News & Press Releases


Nov  2018
Immediate Hiring Opportunities!

There are immediate hiring opportunities available at HF Controls! Please see our Careers page for details.

Feb  2018
Doosan HFC will be hosting the 11th International Workshop ...

Doosan HFC will be hosting the 11th International Workshop on the Applications of Field Programmable Gate Arrays (FPGA) in Dallas, on October 8th through 11th, 2018.

The previous international meetings have attracted significant and increasing interest from nuclear utilities, nuclear safety authorities, technical and scientific support organizations, universities, research and development organizations, and technology suppliers. This series of annual meetings is considered now the most representative international meeting on the given subject.

The FPGA workshops contribute to the development of competencies in a specific technical field that remains relatively new to the nuclear industry. In this connection, the annual meetings serve as the basis of a Community of Practice aimed at capturing and transferring knowledge for the wider nuclear community. The continued development of knowledge in this area is essential to the ongoing modernization and new build projects of nuclear instrumentation, control, and safety systems that employ FPGA technology world-wide.

Jan  2018
Doosan HFC has secured a contract with Toshiba ...

Doosan HFC has secured a contract with Toshiba for supplying and implementing the boiler protection system of the 660MW Harduaganj Thermal Power Station Extension-II, which is owned by Indian Uttar Pradesh Rajya Vidyut Utpadan Nigam Limited.

Doosan HFC uses its TUV SIL3 certified FPC-08 controller based TMR to implement such a boiler protection system. The FPC-08 controller, along with its comprehensive I/O cards, has been used extensively including all of the Korean Nuclear Power Plants (NPPs) ASTS (Automatic Seismic Trip System), KORI NPP Unit 3&4 PAS (Plant Annunciation System), YGN 3&4 NPP Unit 3&4 Interposing Logic System (ILS), and Chinese QinShan NPP Unit 1 SMS (Seismic Monitoring System).

Nov  2017
BMS upgrade for power plant in Chalk Point, Maryland

Doosan HFC has been commissioned to upgrade the BMS control system for a power plant in Chalk Point, South Carolina. This is a large gas/oil, tangential fired, twin furnace C.E. power plant.

Chalk Point has had Doosan HFC equipment installed since 1986 and as technology has advanced over the years has gone through several upgrades, improving plant performance as well as operator interface.

The Final Acceptance Testing (FAT) for the latest upgrade will occur in Dallas, Texas in August of this year, immediately followed by the installation of equipment at the site.

Jun  2016
Plant Annunciator System (PAS) replacement in Kori, South Korea

Doosan HFC in in the process of finishing the Plant Annunciator System (PAS) for Units 3&4 at Kori, South Korea. These are each 1,000 megawatt nuclear power units. HFC is using 38 of its FPC-08 controllers to evaluate and control more than 5,000 points.

At the same time HFC upgraded an old PAS system, HFC included a Sequence of Event (SOE) system which tracks every input as it changes. The SOE system can detect a change down to 125 microseconds. After figuring in potential de-bounce of input contacts, the system looks at a 1mS resolution. As per customer input, to eliminate possible false inputs due to noise on field wires, the system will reject any input signal less than 4.5mS in duration.

Nov  2014
Annual Petro-Chemical Automation Association Meeting

HF Controls participated the 13th Chinese Annual Petro-Chemical Automation Association Meeting in Wuxi, China with a booth from Nov 12 thru 15 to promote HFC SIS products. At the same time, HF Controls is looking for potential strategic OEM partners for it. There were many inquiries from local companies about possibilities of join effort to promote our SIS products for Petro-Chemical industry.

Nov  2014
Welcome Shanghai Regeon

Welcome Shanghai Regeon Electric Company (Regeon) as one of our strategic partner for promoting HF Controls’ nuclear safety I&C products in China. Regeon has a lot of experiences in supplying I&C equipment to both nuclear and non-nuclear applications. The company has a strong engineering team and experienced manufacturing department.

Oct  2013
Awarded New Upgrade Project

HF Controls received purchase orders from Alcoa to upgrade the control system at their Warrick site. Unit 4 was partially upgraded years ago and will now have their DOS-based Engineering Work Station upgraded to a Windows 7-bassed system, will have the inter-controller communication equipment upgraded and will have the directly connected MODBUS link to a separate Honeywell system upgraded to a faster MODBUS-over-TCP/IP communication link while adding a new Windows 7-based Operator Work Station installed for direct input.

Unit 2 is currently using SBC-02 controllers with Patch-Panel programming from around 1990 (that HF Controls still supports). These controllers will be upgraded to the SBC-05 controllers and the Patch-Panel code currently in use will be converted to modern Boolean form. The directly connected MODBUS link to a separate Honeywell system will be upgraded to a faster MODBUS over TCP/IP communication link while adding a new Windows 7-based Operator Work Station installed for direct input.

While the existing systems are still performing their duties after more than 20 years of continuous service, the upgrade will allow the operators a more modern direct interface for equipment control, easy future expansion of equipment, easier to understand and edit Boolean language programming and will be accomplished without altering any existing field equipment wiring!

HF Controls is looking forward to providing this modernizing of equipment and operator interface to a long time, valued customer.

Sep  2013
HFC Delivered the First Safety Instrument System to China/Taiwan

HF Controls delivered the first HFC-6000 Safety Instrument System (SIS) to Formosa Plastic Company in (FPC) Taiwan. After the Final Acceptance Test (FAT) in Taiwan, the SIS will be installed in FPC’s petrochemical plants in China later this year. This is the result from the two years cooperation of developing a certified safety control platform with Institute of Nuclear Energy Research (INER) in Taiwan.

Aug  2013
HFC-6000 Receives SIL 3 Certificate for Second Time

HF Controls receives the second TUV SIL 3 certificate for HFC-6000 safety control system. This time, the certificate is awarded to the Triple Module Redundant (TMR) HFC-6000 with our new HFC-FPC08 controller. Up to today, HFC-6000 has two SIL 3 certificate for both HFC-SBC06 multiple loop controller and HFC-FPC08 high performance controller. Both safety controllers have many installations for safety control processes in nuclear power plants in the past.

Jun  2013
Maintenance Contract Completed

HF Controls completed the service and maintenance contract successfully on Plant Control System (PCS) in Ulchin Nuclear Power Plant (UCN) during the outage of Unit 5. As the original vendor of PCS at site, HF Controls is able to diagnose the current system issues and to provide the solution to it. This service and maintenance contract was handled by HF Controls Branch Office in Korea and the technical support from our US based engineers.

Jun  2012
HF Controls participates in NIC 2012 Beijing China

HF Controls (HFC), a nuclear Digital Instrumentation and Controls (I&C) vendor located in Texas, USA, participated in the NIC 2012 Exhibition for the first time.

Digital I&C systems - based on computers and microprocessors, are the nervous systems of a nuclear power plant that monitor all aspects of the plant’s health and help respond with the care and adjustments needed.  Digital I&C systems offer highest reliability, better plant performance and additional diagnostic capabilities. Analog systems will gradually become obsolete.

About 40% of the worlds operating reactors (~450) have been modernized to include at least some digital I&C systems.  The current nuclear power plants that are in construction and are planned to be constructed will be digitized in most of their I&C systems. Safety-related digital I&C systems, for example, Reactor Protection Systems and Engineered Safety Features Actuation Systems, are key technologies in the nuclear I&C systems.  The safety-related I&C systems must be thoroughly reviewed and be qualified and approved by the government nuclear safety regulators before they are used in the nuclear power plants.

For the past twenty years, HFC has developed and manufactured a family of controller systems to control pumps, valves, circuit breakers, motor starters, and solenoid valves as well as monitor the status of the process under control. These control systems have been used for a wide variety of commercial processes, including nuclear power plants in the safety-related as well as non-safety-related applications. 

