Operation optimization method for power distribution network comprising schedulable distributed power supply

Abstract

The invention discloses an operation optimization method for a power distribution network comprising a schedulable distributed power supply. The method comprises the following steps: inputting initial values of a line parameter, load level, network topology connection relationship, a distributed power supply connection position, a power factor, reference voltage and reference power according to a given power distribution system comprising the schedulable distributed power supply; establishing a mathematical model for an operation optimization problem of the power distribution network comprising the schedulable distributed power supply according to all the parameters; introducing a variable Xi<ij> to perform indirect description on a branch switch state: when branch ij is disconnected, keeping Xi<ij> to be equal to zero, and when the branch ij is connected, keeping Xi<ij> to be equal to Xi; setting rotating cone constraint according to the network structure and scale; solving the mathematical model for the operation optimization problem of the power distribution network comprising the schedulable distributed power supply, an inequality for performing indirect description on the branch switching state and the rotating cone constraint by using a cone optimization method; and outputting a solving result. According to the method, the economy and the reliability for operation of the power distribution system are further improved, and simultaneous optimization of output power of a plurality of distributed power supplies is realized.

Description

technical field [0001] The invention relates to an operation optimization method of a distribution network including a distributed power supply. In particular, it relates to a method for optimizing the operation of a distribution network with dispatchable distributed power sources. Background technique [0002] Traditional distribution network operation optimization refers to improving the operation status of the distribution network by adjusting the output of power compensation equipment and network reconfiguration on the premise of meeting the voltage requirements of each busbar and all equipment running within the limit, so as to realize the power distribution network. network optimization. At this stage, with the rapid development of distributed power generation technology, communication technology and control methods, various distributed power sources, energy storage devices, electric vehicles, intelligent terminals and flexible power distribution devices will increasi...

AI Technical Summary

Problems solved by technology

Since the rationality of the contact switch needs to be verified every time the state of the tie switch is corrected, and a large amount of calculation time is spent on the tedious power flow solution

Therefore, the existing methods often cannot meet the needs of the distribution network operation optimization problem in actual engineering in terms of calculation accuracy and calculation speed.

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