CN109885023B - A semi-physical simulation test system for gas turbine control system - Google Patents
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Abstract
本发明公开了一种燃气轮机控制系统半物理仿真试验系统，用以验证燃气轮机控制系统在燃气轮机全工况下的工作性能和长期运行稳定性，以及评估燃气轮机控制系统在燃气轮机极端工况、故障工况下的工作可靠性和环境适应性；该系统包括经通信接口及网络相互连接的燃气轮机控制系统、燃气轮机物理仿真模型和燃气轮机数学仿真模型；所述燃气轮机物理仿真模型包括转速监测试验台、IGV调节测试台、模拟润滑油系统、模拟燃料系统和模拟空气系统。该试验系统大大降低了燃气轮机控制系统在开发测试时的成本和风险性，在燃气轮机控制系统的性能验证和可靠性评估方面具有广泛的应用价值。
The invention discloses a semi-physical simulation test system of a gas turbine control system, which is used for verifying the working performance and long-term operation stability of the gas turbine control system under the full working conditions of the gas turbine, and for evaluating the gas turbine control system in the extreme working conditions and fault working conditions of the gas turbine. The system includes a gas turbine control system, a gas turbine physical simulation model and a gas turbine mathematical simulation model interconnected through a communication interface and a network; the gas turbine physical simulation model includes a speed monitoring test bench, an IGV adjustment test bench, simulated lubricating oil system, simulated fuel system and simulated air system. The test system greatly reduces the cost and risk of gas turbine control system development and testing, and has extensive application value in performance verification and reliability evaluation of gas turbine control systems.
Description
技术领域technical field
本发明涉及仿真试验技术领域，具体涉及一种燃气轮机控制系统半物理仿真试验系统。The invention relates to the technical field of simulation test, in particular to a semi-physical simulation test system of a gas turbine control system.
背景技术Background technique
燃气轮机控制系统是燃气轮机技术中的关键核心部分，应具备适应性强，可靠性高、响应迅速等多项特点。随着燃气轮机技术的发展不断升级完善，燃气轮机控制系统工作时涉及到的运行数据和控制对象也日益增多，因此，如何搭建燃气轮机控制系统试验系统来验证燃气轮机控制系统的性能尤为重要。目前燃气轮机控制系统试验系统通常采用真实燃气轮机或者燃气轮机数学模型作为被控制对象，但真实燃气轮机存在建设周期长、成本高、在极端工况下运行有设备和人员损坏风险的缺点，燃气轮机数学模型存在精确程度低，只能计算少量工况和部分运行数据的缺点。The gas turbine control system is a key core part of gas turbine technology, and should have many characteristics such as strong adaptability, high reliability, and rapid response. With the continuous upgrading and improvement of gas turbine technology, the operation data and control objects involved in the operation of the gas turbine control system are also increasing. Therefore, how to build a gas turbine control system test system to verify the performance of the gas turbine control system is particularly important. At present, the test system of gas turbine control system usually adopts real gas turbine or gas turbine mathematical model as the controlled object. However, real gas turbine has the disadvantages of long construction period, high cost, and the risk of damage to equipment and personnel when running under extreme conditions. The degree is low, and only a small number of operating conditions and some operating data can be calculated.
发明内容SUMMARY OF THE INVENTION
本发明针对当前燃气轮机控制系统试验系统存在的缺点，提出一种用燃气轮机半物理仿真模型替代真实燃气轮机或燃气轮机数学模型的试验系统，用以验证燃气轮机控制系统在燃气轮机全工况下的工作性能和长期运行稳定性，以及评估燃气轮机控制系统在燃气轮机极端工况、故障工况下的工作可靠性和环境适应性。该系统减少了燃气轮机控制系统试验系统的研发成本、缩短了建设周期、避免了设备和人员的风险，提高了燃气轮机控制系统试验系统的准确性和可靠性。Aiming at the shortcomings of the current gas turbine control system test system, the present invention proposes a test system that replaces the real gas turbine or gas turbine mathematical model with a gas turbine semi-physical simulation model to verify the working performance and long-term performance of the gas turbine control system under the full operating conditions of the gas turbine. Operational stability, as well as evaluating the working reliability and environmental adaptability of gas turbine control systems under extreme gas turbine operating conditions and fault conditions. The system reduces the research and development cost of the gas turbine control system test system, shortens the construction period, avoids the risks of equipment and personnel, and improves the accuracy and reliability of the gas turbine control system test system.
为实现上述目的，本发明采用的技术方案为：To achieve the above object, the technical scheme adopted in the present invention is:
一种燃气轮机控制系统半物理仿真试验系统，包括经通信接口及网络相互连接的燃气轮机控制系统、燃气轮机物理仿真模型和燃气轮机数学仿真模型；A gas turbine control system semi-physical simulation test system, comprising a gas turbine control system, a gas turbine physical simulation model and a gas turbine mathematical simulation model interconnected via a communication interface and a network;
所述燃气轮机物理仿真模型包括转速监测试验台、IGV调节测试台、模拟润滑油系统、模拟燃料系统和模拟空气系统，用于模拟燃气轮机实际运行过程并测量运行参数，以及将测量得到的运行参数数据传递给燃气轮机控制系统和燃气轮机数学仿真模型；The gas turbine physical simulation model includes a rotational speed monitoring test bench, an IGV adjustment test bench, a simulated lubricating oil system, a simulated fuel system, and a simulated air system, which are used to simulate the actual operation process of the gas turbine and measure the operating parameters, as well as the measured operating parameter data. Passed to gas turbine control system and gas turbine mathematical simulation model;
所述燃气轮机数学仿真模型基于燃气轮机的特性曲线进行计算机建模仿真，用于计算燃气轮机在全工况和极端工况下的动力学与热力学运行数据，以及接收所述燃气轮机控制系统的控制信号并将运行数据反馈给燃气轮机控制系统；The mathematical simulation model of the gas turbine performs computer modeling and simulation based on the characteristic curve of the gas turbine, and is used to calculate the dynamic and thermodynamic operation data of the gas turbine under full operating conditions and extreme operating conditions, and to receive the control signal of the gas turbine control system and send it to the gas turbine. The operation data is fed back to the gas turbine control system;
所述燃气轮机控制系统用于控制所述燃气轮机物理仿真模型和燃气轮机数学仿真模型的运行数据在全工况和极端工况下均在燃气轮机控制系统预设的数值范围内变化。The gas turbine control system is used to control the operating data of the gas turbine physical simulation model and the gas turbine mathematical simulation model to vary within a numerical range preset by the gas turbine control system under full operating conditions and extreme operating conditions.
进一步的，所述转速监测试验台用于模拟燃气轮机转子的实际转动效果，包括用于模拟燃气轮机转子转动的测速圆盘、用于带动所述测速圆盘高速旋转的可调速电机、用于连接所述可调速电机与测速圆盘的联轴器和轴承，以及用于测量测速圆盘实际转速的转速探头；其中，所述可调速电机与燃气轮机数学仿真模型通讯连接，根据燃气轮机数学仿真模型计算出的燃气轮机转子转速数据调节自身转速，带动测速圆盘进行高速旋转并模拟燃气轮机转子的实际转动效果；所述转速探头与燃气轮机控制系统通讯连接，用于测量测速圆盘的转速数据并将该数据传递给燃气轮机控制系统。Further, the rotational speed monitoring test bench is used to simulate the actual rotation effect of the gas turbine rotor, including a speed measuring disc for simulating the rotation of the gas turbine rotor, a speed-adjustable motor for driving the speed measuring disc to rotate at a high speed, and a speed-adjustable motor for connecting The coupling and bearing between the speed-adjustable motor and the speed-measuring disc, and the speed probe for measuring the actual speed of the speed-measuring disc; wherein, the speed-adjustable motor is connected in communication with the mathematical simulation model of the gas turbine, according to the mathematical simulation of the gas turbine The gas turbine rotor speed data calculated by the model adjusts its own speed, drives the speed measuring disc to rotate at a high speed and simulates the actual rotation effect of the gas turbine rotor; the speed probe is connected to the gas turbine control system for communication and is used to measure the speed measuring disc. This data is passed to the gas turbine control system.
进一步的，所述IGV调节测试台用于模拟燃气轮机进气可调导叶系统调节IGV开度的过程，包括进气可调导叶，用于驱动进气可调导叶的伺服装置，连接所述伺服装置与进气可调导叶的传动机构，用于测量伺服装置运动行程的线位移传感器，用于测量进气可调导叶旋转角度的角位移传感器；其中，所述伺服装置与燃气轮机控制系统通讯连接，在燃气轮机控制系统的控制下通过所述传动机构调节进气可调导叶的旋转角度；所述线位移传感器与燃气轮机控制系统和燃气轮机数学仿真模型通讯连接，用于测量伺服装置的运动行程并将数据传递给燃气轮机控制系统和燃气轮机数学仿真模型；所述角位移传感器与燃气轮机控制系统和燃气轮机数学仿真模型通讯连接，用于测量进气可调导叶的实际角度并将数据传递给燃气轮机控制系统和燃气轮机数学仿真模型。Further, the IGV adjustment test bench is used to simulate the process of adjusting the IGV opening of the gas turbine intake adjustable guide vane system, including the intake adjustable guide vane, the servo device for driving the intake adjustable guide vane, and the connection The servo device and the transmission mechanism of the intake adjustable guide vane, the linear displacement sensor used to measure the motion stroke of the servo device, and the angular displacement sensor used to measure the rotation angle of the intake adjustable guide vane; wherein, the servo device and the gas turbine The control system is communicatively connected, and the rotation angle of the intake adjustable guide vane is adjusted through the transmission mechanism under the control of the gas turbine control system; the linear displacement sensor is communicatively connected with the gas turbine control system and the gas turbine mathematical simulation model, and is used to measure the servo device The motion travel of the gas turbine and the data are transmitted to the gas turbine control system and the gas turbine mathematical simulation model; the angular displacement sensor is connected in communication with the gas turbine control system and the gas turbine mathematical simulation model to measure the actual angle of the intake adjustable guide vane and transmit the data For gas turbine control system and gas turbine mathematical simulation model.
进一步的，所述模拟润滑油系统用于模拟燃气轮机润滑油系统供给润滑油的过程，包括用于为润滑油系统供给润滑油的主润滑油泵、用于在主润滑油泵工作异常时供给润滑油的备润滑油泵、用于在主润滑油泵和备润滑油泵均无法工作时供给润滑油的事故润滑油泵，以及用于维持油箱真空度的油雾风机；所述主润滑油泵、备润滑油泵、事故润滑油泵和油雾风机均与燃气轮机控制系统和燃机轮机数学仿真模型通讯连接，根据燃气轮机控制系统传递的控制信号完成油泵和风机的启停动作，并将启停状态数据传递给燃气轮机数学仿真模型。Further, the simulated lubricating oil system is used to simulate the process of supplying lubricating oil to the lubricating oil system of the gas turbine, including a main lubricating oil pump for supplying lubricating oil to the lubricating oil system, and a main lubricating oil pump for supplying lubricating oil when the main lubricating oil pump works abnormally. A spare lubricating oil pump, an accident lubricating oil pump for supplying lubricating oil when both the main lubricating oil pump and the spare lubricating oil pump cannot work, and an oil mist fan for maintaining the vacuum degree of the oil tank; the main lubricating oil pump, the spare lubricating oil pump, the accident lubricating oil pump Both the oil pump and the oil mist fan are connected in communication with the gas turbine control system and the gas turbine mathematical simulation model. According to the control signal transmitted by the gas turbine control system, the oil pump and the fan are started and stopped, and the start and stop status data are transmitted to the gas turbine mathematical simulation model.
进一步的，所述模拟燃料系统用于模拟燃气轮机燃料系统供给气体燃料的过程，包括用于调节燃料供给系统出口压力的压力控制阀、用于调节燃料供给系统出口流量的流量控制阀、用于在紧急状态下关闭燃料供应的燃料速关阀；所述压力控制阀与燃气轮机控制系统和燃气轮机数学仿真模型通讯连接，用于接收燃气轮机控制系统的控制信号并根据控制信号调节燃料供给系统出口压力，同时将出口压力信号传递给燃气轮机数学仿真模型；所述流量控制阀与燃气轮机控制系统和燃气轮机数学仿真模型通讯连接，用于接收燃气轮机控制系统的控制信号并根据控制信号调节燃料供给系统出口流量，同时将出口流量信号传递给燃气轮机数学仿真模型；所述燃料速关阀与燃气轮机控制系统和燃气轮机数学仿真模型通讯连接，用于接收燃气轮机控制系统的控制信号并根据控制信号完成开启或关闭动作，同时将自身的开启或关闭状态传递给燃气轮机数学仿真模型。Further, the simulated fuel system is used to simulate the process of supplying gas fuel by the fuel system of the gas turbine, and includes a pressure control valve for adjusting the outlet pressure of the fuel supply system, a flow control valve for adjusting the outlet flow of the fuel supply system, and a pressure control valve for adjusting the outlet flow of the fuel supply system. A fuel quick shut-off valve for closing the fuel supply in an emergency state; the pressure control valve is connected in communication with the gas turbine control system and the gas turbine mathematical simulation model, and is used for receiving the control signal of the gas turbine control system and adjusting the outlet pressure of the fuel supply system according to the control signal, and at the same time The outlet pressure signal is transmitted to the gas turbine mathematical simulation model; the flow control valve is connected in communication with the gas turbine control system and the gas turbine mathematical simulation model, and is used for receiving the control signal of the gas turbine control system and adjusting the outlet flow of the fuel supply system according to the control signal. The outlet flow signal is transmitted to the gas turbine mathematical simulation model; the fuel quick-closing valve is connected in communication with the gas turbine control system and the gas turbine mathematical simulation model, and is used to receive the control signal of the gas turbine control system and complete the opening or closing action according to the control signal, and at the same time itself The on or off state is passed to the gas turbine mathematical simulation model.
进一步的，所述模拟空气系统用于模拟燃气轮机的空气系统从压气机抽取空气的过程，包括高压抽气阀、中压抽气阀、低压抽气阀；所述高压抽气阀、中压抽气阀、低压抽气阀分别与燃气轮机控制系统和燃气轮机数学仿真模型通讯连接，用于接收燃气轮机控制系统的控制信号并根据控制信号完成开启或关闭动作，同时将自身的开启或关闭状态传递给燃气轮机数学仿真模型。Further, the simulated air system is used to simulate the process of the air system of the gas turbine extracting air from the compressor, including a high-pressure extraction valve, a medium-pressure extraction valve, and a low-pressure extraction valve; the high-pressure extraction valve, the medium-pressure extraction valve, and the The gas valve and the low-pressure suction valve are respectively connected to the gas turbine control system and the gas turbine mathematical simulation model for communication and connection. They are used to receive the control signal of the gas turbine control system and complete the opening or closing action according to the control signal, and at the same time transmit their own opening or closing status to the gas turbine. Mathematical simulation model.
进一步的，所述燃气轮机物理仿真模型还包括信号发生器，所述信号发生器与燃气轮机控制系统和燃气轮机数学仿真模型通讯连接，用于模拟燃气轮机的机械故障、部件工作异常及燃气轮机变工况的异常运行数据和报警信息，并将所述异常运行数据和报警信息传递到燃气轮机控制系统和燃气轮机数学仿真模型。Further, the gas turbine physical simulation model also includes a signal generator, the signal generator is in communication connection with the gas turbine control system and the gas turbine mathematical simulation model, and is used to simulate the mechanical failure of the gas turbine, the abnormal operation of the components and the abnormality of the gas turbine variable working conditions. operation data and alarm information, and transmit the abnormal operation data and alarm information to the gas turbine control system and the gas turbine mathematical simulation model.
进一步的，所述燃气轮机控制系统还配置有计时装置，所述计时装置与IGV调节测试台中的伺服装置、模拟润滑油系统中的主润滑油泵、备润滑油泵、事故润滑油泵和油雾风机、模拟燃料系统中的压力控制阀、流量控制阀和燃料速关阀、模拟空气系统中的高压抽气阀、中压抽气阀、低压抽气阀通讯连接，用于测量从燃气轮机控制系统发出控制指令到如上所述设备完成相应控制动作所需的设备动作时间数据。Further, the gas turbine control system is also equipped with a timing device, the timing device and the servo device in the IGV adjustment test bench, the main lubricating oil pump in the simulated lubricating oil system, the standby lubricating oil pump, the accident lubricating oil pump and the oil mist fan, simulation Pressure control valve, flow control valve and fuel quick shut-off valve in the fuel system, high pressure suction valve, medium pressure suction valve, low pressure suction valve in the simulated air system communication connection, used to measure the control command sent from the gas turbine control system The device action time data required by the device to complete the corresponding control action as described above.
