Nearby-island multi-microgrid dynamic scheduling method based on MCS-PSO
A dynamic scheduling, multi-microgrid technology, applied in the field of power systems, can solve problems such as the limitation of power supply reliability and adjustment capacity
Active Publication Date: 2014-07-02
ZHEJIANG UNIV
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Problems solved by technology
For an isolated microgrid without the support of the main grid, due to the volatility and randomness of wind and solar resources, it is necessary to rely on the energy storage system to maintain the balance between power generation and load, and its power supply reliability is limited by its own regulation ability
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[0077] The present invention will be further described below with reference to the accompanying drawings.
[0078] like figure 1 As shown, in the island new energy multi-microgrid system, the internal structural units of the microgrid system are mainly:
[0079] 1) Distributed power generation: In the island microgrid, distributed power generation (DG) mainly includes wind power and photovoltaic power generation, and renewable energy power generation is the main power generation method. Its power generation is determined by the real-time weather conditions, and it can be predicted for a certain period of time by using an appropriate prediction method.
[0080] 2) Load: Through the load prediction method, after considering various factors such as user type, temperature, and holidays, the load demand in a certain period of time can be predicted. When the power supply is tight, part of the load can be shed to keep the system running.
[0081] 3) Energy storage device: In the o...
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The invention relates to a nearby-island multi-microgrid dynamic scheduling method based on MCS-PSO. At present, the research for the multi-microgrid interconnection technology is intensive step by step. However, the research for multi-microgrid active scheduling is less. On the basis of generation and load prediction, an optimization model for each microgrid interconnection line power control is built on the basis of the indexes of reliability and economy, and the solution is carried out through the MCS-PSO. Due to the fact that generation and load prediction information in microgrids is constantly updated as time goes by, dynamic optimization scheduling updated in an online-rolling mode is adopted so as to improve the precision of a scheduling plane. According to the nearby-island multi-microgrid dynamic scheduling method based on the MCS-PSO, by the combination of the reality of interconnection operation of multiple nearby islands, energy of the microgrid of each island can be reasonably scheduled and distributed, various uncertainty factors are fully taken into account, and the running cost and loss can be reduced to the minimum.
Description
technical field [0001] The invention belongs to the technical field of electric power systems, and in particular relates to a dynamic scheduling method for adjacent islands with multiple microgrids based on MCS-PSO. Background technique [0002] The development of distributed generation and microgrid technology provides new ideas for solving power supply problems in remote areas in my country. The development of microgrid can not only effectively develop and utilize local renewable energy, but also solve the problem of power supply in remote areas. For the isolated microgrid without main grid support, due to the volatility and randomness of wind and solar resources, it is necessary to rely on the energy storage system to maintain the balance between power generation and load, and its power supply reliability is limited by its own adjustment capability. [0003] The interconnected operation of large power grid regions can supply power to each other and serve as backup for ea...
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IPC IPC(8): H02J3/46G06F19/00
CPCY02E40/70Y04S10/50
Inventor 吴浩周永智李怡宁
Owner ZHEJIANG UNIV