Siemens Robicon supports South Dakota power plant environmental renovation project

Siemens supports South Dakota power plant environmental renovation project

Siemens cooperated with Fougner Engineered Sales, a supplier of electrical equipment and supplies, and selected Otter Tail Power Company to provide two Robicon Perfect Harmony variable frequency drives (VFDs) for the Big Stone plant of the thermal power plant for environmental upgrades. The company's power plant in SD Dashicheng

This content is submitted directly to this website by the supplier.

December 7, 2012

Siemens cooperated with Fougner Engineered Sales, a supplier of electrical equipment and supplies, and selected Otter Tail Power Company to provide two Robicon Perfect Harmony variable frequency drives (VFDs) for the Big Stone plant of the thermal power plant for environmental upgrades. The company's power plant in SD Dashicheng

In May, the plant owner’s Otter Tail Power Company, Montana-Dakota Utilities Co. and Northwestern Energy approved a plan for a US$490 million environmental renovation, including a new air quality control system to be put into use within five years of environmental protection . The agency approved the South Dakota Haze National Implementation Plan.

Two Siemens Robicon Perfect Harmony WCIII drives will support a new dry scrubber to reduce sulfur dioxide. The plan also requires the use of selective catalytic reduction (SCR) devices to reduce nitrogen oxide emissions. According to a spokesperson for Otter Tail Power Company, these modifications are expected to reduce nitrogen oxides and sulfur dioxide by 80% to 90%.

Variable frequency drives have many advantages, including cost savings. Since it is not necessary to run fans and motors at 100% power in the power plant, these drives can increase efficiency. "Fougner Engineering Sales President Mark Fougner said. "The battery bypass function of Siemens Robicon Perfect Harmony Drives has technical advantages. Throughout the project, the Siemens team proved to be a trusted partner. "

Siemens Robicon Perfect Harmony drives are unique in that each drive uses a series of low-voltage batteries linked together, and is precisely scaled for various voltages and output powers. Battery bypass can ensure that the failed battery is automatically bypassed in less than 500 milliseconds, and there is no need to shut down the entire drive. Instead, the process tolerance protection system (ProToPS) provides a layered warning system. This control strategy allows time to assess the situation and respond appropriately. The concept also makes it easy to access drive components for regular maintenance. Siemens VFD also meets the IEEE 519 input power harmonic distortion standard.

Siemens Robicon Perfect Harmony drives are very suitable for the chemical, petrochemical, oil and gas, and power generation industries because they can withstand voltage drops, have a small footprint, and do not require output transformers, harmonic line filters or power factor compensation.

The Otter Tail Power Company estimates that the renovation of the 475-megawatt Dashi Power Station that has been in operation since 1975 will be completed in mid-2015. The Big Stone Power Plant is one of three coal-fired power plants, and its power generation accounts for approximately 70% of the company's electricity. The company also owns six hydroelectric power plants, owns and purchases wind power, and operates three gas turbine backup power plants. The company also buys and sells bulk electricity on the wholesale market.

Otter Tail Power Company, a subsidiary of Otter Tail Corporation (Nasdaq Global Select Market: OTTR), is headquartered in Fergus Falls, Minnesota and provides services to the population of more than 250,000 in Minnesota, North Dakota and South Dakota Electricity and energy services. To learn more about Otter Tail Power Company, please visit www.otpco.com. To learn more about Otter Tail Corporation, please visit www.ottertail.com.

For more information about Siemens Robicon Perfect Harmony variable frequency drives, please visit http://www.industry.usa.siemens.com/drives/us/en/electric-drives/medium-voltage-drives/Pages/medium-voltage- drives .aspx? stc = usidt100007&sp_source = usidt100007.

https://www.robiconperfectharmony.com/