China’s power generation companies have long favored distributed control systems of the Symphony family. Recent orders from China Resources Power Holdings and Shenua Group are three of the most recent.
ABB to automate China’s largest clean coal power project
Wanzhou Power Plant is part of a huge $3.77 billion investment that Shenhua Group, the world’s largest coal company, is making in a new power generation and coal storage complex on the banks of the Yangtze River in the city of Wanzhou.
Wanzhou is part of Chongqing Municipality, one of China’s fastest growing regional economies. Chongqing registered 20.4 percent growth in gross domestic product (GDP) in 2012, the second highest in the country. It also has a large power deficit of more than 4,000 megawatts (MW).
Filling this power deficit is vital to the future growth prospects of Chongqing. One of the most important projects in the municipality’s current five-year plan is the Wanzhou Power Plant complex. When completed, the complex will consist of six 1,000 MW ultra-supercritical power plant units, a 10,000 metric ton coal storage base and an unloading wharf on the Yangtze. It will be the largest clean coal power plant in China.
Phase 1 of the project will comprise two 1,000 MW ultra-supercritical units. Each unit will operate at the highest possible efficiency level of 45-48 percent and have a low pollution level that complies with United Nations CDM (Clean Development Mechanism) standards.
For this world-class power plant, Shenhua Group required an automation system capable of handling one of the largest PROFIBUS fieldbus installations in China.
“Our goal is to build a highly integrated and completely automated power plant operating at the highest level of effi ciency, with low emissions and a high rate of profi tability,” says Zhou Sen, Thermal responsible of Wanzhou Power Plant. “Following an assessment and market comparison
of its capacity and capabilities, we found that Symphony Plus will best help us to meet those requirements.”
The Symphony® Plus solution will monitor, control and optimize the entire production process at the fi rst two units of the complex – from the boilers, turbines and generators to the desulphurization and emission monitoring systems, electrical systems and balance of plant, including the water treatment and coal transportation systems.
The solution is based on ABB’s HPC800 process controllers and PDP800 PROFIBUS interface modules. It will provide Shenhua Group with a highly integrated plant-wide automation system that has a unique capacity to manage intelligent fi eld devices in large fi eldbus installations of this size and complexity.
Symphony Plus is ABB’s flagship automation platform for the power, water and process industries. Designed to meet a wide range of plant confi gurations, its flexibility and scalability make it ideal for small and server-less applications as well as for large multi-system, multi-server architectures. It supports the seamless integration of fi eld devices, process and turbine automation systems, electrical and SCADA (supervisory control and data acquisition) solutions as well as business and maintenance systems, providing a secure and reliable control environment.
Unit 1 of the Wanzhou Power Plant will start production in December 2014 and unit 2 in February 2015.
With more than 6,500 systems installed over more than three decades, the Symphony family has one of the largest installed bases of distributed control systems in the world.
Haifeng ultra-supercritical power plant
ABB has been selected by China Resources Power Holdings Company, one of the biggest power companies in China, to supply Symphony® Plus total plant automation systems for two 1,000 MW units at the Haifeng Power Plant in Guangdong province.
The two units constitute phase 1 of a project that will eventually comprise eight 1,000 MW units. Each of the two ultra-supercritical units will operate at very high levels of efficiency, reliability and availability.
The Symphony Plus solutions will monitor and control the entire production process at the fi rst two units, from the boilers, turbines, and generators to the desulphurization and emission monitoring systems, electrical systems and balance of plant, including the water treatment and coal transportation systems.
The solution is based on ABB’s highperformance, high-capacity HPC800 process controllers. It will provide Haifeng Power Plant with tighter and more reliable process control and greater visibility of plant operations for all users of plant data. HPC800 will also lower the system installation and maintenance costs through its small footprint, reduced field wiring, simplified and repeatable engineering, and shorter project schedules.
The first unit is scheduled to start operations at the end of 2014.
Anqing clean coal project
BB has won a contract from China Shenhua Group to supply Symphony® Plus total plant automation systems for two 1,000 MW coal-fired units at the Anqing Power Plant in Anhui province, China.
Anqing is a transportation center located midway between Shanghai and Wuhan on the Yangtze River. The city is undergoing rapid economic development and has a huge shortfall in power generation that the two units will help to reduce.
Anqing Power Plant comprises two phases. Phase 1 consists of two 300 MW units, which have been in operation since 2005. In addition to the two new 1,000 MW units, phase 2 consists of a coal wharf with an annual loading capacity of 6 million tons.
The two units are scheduled to start production in December 2014 and February 2015 respectively.