A method for calculating the reserve capacity of a microgrid and a method for controlling the microgrid
A technology of reserve capacity and micro-grid, which is applied in the direction of electrical components, circuit devices, AC network circuits, etc., to ensure the effect of economy
Active Publication Date: 2020-06-02
STATE GRID GASU ELECTRIC POWER RES INST +3
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[0005] In order to solve the problem of the reliability of the micro-grid in the prior art, the present invention provides a method for calculating the reserve capacity of the micro-grid and a method for controlling the micro-grid
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[0025] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0026] figure 1 It is a schematic flow chart of a method for calculating the reserve capacity of a microgrid according to a specific embodiment of the present invention, such as figure 1 As shown, a method for calculating the reserve capacity of a microgrid is characterized in that it includes: calculating the preset power failure probability of each system failure backup corresponding to the power supply failure power outage according to the outage capacity probability table of the microgrid; the outage capacity probability The table is obtained according to the capacity and forced outage rate of each power supply in the microgrid; according to the power failure probabil...
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The invention provides a microgrid reserve capacity calculation method and a microgrid regulation and control method. The method for calculating the spare capacity of the microgrid comprises the stepsthat the power failure probability of the power failure of each system fault according to the outage capacity probability table of the microgrid can be calculated; the outage capacity probability table is obtained according to the capacity and the forced outage rate of each power supply; the corresponding maximum prediction error default probability is calculated according to the power failure probability and the maximum power failure probability of any power supply; the prediction error capacity is inquired in the prediction error normal distribution table by applying the maximum predictionerror missing probability; the prediction error normal distribution table is obtained according to the output value of each power supply and the prediction error of the load value; the minimum value of the sum of the capacity corresponding to the fault reserve of each system and the capacity of the prediction error is used as the reserve capacity of the microgrid. The method provided by the invention provides a scheme for setting the spare capacity of the microgrid, so that the economical efficiency of the micro-grid capacity reserve is ensured while the safe operation of the micro-grid is met.
Description
technical field [0001] The invention relates to the technical field of micro-grid operation control, in particular to a method for calculating a reserve capacity of a micro-grid and a method for regulating and controlling a micro-grid. Background technique [0002] Distributed power generation refers to the use of various available and dispersed energy sources for power generation. Distributed power generation has increasingly become a research hotspot due to its advantages of small investment, clean and environmentally friendly, reliable power supply and flexible power generation methods. However, with the access of large-scale distributed power, the randomness, volatility and intermittency of distributed power will cause problems or impacts on power quality, network loss, power grid protection and real-time monitoring, and grid-connected standards. [0003] Microgrid is an effective way to integrate the advantages of various distributed energy sources, weaken the adverse i...
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IPC IPC(8): H02J3/00H02J3/38
CPCH02J3/00H02J3/38H02J3/388H02J2203/20
Inventor 杨俊张宇沈渭程董开松马喜平胡殿刚李韶瑜赵炜张光儒李志敏闵占奎刘秀良陈明忠甄文喜魏博同焕珍姜梅王斌杨勇赵耀朱宏毅张赛刘丽娟梁有珍陈柏旭赵凤展杜松怀
Owner STATE GRID GASU ELECTRIC POWER RES INST