Application of FGI Static Var Generator in the field of green electricity hydrogen production

1.Introduction

In the context of the increasing demand for clean energy in the world, solar photovoltaic hydrogen production is a new way of energy conversion. Photovoltaic hydrogen production is in the case of insufficient remaining electricity, the remaining electricity is used to decompose water to produce hydrogen, and the electric energy is converted into hydrogen, so as to achieve the storage of electric energy; When electricity is in short supply, hydrogen storage is converted into electricity to make up for the shortage. Compared with the construction of large-scale energy storage equipment, this method has certain advantages in cost, and can also solve the problem of "abandoning light". For example, in the solar power system in Kuqa, Xinjiang, 20% of the electricity is connected to the grid, and 80% of the electricity is used for hydrogen production.

The randomness and volatility of photovoltaic power generation is an important factor restricting the development of photovoltaic power generation, but also an important factor restricting the development of photovoltaic power generation. Therefore, in order to solve the large voltage fluctuation and improve the power factor, the scheme of using FGI Static Var Generator device is proposed.

2. FGI scheme

According to the actual situation of the site, FGI gives a targeted solution, and adopts  Static Var Generator to solve the power quality problem. SVG achieves high quality voltage waveform output by connecting high voltage series and parallel to the power grid.

When the equipment is working, the operation of the system is collected, and then calculated, and then the output is adjusted in real time according to the situation of the system, so as to achieve fast, accurate and dynamic compensation, and ensure the power factor and voltage stability of the grid-connected node. In addition, the unit is equipped with an external communication interface that can be connected to the power plant's control system for unified scheduling.

3.Program advantage

FGI has taken the initiative to respond to the policy and industry needs, and has upgraded and improved SVG several times from the actual work of the equipment, so that it has the following advantages:

FGI actively responds to the policy and industry needs, considering the operation of the equipment, for the dynamic reactive power compensation device has carried out several updates and iterations, forming the following advantages:

After the use of FGI Static Var Generator excellent high and low voltage crossing performance.

The high and low voltage crossing range and duration and other indicators are higher than the national standard, which can maintain the equipment in the case of power grid voltage sudden drop or sudden rise, and does not expand the accident.

After using FGI Static Var Generator, you can automatically switch the function of time-sharing control.It can set different operating modes according to different times and switch automatically to better adapt to different site needs.

A wide variety of FGI Static Var Generator models.With indoor, outdoor, air-cooled, water-cooled models, the voltage range covers 6kV, 10kV, 20kV, 35kV various grades, to meet various project requirements.

FGI Static Var Generator has multi-machine cooperative control mode.It can realize unified and coordinated control when multiple devices are running in common bus.