Power reserve control method and system based on photovoltaic system
A photovoltaic system and control method technology, applied in photovoltaic power generation, control/regulation systems, instruments, etc., can solve problems such as the inability to determine the disturbance direction and duty cycle of the photovoltaic system
Active Publication Date: 2021-08-20
XIAN JIAOTONG LIVERPOOL UNIV
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] This application provides a photovoltaic system-based power reserve control method and system, which can solve the problem that the existing power reserve control method cannot determine the subsequent disturbance direction and duty cycle of the photovoltaic system
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0040] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following examples are intended to illustrate the present application, but not to limit the scope of the present application.
[0041] figure 1 It is a schematic structural diagram of a power reserve control system based on a photovoltaic system according to an embodiment of this application, such as figure 1 As shown, the system includes at least: photovoltaic module 110, power converter 120, voltage acquisition assembly 130, current collecting assembly 140, controller 150, and load 160.
[0042] The photovoltaic module 110 is used to convert solar energy into electrical energy based on the photovoltaic effect. Alternatively, the photovoltaic module 110 is composed of a plurality of silicon solar cells. The photovoltaic module 110 is connected to the load 160 via the power converter 120.
[0043] The power converter 120 is used to implement energy transmission between the photovoltaic module and the load. The power con...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
This application relates to a power reserve control method and system based on a photovoltaic system, which belongs to the field of photovoltaic power generation technology. The method includes: obtaining the current output voltage and current output current of the photovoltaic module; In the tracking mode, the maximum power point tracking is carried out so that the photovoltaic module works at the maximum power point; when the operating mode of the photovoltaic system is the power reserve control mode, the photovoltaic module is controlled to work in the constant current region; in the photovoltaic reserve When the power reaches the preset value, adjust the subsequent disturbance direction and duty cycle of the photovoltaic module according to the difference between the current output power and the reduced output power; it can solve the problem that the existing power reserve control method cannot determine the subsequent disturbance direction of the photovoltaic system and duty cycle; it provides a way to determine the subsequent disturbance direction and duty cycle of the photovoltaic system.
Description
Technical field [0001] The present application relates to a power reserve control method and system based on a photovoltaic system, belonging to the field of photovoltaic power generation. Background technique [0002] Photovoltaic (PV) system is a new power generation system for converting solar energy into electrical energy using a photovoltaic effect using solar cell semiconductor materials. Since the photovoltaic power generation equipment does not have a rotating component, the main power disturbance device cannot provide inertial response in the PV system, so system inertia and frequency regulation capability are lowered. Based on this, the algorithm of the power grid frequency frequency and power smoothing output is proposed by the photovoltaic system itself, that is, the PowerReserve Control, PRC) algorithm. [0003] The present invention "new photovoltaic reserve power control method" disclosed is a photovoltaic reserve power control method that can accurately predict th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/67
CPCG05F1/67Y02E10/56
Inventor 朱殷晓文辉清
Owner XIAN JIAOTONG LIVERPOOL UNIV