1. Application of industrial optical fiber products in wind turbines and wind farms              

Jinzhi provides highly reliable industrial fiber optic components for isolation in the data acquisition/control and power generation markets. These products have excellent high insulation voltage performance and immunity to EMI, and can be installed and operated near power transmission pipelines that can produce destructive electrical interference. As the global demand for renewable energy grows, the design of wind turbines has become larger and larger. Jinzhi's industrial fiber optic products provide a wide range of data rates and link lengths for many applications in this power generation market.              

"The power of a wind generator is used to convert kinetic energy into electrical energy through the use of a generator. As the wind conditions change, the electricity generated from the generator needs to be converted to availability. Rectifiers, inverters, transformers and filters are needed in wind turbines so that utility-grade AC power can be transmitted over long distances (bottom right).

Transformers are usually installed at the bottom of the tower to provide voltage conversion from the low voltage generated by the wind turbine to the medium/high voltage transmission.

Rectifier and inverter"      

"There are many rectifier and inverter control switches available:

↓ Insulated gate bipolar transistor (IGBT)

↓ Gate turn-off thyristor (GTO)

↓ Integrated Gate Commutation Thyristor (IGCT)

↓ Symmetrical gate commutated thyristor (SGCT)

↓ Emitter turn-off thyristor (ETO)"              

Figure 3. Phase pin diagram of ETO's two-stage voltage source converter

Fiber optic components are usually used to control high-voltage and current switching equipment, and have reliable control and feedback signals (Figures 2 and 3).              

Figure 2. Block diagram of IGBT's de-polarization drive            

Rectifiers and inverters are key components in wind turbine systems. The rectifier converts noisy alternating current into direct current, and the inverter converts direct current into clean and reliable alternating current power. 

Common fiber optic component part numbers            

Networking of wind turbines and wind farms              

Wind turbines need to withstand extreme weather conditions such as storms and lightning. It is important to ensure that the turbine monitoring system is designed to provide high voltage and galvanic isolation. Optical fiber has become the preferred medium of choice because it has higher voltage and current isolation characteristics than optocouplers and other similar components.              

Figure Four          

Jinzhi provides industry standard connectors such as ST/ST-thread and SMA. The HFBR-0400Z series can run on HCS and multimode fiber, and they can provide greater bandwidth and link distance compared to POF solutions. These parts are commonly used in wind turbine towers and long-distance wind farm networks.          Jinzhi provides a series of fiber optic transmitters, receivers and transceivers for wind turbine monitoring systems and network applications. Such as 650nm, 820nm or 1300nm components, its data rate is up to 160MBd, which can meet the needs of customers in various link distances.    

2. The application of optical fiber in solar energy              

In a solar farm power generation system, solar heat generates a lot of current. In order to protect equipment from huge current leakage, electrical insulation is essential to ensure the quality and reliability of the power system. Optical fiber can provide insulation protection to prevent high voltage or current interference.              

"The key applications of fiber optic components in solar systems include:

1 Power electronic gate driver for inverter

2 Solar tracking control and communication board

3 Substation automation and protection relays for solar power plants"    

solar energy generation              

Figure one        

Figure 1 Solar power generation frame Solar panels collect solar energy and convert it into electrical energy through photovoltaic modules or solar collectors. In order to integrate the electricity generated by the solar panels into the transmission line, the electricity needs to be converted into utility-grade alternating current (Figure 1)                      

"Examples of power semiconductor devices available on the market:

1 Insulated gate bipolar transistor (IGBT)

2 Delete level power-off thyristor (GTO)

3 Integrated Gate Commutation Thyristor (IGCT)

4 Symmetric Gate Commutation Thyristor (SGCT)

5 Launcher turn-off thyristor (ETO)"      

Fiber optic tissue is usually used to control high voltage and current switches and current switching devices, and has reliable control and feedback signals (Figure 2, Table 1)        

Figure three      

  The universal link product series (HFBR-0500Z series) has always been the most popular standard component for power semiconductor control boards. Its simple transmitter and receiver circuits make these components easy to integrate into TTL logic level systems. Figure 3 shows a general interface circuit for 5MB data rate operation.    

Figure Four    

The solar panels are controlled by the monitoring system.        

As the scale of solar farms continues to expand, in order to generate more electricity for utilities, they are equipped with smart functions to monitor the performance of each solar panel.              

Figure five

For example, the point output and temperature of the panel; in order to maximize the power output, it becomes very important to control the angle and direction of the solar panel. In solar farms that generate several megawatts of power, solar panels are installed in wide areas. In these areas, reliable control and monitoring networks can only be achieved through optical fiber networks (Figure 4, Table 2)    

Since most of the equipment in the substation operates under medium temperature/high voltage, galvanic isolation is necessary to provide protection for low voltage equipment. Due to the high voltage and current, the equipment will also generate a large electromagnetic field. In order to ensure reliable control, This standard is immune to BE FIELD communication lines. In this case, optical fiber is the best solution to meet such requirements in the control and communication lines of substation automation. (table 3)

3. Industrial optical fiber in train transportation system              

Train propulsion system              

Electric trains and diesel trains are the most common modern trains. The main difference between these two types of trains is the way the trains are powered. Regardless of whether the main energy source is grid electricity or diesel generators, the power conversion process from energy sources to the propulsion power of the traction motor and the auxiliary power generation of the on-board electrical system is very similar. The process of converting grid and diesel energy into usable power is shown in Figures 1 and 2              

Common Avago fiber optic parts used in train propulsion, control and monitoring systems are as follows:        

Since the distance between the control board and the converter is usually short, POF or hard coated silica (HCS) cables are often used. Fiber optic transmitters and receivers that support switching speeds from DC to 5 MBd or DC to 10 MBd are usually used in this application. As shown in Table 1, the Versatile Link product line provides the most cost-effective and reliable solution to solve this application.              

Train communication system              

Optical glass fiber and POF are usually the preferred media in locomotives because of their high resistance to electrical noise in the locomotive environment. Fiber optics connect the controller to devices and subsystems, such as power electronics, motor controllers, brakes, and radios. Figure 3 shows the general MVB layout in a locomotive.        

As shown in Figure 4, the MVB is also connected to the equipment in the coach to control lights, doors, air conditioning and passenger displays. In order to increase network availability, MVB is backed up by redundant lines, and the equipment is transmitted on two lines. If one line fails, the other line can be used for communication.              

When realizing MVB with optical fiber, the star coupler is used to restore the signal quality of a maximum of 4095 devices connected to a bus, as shown in Figure 5. The MVB data rate is fixed at 1.5 Mbps and can be handled easily. HFBR-1412Z transmitter and HFBR-2412Z receiver fiber optic components.              

         For more products, please call the toll-free hotline: 400-160-8187 E-mail: sales@kinz-pof.com Website: www.kinz-pof.com