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A control system for a power plant

A technology for power plants and controllers, applied in general control systems, control/regulation systems, photovoltaic power generation, etc., to solve problems such as reducing the overall output of photovoltaic arrays and power plants

Pending Publication Date: 2021-06-04
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The speed at which the rotor blades rotate around the nacelle causes shadows from the rotor blades to pass quickly across the PV modules, giving MPPT no time to react
Therefore, the shaded PV modules interfere with the maximum power point tracking algorithm, reducing the overall output of the PV array and plant

Method used

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  • A control system for a power plant
  • A control system for a power plant
  • A control system for a power plant

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Embodiment Construction

[0030] In the following detailed description, reference is made to the accompanying drawings which form a part hereof and which illustrate specific embodiments of the invention. These embodiments are described in sufficient detail to enable those of ordinary skill in the art to make and use them.

[0031] figure 1 The basic architecture of a power plant 10 is shown in which a wind turbine generator (often more commonly referred to as wind turbine 12 ) and a plurality of solar generators 14 in the form of photovoltaic (PV) modules are electrically connected via a converter 16 to the local electricity network 18 of the power plant 10 . Several solar generators 14 are arranged in shaded areas of the power plant 10 , which means that at least one solar generator 14 may be shaded by a blade of a wind turbine 12 during operation of the power plant 10 . In one embodiment of the invention, the timing at which the blades of wind turbine 12 pass through the shadow caused by solar gene...

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Abstract

A controller for controlling the operation of a power plant (10), the power plant (10) comprising a wind turbine (12) and a solar power generator (14), the controller (22) comprising: an input (36) arranged to receive an input signal (62) indicative of an operating parameter of the solar power generator (14); a shadow detection module (38) arranged to monitor the operating parameter and to detect a shadow (50) at least partially shading the solar power generator (14), the detected shadow being caused by a blade (30) of the wind turbine (12); a shadow prediction module (40) arranged to predict at least one subsequent blade shadow in dependence on the detected blade shadow; a command module (42) arranged to determine a command signal (70) for controlling the solar power generator (14) based on the blade shadow prediction; and an output (44) arranged to output the command signal (70) to the solar power generator (14).

Description

technical field [0001] The invention relates to a controller for a power plant including wind turbine generators and solar generators. The invention also relates to a method of controlling a power plant and to a power plant comprising a wind turbine generator and a solar generator. Background technique [0002] It is known to construct power plants that include wind and solar power systems. Such "hybrid" power plants typically include multiple generation sites, and the electricity generated at the multiple generation sites is typically delivered to the desired location or grid at one or more locations. A typical power plant layout includes wind turbine generators arranged with multiple solar generators. [0003] Solar generators can be photovoltaic (PV) modules or panels that are arranged together to form an array. The photovoltaic modules are connected to a converter (or inverter) that converts direct current (DC) power from the photovoltaic modules to alternating curren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S50/00F03D1/00
CPCH02S50/00F03D9/007F03D80/20Y02E10/72Y02E10/56Y02E10/76H02J2300/28H02J2300/26H02J13/00002F05B2220/708G05B13/024G05B13/026H02J3/381H02J3/46
Inventor C·T·彼泽森T·G·霍夫高
Owner VESTAS WIND SYST AS