Optimization method for water-wind-solar power supply capacity configuration in microgrid

A technology of power supply capacity and optimization method, which is applied in the direction of single-network parallel feeding arrangement, etc., and can solve problems such as difficulty in satisfying the applicability, practicability and applicability of calculation methods

Active Publication Date: 2020-01-17
GUANGDONG UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

It can be seen that the existing technologies for calculating the power generation, generation capacity and installed capacity of the microgrid distributed power system do not fully consider the uncertainty and randomness of the influencing factors, and the applicability, practicability and applicability of the calculation methods are also difficult to satisfy.

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  • Optimization method for water-wind-solar power supply capacity configuration in microgrid
  • Optimization method for water-wind-solar power supply capacity configuration in microgrid
  • Optimization method for water-wind-solar power supply capacity configuration in microgrid

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Embodiment Construction

[0065] The present invention will be further described below in conjunction with specific embodiment:

[0066] Such as figure 1 As shown, the method for optimizing the capacity allocation of hydro-wind-solar power sources in the microgrid described in this embodiment includes the following steps:

[0067] S1. Build the data matrix:

[0068]Obtain the multi-year daily runoff, inflow, inflow, outflow, and flood peak flow data of the hydropower station watershed in the microgrid from the historical and real-time data sets for many years, and construct the hydropower station data matrix through processing, calculation and analysis:

[0069]

[0070] x Hi1 、x Hi2 、x Hi3 、x Hi4 、x Hi5 They are the multi-year daily diameter flow, incoming water flow, inflow flow, outflow flow, and flood peak flow in the hydropower station watershed in the microgrid. The units are: cubic meter, cubic meter, cubic meter / second, cubic meter / second, cubic meter / seconds; the number of data samp...

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Abstract

The invention discloses an optimization method for the water-wind-solar power supply capacity configuration in a microgrid. The method comprises the steps of calculating the power supply capacity configuration of in the water-wind-solar microgrid, reflecting the randomness of the changes of storage flow, wind speed and sunlight intensity for many years; meanwhile, reflecting the uncertainty and randomness of the sunshine duration, sunshine shadow, sunshine deflection angle and the like, so that the theoretical guidance is provided for the power capacity configuration, power generation output prediction and operation scheduling of the water-wind-solar microgrid, and the necessary technical support is provided for the distributed new energy power generation and the intelligent power grid scheduling operation.

Description

technical field [0001] The invention relates to the technical field of electric power systems and automation thereof, and in particular to an optimization method for capacity allocation of water, wind and wind power sources in microgrids. Background technique [0002] A microgrid is a grid form that integrates distributed sources (hydropower, small wind power, photovoltaic power generation)-loads (water, electricity, gas, cooling, and heat loads) in a certain way. The microgrid is connected to the main grid at voltage levels such as 380V, 10kV, and 35kV. Under normal operating conditions, it operates in parallel with the main grid. Under heavy load, the microgrid absorbs power from the main grid, and may inject power into the main grid under light load. Power: In the case of a partial fault in the main grid or in the case of a fault in an adjacent micro-grid, it can operate in an isolated grid. Under the premise of ensuring power quality, the internal distributed power suppl...

Claims

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Application Information

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IPC IPC(8): H02J3/46
CPCH02J3/46Y02E10/76
Inventor 吴杰康
Owner GUANGDONG UNIV OF TECH
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