Calculation method for theoretical line loss of distribution network considering small power supply

• Main Authors: CHENG XINGONG, CHEN FANG, RU XULI
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2019
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

The invention discloses a calculation method for theoretical line loss of a distribution network considering a small power supply. The calculation method comprises the following steps of: obtaining aresistance of each branch of the distribution network, the active power, a reactive power, a voltage and current data of each node; counting a power consumption of each small power node, using an average current method to calculate the power loss of the distribution network; calculating injection current of each node according to the active power, the reactive power, a voltage amplitude and a current amplitude of each node; forming a path mutual resistance matrix by using a search method; obtaining an accurate electric energy loss calculation model, and a loss calculation model based on the average current method by adopting a loop analysis method based on the path mutual resistance matrix and the injection current of each node; using the accurate power loss calculation model, and the losscalculation model based o