进一步的，所述燃气轮机数学仿真模型中包括燃气轮机故障仿真模型，用于在燃气轮机数学仿真模型中模拟燃气轮机机械故障或部件工作异常出现的故障工况，并计算燃气轮机在故障工况下的运行数据。Further, the gas turbine mathematical simulation model includes a gas turbine fault simulation model, which is used for simulating the gas turbine mechanical failure or the fault condition of abnormal component operation in the gas turbine mathematical simulation model, and calculating the gas turbine operation data under the fault condition.
进一步的，所述燃气轮机数学仿真模型还配置有计时功能模块，用于测量从燃气轮机故障仿真模型进入故障工况，到燃气轮机控制系统发出控制指令对燃气轮机物理仿真模型和燃气轮机数学仿真模型的运行数据进行调节，最终到燃气轮机数学仿真模型解除故障工况为止，燃气轮机控制系统所需的响应时间数据。Further, the gas turbine mathematical simulation model is also equipped with a timing function module, which is used to measure the operation data of the gas turbine physical simulation model and the gas turbine mathematical simulation model from the gas turbine fault simulation model entering the fault condition until the gas turbine control system issues a control command. Adjustment, and finally until the gas turbine mathematical simulation model removes the fault condition, the response time data required by the gas turbine control system.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
1、所述燃气轮机控制系统半物理仿真试验系统减少了燃气轮机控制系统试验系统的研发成本、缩短了建设周期、避免了设备和人员的风险，提高了燃气轮机控制系统试验系统的准确性和可靠性；1. The gas turbine control system semi-physical simulation test system reduces the research and development cost of the gas turbine control system test system, shortens the construction period, avoids the risks of equipment and personnel, and improves the accuracy and reliability of the gas turbine control system test system;
2、所述燃气轮机控制系统半物理仿真试验系统可以针对燃气轮机运行的全工况、变工况、极端工况、故障工况均做出准确的仿真，能够更全面准确地对燃气轮机控制系统的性能进行评估；2. The semi-physical simulation test system of the gas turbine control system can accurately simulate the full operating conditions, variable operating conditions, extreme operating conditions and fault operating conditions of the gas turbine operation, and can more comprehensively and accurately evaluate the performance of the gas turbine control system. to evaluate;
3、所述燃气轮机控制系统半物理仿真试验系统可以测量在出现故障工况时，从产生故障工况到燃气轮机控制系统产生控制指令并解除故障工况的具体响应时间，有利于燃气轮机控制系统的不断升级和优化；3. The semi-physical simulation test system of the gas turbine control system can measure the specific response time from the occurrence of the fault condition to the generation of the control command and the removal of the fault condition by the gas turbine control system when the fault condition occurs, which is beneficial to the continuous operation of the gas turbine control system. upgrades and optimizations;
4、所述燃气轮机控制系统半物理仿真试验系统的被控制对象是一个完整的燃气轮机仿真模型，因此通过所述燃气轮机控制系统半物理仿真试验系统验证和评估的燃气轮机控制系统可以直接移植到真实燃气轮机中使用，大大缩短了燃气轮机控制系统的开发周期。4. The controlled object of the gas turbine control system semi-physical simulation test system is a complete gas turbine simulation model, so the gas turbine control system verified and evaluated by the gas turbine control system semi-physical simulation test system can be directly transplanted into the real gas turbine It greatly shortens the development cycle of the gas turbine control system.
附图说明Description of drawings
图1为本发明的燃气轮机控制系统半物理仿真试验系统第一种实施例的组成及连接关系示意图。FIG. 1 is a schematic diagram of the composition and connection relationship of the first embodiment of the semi-physical simulation test system of the gas turbine control system of the present invention.
图2为本发明的燃气轮机控制系统半物理仿真试验系统第二种实施例的组成及连接关系示意图。FIG. 2 is a schematic diagram of the composition and connection relationship of the second embodiment of the semi-physical simulation test system of the gas turbine control system of the present invention.
图3为本发明的燃气轮机控制系统半物理仿真试验系统第三种实施例的组成及连接关系示意图。3 is a schematic diagram of the composition and connection relationship of the third embodiment of the gas turbine control system semi-physical simulation test system of the present invention.
具体实施方式Detailed ways
为使本发明的目的、技术方案及优点更加清楚明白，以下参照附图并举实施例，对本发明进一步详细说明，以使本发明的优点和特征能更易于被本领域技术人员理解。需要说明的是，以下所述仅为本发明的较佳实施例，并不因此而限定本发明的保护范围。实际上，在未背离本发明的范围或精神的情况下，可以在本发明中进行各种修改和变化，这对本领域技术人员来说将是显而易见的。例如，作为一个实施例的一部分示出或描述的特征可以与另一个实施例一起使用来产生又一个实施例。因此，意图是本发明将这样的修改和变化包括在所附的权利要求书和它们的等同物的范围内。In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, so that the advantages and characteristics of the present invention can be more easily understood by those skilled in the art. It should be noted that, the following descriptions are only preferred embodiments of the present invention, which do not limit the protection scope of the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the inventions. For example, features shown or described as part of one embodiment can be used with another embodiment to yield yet another embodiment. Therefore, it is intended that the present invention include within the scope of the appended claims and their equivalents such modifications and variations.