HFC is an active I&C equipment vendor in South Korea and have installed control equipment to all four Korean nuclear sites including Yonggwang, Kori, Wolsong and Ulchin. In the past 15 years, the South Koreans have installed 12 units, 1000 MW Korean Standard Nuclear Power (KSNP) plants. HFC provided the Plant Control System (PCS) to eight (8) units of these twelve (12) units.  The PCS controls up to 80% of the equipment in the plants and includes both nuclear class 1E and non-class 1E control systems.  HFC also provided several retrofit control systems to help the existing plants to upgrade aged I&C equipment such as Alternative Diesel Generator control systems (AAC D/G), and Safety Video Display Unit (SVDU) (similar SVDU have been supplied to the Spanish ASCO Units 1&2 Nuclear Power Plant).  In addition, HFC worked with Doosan Heavy Industries (HFC parent company) to design and test a Nuclear Steam Supply System (NSSS).    

Currently, South Korea is moving into 1400MW next generation nuclear power plants. As part of the localization policy, HFC has adjusted its role to perform design and development work for the I&C division of Doosan nuclear business group. HFC has been participating in I&C equipment development work for Shin Ulchin (SUN) 1&2 aggressively. The scope of the work includes both I&C development engineering and nuclear application engineering. Just for this year alone, HFC received more than half dozen engineering projects from its parent company.

HFC is instrumental in helping South Korea to realize its nuclear I&C technology localization. The original design of HFCs digital control system for Duke Powers nuclear application became the first digital I&C installation in the South Korean nuclear power plant (YGN 3&4) in the early 1990s.  Installation of thousands of microprocessor- based single loop controllers marked the first step away from analog control circuitries to digitize the entire plant protection, control, and status monitoring. Since then, for a period longer than 10 years, the South Korea Power Engineering Company (KOPEC) has localized its I&C engineering process.  HFCs modernized HFC-6000 & ECS-1200 nuclear control system became the first installation of multiple loop controllers in South Korean nuclear power plants. Meanwhile, several Distributed Control Systems (DCS) had been started to apply to the non-critical control area such as the Radwaste control system.  The I&C equipment evolution process provided chances to gain mature experience for KOPECs nuclear I&C engineering and accumulative maintenance skills for Korean utility customer, Hydro & Nuclear Power Company (KHNP).  Since the nuclear industry localization is the long term policy and commitment for the South Korean government, HFC has been an important contributor to the South Korean nuclear industry to reach its goal of possessing the current most advanced nuclear plants I&C. 

Last April, HFC obtained the US NRC SER for its safety-related platform HFC-6000 (see Figure 1). This is an important milestone in the qualification of a safety system and is a useful basis for any company using the platform.  Such qualification simplifies the local licensing process and is ready for immediate applications.  HFC is only the fourth vendor to obtain such qualification.

Mr. Robert Contratto, Vice President Marketing and Sales of HFC and Dr. Steve Yang, Chief Consultant of HFC represented HFC at the NIC 2012 meeting in Beijing (see Figure 2).  Dr. Yang is an international expert on the digital I&C and safety-related software verification and validation.  He visited China a few times including an invitation presentation on the US digital I&C experience for China State Nuclear Power Technology Company and an invitation presentation on DCS V&V for the Nuclear and Radiation Safety Center (NRSC).   Dr. Yang strongly believes that HFC can provide an immediate solution with long term benefits to the China qualified 1E nuclear I&C platform need and fill the void for the Chinese Nuclear Industry.  This is because HFCs platform is not only reviewed most extensively and qualified but also proven and reliable.  According to Dr. Yang, the digital I&C is a very specialized and knowledge intensive field.  The size of the company does not matter.  However, the know-how and flexibility matter.  HFC has the nuclear I&C knowledge and the HFC system is flexible and scalable, suitable for any size of the nuclear I&C projects.  HFC is willing to cooperate with China through technical transfer with a comprehensive training program.  This will be a successful cooperation between HFC and China and will benefit the Chinese Nuclear Industry in particular and the greater industries in general.

Figure 1 HFC-6000 high integrity product basis

HF6000 Control System

Figure 2 - Mr. Robert Contratto (the first from the left) and Dr. Steve Yang (the third from the left) with engineers from China Nuclear Control System Engineering Company. 

Mr. Robert Controtta and Dr. Steve Yang

May  2011
NRC Approves HF6000 System!

