Harmonic limit value distribution method for wind power and photovoltaic power generation grid connection

A technology of photovoltaic power generation and distribution method, which is applied in the fields of electrical digital data processing, instruments, computer-aided design, etc., can solve the problems of harmonic superposition coefficient and inappropriate simultaneous coefficient, and achieve energy saving, emission reduction, environmental protection, and comprehensive factors. , the effect achieved by the access method

Pending Publication Date: 2020-04-10
PANZHIHUA POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER
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Problems solved by technology

[0003] The purpose of the present invention is to provide a harmonic limit distribution method for wind power and photovoltaic power grid-connected to solve the problem that the harmonic superposition coefficient and simultaneity coefficient stipulated in the prior art in terms of harmonic limit distribution are not suitable for wind power and solar photovoltaic power generation The problem of grid connection, realize the stable grid connection of wind power and solar photovoltaic power generation, and improve the operability of new energy utilization

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  • Harmonic limit value distribution method for wind power and photovoltaic power generation grid connection
  • Harmonic limit value distribution method for wind power and photovoltaic power generation grid connection
  • Harmonic limit value distribution method for wind power and photovoltaic power generation grid connection

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[0032] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings. As a limitation of the present invention.

[0033] The harmonic limit allocation method for wind power and photovoltaic power grid connection is carried out in accordance with the following steps:

[0034] 1. Propose the harmonic distribution and statistical characteristics of wind farms and photovoltaic power stations at grid-connected points

[0035] The non-parametric estimation method based on kernel estimation is used to realize the calculation of the probability distribution of wind power and photovoltaic power generation harmonics; the calculation of the statistical characteristics of wind power and photovoltaic power generation harmonics is realized based on the important sampling Monte Carlo method.

[0036] In the Monte Carlo method based o...

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Abstract

The invention discloses a harmonic limit value distribution method for wind power and photovoltaic power generation grid connection. The method comprises the following steps: (a) calculating harmonicdistribution rules and statistical characteristics of a wind power plant and a photovoltaic power station at a grid connection point; (b) calculating a harmonic superposition coefficient; and (c) deriving a simultaneous coefficient applicable to wind power and photovoltaic power generation. The invention aims to provide the harmonic limit value distribution method for wind power and photovoltaic power generation grid connection, so the problem that the harmonic superposition coefficient and the harmonic coincidence coefficient specified in the aspect of harmonic limit value distribution are not applicable to wind power and solar photovoltaic power generation grid connection in the prior art is solved; stable grid connection of wind power and solar photovoltaic power generation is achieved;and the operability of new energy utilization is improved.

Description

technical field [0001] The invention relates to the field of new energy power generation, in particular to a harmonic limit distribution method for grid-connected wind power and photovoltaic power generation. Background technique [0002] Among the many renewable energy and new energy technology developments, wind energy and solar energy have the greatest potential and the most development value. They are an inexhaustible source of renewable energy. Wind power is an environmentally friendly, mature technology, high reliability, low cost and significant economies of scale, and is the fastest growing new energy source. Wind power generation and solar power generation have opposite energy changes and can form energy complementarity, so the two can form a joint power supply system. For new energy grid connection, the harmonic superposition coefficient and simultaneity coefficient stipulated in the harmonic limit distribution in the national standard and the "Electromagnetic Co...

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Application Information

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IPC IPC(8): G06F30/20G06F113/06G06F113/04
Inventor 赵建强陈长清王海涛
Owner PANZHIHUA POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER
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