Focus on power quality management for 17 yearsProvide integrated solutions
New Energy Grid Connected Detection
If the goal of carbon neutrality is to be achieved in 2060, China's electricity demand will more than triple, and it is expected to exceed 20 trillion kwh. If calculated according to the annual power generation hours of 2000 hours, there will be about 10 billion kilowatts of new energy installed capacity.
At the general debate of the 75th UN General Assembly, China made it clear that it should adopt more favorable policies and measures, strive to reach the peak of carbon dioxide emissions by 2030, and strive to achieve carbon neutrality by 2060.
Driven by the background, new energy power stations have sprung up to benefit human beings, protect the environment and reduce carbon emissions. However, equipment performance, construction technology, power quality and islanding response in grid connection acceptance have also become the key problems of power station operation.
Acceptance case of poverty alleviation photovoltaic power station grid connection
In this test project, 10 village level power stations were selected, 53 photovoltaic series insulation resistance performance, 57 photovoltaic panel grounding continuity, 157 photovoltaic panel appearance inspection and infrared scanning were tested, 10 photovoltaic panels were selected for El test, 12 grid connected inverters were selected to test the power quality of their output end and 0.4kV grid connection point, and 11 grid connected inverters were selected to test their conversion efficiency .
The test results show that the main problems are hot spots and shadow cracks;
Part of the site water does not meet the relevant national standards.
The daily power generation and irradiance of photovoltaic power station are counted, and the generation efficiency is calculated to provide customers with reference. It points out the direction for the customers to carry out the project rectification, and also has the bottom in mind for the future power station income.
Power quality test of charging station access
According to the operation and acceptance requirements of new energy vehicle charging station, the power quality test is carried out to detect whether there are power quality problems in each parallel network under the trial operation state.
Recover the accident capacitor and detect the power quality of the access point of the compensation capacitor,The operation condition of the capacitor is tested by group switching mode, and the capacitor samples are sent for test.
According to the field test data evaluation, the power quality test data (frequency, total harmonic voltage distortion rate, 2-25th harmonic voltage distortion rate, voltage three-phase imbalance) of 0.4kV incoming line of charging station meet the requirements of national standard.
