Automatic Plant Control For Starting And Shutdown(APS) Development And Implementation

Automatic Plant Control for Starting and Shutdown (APS) is a unit at the highest level of control system, which according to start and stop units in the different stages and a substantial load in the process of changing needs and conditions of the crew a comprehensive, accurate and rapid detection and to judge, to the various sub-control systems or equipment to issue control instructions, and the unit can be carried out under way in various states to start, until a stable load; or by long-term and short-term shutdown of two ways, the unit in any load gradually reduced to zero. Application of APS can effectively reduce the unreasonable fuel consumption as well as the working fluid to the master unit of heat stress impact and damage to equipment failure,Economic operation and equipment to improve safety, achieve the unit energy-saving and reduce pollution emissions.In this paper, a power plant, "the state of Unit # 4 automatic start and stop the study and implementation of the" Project for the background of thermal power plants outlined the history of automation technology, the key process and power plants to study each unit # 4 Start of technological features, dividing the necessary start-up phase and determine the point man. Detailed analysis of the Power Plant Unit 4 automatic start and stop the state control system engineering requirements for the overall system design, hardware design and software functional design,Including the distribution system database, functional specification preparation, configuration logic, on-site commissioning; completed the design of the system configuration and simulator debugging, including the flow chart of the screen, sequential control step sequence, an important control loop configuration and debugging the relevant process alarm, trends, reports, configuration and debugging. The APS control system project has been put into practical operation, and achieved good effect, not only greatly improve the # 4 unit of the automatic control and management, while ensuring the stability of the production technology and highly efficient operation to provide a guarantee.