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System and method for coordinated operation of pumped storage and renewable energy power generation

A renewable energy and pumped storage power station technology, applied in wind power generation, energy storage, photovoltaic power generation, etc., can solve the problems of improving prediction accuracy, difficulty, and diminishing effect of accuracy improvement, so as to suppress output fluctuations, restrain fluctuations, improve Effects of System Economics and Stability

Active Publication Date: 2020-07-31
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, from the perspective of the development trend of forecasting technology, the effect of improving accuracy based on data accumulation is gradually declining, and it is difficult to increase the forecasting accuracy in the short term.

Method used

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  • System and method for coordinated operation of pumped storage and renewable energy power generation
  • System and method for coordinated operation of pumped storage and renewable energy power generation
  • System and method for coordinated operation of pumped storage and renewable energy power generation

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless otherwise specified, all technical and scientific terms used in this embodiment have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0033] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and...

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Abstract

The invention discloses a pumped storage and renewable energy power generation cooperated operation system and method. An AC power grid, an offshore wind power plant, a photovoltaic power station anda pumped storage power station form a four-end ring network structure, the AC power grid, the offshore wind power plant and the pumped storage power station are connected with one another via voltagesource type converter based converter stations respectively, the photovoltaic power station is connected to the ring network structure via a DC-DC converter, and thus, electric energy emitted by the offshore wind power plant and the photovoltaic power station is gathered and transmitted to the AC power grid. Renewable energy can be gathered, transmitted and consumed in large scale, and before thata large-scale renewable energy power generation system realizes grid connection via a DC power transmission system, deviation between practical output and predicted output is reduced, output fluctuation is inhibited, and influence of output fluctuation of renewable energy on the system stability is reduced.

Description

technical field [0001] The invention belongs to the field of flexible direct current transmission control operation, in particular to a system and method for coordinated operation of pumped storage energy and renewable energy power generation based on flexible direct current transmission. Background technique [0002] With the increasing emphasis on environmental protection and greenhouse gas emissions, global energy consumption is shifting from fossil energy to renewable clean energy. In recent years, the installed capacity of renewable energy represented by wind power and photovoltaics has shown steady growth. Compared with traditional power generation methods, renewable energy represented by wind power and photovoltaics has the characteristics of intermittency and volatility. Large-scale grid-connected renewable energy can easily bring problems such as voltage fluctuations, voltage flicker and harmonics to the system, reducing power quality and system safety and stabilit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/28H02J3/38H02J3/24H02J3/36
CPCH02J3/24H02J3/28H02J3/36H02J3/383H02J3/386Y02E10/56Y02E10/76Y02E60/60Y02E70/30
Inventor 李可军孙凯祺刘智杰王美岩王卓迪
Owner SHANDONG UNIV
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