SOROTEC UPS

The solar power generation system should have high reliability and security, as an important part of the solar power generation system, the inverter should have the following protection function. 1.Input under voltage protection. When the input voltage is lower than the specified under voltage value, that is less than 85% of the rated voltage, the  solar energy inverters  should be able to automatically shut down to protect and make the corresponding display. 2.Input over voltage protection. When the input voltage is higher than the prescribed over voltage disconnect value, which is higher than the rated voltage of 130%, the inverter should be able to automatically shut down to protect and make the corresponding display. 3.Over current protection. Over current protection of the solar energy inverters, it should be able to ensure that act timely when the load short circuit or current exceeds the allowable value, so that it can avoid the damage of the current. When the operat...

Solar energy inverter efficiency refers to the demand for renewable energy, solar inverter market is growing. These inverters require extremely high efficiency and reliability. The power circuit used in the inverter is investigated, and the best choice for the switch and rectifier is recommended. The solar light is irradiated on the solar module connected in series, and each module contains a series of solar cells. The solar module generates a direct current voltage at an order of magnitude of several hundred volts, depending on the light condition of the module array, the temperature of the battery, and the number of modules connected in series. The primary function of this type of solar energy inverter is to convert the input DC voltage to a stable value. This feature is achieved through a boost converter and requires a boost switch and a boost diode. In the first structure, the boost stage is followed by an isolated full bridge converter which is to provide isolation. The output...

The control strategy of grid connected solar inverter is the key to the success of the grid connected photovoltaic power supply. The control strategy of grid connected solar inverter mainly includes four methods: voltage source control, current source voltage control, voltage source current control and current source current control. Because when the input side using the current source control, need a large inductor in series, and this will make the dynamic response of the system becomes poor, so we usually use the source of the input terminal control, that is, a capacitor. In parallel operation of inverter and power grid, the output side control is divided into voltage control and current control. The network system is generally a large AC voltage source, when the output voltage control is used, the voltage source and the voltage source will occur in parallel operation. This situation is easy to occur the bad flow, and control will also relatively complex, so the output side of the c...

Twenty-first Century is the century of coordinated development of energy development, resource utilization and environmental protection. Energy optimization and development of clean energy, is an important part of the strategy of sustainable development of energy resources and environment. As the world’s major energy, the oil, natural gas and coal and other fossil fuels will gradually be depleted, hydrogen energy and renewable energy will gradually replace the fossil fuels as the main energy used by human, this energy change will force power generation mode to a great change, the use of high efficiency and low pollution of hydrogen energy and renewable energy fuel cell power generation, will become the main way to produce electricity. Therefore, the inverter technology has a very important position in the development and utilization of new energy. The technical pursuit and development trend of solar panel power inverter power supply can be summarized in the following aspects: 1.Hig...

Many customer advisory technical personnel about solar inverter power, will usually ask how much power is enough to use?. But here we need to make different judgments about different needs. First of all, you need to know that your system is grid connected or off grid. If it is grid connected, then the power of  solar inverter system  only needs to be slightly larger than the connected solar power component; if it is off grid, then the power of solar inverter system need to decide according to the load. Secondly, after the judgment of your system, we need to figer out your total load power and composition (here for off grid system, grid connected system only need to know the total solar power). For the general load, can meet the use when just larger than the load power; if the load is inductive, such as refrigerators, televisions, air conditioning, you need to consider the starting power. Due to the inductive load is usually 3-4 times current at startup, then inverter powe...

Grid connected solar inverter is the access device which connect batteries to power grid. The working principle is that the convery electric energy to AC and transmitted to the power network. Plays a important role in grid connected power generation system, the three indicators of high efficiency, high power density, high reliability determines the quality of photovoltaic inverter. The parameters and performance of power grid connected inverter of different manufacturers are also not the same, especially the efficiency, which is directly related to the generating capacity of photovoltaic power plant. Here are the parameters of the data of grid connected inverter as a reference. Parameters of grid connected solar system inverters 1.Output capacity: single phase 0.5-100KVA, three-phase 2-200KVA. 2.Output voltage: AC220 ±3%, 380 ±3%. 3.Output frequency: 50Hz ±0.05. 4.Waveform distortion rate: <5%. 5.Power factor: 0.8. 6.Overload capacity: overload 150%, 10S. Characteristics of gri...

Miniature  solar inverter  in the 1990s, but due to technical reasons, until after 2008, several professional miniature solar inverter manufacturers start production, truly entered the commercialization stage. In nearly 6 years, micro solar inverter technology gradually developed to mature. At present, micro solar inverter has appeared at least 3 generations of products. The characteristics of the first generation of micro solar inverter: 1.In order to match the power of the component at that time, the power of the DC input terminal is low, and the corresponding output is low. 2.At that time, micro solar inverter products are all single component connected, and miniature solar inverters are daisy chain connected to each other. The characteristics of the second generation micro solar inverter: 1.DC input and AC output, following the pace of the development of the component power, and due to the use of high power components at the current market, customers began to requ...