励磁系统是发电机组重要设备，主要作用是调节励磁，以维持定子电压稳定；合理分配各台机组间无功功率；在发生短路时，强行励磁以提高系统动态稳定能力、提高输送功率极限、扩大静态稳定运行的范围。励磁系统对提高发电厂的自动化水平、发电机组运行的可靠性、电力系统的稳定性有着重要的作用。随着现代科学技术的发展，励磁方式已从直流电机励磁发展到可控硅励磁，在微机自并励静止可控硅整流励磁系统中，发电机的励磁电流是由机端的励磁变压器经过可控硅整流装置整流后供给，自动励磁调节器直接调节发电机的励磁电流以实现自动调整发电机机端电压或无功功率，这种励磁系统具有调节速度快、调节精度高的特点，已成为励磁系统发展的主流
PPD512
ABB励磁PPD512 A10-15000 3BHE040375R1023控制器AC 800PEC，高需求的AC 800PEC提供了独特的功能组合在苛刻的应用中需要： 循环时间短至100μs 高处理能力 快速通信和I/O 编程工具： 使用IEC61131-3语言进行系统工程ABB的Control Builder（紧凑型或专业型）使用MATLAB开发产品和控制/用于基于模型的设计从模拟到实施的差距 完全集成到ABB系统800xA中 创新灵活地使用FPGA，以包括协议和应用程序功能创建额外的处理器负载 光通信 无移动部件的工业级硬件 寿命长，易于升级广泛应用于工业、公用事业、牵引、船舶和其他领域应用。因此，AC 800PEC是一个关键控制器适用于ABB自己的工业应用范围，也适用于第三方产品和系统。AC 800PEC是一个高效灵活的控制器系列。由于其周期短、I/O速度快、处理速度快使用MATLAB/Simulink。
PPD512
AC800性能系统应用变频器主要功能特点：AC800PEC系列PPD512 A10-15000供应ABB静态励磁系统控制器电流环预测控制算法控制器内置硬件浮点单元，优化程序执行效率内置30余种常用的应用功能模块。例如：卷曲控制，转矩控制，牵引控制和级联控制等可自由调用的全功能PID模块4路模拟量输入，2路模拟量输出，完全可编程8路光耦隔离开关量输入，6路输出，完全可编程。标配2路Canbus接口，支持CanOpen协议标配2路RS232，2路RS485接口支持多种现场总线(选配)，包括Profibus, EtherNet, DeviceNet等标配的内部磁场控制标配PG卡(编码器反馈卡)2层保护报警和警告完全汉化的上位机软件和中英文控制面板。
PPD512
The excitation system is an important equipment of the generator set, and its main function is to regulate excitation to maintain stator voltage stability; Reasonably allocate reactive power between each unit; When a short circuit occurs, forced excitation is used to improve the dynamic stability ability of the system, increase the transmission power limit, and expand the range of static stable operation. The excitation system plays an important role in improving the automation level of power plants, the reliability of generator unit operation, and the stability of the power system. With the development of modern science and technology, the excitation method has evolved from DC motor excitation to thyristor excitation. In the microcomputer self parallel excitation static thyristor rectifier excitation system, the excitation current of the generator is supplied by the excitation transformer at the generator end after being rectified by the thyristor rectifier device. The automatic excitation regulator directly regulates the excitation current of the generator to achieve automatic adjustment of the generator terminal voltage or reactive power, This excitation system has the characteristics of fast regulation speed and high regulation accuracy, and has become the mainstream of excitation system development
PPD512
ABB excitation PPD512 A10-15000 3BHE040375R1023 controller AC 800PEC, the high demand AC 800PEC provides a unique combination of functions required in demanding applications: cycle time as short as 100 μ High processing power, fast communication, and I/O programming tools: Use IEC61131-3 language for system engineering. ABB’s Control Builder (compact or professional) uses MATLAB to develop products and controls. For model-based design, the gap from simulation to implementation is fully integrated into ABB system 800xA. Innovative and flexible use of FPGA, Industrial grade hardware that includes protocols and application functions to create additional processor loads for optical communication without mobile components has a long lifespan and is easy to upgrade, widely used in industrial, utility, traction, shipbuilding, and other fields. Therefore, the AC 800PEC is a key controller suitable for ABB’s own industrial application range, as well as for third-party products and systems. The AC 800PEC is an efficient and flexible controller series. Due to its short cycle, fast I/O speed, and fast processing speed, MATLAB/Simulink is used.
PPD512
AC800 performance system application frequency converter main functional features: AC800PEC series PPD512 A10-15000 supply ABB static excitation system controller current loop predictive control algorithm controller built-in hardware floating point unit, optimization program execution efficiency built-in more than 30 commonly used application function modules. For example, fully functional PID modules such as curl control, torque control, traction control, and cascade control can be freely called, with 4 analog inputs, 2 analog outputs, fully programmable 8 optocoupler isolation switch inputs, 6 outputs, and fully programmable. Standard configuration of 2-way Canbus interface, support for CanOpen protocol, standard configuration of 2-way RS232, and 2-way RS485 interface support multiple field buses (optional), including Profibus, EtherNet, DeviceNet, and other standard internal magnetic field control. Standard configuration of PG card (encoder feedback card), 2-layer protection alarm and warning fully Chinese upper computer software, and Chinese and English control panel.
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