实施例一Example 1
如图1所示，一种燃气轮机控制系统半物理仿真试验系统，包括控制系统和仿真系统，控制系统包括燃气轮机控制系统和人机接口站，仿真系统包括燃气轮机物理仿真模型和燃气轮机数学仿真模型。As shown in Figure 1, a gas turbine control system semi-physical simulation test system includes a control system and a simulation system, the control system includes a gas turbine control system and a man-machine interface station, and the simulation system includes a gas turbine physical simulation model and a gas turbine mathematical simulation model.
其中，燃气轮机控制系统、燃气轮机物理仿真模型和燃气轮机数学仿真模型经通信接口及系统控制网络相互连接。所述系统控制网络可选为双冗余环形工业以太网，采用TCP/IP协议完成各点之间数据交换和通讯，并通过安全网络隔离装置实现数据高级管理和共享。Among them, the gas turbine control system, the gas turbine physical simulation model and the gas turbine mathematical simulation model are connected to each other through the communication interface and the system control network. The system control network can be optionally a dual-redundant ring industrial Ethernet, and the TCP/IP protocol is used to complete data exchange and communication between various points, and advanced data management and sharing are realized through a secure network isolation device.
燃气轮机物理仿真模型包括转速监测试验台、IGV调节测试台、模拟润滑油系统、模拟燃料系统、模拟空气系统，用于模拟燃气轮机实际运行过程并测量运行参数，以及将测量得到的运行参数数据传递给燃气轮机控制系统和燃气轮机数学仿真模型；燃气轮机控制系统还配置有信号发生器，用于模拟燃气轮机的机械故障、部件工作异常及燃气轮机变工况的异常运行数据和报警信息，并将所述异常运行数据和报警信息传递到燃气轮机控制系统和燃气轮机数学仿真模型。The gas turbine physical simulation model includes a speed monitoring test bench, an IGV adjustment test bench, a simulated lubricating oil system, a simulated fuel system, and a simulated air system, which are used to simulate the actual operation process of the gas turbine and measure the operating parameters, and transmit the measured operating parameter data to the system. The gas turbine control system and the gas turbine mathematical simulation model; the gas turbine control system is also equipped with a signal generator, which is used to simulate the abnormal operation data and alarm information of the mechanical failure of the gas turbine, the abnormal operation of the components and the variable working conditions of the gas turbine, and the abnormal operation data And the alarm information is transmitted to the gas turbine control system and the gas turbine mathematical simulation model.
燃气轮机数学仿真模型基于燃气轮机的特性曲线进行计算机建模仿真，用于计算燃气轮机在全工况和极端工况下的动力学与热力学运行数据，以及接收所述燃气轮机控制系统的控制信号并将运行数据反馈给燃气轮机控制系统；燃气轮机数学仿真模型还配置有燃气轮机故障仿真模型，用于在燃气轮机数学仿真模型中模拟燃气轮机机械故障或部件工作异常出现的故障工况，并计算燃气轮机在故障工况下的运行数据。The mathematical simulation model of the gas turbine performs computer modeling and simulation based on the characteristic curve of the gas turbine, which is used to calculate the dynamic and thermodynamic operation data of the gas turbine under full operating conditions and extreme operating conditions, and to receive the control signals of the gas turbine control system and convert the operating data. Feedback to the gas turbine control system; the gas turbine mathematical simulation model is also equipped with a gas turbine fault simulation model, which is used to simulate the gas turbine mechanical failure or abnormal working conditions of the components in the gas turbine mathematical simulation model, and calculate the operation of the gas turbine under the fault conditions. data.
燃气轮机控制系统用于控制燃气轮机物理仿真模型和燃气轮机数学仿真模型的运行数据在全工况和极端工况下均在燃气轮机控制系统预设的数值范围内变化。人机接口站用于为控制系统过程监视、控制、诊断、维护及优化管理提供操作和运行界面，以及将燃气轮机物理仿真模型和燃气轮机数学仿真模型的实时数据和异常报警信息显示给用户，并将用户指令传递到燃气轮机控制系统。The operating data used by the gas turbine control system to control the gas turbine physical simulation model and the gas turbine mathematical simulation model vary within the range of values preset by the gas turbine control system under full operating conditions and extreme operating conditions. The man-machine interface station is used to provide the operation and operation interface for the process monitoring, control, diagnosis, maintenance and optimization management of the control system, as well as to display the real-time data and abnormal alarm information of the gas turbine physical simulation model and the gas turbine mathematical simulation model to the user, and to User commands are passed to the gas turbine control system.
实施例二Embodiment 2
如图2所示，本实施例中的燃气轮机控制系统半物理仿真试验系统，包括控制系统和仿真系统，控制系统包括燃气轮机控制系统和人机接口站，仿真系统包括燃气轮机物理仿真模型和燃气轮机数学仿真模型。As shown in FIG. 2 , the semi-physical simulation test system of the gas turbine control system in this embodiment includes a control system and a simulation system, the control system includes a gas turbine control system and a man-machine interface station, and the simulation system includes a gas turbine physical simulation model and a gas turbine mathematical simulation Model.
其中，燃气轮机控制系统和燃气轮机数学仿真模型通过SCnet通讯接口及网络连接，燃气轮机物理仿真模型通过IOnet通讯接口及网络连接燃气轮机控制系统和燃气轮机数学仿真模型。Among them, the gas turbine control system and the gas turbine mathematical simulation model are connected through the SCnet communication interface and network, and the gas turbine physical simulation model is connected with the gas turbine control system and the gas turbine mathematical simulation model through the IOnet communication interface and network.
