Power supply method for microgrid economical operation
A power supply method and economical operation technology, applied in the field of power supply for the economical operation of micro-grids, can solve the problems of less research on economical operation methods of micro-grids, and achieve the effect of ensuring power supply reliability, ensuring expected benefits, and increasing service life
Active Publication Date: 2015-01-14
STATE GRID CORP OF CHINA +2
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Problems solved by technology
[0007] However, there are relatively few studies on the economic operation methods of microgrids for different operation modes.
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[0061] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0062] like figure 1 It shows the environmental protection operation mode (when working in the environmental protection operation mode, use the fan 1 and photovoltaic 2 to generate electricity as much as possible to supply the load in the microgrid) and the investment operation mode (including the grid investment operation mode and the enterprise investment operation mode, in different cases) In the case of loss, use as much wind and photovoltaic energy as possible) power generation system, the system includes fan 1, photovoltaic 2, diesel engine 3, storage battery 4, main grid 5 and unloader 6. figure 2 It is a power generation system in self-ge...
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The invention discloses a power supply method for microgrid economical operation. Microgrid operating modes are classified according to the purpose of a microgrid constructor, and because the microgrid operating modes are different, the objective functions and the constraint conditions of economical operation are not completely same. According to the power supply method for microgrid economical operation, on the premise that reliable power supply is guaranteed, distributed renewable energy sources of wind, solar energy and the like are fully utilized, the utilization rate of the renewable energy sources is increased, and meanwhile the expected benefits of the microgrid constructor are guaranteed. The method has the advantages that under the condition that the main purpose of the microgrid constructor is met as much as possible, the distributed renewable energy sources are fully utilized, waste of clean wind and solar renewable energy source electric energy is avoided while power supply reliability is guaranteed, and the utilization rate of the renewable energy sources is increased. The problems that rural users have no electricity and power supply reliability is poor are solved; the power supply reliability of the users is guaranteed, the loss of the service life of a system is reduced, and the service life of the system is prolonged.
Description
technical field [0001] The invention relates to a power supply method for economical operation of a microgrid. Background technique [0002] With the development of distributed power sources, the integration and control of microgrids has become a research hotspot. Microgrids (also translated as microgrids) have the characteristics of single controllability and flexible dispatching, and can be used as backup power sources. load power supply. Its operating mode can be switched flexibly, and it has the ability of "black start", which improves the reliability of power supply for loads within the scope. By building micro-grids of different forms and sizes according to local conditions, the problem of power supply in remote areas can be solved. The economic operation method of microgrid can effectively integrate the advantages of distributed power generation, coordinate the contradiction between distributed power generation and large power grid, give full play to the benefits of...
Claims
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Login to View More IPC IPC(8): G06Q50/06
CPCG06Q10/0637G06Q50/06Y04S10/50
Inventor 孙国城杨文赵景涛唐斐罗建裕李海峰金涛韦磊
Owner STATE GRID CORP OF CHINA