Optimized scheduling method based on multi-energy complementary micro-grid and active power distribution network

Abstract

The invention discloses an optimal scheduling method based on a multi-energy complementary micro-grid and an active power distribution network. The method comprises the following steps: respectively establishing an optimal scheduling target model of the multi-energy complementary micro-grid and an optimal scheduling target model of the active power distribution network; establishing an optimization scheduling constraint condition; establishing a double-layer optimization model by taking the optimization scheduling target model of the multi-energy complementary micro-grid and the optimization scheduling target model of the active power distribution network as optimization targets and the optimization scheduling constraint conditions as constraint conditions; and solving the double-layer optimization model, and carrying out optimization scheduling operation based on a solving result. According to the method, coordinated optimization of the multi-energy complementary micro-grid and the active power distribution network is realized, various energy requirements in the micro-grid can be met, gradient utilization of different energy sources is realized, the operation state of the active power distribution network can be considered, support is provided for safe operation of the power distribution network, and the energy benefit of a user-side comprehensive energy system can be improved.

Description

Technical field [0001] The invention belongs to the field of comprehensive energy operation dispatching of power systems, and specifically relates to an optimized dispatching method based on multi-energy complementary microgrids and active distribution networks for improving the energy efficiency of user-side integrated energy systems. Background technique [0002] With the gradual depletion of traditional primary energy, various forms of renewable energy have been widely used. With the gradual increase in the penetration rate of renewable energy, traditional distribution networks have transformed into active distribution networks, which are characterized by distributed control and dispatch and bidirectional power flow. In order to cope with the growing power supply security issues and take into account the economics of energy, cleanliness and various ancillary services, the integration of multiple microgrids into the distribution network has gradually become mainstream. As...

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Problems solved by technology

[0004] In the prior art, most of the dispatching of the multi-energy complementary microgrid is concentrated inside the microgrid, without considering the overall situation of the active distribution network where the multi-energy complementary microgrid is located, and most studies have not been able to analyze the topology of the distribution network. Considering that the optimal scheduling has limitations and does not reach the global optimum

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