Siemens ROBICON Perfect Harmony Electric utility improves fuel efficiency with VFDs
Siemens ROBICON Perfect Harmony Electric utility improves fuel efficiency with VFDs
Siemens ROBICON Perfect Harmony Electric utility improves fuel efficiency with VFDs
Intro
A global electric utility with more than 20
U.S. power plants needed to increase
efficiency and throughput in order to
improve profitability. The utility was using
fuel-inefficient, high-emission mechanical
flow control methods to control the process
flow of electric motor-driven fans, pumps
and compressors. The constant-speed
process motors created excessive inrush
current during starting, thus limiting the
number of starts over a period of time and
making it difficult to accurately control
process speeds.
Challenge
Depending on each plant’s specific
regulations, the utility wanted to decrease
auxiliary power requirements in order to
achieve one of two outcomes. Outcome
one: The plant would burn the same
amount of fuel and create the same level of
emissions, but increase its net MW output
by the value of the reduced auxiliary.
Outcome two: The plant would burn less
fuel and generate fewer emissions, since
less auxiliary power is needed, and produce
the same net MW output.
Lifecycle cost was a significant factor, as the
utility measured the ROI of all new purchases
over a 20-year period. Plus, the utility
wanted to reuse the original medium-voltage
constant-speed motors, as purchasing new
motors would negatively affect the project ROI.
Solution
The local Siemens representative worked
closely with the utility to gather real-world
process operating parameters and perform
calculations to compare the power
consumption of the existing constant speed
motors with that of a medium voltage
variable frequency drive (MV VFD) across the
20 power plants. The Siemens ROBICON
Perfect Harmony VFD proved to offer
significant energy savings, along with
substantial ROI and low total cost of
ownership, due to its 20-year life expectancy.
The utility selected the Siemens ROBICON
Perfect Harmony drive for these reasons, as
well as for its built-in reliability.
Siemens ROBICON Perfect Harmony
Electric utility improves fuel
efficiency with VFDs
https://www.robiconperfectharmony.com/
The unique mechanical Advanced Cell Bypass feature allows
the drive to remain operational in the unlikely event of a
device power failure. Other MV VFD technologies shut down
under these circumstances, which could cause the entire
power plant to shut down. Due to the opportunity costs
associated with a power plant not producing power, other
MV VFD technologies have an extremely long ROI, which the
utility would not approve.
Results
The Siemens ROBICON Perfect Harmony improved fuel
efficiency across all 20 plants. Some facilities increased net
MW output, and others burned less fuel—improving
profitability. And because all 20 plants used the same drive,
the utility benefited from spare parts availability and service
alignment across locations.
Benefits
• Improved reliability and performance: Advanced Cell
Bypass allows the drive to bypass any one cell during
operation while maintaining the full output voltage.
• Broad compatibility: IGBT-based topology allows the
drive to be scaled precisely for a very wide range of
voltage and output power.
• Increased energy efficiency: Synchronous transfer
reduces stress on the power grid and equipment during
simultaneous motor startup.
• Reduced total cost of ownership: 50+ technologies
decrease downtime, improve energy efficiency and limit
wear and tear—extending the drive’s life to up to 20 years.
• Fast, dependable customer service: Real medium
voltage drive technicians provide support throughout the
lifecycle, from quoting, commissioning and on-site
training to 24 / 7 / 365 call center support and nationwide
field service.
About
The Siemens ROBICON Perfect Harmony drive features a
series of linked low-voltage cells that build the mediumvoltage power output of the drive system. With this topology,
the drive can be scaled precisely for a very wide range of
voltage and output power. Its ability to bypass any one cell
during operation while maintaining the full output voltage
offers unsurpassed availability and reliability. An integral
transformer with phase-shifted secondaries eliminates the
need for input harmonic filters or power factor
compensation. This results in output voltage so close to
perfect sine-wave shape that motors of literally any
type—old or new, low-speed or high-speed—can be
operated without any additional stress. And the drive’s
industry-leading reliability is further backed by live,
U.S.-based support. Siemens engineers are available to assist
with everything from quoting and factory acceptance testing
through training, commissioning and long-term technical
support. With 10,000 installations, the Siemens ROBICON
Perfect Harmony is the best-selling drive worldwide.
Siemens Industry, LDAP
500 Hunt Valley Road
New Kensington, PA 15068
1-800-241-4453
Subject to changes without prior notice
All Rights Reserved
Order No: LAFL-01800-0913
Printed in USA
©2013 Siemens Industry, Inc.
Siemens drops Robicon name from its MV drives
10 JANUARY, 2014
Siemens Drive Technologies is renaming its Robicon range of medium-voltage (MV) drives, which, it claims, are the global market-leader, with more than 10,000 sold since their launch in 2004. In future, the MV drives will be marketed under the Sinamics brand that Siemens already uses for its other drives ranges, and will be known as Sinamics Perfect Harmony.
Siemens acquired the Robicon brand when it rescued the former Robicon Corporation from bankruptcy in 2005. It paid around $197.5m for US-headquartered Robicon’s assets, which included the stock at its subsidiaries in the UK (the former Hill Graham Controls), China, Brazil and Canada. Robicon’s former parent, High Voltage Engineering (HVE), had been suffering from financial problems for several years and filed for bankruptcy in February 2005.
Since acquiring Robicon’s assets, Siemens has invested in the business, including spending $7.2m to expand its production facilities in New Kensington, Pennsylvania, in 2006. It says that the addition of the Perfect Harmony drives to the Sinamics portfolio shows its commitment to the technology.
