A micro-grid optimization operation evaluation method and system for grid-connected operation
A technology for optimizing operation and evaluation methods, applied in the direction of single-network parallel feeding arrangement, AC network circuit, AC network load balancing, etc., can solve the problems of no micro-grid evaluation, etc., and achieve the effect of promoting development and improving economy
Active Publication Date: 2021-11-09
SHENZHEN POWER SUPPLY BUREAU +1
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In order to understand the benefits brought by the power grid, the power grid company needs to evaluate the operation of the power grid. The existing power grid evaluation system is mainly proposed for the traditional power grid, and there is no evaluation for the micro-grid.
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[0033] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0034] In order to illustrate the technical solution of the present invention, the following will be described through specific embodiments in conjunction with the accompanying drawings.
[0035] Such as figure 1 As shown, the embodiment of the present invention provides a microgrid optimization operation evaluation method, which can be widely applied to various single-layer and double-layer mic...
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The invention discloses a microgrid optimization operation evaluation method and system for grid-connected operation. The method includes periodically collecting microgrid operation data, and the microgrid operation data includes the number of times the energy storage battery is full and the number of times the energy storage battery is empty , energy storage charging current, energy storage charging current change rate, and main grid power; according to the collected micro-grid operation data, periodically calculate the micro-grid optimization operation index through the following formula: Periodically according to the calculated micro-grid optimization The operation index evaluates the optimal operation of the microgrid. The system includes a data acquisition module, a microgrid optimization operation index calculation module and a microgrid operation evaluation module, which are used to implement the method. The method and system can optimize and control the operation mode of the microgrid according to the evaluation results, thereby improving the economical efficiency of the microgrid operation and promoting the development of the microgrid.
Description
technical field [0001] The invention relates to micro-grid operation evaluation, in particular to a method and system for evaluating the optimal operation of a grid-connected micro-grid. Background technique [0002] Traditional power generation mainly uses thermal power generation. With the depletion of fossil energy and the requirements of low-carbon and environmental protection, new energy has gradually replaced traditional power generation. Existing clean energy includes wind energy, water energy, solar energy, etc. These clean energy uses distributed power generation, also known as distributed energy. If these distributed energy sources are directly connected to the grid, it may cause many problems such as the power quality of the power system and the safety and stability of the power grid. In order to further improve the flexibility, controllability and economy of power system operation, and to better meet the higher requirements of power users for power quality and p...
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IPC IPC(8): H02J3/38H02J3/32
CPCH02J3/32H02J3/38H02J2203/20
Inventor 丁庆刘顺桂朱正国张琳秦毅
Owner SHENZHEN POWER SUPPLY BUREAU