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A control method for fully hydraulic wind-tidal hybrid power generation equipment

A hybrid power generation and control method technology, which is applied in the control of wind turbines, wind power generation, engine control, etc., can solve the problems of complex and changeable operating conditions, expensive maintenance costs, high occurrence of mechanical failures, etc., and achieve the goal of improving energy utilization efficiency Effect

Active Publication Date: 2019-06-18
XIAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a control method for fully hydraulic wind-tidal hybrid power generation equipment, which solves the problems of complex and changeable operating conditions in the structural characteristics, control methods and the matching of the two in the prior art wind power generating set. High incidence of mechanical failures and high maintenance costs

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  • A control method for fully hydraulic wind-tidal hybrid power generation equipment
  • A control method for fully hydraulic wind-tidal hybrid power generation equipment
  • A control method for fully hydraulic wind-tidal hybrid power generation equipment

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0026] Reference figure 1 , figure 2 The structure of the present invention is to include a wind energy collector 1 and a tidal energy collector 3. The wind energy collector 1 includes a wind impeller, an electric pitch controller 21, a rotational speed torque sensor 22, and an anemometer. The energy collector 3 is composed of a tidal impeller, an electric pitch controller 223, a speed torque sensor 224, and a flow direction meter; the wind impeller and the variable pump 19 are coaxially rigidly connected, and the variable pump 19 is provided with its own Variable displacement mechanism 1 2; tidal impeller and variable pump 2 4 are coaxially rigidly connected, variable pump 2 4 is provided with its own variable displacement mechanism 2 6; variable pump 2 4 inlet end is connected to the water tank through filter 5, variable pump The outlet end of the second 4 ...

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Abstract

The invention discloses a control method for a full-hydraulic wind-tide hybrid power generator. The method comprises the following control modes that (1) electric pitch control is conducted, a reference voltage value at a rated wind speed is set in a fuzzy PID algorithm preset in a central control unit, a voltage signal of real-time wind speed fed back by an anemorumbometer is compared with the reference voltage value, whether electric pitch operation of pneumatic impellers needs to be conducted or not is decided, and a tide impeller adopts the same control method; (2) rotary speed signals of a first rotary speed torque sensor on a wind energy collector and a second rotary speed torque sensor on a tide energy collector and displacement signals of two variable pumps are input into the central control unit and handled through the fuzzy PID algorithm, and the opening degree of a flow divider is controlled according to the handling results; (3) best power tracking control is conducted; and (4) the hydraulic system pressure is adjusted and controlled. Through the method, control is flexible, the reliability is high, and the power generation efficiency is high.

Description

Technical field [0001] The invention belongs to the technical field of hybrid power generation control, and relates to a control method of a fully hydraulic wind-tidal hybrid power generation device. Background technique [0002] Offshore wind power has the advantages of huge energy reserves, sustained resource stability, and low environmental impact. Compared with onshore wind power, it has the advantages of high wind speed, low wind shear, low turbulence, high output and long service life. However, the complex and changeable operating conditions of offshore wind turbines, high mechanical failure rate, and expensive maintenance costs have become obstacles restricting the development of offshore wind power. [0003] Traditional wind turbines mainly include doubly-fed and direct-drive. However, the two types of wind turbines have many problems in terms of structural characteristics, control methods and the matching of the two. Compared with the traditional double-fed and direct-dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/04F03B15/00
CPCF03B15/00F03D7/0224F03D7/04F05B2270/506F05B2270/604F05B2270/707Y02E10/20Y02E10/72
Inventor 穆安乐刘斌樊亚军杨建湘万强强许建国
Owner XIAN UNIV OF TECH
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