A Microgrid Energy Optimization Method Based on Market Equilibrium Mechanism

An energy optimization and micro-grid technology, applied in the communication network with energy trade/energy transmission authority, energy industry, communication network circuit, etc., can solve the problem of excessive calculation, weak privacy protection, poor openness and expandability To achieve the effect of guaranteeing privacy information, simple and intuitive principle, and strong expansibility

Active Publication Date: 2020-01-10
上海枫昱能源科技有限公司
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Problems solved by technology

[0011] The purpose of the present invention is to provide a micro-grid energy optimization based on a market equilibrium mechanism in order to overcome the shortcomings of excessive calculation, poor openness and expandability, and weak privacy protection in the centralized micro-grid energy optimization method method, which has the advantages of small amount of calculation, convenient unified modeling, high privacy protection, and strong scalability.

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  • A Microgrid Energy Optimization Method Based on Market Equilibrium Mechanism
  • A Microgrid Energy Optimization Method Based on Market Equilibrium Mechanism
  • A Microgrid Energy Optimization Method Based on Market Equilibrium Mechanism

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[0115] The entire optimization period is 24 hours, and it is divided into 48 optimization cycles. The basic load of the microgrid is the load that has no electricity price response capability and must be satisfied, and its daily load forecast curve is as follows: Figure 5 shown. The output forecast curve of renewable energy is as follows: Image 6 shown.

[0116] The microgrid operates in grid-connected mode and is connected to the main grid through a tie line. The electricity price of the main grid adopts a three-stage ladder price, as shown in Table 1. The physical limit of tie-line power is -200kW~900kW (negative numbers indicate electricity sales to the grid, positive numbers indicate electricity purchases from the grid). The parameters of two different diesel generators are shown in Table 2, and the price of diesel is 5.5 yuan / L. The parameters of the battery are shown in Table 3. The translational load parameters are shown in Table 4.

[0117] Table 1 Main grid e...

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Abstract

The invention relates to a market equilibrium mechanism based micro-network energy optimization method, in which a local market is established in a micro-network, and performs clearing based on a market equilibrium mechanism. According to the invention, the distributed power supply, the translatable load, the energy storage and other generalized demand side resources in the micro-network can be designed with their own autonomous bidding strategies to bid by fully utilizing their required flexibility. Consequently, the energy optimization goal for micro-network operations can be realized. In comparison with the prior art, the method requires less computation. The method is convenient for unified modeling, is highly privacy protective and has good expansibility.

Description

technical field [0001] The invention relates to micro-grid energy optimization in a power system, in particular to a micro-grid energy optimization method based on a market equilibrium mechanism. Background technique [0002] Micro-grid refers to a small power generation and distribution system composed of distributed generation (distributed generation, DG), energy storage device, energy conversion device, load and corresponding monitoring and protection devices, which can solve the problem of DG The problem of grid connection can also realize the flexible and efficient application of DG. With the increasingly prominent energy and environmental issues, DG, represented by photovoltaic power generation and wind power generation, is being studied more and more extensively due to its high energy utilization efficiency and low environmental negative impact, so microgrid has become a hot topic. research areas of interest. The energy optimization technology of the microgrid is an...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/008H02J2203/20Y02P80/14
Inventor 季珉杰张沛超黄宏声黄凤仪
Owner 上海枫昱能源科技有限公司
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