Photovoltaic solar one-stop grid-connected detection system
A photovoltaic solar energy and photovoltaic power station technology, applied in the field of photovoltaic solar energy one-stop grid-connected detection system, detection system, and response capability detection system, can solve the problem of prolonging the detection cycle, increasing detection costs, and difficulty in connecting photovoltaic power stations to the grid Detection and other issues to achieve the effect of verifying grid-connected performance
Active Publication Date: 2017-06-20
STATE GRID CORP OF CHINA +1
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] At present, domestic and foreign testing work on grid-connected photovoltaics is mainly aimed at the individual testing of a single technical index. It is difficult to complete all the grid-connected testing of a photovoltaic power station at one time, which increases testing costs and prolongs the testing cycle.
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
[0042] Such as figure 1 As shown, the present invention provides a photovoltaic solar energy one-stop grid-connected detection system. During the test, the detection system is connected in series between the grid-connected inverter and the step-up transformer, and the equipment is powered on through the switch S1, and S2 and S3 are respectively For the bypass switch of the voltage drop device and the grid disturbance device, it is enough to disconnect the corresponding bypass switch during the test, and the adjustable load RLC is connected to the system through the switch S4.
[0043] The invention can complete the voltage / frequency response characteristics, anti-islanding protection characteristics, power output characteristics, active / reactive power control capability, low voltage ride-through capability and power quality test of the photovoltaic power station at one time, so as to verify the grid-connected performance of the photovoltaic power station the goal of. The main...
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 belongs to the field of electric power technology, and in particular relates to a one-stop grid-connected detection system for photovoltaic solar energy, specifically a detection system for the response capability of a photovoltaic power station when it is in normal operation or when the power grid is abnormal, and is a photovoltaic power station for national requirements A detection system designed for grid-connected capability testing. In the present invention, the detection system is connected in series between the grid-connected inverter and the step-up transformer, and the equipment is powered on through the switch S1, and S2 and S3 are the bypass switches of the voltage drop device and the grid disturbance device respectively, and the corresponding switches are disconnected during the test. The bypass switch and the adjustable load RLC are connected to the system through the switch S4. The invention can use the device to complete all grid-connected detection contents of the photovoltaic power station and the power generation system. It can complete the voltage / frequency response characteristics, anti-islanding protection characteristics, power output characteristics, active / reactive power control capability, low voltage ride-through capability and power quality tests of photovoltaic power stations at one time, so as to verify the grid-connected performance of photovoltaic power stations. Purpose.
Description
technical field [0001] The invention belongs to the field of electric power technology, and in particular relates to a one-stop grid-connected detection system for photovoltaic solar energy, specifically a detection system for the response capability of a photovoltaic power station when it is in normal operation or when the power grid is abnormal, and is a photovoltaic power station for national requirements A detection system designed for grid-connected capability testing. Background technique [0002] In view of the current situation that domestic solar photovoltaic power stations are widely connected to the power grid, in order to promote the coordinated development of solar power generation and power grids, the State Grid Corporation of China has issued the latest "Technical Regulations for Connecting Photovoltaic Power Stations to Power Systems" and "Technology for Connecting Photovoltaic Power Generation Systems to Distribution Networks". "Regulations", the regulations...
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): G01R31/00
Inventor 谢赐戬王刚戈阳阳李胜辉赵清松张冠锋
Owner STATE GRID CORP OF CHINA