Energy Generated - 51749 Million Units   Carbon Footprint Offset - 132 Million Metric Tonnes
*Last Updated on January 31,2016

Grid Integration

Grid Integration

Our installations feature a grid feed system that meets the latest grid connection requirements, and complying with latest statutory and Regulatory norms. Therefore it can be easily integrated to any state grid network.

This concept offers solutions such as reactive power management and voltage control for normal operation as well as for critical situations, resulting from network short-circuits or bottlenecks. Wind turbine behaviour is essentially comparable to conventional power plants. We are the first manufacturer worldwide to have received a certificate confirming these power plant properties.

Energy generated in our annular generator is fed to an inverter via a rectifier and a so-called DC link. This ensures that output power is regulated according to grid specifications. This is where stipulated requirements, such as voltage frequency and reactive power for each individual turbine in a wind farm, are implemented. The system transformer makes the conversion from 400 V to medium voltage. Which in turn step up to EHV level (66/132/220kv) at our own Pooling stationĀ before finally injected in to the State Grid.

The equipments used in our lines and substations are latest and coupled with all protective devices to trouble free operations


ELECTRICAL GRID COMPATIBILITY

The wind turbines offer maximum grid compatibility due to their control and operating mode. Output peaks do not occur due to the closed-loop and open-loop control concepts. Almost no reactive power is required in normal operation.

 


WIDE VOLTAGE AND FREQUENCY RANGES

Our grid feed system allows the wind turbine to operate within a wide range, promoting reliable operation in weak grids. This enables our wind energy converters to support the electrical grid, even at complex locations

 


STAY CONNECTED WHEN GRID PROBLEMS OCCUR

Similar to power station behaviour, wind turbines in transmission grids should not immediately disconnect from the grid when short circuits occur. During voltage dips due to grid problems, they should be able to remain connected to the grid. Our wind turbines have this capability.

If necessary, the turbines also support grid voltage when problems arise. This is achieved by feeding reactive power. After the problem has been remedied and grid voltage has been restored, the wind turbine immediately continues feeding power.

 


MAIN CONTROL UNIT (MCU) - FOR WIND POWER PLANTS

Individual wind farms functioning similar to conventional power plants have successfully been in operation and integrated in existing grid structures for many years. It is more and more common to find several wind farms connected to a central point of common coupling to form wind power plants.

Since installed power output is high, these plants usually feed power into high-performance transmission grids. Our main control unit (MCU) assumes centralized open-loop and closed-loop control of a wind power plant. It takes over typical communication and data transfer tasks to grid control systems and load dispatching centers fulfilling complex technical grid connection regulations for wind power plants.

Our MCU is available a as module. Each application is customized with features best suited to the project.

Depending on requirements our MCU has different interfaces to connect to the grid control systems. Bottleneck management for wind power plants is yet another feature part in addition to reactive power management, or the integration of switchgear assemblies or entire substations into the wind power plant.

Typical requirements for wind power plants in transmission grids: