PROBABILISTIC LOAD FLOW CALCULATION METHOD CONSIDERING ADMITTING ABILITY OF POWER GRID

• Main Authors: NING, Bo, DING, Qia, LIU, Lili, GE, Jun, MA, Xiaoqing, GAO, Zonghe, XIE, Lirong, HE, Wen, HAN, Hongwei, YU, Jie, CHEN, Rensi, ZHANG, Huiling
• Format: Patent
• Language: Chinese; English; French
• Published: 21.09.2017
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ONOTHER TECHNOLOGY AREAS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORKOPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FORIMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION,DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

A probabilistic load flow calculation method considering power grid acceptance capacity, comprising the following steps: step 1, building a cumulative distribution function of a new energy power generation power variable according to the acceptance capacity of the power grid for new energy generation power, wherein the cumulative distribution function is described in the form of a piecewise function; step 2, calculating a sampling frequency of the new energy power generation variable in each of sections by using a proportional distribution principle, according to the built cumulative distribution function F(pk) of the new energy power generation power variable, and then by using a Latin hypercube sampling method, sampling the new energy power generation power variable in each of sections to build a sample matrix of the new energy power generation power variable; step 3, using the sample matrix of the new energy power generation power variable as an input variable to perform the probabilistic load flow calcula