The role and application of inverters in energy storage grids.

The role and application of inverters in energy storage grids.

With the development of modern technology, inverter power supplies are widely used in various industries, which puts forward higher requirements for their functions. Traditional inverter power supplies are mostly control systems that combine analog control or digital control. A good voltage output waveform of an inverter power supply mainly includes high steady-state accuracy and good dynamic performance. At present, the structure and control of inverters can obtain good sine output voltage waveforms, but the effect is not very ideal for waveforms with rapid changes.

Function signal generator is a commonly used equipment in experimental teaching. Can generate waveforms of different frequencies and voltage levels: square wave signal, triangular wave, sine wave signal waveform. A new DDS technology that has emerged in recent years, namely direct digital frequency synthesis technology. But they are all small signal waves, without power output, and cannot carry a certain load.

The proposed multifunctional inverter power supply adopts a dual single-phase full bridge inverter structure in the main circuit, and the output voltage waveform tracks the given reference waveform. It has power output and can carry a certain load. The control adopts hysteresis control with differential elements, fully realizing digital control.