A controllable virtual inertial control method of an optical storage system with a super capacitor
A supercapacitor, virtual inertia technology, applied in the field of signal processing, can solve problems such as lack of mechanical rotational inertia, affecting system stability, and reducing system inertia.
Active Publication Date: 2018-12-28
WUHAN UNIV
View PDF6 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Since energy storage devices such as photovoltaics and supercapacitors are static components, they are usually connected to the grid by power electronic converters. Although they have a fast response speed, they do not have mechanical moments of inertia, which reduces the inertia of the system and affects the stability of the system. However, there is still a lack of theoretical support and practical methods for the inertial control of photovoltaic storage power generation systems containing supercapacitors.
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
[0058] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.
[0059] figure 1 It is a flow chart of the method of the present invention, and the simulation topology of the embodiment of the present invention is as follows figure 2 shown. The DC / DC converter on the photovoltaic cell side is connected in parallel with the DC / DC converter on the supercapacitor side, and is connected to the B2 bus through the DC / AC grid-connected inverter. During normal operation, the photovoltaic cell is in the state of maximum power tracking. To simplify the analysis, assume that the radiation intensity is 800w / m 2 . The present inv...
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
The invention discloses a controllable virtual inertial control method of an optical storage system with a super capacitor. The invention calculates the frequency variation of the photovoltaic energystorage power generation system and collects the charged state of the super capacitor. If the frequency variation of the photovoltaic storage power generation system is not equal to zero and the frequency of the real-time photovoltaic storage power generation system is less than the grid frequency, the virtual inertial control is carried out under the condition that the inertial parameter of the first super capacitor is not equal to zero; and if the frequency variation of the photovoltaic storage power generation system is not equal to zero, the virtual inertial control is carried out. If thefrequency variation of the photovoltaic storage power generation system is not equal to zero and the frequency of the real-time photovoltaic storage power generation system is greater than or equal tothe grid frequency, the virtual inertial control is carried out under the condition that the inertial parameter of the second super capacitor is not equal to zero. The invention has the advantages that the virtual inertia of the supercapacitor is flexible and adjustable and the system provides timely inertia support.
Description
technical field [0001] The invention relates to the technical field of signal processing, in particular to a radar reference signal extraction method based on blind adaptive oblique projection. [0002] The invention belongs to the field of photovoltaic power generation methods, and relates to a virtual inertia control method for a power generation system, in particular to a controllable virtual inertia control method for an optical storage system containing a supercapacitor. Background technique [0003] New energy power generation has the advantages of saving investment, flexible power generation methods, and environmental compatibility. Its large-scale development and utilization have become an important choice for the sustainable development of global energy-economy-environment. Among them, the penetration rate of photovoltaics and energy storage is also increasing year by year, and the safe and stable operation of the power system will face more new challenges. Since e...
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 IPC IPC(8): H02J3/38H02J3/32
CPCH02J3/383H02J3/32Y02E10/56Y02E70/30
Inventor 胡志坚杨黎
Owner WUHAN UNIV