Let’s discuss the applications of Woodward, ITCC, and CCC in China
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As the title suggests: I would like to know the respective advantages of these three control systems, as well as their applications in some important projects in China. I hope experienced professionals in instrumentation will participate.
Woodward, ItCC, CCCC – the owners of these companies are really excellent; I think these three are the best in terms of aircraft control, though each has its own strengths. Woodward is used for steam turbine speed control. ITCC has the most applications in China, offering integrated control for speed regulation and air compressor anti-surge systems; CCC boasts the best technology, but it has few applications domestically.
Is ITCC a brand similar to CCC?
It’s not ITCC; it probably isn’t a manufacturer either. Hehe, Kangjisen in China does a pretty good job.
ITCC: The Integrated Turbomachinery and Compressor Control System, that is, the unit control system, should include five modules: an emergency shutdown function, an anti-surge function for the unit, an overspeed protection function, an automatic startup function for the unit, and a unit control function. Woodward and CCC are traditional unit control manufacturers; the 505 governor, which is still on the market today, is a product of Woodward. The ITCC concept was introduced in recent years; it involves combining automatic control systems with traditional mechanical controls in order to achieve the control and protection of power units. Popular ITCC systems include TRICON, GE, and Siemens; TRICON performs better in terms of performance, while all of them meet the required functional specifications. TRICON seems to have an advantage in automated control systems; they were the first to introduce the triple-redundancy concept ； Woodward and CCC don’t have their own control systems; they operate by partnering with other manufacturers, I’m not entirely sure ； GE has a comprehensive range of technologies, with strong capabilities in both machinery and control systems.
ITCC: It is mainly the TRCON TS3000 system, which features the ability to integrate interlock ESD with unit control, that is, ITCC. One card is divided into three channels; this so-called triple configuration is also its biggest selling point. It is widely available in the domestic market. However, an independent control panel is required; static interlock control and dynamic control operations are integrated within one system, and an electronic 3-out-of-2 overspeed trip system is also needed. Woodward commonly uses model 505, which is also very effective; it’s used for speed control and needs to be used in conjunction with ESD. By making hard connections to DCS and ESD, remote control and interlock functions can be effectively implemented. Its advantage lies in the fact that operations can be carried out on the DCS without the need for a separate TRCON console, which makes things more convenient. CCC is a unit control system that lacks interlock control; it is effective for managing complex units. It is designed specifically for unit control, and it is also possible to determine the surge point on-site. It offers good energy-saving effects, especially when there are significant errors in the unit’s surge point. Series 5 is used in China, while Series 3+ is still widely used abroad. It has to be carried out in collaboration with ESD manufacturers, which imposes constraints and results in poor competitiveness. GE’s systems are also affected by competition, with more complete sets being offered.
505/505E: Its main application is in the speed control systems of steam turbines; its advantage is simplicity and low cost, while its disadvantage is its overly limited functionality. ITCC: A comprehensive large-scale unit that can implement various functions of turbines and compressor sets, including monitoring, logic, control, and more ； In particular, the SOE function plays a prominent role in large turbine units or ESDs. It is the most comprehensive integrated control system available at present. CCC: Less practical than ITCC.
Due to the high prices, CCC not only sells hardware but also offers engineering services (including compressor process calculations); as a result, they are unable to compete with Kangjisen on new projects in China. But because the technology is indeed excellent, in renovation projects they often bid together with HIMA, and the results are very good.
CCC’s technology should be good, and the hardware is excellent as well
I had never heard of CCC before; I was only familiar with HIMA and ITCC. I learned about it here*