3.1.6 TEM-EVO system Gas engine control system

Supply in bulk. MWM GmbH total electronic management- TEM carries out monitor and control to all functions of gas engine as well as auxiliary power of one unit. The monitoring function can protect the normal operation of unit and guarantee the longtime operation. TEM-EVO system controls and optimizes the combustion of air inside each cylinder. Integrated controlled feedback function  can guarantee the optimum value and duplicate value under all states. TEM-EVO system is also suitable to special application via multinomial extension functions. In addition to TEM-EVO system, only contactor, on-line unit, generator protection/ parallel in protection and power measurement are required to be mounted on the switch cabinet of auxiliary power.

TEM - EVO system includes the following 3 parts:

Cable of the generator set is connected as a whole including unit control and safety chain for TüV inspection (Max. length of cable to gas engine is 15m).

It is mounted on switch cabinet of the auxiliary power ("HAS"), Max. distance to electro unit control cabinet is 250 m; 3-core shield communication cable is used.

Max. distance to electro unit control cabinet "AGS" is 100 m; 3-core shield cable is used.

The system adopts flexible design to satisfy the field conditions to lower various interferences and cable demand. The electro unit control cabinet is mounted near the engine. The engine cable has passed the test before the ex-works to guarantee the commissioning and stable operation in the future. Power related signal is sent to TEM-EVO system via input/output control of auxiliary power switch cabinet; data transmitted to the unit control is realized via high efficiency data bus. The operation terminal can be arranged at any place of the power plant according to the client's demand, e.g. near the unit or the switch cabinet room.

Auto pneumatic and stopping of generator set

Reliable exhaust gas monitor to guarantee the low emission

Integrated digital rotation speed and power control

Safety chain having passed TüV inspection

Link between actuating apparatus or sensor and power aid cabinet I/O module; the data is transmitted to TEM-EVO control system unit via bus

Monitor to all sensors of unit

Monitor to engine water

Monitor to lubricating oil return including pre-lubrication, lubrication and oil replacement

The test mode, used to detect the connection status of actuating apparatus, sensor and auxiliary power

Measured value recorded by electron line recording instrument synchronous with operation, used to check and diagnose the operating mode within 40 hours/6 minutes

Electron operation log, recording detailed information such as all warnings, errors and operation, etc., including date and.

Electron operating time log, including the time distribution records under five different loads

Optional extend item of operation terminal

[MK] Control to engine water: the cooling water circulation control keeps proper temperature of the cooling water via the regulation of a three-way valve. Inlet temperature of the cooling water will increase under non-full load operation

[SER]The parallel connection is used for data exchange: it connects with the superior control via the parallel to carry out the data exchange such as target value, measured value, information, warning and error. The link adopts 3964R protocol and RK512 via TTY or CS20 mA. Max. distance between TEM EVO control system and superior control is 100 m

[GK] Intercooled cycle: it controls the temperature of intercooled cycle water by the regulation of a three-way valve and simultaneously monitors the temperature of mixer gas.

[IOC] I/o module: it controls the auxiliary power unit such as pump and valve, etc. and records the measuring value separately. This module is separated with the auxiliary power switch cabinet and supplied in bulk.

[16M] 16 parametrization information: diversification of digitizing input and parameter configuration ensure that error, warning or other information special for each generator set are transmitted to TEMEVO system. Thereby it is more simple in unit monitor and more clear in recording the operation log. The parametrization information is introduced to i/o module of auxiliary power switch cabinet as a potential-free contactor.

[AKRK] Antiknock control: high dynamics antiknock control of each cylinder effectively ensure the stable operation of the engine under low Methane number as well as ensure the power output of low emission and high efficiency

[NATL2] Monitoring the exhaust gas temperature behind exhaust gas supercharger A and B flexibly: display (display screen, history, parallel connection) and monitor the exhaust gas temperature behind exhaust gas supercharger A and B. Sending the error warning in case of the set value having been exceeded

[SATL2] Speed measurement and speed restriction of supercharger: display (display screen, history, parallel connection) and monitor the measurement and limitation of turbo charger speed.

[GL] Temperature monitor to generator bearing: display (display screen, history, parallel connection) and monitor the bearing temperature on both ends of generator. Reporting error or warning indication in case of the set value having been exceeded

[GLT] Temperature of the engine main shaft bearing will be monitored by TEM EVO system to protect the engine. Error or warning indication will be given in case of the set value having been exceeded; according to the magnitude of exceeded value, error prompt will be appeared first and then the warning

[AVW] TEMEVO controls the preheating of inlet temperature via the regulating valve. The inlet temperature is adjusted to the set value. The adjuster controls the regulating valve of heat exchanger

[VAWT/VSWT] Measurement to temperature of heating water before the exhaust gas cooler and the lubricating oil cooler

[SPC] Connection to maintenance computer: maintenance used socket is remained on TEMEVO control cabinet. After the maintenance computer is connected, the control system will cut off all other links with the terminal or the modem, then TEM EVO will carry out the operation via the maintenance computer

[BSX], [BSXK] Is preinstalled for parts of eService system [BSX] with cable [BSXK] included: used for the preinstallation of remote operation TEM-EVO system. The installation condition is that, for each TEM EVO system, one mechanical change-over switch or intelligent selected cell (IAE) is connected with eService modem system.