After years of effort perfecting our Distributed Control System (DCS) we are proud to announce that the Nuclear Regulatory Commission (NRC) has approved the Doosan HF Controls HF6000 product line for use in nuclear power plants in the United States.  Doosan HF Controls will be receiving official notice shortly of the final acceptance of the Safety Evaluation and Draft Safety Evaluation comments from the NRC. This is a great day for HF Controls and the American nuclear power industry.

Already in service in numerous nuclear plants around the world, NRC approval of the HF6000 system gives aging American plants a new path towards safe operation with modern controls, providing Americans with clean, reliable electricity into the future.

Apr  2011
First SOE Rack Shipped

The first of a large number of Sequence of Events (SOE) rack systems finished Final Acceptance Testing and will ship this week. This system is capable of resolving event times to less than 1 mSec. Each SOE processor is capable of storing up to 32,000 events on 16 input channels with the rack supporting up to eight SOE processors.

Sep  2010
Fixed In-Core Detector Amplifier System

HF Controls has completed work on a new signal amplifier input card to be used at nuclear power plant Units 1 & 2 in Shin Ulchin, South Korea.  This new card will receive extremely small signals (~3 micro-amps) from the neutron flux detectors in the reactor core and amplify them for display and control in the safety system monitoring the core of the nuclear power plant.  These amplifier cards will ship to the site in the 1st quarter of 2011.

Sep  2010
HF6000 Receives SIL 3 Certification

Today, HFControls is proud to announce that our HF6000 series Safety Control System has received SIL 3 certification for Triple Modular Redundant (TMR) from TUVRheinland and SIL 2 certification for Double Modular Redundant (DMR)! The HF6000 Safety Control System is now qualified for mission critical or safety control systems, such as in utilities, petrochemical and pulp and paper mill industries.

Sep  2010
SDN Driver Work Completed

HF Controls completed work on creating the new driver for the Safety Data Network system for South Korean nuclear power plants Shin Ulchin Units 1 & 2.  Utilization of the new interface driver will take place in December of 2010.

Sep  2010
Second Unit Baghouse Upgrade Shipped

HFControls has just shipped the second of three upgrade systems for the NRG Parrish, Texas power plants.  The existing AFS systems were installed in 1987 and have been in continuous operation.  Each upgrade replaces the individual loop controller CPU with modern CPU boards, converts the programming from a Patch Panel system to a Boolean form, upgrades the entire communication network and replaces the old Starburst Keyboard operator interface with new high-definition LCD screens with updated graphics.  Unit 6 equipment shipped in May of 2009, Unit 7 in September of 2010 and Unit 5 will ship in February of 2011.

Sep  2010
Site Acceptance Testing Complete

The Alternate A/C Diesel Generator Control (AACDG) systems for Units 1 & 2 at both the Ulchin and Younggwang nuclear power plant sites (South Korea) have finished Site Acceptance status in September, 2010.

Sep  2010
Commercial Grade Item Dedication Project

HFC was awarded a multi-million dollars project for performing Commercial Grade Item Dedication for over 70 different types of items.  These items include switches, cables, monitors, commercial PC, software, etc., to be used for safety-critical applications in nuclear power plants.

Aug  2010
Sequence of Event System Completed

HF Controls has completed work on a new Sequence of Event (SOE) system with 1 mSec resolution to be installed at Shin Ulchin (South Korea) nuclear power plants Units 1 & 2 which supplements their existing Safety Control System.  This equipment will ship in December of 2010.

Mar  2010
Direct Replacement of Existing FPGA 8085 CPU Boards

HF Controls completed the direct replacement of existing CPU boards at the South Korean Younggwang nuclear power plant, Units 3 & 4 in March of 2010.  The existing AFS system was commissioned in 1994 and used AFS-SBC-01 CPU boards for all the loop controls.  HF Controls developed a new surface mount technology FPGA 8085 CPU compatible board, allowing our customer to simply remove more than 100 of the old CPU boards and directly replace them with the modern technology board, saving them considerable down time and money over any more extensive upgrade to their system.

