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Microgrid optimization scheduling method based on improved imperialist competitive algorithm

A technology for optimal scheduling and micro-grid, which can be used in computing, circuit devices, complex mathematical operations, etc., and can solve problems such as low precision and slow convergence speed.

Pending Publication Date: 2019-07-12
NANJING INST OF TECH
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Problems solved by technology

In addition, for the selection of intelligent algorithms, particle swarm algorithm or genetic algorithm was basically used in the past, which has slow convergence speed and low precision.

Method used

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  • Microgrid optimization scheduling method based on improved imperialist competitive algorithm
  • Microgrid optimization scheduling method based on improved imperialist competitive algorithm
  • Microgrid optimization scheduling method based on improved imperialist competitive algorithm

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Embodiment Construction

[0090] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0091] A microgrid optimal scheduling method based on the improved imperial competition algorithm, including the following steps:

[0092] Step 1: Determine the characteristics of the energy storage device and energy supply device in the selected microgrid, and predict the power generation of photovoltaic cells, wind power and load;

[0093] The energy supply device in the microgrid includes a fan, a photovoltaic cell, a gas turbine, and a fuel cell, and the energy storage device includes a battery; the photovoltaic cell is provided with a thermoelectric battery using solar energy, and the thermoelectric battery is only put into use in summer;

[0094] 1.1) The characteristics of the fan include:

[0095] The probability density function of wind speed obtained by using the Wimbledon distribution function is as follows:

[0096]

[0097]In the formu...

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Abstract

The invention discloses a microgrid optimization scheduling method based on an improved imperialist competitive algorithm. The method comprises the steps of: determining features of energy storage devices and energy supply devices in a selected microgrid, predicting the generated energy of a photovoltaic cell, the generated energy of a fan and a load capacity; for the load features of different seasons, establishing the total cost of operation of a target function--microgrid for optimization of a scheduling scheme, determining the constraint conditions of the energy storage and energy supply devices, and forming an optimal scheduling model by constraint conditions and the target function; taking the predicted electricity output quantity of the photovoltaic cell and the fan as input, and atthe same time inputting the predicted load capacity and the constraint conditions to take the target function as the fitness of each country, and solving the optimal scheduling scheme of the optimalscheduling model through adoption of the improved imperialist competitive algorithm. According to the load features of different seasons, a seasonal scheduling scheme is provided, an optimal scheduling scheme of an optimal scheduling model is obtained through adoption of an improved imperialist competitive algorithm, and the convergence speed and the calculation precision are effectively improved.

Description

technical field [0001] The invention relates to a micro-grid optimal dispatch method, in particular to a micro-grid optimal dispatch method based on an improved imperial competition algorithm, belonging to the field of distribution network optimal dispatch. Background technique [0002] The microgrid is a supplement to the large power grid, and it is a power network system that integrates power generation and energy storage. When the micro-grid is connected to the grid, the micro-grid scheduling is to use the intelligent algorithm to select the best output plan, and on the premise of meeting the load requirements, allocate the output of each power generation and energy storage device to interact with the power of the large grid to achieve the lowest economic cost , minimum environmental pollution and other goals. When the microgrid is operating in an isolated state, microgrid dispatching is to control the output of each power generation and energy storage device in the micr...

Claims

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Application Information

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IPC IPC(8): H02J3/46G06F17/18G06Q10/04G06Q10/06G06Q50/06
CPCH02J3/46G06F17/18G06Q10/04G06Q10/0631G06Q50/06H02J2203/20Y04S10/50
Inventor 周磊董学育朱建忠葛鹏张森
Owner NANJING INST OF TECH
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