燃气轮机物理仿真模型包括转速监测试验台、IGV调节测试台、模拟润滑油系统、模拟燃料系统及模拟空气系统(图中仅给出IGV调节测试台)。其中，IGV调节测试台包括伺服装置，由拉杆、拉动环和连杆构成的传动机构，进气可调导叶，线位移传感器和角位移传感器。伺服装置与燃气轮机控制系统通讯连接，在燃气轮机控制系统的控制下通过所述传动机构调节进气可调导叶的旋转角度；线位移传感器和角位移传感器与燃气轮机控制系统和燃气轮机数学仿真模型通讯连接，线位移传感器用于测量伺服装置的运动行程并将数据传递给燃气轮机控制系统和燃气轮机数学仿真模型，角位移传感器用于测量进气可调导叶的实际角度数据并传递给燃气轮机控制系统和燃气轮机数学仿真模型。The physical simulation model of the gas turbine includes a speed monitoring test bench, an IGV adjustment test bench, a simulated lubricating oil system, a simulated fuel system and a simulated air system (only the IGV adjustment test bench is shown in the figure). Among them, the IGV adjustment test bench includes a servo device, a transmission mechanism composed of a pull rod, a pull ring and a connecting rod, an intake adjustable guide vane, a linear displacement sensor and an angular displacement sensor. The servo device is connected in communication with the gas turbine control system, and the rotation angle of the intake adjustable guide vane is adjusted through the transmission mechanism under the control of the gas turbine control system; the linear displacement sensor and the angular displacement sensor are connected in communication with the gas turbine control system and the gas turbine mathematical simulation model , the linear displacement sensor is used to measure the motion stroke of the servo device and transmit the data to the gas turbine control system and the gas turbine mathematical simulation model, and the angular displacement sensor is used to measure the actual angle data of the intake adjustable guide vane and transmit it to the gas turbine control system and gas turbine. Mathematical simulation model.
在燃气轮机启动过程中，需要调节进气可调导叶的角度，改变进气流量，从而扩大压气机的稳定工作范围，避免压气机出现喘振现象。During the start-up process of the gas turbine, it is necessary to adjust the angle of the adjustable guide vane of the intake air to change the intake air flow rate, thereby expanding the stable working range of the compressor and avoiding the surge phenomenon of the compressor.
本实施例中，燃气轮机控制系统在燃气轮机启动过程中，由组态计算得到进气可调导叶角度预期数据，并通过IOnet通讯接口向伺服装置传递调节控制指令；伺服装置根据控制指令调节所连接的拉杆向前移动，拉杆的移动带动安装在支架上拉动环沿圆周进行转动，连杆在转动环转动的过程中随之移动并旋转进气可调导叶的角度，最终达到改变进气流量的模拟效果。In this embodiment, during the startup process of the gas turbine, the gas turbine control system obtains the expected data of the inlet adjustable guide vane angle through configuration calculation, and transmits the adjustment control command to the servo device through the IOnet communication interface; the servo device adjusts the connected connection according to the control command. The pull rod moves forward, the movement of the pull rod drives the pull ring installed on the bracket to rotate along the circumference, and the connecting rod moves along with the rotation of the rotating ring and rotates the angle of the adjustable guide vane of the intake air, and finally changes the intake flow rate. simulation effect.
配置在IGV调节测试台上的线位移传感器测量伺服装置将拉杆向前移动的线位移数据，并通过IOnet通讯接口将所述线位移数据传递给燃气轮机控制系统和燃气轮机数学仿真模型。The linear displacement sensor configured on the IGV adjustment test bench measures the linear displacement data of the servo device moving the tie rod forward, and transmits the linear displacement data to the gas turbine control system and the gas turbine mathematical simulation model through the IOnet communication interface.
燃气轮机控制系统对所述线位移数据进行组态运算得到进气可调导叶角度计算数据，通过对比所述进气可调导叶角度计算数据和所述进气可调导叶角度预期数据的大小，判断是否继续对进气可调导叶进行调节。The gas turbine control system performs configuration operation on the linear displacement data to obtain the calculation data of the angle of the intake adjustable guide vane, and compares the calculated data of the intake adjustable guide vane angle with the expected data of the intake adjustable guide vane angle. Size, determine whether to continue to adjust the intake adjustable guide vanes.
燃气轮机数学仿真模型通过对线位移数据仿真计算得到当前工况下的进气流量运行数据，用于燃气轮机数学仿真模型计算整体的仿真运行数据。The gas turbine mathematical simulation model obtains the running data of the intake air flow under the current working conditions by simulating the linear displacement data, which is used for the gas turbine mathematical simulation model to calculate the overall simulation running data.
燃气轮机数学仿真模型计算整体的仿真运行数据，通过SCnet通讯接口传递到燃气轮机控制系统，用于燃气轮机控制系统的组态运算。The mathematical simulation model of the gas turbine calculates the overall simulation operation data, and transmits it to the gas turbine control system through the SCnet communication interface for the configuration operation of the gas turbine control system.
配置在IGV调节测试台上的角位移传感器测量进气可调导叶的实际角度数据，并通过IOnet通讯接口将所述实际角度数据传递给燃气轮机控制系统；燃气轮机控制通过对比所述实际角度数据和所述进气可调导叶角度计算数据，评估燃气轮机控制系统在IGV调节的功能上是否满足预期的性能指标。The angular displacement sensor configured on the IGV adjustment test bench measures the actual angle data of the intake adjustable guide vanes, and transmits the actual angle data to the gas turbine control system through the IOnet communication interface; the gas turbine control compares the actual angle data and the gas turbine control system. The calculation data of the inlet adjustable guide vane angle is used to evaluate whether the gas turbine control system satisfies the expected performance index in the function of IGV adjustment.