Feb  2010
United States Nuclear Regulatory Commission (US NRC) Audits at Doosan HF Controls (HFC)

In October and December 2009, US NRC conducted two audits at the HFC, Carrollton, Texas facility. The audits were completed successfully. The majority of the safety and security qualifications of the HFC HFC-6000 safety control system were reviewed in great detail. These included:


i. Safety system qualification in accordance with EPRI TR 107330-1996 guidelines

ii. Security qualification in accordance with NRC Regulatory Guide 1.152, Rev. 2

iii. Safety software qualifications in accordance with EPRI 106439-1996

iv. Quality Assurance Corrective Action Program in related to 10CFR Appendix B program.


The next phase is a Request for Additional Information (RAI) phase, in which NRC will send HFC a formal RAI set of questions and HFC will respond with supporting documents. HFC has received the formal RAI dated February 1, 2010 and has responded dated February 19, 2010. After the RAI responses are finalized, the safety evaluation report (SER) is expected to be released in June 2010.

Jan  2010
Performance Testing Completed

Shin Kori Unit 1 nuclear power plant (South Korea) completed Performance Testing in January of 2010 and is expected to go into commission in November of 2010.  We anticipate finishing the same Performance Testing at Unit 2 in October of 2010.

Jun  2009
TUV SIL3 Certification

In June 2009, HFC-6000 Triple Modular Redundant (TMR) and Dual Modular Redundant (DMR) architecture were approved by TUV as qualified IEC 61508 SIL3 safety system in the conceptual assessment phase of the certification. (A SIL3 safety system has a 99.9999% of availability.) Main assessment will be performed in the 1st quarter of 2010. HFC is expected to complete the certification by the second quarter of 2010. (The delay was mainly due to the NRC audits during the fourth quarter of 2009 and 1st quarter of 2010. No major system issues held up the certification process.)

Feb  2009
Shin Kori Unit 2 ships on schedule

Unit 2 equipment for the Shin Kori project began shipping today, on schedule.  Shin Kori is part of a four-unit nuclear power generation project taking place in South Korea. This single unit has over 24,000 I/O points using HFControls HFC-6000 control system. No one in the world has as many controllers in the nuclear environment as does HFControls.


Jan  2008
***NEW Contract Award***

Doosan HF Controls Corporation has received a contract valued at over $2 million to provide two (2) AAC/DG Control Systems. The ECS-1200 platform for non-safety and the HFC6000 for Safety Related Controls will be supplied on four (4) 1000 Mw Nuclear Power Plants to replace the existing legacy AAC Diesel Generator controls.  These plants are located in South Korea.


This recent contract award reaffirms our dominance in the Korean nuclear market as the premiere digital control system provider.

Nov  2007
Doosan HF Controls Receives TUV Certification

Doosan HF Controls Corporation has received TUV certification for the ECS 05B controller for TMR applications and the ECS 06 controller for safety related systems in a 2 out of 3 configuration where the safe state is the de-energized state.

The test results indicate the controllers are suitable for safety related applications up to SIL 1 in reference to IEC 61508, parts 1-7:1998-2000.

A Case Study will soon be available for the project this system was implemented on.  If you would like a copy of this Case Study or require further information, contact us at 

Jul  2007
New Emergency Contact Number

Please note the 24 hour Emergency contact number has changed.  The NEW number is 214-493-9500.  Please make note of this change.

Jun  2007
HFC Published in ISA InTech

This article was printed in the June issue of ISA InTech magazine. It is a paper we presented at an ISA conference last year.  The article illustrates the system we supplied to the Ulchin 5 & 6 Nuclear power plant.




Jun  2007
Qual Cabinet Passes Testing

HF Controls is pleased to announce the successful completion of third party qualification testing of its HFC-6000 safety grade distributed control system.  The systems, scheduled for installation beginning in 2009 at the KHNP Shin-Kori 1-2 and Shin-Wolsong 1-2 nuclear power plants, will employ the latest advances of the already field-proven HFC-6000 hardware-software platform. 

The qualification tests successfully verified that the system is capable of surviving the worst credible seismic event as well as being tolerant to potential electrical disturbance fields and ambient thermal variations.  The picture below is of the qualification cabinets specifically built for the testing.