renewable energy. Energy storage technology can also improve system stability as to adjust the frequency, the compensation as a means of load fluctuations. Energy storage technology to the traditional power system design, planning, scheduling, control and other aspects of significant change, and battery energy storage as a mature technology, adjust a performance storage technology has been widespread concern. Battery energy storage technologies for value assessment, the purpose is to establish the value of its multifaceted assessment model to determine the optimal operation by optimizing the application of the scale and its economic analysis. Applied to the grid on different occasions, for different investors, its main value aspect is different, so it is necessary to model were evaluated. Relevant aspects of domestic little research, and foreign literature into account the value of the energy storage aspect is not comprehensive enough, for example, without taking into account costs and to reduce network losses and reducing power shortage losses. In this thesis, a more comprehensive battery energy storage system for (Battery Energy Storage System, BESS) used in distribution network, the user side and wind farm value of the three major occasions conduct research, valuation model is mainly aimed at the maximum annual net income , combined with the battery charge and discharge characteristics establish constraints using particle swarm algorithm to solve numerical example, respectively. BESS grid upgrades applied to the grid side retard investment, saving the cost of network loss, low reservoir high arbitrage, spare capacity as a distributed power grid reliability and reduce costs; applied to the user side, primarily for regulating the load (Load Leveling, LL ) and as an uninterruptible power supply (Uninterruptible Power Supply, UPS), so the value of its main aspects of the construction required by the user, including reduced distribution capacity, high-fat low-Chu save electricity, reduce costs and reduce the loss distribution transformer power shortage losses; while the application in the wind farm, its main value lies in reducing the required channel capacity building and Netcom, reducing the required reserve capacity wind farm, TOU through the storage time shift (when the Dutch part of the valley to the peak load electricity when transferring ) increase in revenue from electricity generators to sell in the establishment of annual net income target model taking into account the energy storage system for wind farms adjust to fluctuations in wind power output indicators for the objective function, membership function method for multi-objective optimization model homogenization. In this paper, results of previous studies, based on the value of the battery energy storage a more comprehensive assessment of the technology application and promotion reference.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system automation
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