人机接口站同燃气轮机控制系统通讯连接，从燃气轮机控制系统中获得燃气轮机控制系统的组态运算结果和燃气轮机数学仿真模型的运行数据并显示在屏幕上，供用户查看。The man-machine interface station communicates with the gas turbine control system, and obtains the configuration operation results of the gas turbine control system and the operation data of the gas turbine mathematical simulation model from the gas turbine control system and displays them on the screen for users to view.
实施例三Embodiment 3
如图3所示，本实施例中的燃气轮机控制系统半物理仿真试验系统，包括控制系统和仿真系统，控制系统包括燃气轮机控制系统、人机接口站和计时装置，仿真系统包括燃气轮机物理仿真模型和燃气轮机数学仿真模型。As shown in FIG. 3 , the semi-physical simulation test system of the gas turbine control system in this embodiment includes a control system and a simulation system, the control system includes a gas turbine control system, a man-machine interface station and a timing device, and the simulation system includes a gas turbine physical simulation model and Gas turbine mathematical simulation model.
燃气轮机物理仿真模型包括转速监测试验台、IGV调节测试台、模拟润滑油系统、模拟燃料系统及模拟空气系统(图中仅给出转速监测试验台和部分模拟燃料系统)。燃气轮机数学仿真模型用于计算燃气轮机在全工况和极端工况下的动力学与热力学运行数据，以及接收所述燃气轮机控制系统的控制信号并将运行数据反馈给燃气轮机控制系统，还配置有燃气轮机故障仿真模型和计时功能模块。The gas turbine physical simulation model includes a speed monitoring test bench, an IGV adjustment test bench, a simulated lubricating oil system, a simulated fuel system and a simulated air system (only the speed monitoring test bench and part of the simulated fuel system are shown in the figure). The gas turbine mathematical simulation model is used to calculate the dynamic and thermodynamic operation data of the gas turbine under full operating conditions and extreme operating conditions, and to receive the control signals of the gas turbine control system and feed back the operating data to the gas turbine control system. The gas turbine fault is also configured Simulation models and timing function blocks.
转速监测试验台包括用于模拟燃气轮机转子转动的测速圆盘、用于带动测速圆盘高速旋转的可调速电机、用于连接可调速电机与测速圆盘的联轴器和轴承，以及用于测量测速圆盘实际转速的转速探头；其中，可调速电机与燃气轮机数学仿真模型通讯连接，转速探头与燃气轮机控制系统通讯连接；模拟燃料系统配置有用于调节燃料供给系统出口压力的压力控制阀和用于调节燃料供给系统出口流量的流量控制阀。The speed monitoring test bench includes a speed measuring disc for simulating the rotation of the gas turbine rotor, a speed-adjustable motor for driving the speed-measuring disc to rotate at a high speed, a coupling and bearings for connecting the speed-adjustable motor and the speed-measuring disc, and a A speed probe for measuring the actual speed of the speed measuring disc; wherein, the adjustable speed motor is connected in communication with the mathematical simulation model of the gas turbine, and the speed probe is connected in communication with the gas turbine control system; the simulated fuel system is equipped with a pressure control valve for adjusting the outlet pressure of the fuel supply system and a flow control valve for regulating the outlet flow of the fuel supply system.
其中，燃气轮机控制系统和燃气轮机数学仿真模型通过SCnet通讯接口及网络连接，模拟燃料系统和转速监测试验台通过IOnet通讯接口及网络连接燃气轮机控制系统和燃气轮机数学仿真模型。Among them, the gas turbine control system and the gas turbine mathematical simulation model are connected through the SCnet communication interface and network, and the simulated fuel system and the rotational speed monitoring test bench are connected with the gas turbine control system and the gas turbine mathematical simulation model through the IOnet communication interface and network.
本实施例的燃气轮机数学仿真模型中配置有燃气轮机故障仿真模型。在燃气轮机稳定工作时，启动燃气轮机故障仿真模型，向燃气轮机数学仿真模型中传递一个高于燃气轮机额定转速的异常转速数据，所述燃气轮机数学仿真模型进入超速的故障工况；燃气轮机数学仿真模型中配置的计时功能模块在所述燃气轮机数学仿真模型进入故障工况时自动开始计时。A gas turbine fault simulation model is configured in the gas turbine mathematical simulation model of this embodiment. When the gas turbine is working stably, the gas turbine fault simulation model is started, and an abnormal speed data higher than the rated speed of the gas turbine is transmitted to the gas turbine mathematical simulation model, and the gas turbine mathematical simulation model enters the overspeed fault condition; The timing function module automatically starts timing when the gas turbine mathematical simulation model enters a fault condition.
燃气轮机数学仿真模型通过IOnet通讯接口，将转速监测试验台上配置的可调速电机转速调节至同所述异常转速数据相同；所述可调速电机带动联轴器和轴承旋转，继而带动测速圆盘按照所述异常转速数据进行高速旋转，模拟燃气轮机转速高于额定转速的故障工况。The mathematical simulation model of the gas turbine adjusts the speed of the speed-adjustable motor configured on the speed monitoring test bench to be the same as the abnormal speed data through the IOnet communication interface; the speed-adjustable motor drives the coupling and the bearing to rotate, and then drives the speed measuring circle. The disk rotates at a high speed according to the abnormal speed data, simulating a fault condition in which the gas turbine speed is higher than the rated speed.
