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Memetic algorithm-based method for researching optimal configuration of switches of power distribution networks

A technology for optimizing configuration and distribution network, applied in computing, instrumentation, data processing applications, etc., which can solve the problems of low cost performance and high investment cost

Inactive Publication Date: 2017-05-31
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Configuring switchgear in the distribution network can enhance the flexibility of its operation, but due to the large scale of the distribution network, if the switchgear is configured on each feeder section, the investment cost is too high, and its cost performance is too low. configuration for optimization

Method used

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  • Memetic algorithm-based method for researching optimal configuration of switches of power distribution networks
  • Memetic algorithm-based method for researching optimal configuration of switches of power distribution networks
  • Memetic algorithm-based method for researching optimal configuration of switches of power distribution networks

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Embodiment

[0145] Taking the IEEE RBTS BUS-2 power distribution system as the object of analysis, the system wiring is as follows: figure 2 shown. There are 36 branches, 4 circuit breakers (all located at the head end of the feeder) and 22 load points in the power distribution system. The line impedance per unit length is 0.27+j0.347Ω / km. The specific electrical parameters and load parameters are shown in the table 2 and 3 are shown. Assuming that the cost of the remote control switch is twice that of the manual switch, and under the conditions of whether the load is transferred or not, and whether the switch is remotely controlled or not, the optimization calculation is carried out based on the above method respectively. The comparison of several typical calculation results is shown in the table 4, where the position of the tie switch indicates that the tie line and the tie switch are set up between the corresponding branch end nodes.

[0146] Table 2 Electrical parameters of IEEE RBTS...

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Abstract

The invention discloses a memetic algorithm-based method for researching optimal configuration of switches of power distribution networks. The method comprises the following steps of comprehensively considering the balance of economy and reliability by taking a minimum power supply zone as a basic analysis unit, calculating the differences between a manual switch and a remote control switch, and establishing a mathematic model for optimizing a section switch and an interconnection switch at the same time on the basis of a cost-benefit theory; importing a memetic algorithm, and combining an intelligent algorithm and a local search strategy to optimize the mounting quantity and positions of the section switch and the interconnection switch; and carrying out analysis by applying an IEEE RBTS-BUS 2 system, and the results show that load capacities at two ends of the switches need to be basically balanced and then the effectiveness of the method is verified.

Description

technical field [0001] The invention relates to a distribution network optimization configuration method, in particular to a distribution network switch optimization configuration research method based on a memetic algorithm. [0002] technical background [0003] The distribution network is at the end of the power supply chain and directly faces the majority of power customers. The level of its construction is closely related to the power supply capacity, power supply reliability and power quality of the system. Configuring switchgear in the distribution network can enhance the flexibility of its operation, but due to the large scale of the distribution network, if the switchgear is configured on each feeder section, the investment cost is too high, and its cost performance is too low. configuration is optimized. Switch configuration is an important part of distribution network planning and the premise of realizing distribution automation. Reasonable arrangement of the type...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06
Inventor 余昆陈星莺郑馨怡
Owner HOHAI UNIV
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