Multi-microgrid autonomous coordination multi-level optimization scheduling method based on SoS architecture
A multi-microgrid and optimized dispatching technology, applied to AC networks, electrical components, circuit devices, etc. with energy trade/energy transmission authority, to achieve the effect of ensuring quality of life, toughness, and power supply maximization
Pending Publication Date: 2022-06-21
NANJING UNIV OF POSTS & TELECOMM
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In the context of my country's energy transformation, renewable energy power generation, such as wind power and photovoltaics, is widely connected to the power grid in a centralized or decentralized form, and its output volatility, intermittent and randomness have brought challenges to the safe operation of the power grid
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[0063] Below in conjunction with accompanying drawing, technical scheme of the present invention is further described:
[0064] The invention proposes a multi-level optimal scheduling method for autonomous coordination of multiple microgrids based on the SoS architecture, such as figure 1 , 4 shown, including the following steps:
[0065] Step 1. When a partial power failure occurs in the distribution network, a multi-microgrid system composed of multiple household microgrids is obtained under the SoS architecture.
[0066] SoS (system of systems) refers to a system that consists of a large number of independent functions and interactive operations in order to complete a specific mission or task, and forms a brand-new system according to certain constraints. Under the SoS architecture, multiple subsystems can form a new system with some consistent purpose, and operate together under the new system to achieve better functions than the subsystems run individually. like figu...
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The invention discloses a multi-micro-grid autonomous coordination multi-level optimization scheduling method based on an SoS architecture, and the method comprises the steps: carrying out the scheduling calculation of each household type micro-grid in a scheduling time period through employing an autonomous optimization scheduling objective function of the household type micro-grid in a first stage when a local power failure occurs in a power distribution network; in the second stage, according to the reported micro-grid information, performing global centralized scheduling on all household micro-grids in the multi-micro-grid system by using a global coordination optimization layer scheduling objective function of the multi-micro-grid system to obtain energy mutual aid arrangement of each household micro-grid in the next scheduling period; and performing double-layer energy optimization scheduling management on the household micro-grid and the multi-micro-grid system by using a two-stage rolling optimization scheduling method until the end of an extreme condition. According to the invention, energy in the power distribution network can be reasonably arranged and used when an extreme condition occurs in the power distribution network, the energy utilization rate is improved, and the reduction quantity of the load in the extreme environment is reduced.
Description
technical field [0001] The invention relates to a multi-microgrid autonomous coordination and multi-level optimal scheduling method based on SoS architecture, and belongs to the technical field of economic scheduling of integrated energy systems. Background technique [0002] Since the 21st century, my country's power grid has developed rapidly, showing the characteristics of high proportion of renewable energy and high proportion of power electronic equipment access, load diversification, and high integration of information and physical systems. In the context of my country's energy transition, renewable energy power generation, such as wind power, photovoltaics, etc., is widely connected to the grid in a centralized or decentralized form, and the volatility, intermittency and randomness of its output pose challenges to the safe operation of the grid. On the load side, the decentralized access of distributed generation, the rise of regional integrated energy systems, the ac...
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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06H02J3/00H02J3/32H02J3/38H02J3/46
CPCH02J3/00H02J3/466H02J3/008H02J3/381H02J3/32G06Q10/04G06Q10/06312G06Q10/06313G06Q50/06H02J2203/10H02J2203/20H02J2300/24H02J2300/28H02J2300/40
Inventor 窦春霞宋浩迪岳东张占强张智俊王辉
Owner NANJING UNIV OF POSTS & TELECOMM