转速监测试验台上配置的转速探头测量得到所述测速圆盘的转速数据，即异常转速数据，并通过IOnet通讯接口传递到燃气轮机控制系统。The rotational speed probe configured on the rotational speed monitoring test bench obtains rotational speed data of the speed measuring disc, that is, abnormal rotational speed data, and transmits it to the gas turbine control system through the IOnet communication interface.
所述燃气轮机控制系统接收到异常转速数据，通过人机接口站的显示屏向用户显示超速报警信息。The gas turbine control system receives the abnormal speed data, and displays the overspeed alarm information to the user through the display screen of the man-machine interface station.
所述燃气轮机控制系统接收到异常转速数据，经过组态计算，通过IOnet通讯接口向模拟燃料系统中的压力控制阀传递减小燃料供给系统出口压力到预期出口压力值的控制指令；所述压力控制阀接收到燃气轮机控制系统的控制指令后，执行该控制指令，并将新的燃料供给系统出口压力数据通过IOnet通讯接口传递给燃气轮机控制系统、燃气轮机数学仿真模型。The gas turbine control system receives the abnormal rotational speed data, and through configuration calculation, transmits a control command to reduce the outlet pressure of the fuel supply system to the expected outlet pressure value to the pressure control valve in the simulated fuel system through the IOnet communication interface; the pressure control After the valve receives the control command from the gas turbine control system, it executes the control command and transmits the new fuel supply system outlet pressure data to the gas turbine control system and the gas turbine mathematical simulation model through the IOnet communication interface.
所述燃气轮机控制系统配置的计时装置在燃气轮机控制系统向所述压力控制阀传递控制指令后，对压力控制阀的设备动作时间数据开始计时；所述计时装置在所述压力控制阀向燃气轮机控制系统传递的燃料供给系统出口压力数据达到预期出口压力值后计时停止，计算所述压力控制阀的设备动作时间数据。The timing device configured in the gas turbine control system starts timing the equipment operation time data of the pressure control valve after the gas turbine control system transmits a control command to the pressure control valve; After the delivered fuel supply system outlet pressure data reaches the expected outlet pressure value, the timing stops, and the device action time data of the pressure control valve is calculated.
所述燃气轮机控制系统接收到异常转速数据，经过组态计算，通过IOnet通讯接口向模拟燃料系统中的流量控制阀传递降低燃料供给系统出口流量到预期出口流量值的控制指令；所述流量控制阀接收到燃气轮机控制系统的控制指令后，执行该控制指令，并将新的燃料供给系统出口流量数据通过IOnet通讯接口传递给燃气轮机控制系统、燃气轮机数学仿真模型。The gas turbine control system receives the abnormal rotational speed data, and through configuration calculation, transmits a control instruction to reduce the outlet flow of the fuel supply system to the expected outlet flow value to the flow control valve in the simulated fuel system through the IOnet communication interface; the flow control valve After receiving the control command of the gas turbine control system, the control command is executed, and the new fuel supply system outlet flow data is transmitted to the gas turbine control system and the gas turbine mathematical simulation model through the IOnet communication interface.
所述燃气轮机控制系统配置的计时装置在燃气轮机控制系统向所述流量控制阀传递控制指令后，对流量控制阀的设备动作时间数据开始计时；所述计时装置在所述流量控制阀向燃气轮机控制系统传递的燃料供给系统出口流量数据达到预期出口流量值后计时停止，计算所述流量控制阀的设备动作时间数据。The timing device configured in the gas turbine control system starts timing the device action time data of the flow control valve after the gas turbine control system transmits a control command to the flow control valve; the timing device starts timing the flow control valve to the gas turbine control system. After the delivered flow data of the outlet of the fuel supply system reaches the expected outlet flow value, the timer stops, and the device action time data of the flow control valve is calculated.
所述燃气轮机数学仿真模型接收到新的燃料供给系统出口压力值和燃料供给系统出口流量值后，重新进行仿真计算生成燃气轮机运行数据。After receiving the new fuel supply system outlet pressure value and the fuel supply system outlet flow value, the gas turbine mathematical simulation model performs simulation calculation again to generate gas turbine operation data.
由于燃料供给系统出口压力值和出口流量值减小，燃料的供给量降低，燃气轮机的转速数据计算结果逐渐降低；在燃料供给系统出口压力数据和燃料供给系统出口流量数据分别达到预期出口压力值和预期出口流量值后，燃气轮机数学仿真模型中的转速计算数据重新恢复到燃气轮机额定转速；所述燃气轮机数学仿真模型从故障工况恢复到正常工况。Due to the decrease of the outlet pressure value and outlet flow value of the fuel supply system, the fuel supply amount decreases, and the calculation result of the rotational speed data of the gas turbine gradually decreases; when the outlet pressure data of the fuel supply system and the outlet flow data of the fuel supply system reach the expected outlet pressure value and After the expected outlet flow value, the rotational speed calculation data in the mathematical simulation model of the gas turbine is restored to the rated rotational speed of the gas turbine; the mathematical simulation model of the gas turbine is restored from the fault condition to the normal condition.
燃气轮机数学仿真模型中的计时功能模块停止计时，并计算从所述计时功能模块开始计时到停止计时的响应时长；所述响应时长为燃气轮机控制系统在燃气轮机超速时从故障工况恢复到正常工况所需的响应时间，用于评估燃气轮机控制系统在故障工况下的工作可靠性。The timing function module in the gas turbine mathematical simulation model stops timing, and calculates the response time from when the timing function module starts timing to when it stops timing; the response time is when the gas turbine control system recovers from the faulty condition to the normal condition when the gas turbine is overspeeding The required response time to evaluate the operational reliability of the gas turbine control system under fault conditions.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明保护的范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.
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