220V DC single-phase high-power 20KW off grid power frequency inverter

Product Introduction

The power frequency pure sine wave inverter developed by our company is an intelligent power supply device that converts direct current into alternating current. The output waveform is pure sine wave, with complete protection functions, good overall efficiency, and low no-load loss. It provides a guarantee for normal power supply in areas without electricity such as mountainous areas, pastoral areas, border defense, and islands with inconvenient transportation and harsh environments. The product has humanized design, elegant appearance, easy operation, intuitive LCD display, stable operation, and no noise. The output AC power is suitable for most industrial and household appliances, such as various electric tools, motors, water pumps, lathes, air conditioners, compressors, refrigerators, washing machines, televisions, fans, etc.

Solar off grid power generation system

The solar off grid power generation system is generally composed of solar panels, batteries, solar charging controllers, off grid inverters, and other components. The sunlight is converted into electrical energy through solar panels, and the battery is charged through a controller. Then, the DC power of the battery is converted into AC power through an off grid inverter for use by electrical equipment.

Performance characteristics

1. Adopting IPM module,Good performance and stabilityWith short-circuit, overload, and over temperature protection functions, it is more reliable and has a longer service life.

2. Dual mode start selection function, which can be set in two ways: voltage reduction start and frequency conversion start through LCD settings. This can fully utilize the power of the inverter, eliminating the need to expand the capacity of the inverter when carrying motors or inductive loads, saving users costs.

3. The output frequency can be set by oneself, for example, if you want to control the motor speed to 30HZ, the inverter will output 30HZ. This feature is very convenient for customers to use with different load types.

4. The input DC voltage range can be set, such as overvoltage point, undervoltage point, overvoltage recovery point, and undervoltage recovery point, all of which can be set through the LCD screen. This function is convenient and allows for the addition or reduction of batteries, as well as flexible use of photovoltaic modules.

5. Output pure sine wave, which has a good transient response less than 50MS, small waveform distortion, and inversionGood efficiencyStable output voltage

6. Adopting a power frequency isolation transformer, the AC bus is basically isolated from the DC bus, avoiding interference between AC and DC

7. LCD liquid crystal display, which can display input DC voltage, output frequency, phase voltage, phase current, mains bypass voltage, output power KWH, time, temperature, and fault display.

8. Adopting the SVPWM space vector algorithm, the high conversion efficiency, high instantaneous power, and low no-load loss conversion efficiency can reach over 93%.

9. The off grid inverter can operate without batteries, saving battery and controller costs. It has an MPPT wide voltage input function of 100-400V, 200-500V, or 400-800V, fully utilizing solar energy.

10. The input ripple current is small, which can be used for various types of DC power input such as fuel cell, lithium battery, Lithium iron phosphate battery, gel battery, lead-acid battery, fan rectifier, water turbine unit, etc.

11. RS485 communication, mains bypass function, built-in solar charging controller, built-in mains charger, starting Diesel generator and other functions are optional.

Technical parameters (conventional)

Note: Voltage parameters, chassis size, logo, etc. can be customized according to customer specific requirements