[2xNKAT] TEMEVO measures the temperature of exhaust gas behind the catalyst to protect the exhaust gas catalyst and gives out the error warning according to different operating condition

 

Huayiwang Chinese Translation Company has translated many professional documents about TEM-EVO system.

 

3.1.6 TEM-EVO system 燃气发动机控制系统

散件供应。MWM GmbH 全电子控制系统(Total Electronic Management -TEM)

对燃气发动机全部功能以及一个单元的辅助动力进行监视和控制。通过监控功能可以保护机组正常运行和

保证长期运行。TEM-EVO 系统控制并优化各气缸内气体的燃烧。集成的控制反馈

功能可以保证发动机在所有状态下的最优值和重复值。通过多项扩展功能使TEM-EVO 系统

同样可以适用于特殊应用的需求。除TEM-EVO 系统之外，仅有接触器，并机单元，

发电机保护/并网保护和功率测量需要安装在辅助动力开关柜。

TEM-EVO 系统包含以下3 部分：

完整的连接发电机组电缆，包括单元控制和TüV 检验通过的安全链 (到燃气发动机电缆线最长15 m)。

安装在辅助动力开关柜 ("HAS")， 到电力单元控制柜"AGS"最大距离250 m，使用为3 芯屏蔽通讯电缆。

到电力单元控制柜"AGS"最大距离100 m，使用3 芯屏蔽电缆。

系统为柔性设计满足现场条件，使各种干扰和电缆需求量降低。电力单元控制柜安装在发动机附近。发动机电缆在出厂前已通过测试，以保证今后调试和稳定运行。与电源有关信号将经辅助动力开关柜输入输出控制传递到TEM-EVO 系统，传递到机组控制的数据通过高效的数据总线实现。操作终端可以根据客户需求安置在电厂任何地方，例如机组附近或开关柜室。

发电机组自动气动和停止

可靠的尾气监控保证低排放

集成的数字化转速和功率控制

TüV 检验通过的安全链

执行器及传感器与辅助动力控制柜I/O 模块的链接，数据通过总线传递到TEM-EVO 控制系统单元

机组所有传感器的监控

发动机冷却水监控

润滑油回路监控，包括预润滑，润滑及油更换

测试模式用来检测执行器，传感器和辅助动力单元的连接状况

与运行同期的电子线记录仪记录的测量值，用于检查和诊断40 小时/6 分钟之内的工况

电子操作日志记录所有警告，出错和操作等详细信息，包括日期及。

电子运行时间记录，包括5 个不同载荷下的时间分布记录

操作终端可选扩展项

[MK] 发动机冷却水控制： 冷却水循环控制通过一个三通阀调节保证冷却水保持一个适当的温度。在非全载荷运行下冷却水进口水温将提高

[SER]并口连接用于数据交换：与上级控制通过并口连接进行数据交换，例如目标值，测量值，信息，警告和出错，链接采用3964R 协议和经TTY 或CS20 mA 的RK512。TEM EVO 控制系统和上级控制最长距离100 m

[GK]中间冷却循环：通过对一个三通阀的调节来控制中间冷却循环水温，同时监视混合器气体温度

[IOC]输入输出模块：输入输出模块控制辅助动力单元，如泵和阀门等。并且分别记录测量值。该模块与辅助动力开关柜分开做为散件供应

[16M] 16 个参数化信息： 数字化输入及参数配置的多样化保证每个发电机组特殊的出错，警告或其它信息等传递到TEMEVO 系统。从而使机组监视更加简单，操作日志记录更加明朗。参数化信息

做为零电势接触器引入到辅助动力开关柜中的输入输出模块上

[AKRK]防爆震控制：每个气缸高动态防爆震控制，有效保障发动机在低甲烷值情况下的稳定运行，并保证低排放和高效率的功率输出

[NATL2]灵活监视尾气增压器A 和B 之后尾气温度：显示(显示屏，历史，并行连接)和尾气增压器A 和B 后尾气温度。如果超过设定值将发出出错警告

[SATL2]增压器转速测量及转速限制：显示(显示屏，历史，并行连接)和尾气涡轮增压器转速的测量与限制

[GL]发电机轴承温度监控：显示(显示屏，历史，并行连接)及监视发电机两端轴承温度。如果超过设定值将报出错或警告显示

[GLT] 为了保护发动机，发动机主轴轴承温度将被TEM EVO 系统监控，超过设定值情况下将发出出错或警告显示，根据超出值大小，首先出现出错提示，然后是警告

[AVW]TEMEVO 通过调节阀来控制进气温度的预热。进气温度被调节到设定值。调节器控制热交换器的调节阀

[VAWT/VSWT] 对尾气冷却器及润滑油冷却器前加热水水温的测量

[SPC]与维护电脑的连接：TEMEVO 控制柜上留维护用插口。在连接维护电脑后，控制系统将切断所有其它的和终端或调制解调器的链接，然后TEM EVO 将可通过维护电脑操作

[BSX], [BSXK] 预先安装用于 eService 系统 [BSX] 部件，含电缆 [BSXK]：用于远程操作TEM—EVO 系统的预安装。安装条件是对于每个TEM EVO 系统在eService 调制解调器系统上连接一个机械转换开关或智能选择单元 (IAE)

[2xNKAT]为了保护尾气催化器，TEMEVO 测量催化器之后的尾气温度，根据运行情况不同将发出出错警告

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