Siemens calculates that the Robicon products now have an installed base capacity of 2.2GW. The drives are produced in both air-cooled versions (up to 6.7MW) and liquid-cooled models (up to 14.2MW).
Siemens says its is committed to the future of the former Robicon MV drives
The modular drives incorporate more than 50 patented technologies. For enhanced reliability, they use a cell-based design that allows cells to be bypassed during operation, while maintaining the full output voltage. Siemens claims that the drives’ MTBF is 200,000 hours.
The drives incorporate transformers with phase-shifted secondaries that provide 18-pulse or higher harmonic cancellation, with a power factor above 0.95 under all operating conditions. This eliminates the need for input harmonic filters or power factor compensation, while avoiding common-mode voltages being imposed on the motor.
| № п/п | № первичной заявки | № позиции | Заказчик, структурное подразделение | Наименование | Доп. данные о материале | Плановый срок поставки | ЕИ | Кол-во |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 1 | 1000017987/6 | 6 | Цех 7 электроснабжения | ЗИП для частотного преобразователя | Силовая ячейка (заказной № A1A10000494.260 или 6SR4902-0AF00-0AA0) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | КМП | 1 |
| 2 | 1000017987/7 | 7 | Цех 7 электроснабжения | Плата Siemens А1А10000432.72 | Плата управления ячейкой (заказной №А1А10000432.72) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 3 | 1000017987/8 | 8 | Цех 7 электроснабжения | Плата Siemens A1A10000350.00M | Плата модулятора (заказной № A1A10000350.00M) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 4 | 1000017987/9 | 9 | Цех 7 электроснабжения | Плата Siemens A1A10000423.00M | Системная плата ввода/вывода (заказной № A1A10000423.00M) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 5 | 1000017987/10 | 10 | Цех 7 электроснабжения | Плата сигнальная Siemens A1A10000403.01M | Сигнальная контрольная плата (заказной № A1A10000403.01M) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 6 | 1000017987/11 | 11 | Цех 7 электроснабжения | Плата Siemens A1A10000484.00 | Плата питания байпаса ячеек (заказной № A1A10000484.00) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 7 | 1000017987/12 | 12 | Цех 7 электроснабжения | Плата Siemens A1A363662.01M | Плата управления байпасом ячеек (заказной № A1A363662.01M) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 8 | 1000017987/13 | 13 | Цех 7 электроснабжения | Источник питания Siemens A1A14000461.00 | Источник питания NXGII ( заказной № A1A14000461.00) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 9 | 1000017987/14 | 14 | Цех 7 электроснабжения | Предохранитель Siemens 6SR0960-0JA05-0AA | предохранитель 1 А/1000 В (заказной № 6SR0960-0JA05-0AA0) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 2 |
| 10 | 1000017987/15 | 15 | Цех 7 электроснабжения | Предохранитель 500А Siemens A1A0100504 | предохранитель 500 А для защиты силовых ячеек (заказной № A1A0100504) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 4 |
| 11 | 1000017987/16 | 16 | Цех 7 электроснабжения | Предохранитель 2A 1200 Siemens A1A089592 | Предохранитель 2 A 1200 В (заказной № A1A089592) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 4 |
| 12 | 1000017987/17 | 17 | Цех 7 электроснабжения | Вентилятор Siemens A1A0100118 | Вентилятор (заказной № A1A0100118 (EBM)) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 2 |
| 13 | 1000017987/19 | 19 | Цех 7 электроснабжения | Датчик Холла 6,6кВ Siemens A1A164877.06 | Датчик Холла 6,6 кВ (заказной № A1A164877.06) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 2 |
| 14 | 1000017987/20 | 20 | Цех 7 электроснабжения | Фильтр Siemens A1A0100310 | Воздушные фильтры шкафа ячеек (заказной № № A1A0100310)частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 4 |
| 15 | 1000017987/21 | 21 | Цех 7 электроснабжения | Контактор Siemens A1A10000539.00 | Контактор перепуска (заказной № A1A10000539.00) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 16 | 1000017987/22 | 22 | Цех 7 электроснабжения | Фильтр | Воздушные фильтры трансформатора (заказной № A1A0100339) частотного преобразователя Robicon Perfect Harmony Gen IV SIEMENS | 28.02.2021 с правом досрочной поставки | ШТ | 4 |
| 17 | 1000017987/23 | 23 | Цех 7 электроснабжения | Реле | Модуль аварийной сигнализации SIEMENS BSM16-55-CRX-00 для рапределительного устройства КРУЭ-110кВ 8DN8 фирмы SIEMENS | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 18 | 1000017987/24 | 24 | Цех 7 электроснабжения | Реле | релейный модуль SIEMENS MSM-RM 16-5-00 Для рапределительного устройства КРУЭ-110кВ 8DN8 фирмы SIEMENS | 28.02.2021 с правом досрочной поставки | ШТ | 2 |
| 19 | 1000022882/36 | 36 | Цех 7 электроснабжения | Трансформатор тока Siemens A1A164877.05 | Трансформатор тока 6.0 кВ (заказной № A1A164877.05) частотного преобразователя Robicon Perfect Harmony Gen IV | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
| 20 | 1000022882/41 | 41 | Цех 7 электроснабжения | Регулятор дугогасящего реактора REG-DPA | Для распределительного устройства КРУЭ-110кВ 8DN8 SIEMENS | 28.02.2021 с правом досрочной поставки | ШТ | 1 |
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