阅读说明：本技术 一种水轮发电机组调速器水头自适应功能控制系统 (A kind of turbine-generator units governor head adaptation function control system ) 是由 贺臻 乔进国 齐巨涛 李锐奎 王远洪 胡金飞 胡丰 张晓东 刘建维 辉金荣 曹一 于 2019-09-04 设计创作，主要内容包括：本发明属于水电站水轮发电机组技术领域,尤其为一种水轮发电机组调速器水头自适应功能控制系统,包括计算机监控系统、水位测量屏、调速器系统、A水位检测组和B水位检测组,所述A水位检测组内置四个水位计；本发明实现高水头、大容量机组、大库容、大水位变幅电厂调速器水头由人工设置转变为自动下发、自适应,设计完善水头采集、水头控制、容错三个判断逻辑,保证系统调节精度和可靠性；实现调速器水头自动检测、自动纠错、自动切换功能,减轻运维人员工作量,防止人为修改水头不及时、不准确的情况发生,本发明避免电站水头与调速器水头偏差大造成调节异常或者开机并网失败的安全风险。(The invention belongs to power station hydrogenerator technical group fields, in particular a kind of turbine-generator units governor head adaptation function control system, including computer supervisory control system, level measuring screen, speed regulator system, A water level detecting group and B water level detecting group, four water-level gauges built in the A water level detecting group；The present invention realizes that high water head, large sized unit, big storage capacity, high water-level amplitude power plant governor head are issued, adaptively automatically by being manually arranged to be changed into, head acquisition, head control, fault-tolerant three decision logics are improved in design, guarantee system degree of regulation and reliability；Realize governor head detect automatically, automatic error-correcting, automatic switching function; mitigate operation maintenance personnel workload; prevent from artificially modifying head not in time, the situation of inaccuracy occur, the present invention, which avoids power head, causes greatly the security risk of dysregulation or the grid-connected failure of being switched on governor head deviation.)

1. a kind of turbine-generator units governor head adaptation function control system, including computer supervisory control system (1), water level Measurement screen (2), speed regulator system (3), A water level detecting group (4) and B water level detecting group (5), it is characterised in that: the A water level inspection Four water-level gauges built in survey group (4), four water-level gauges built in the corresponding B water level detecting group (5), and the A water level detecting Group (4) and the signal transmission end of the B water level detecting group (5) are connected with level measuring screen (2)；

The level measuring screen (2) and the speed regulator system (3) pass through A0 hardware with the computer supervisory control system (1) respectively Line communication connection, and dam area LCU, host computer and each LCU for generator set built in the computer supervisory control system (1).

2. a kind of turbine-generator units governor head adaptation function control system according to claim 1, feature Be: four water levels built in the A water level detecting group (4) are calculated as two throw-in type water-level gauges, a laser water-level gauge and one A ultrasonic water level gauge, before laser type water-level gauge cooperation throw-in type water-level gauge is mounted on trash rack；Ultrasonic water level gauge cooperation is thrown Enter formula water-level gauge and is mounted on No. 1 tailrace tunnel.

3. a kind of turbine-generator units governor head adaptation function control system according to claim 1, feature Be: four water levels built in the B water level detecting group (5) are calculated as two throw-in type water-level gauges, a laser water-level gauge and one A ultrasonic water level gauge, before laser type water-level gauge cooperation throw-in type water-level gauge is mounted on trash rack；Ultrasonic water level gauge cooperation is thrown Enter formula water-level gauge and is mounted on No. 2 tailrace tunnels.

4. a kind of turbine-generator units governor head adaptation function control system according to claim 1, feature It is: by PLC connection between dam area LCU, host computer and each LCU for generator set.

5. a kind of turbine-generator units governor head adaptation function control system according to claim 1, feature Be: host computer is built-in for inputting the manual controller of numerical value.

6. a kind of turbine-generator units governor head adaptation function control system according to claim 1, feature Be: the speed regulator system (3) is built-in for installing the modulator electric cabinet of modulator.

Technical field

The invention belongs to power station hydrogenerator technical group fields, and in particular to a kind of turbine-generator units governor water Head adaptation function control system.

Background technique

Currently, governor head mode is largely artificial head mode, need operations staff according to change of water level situation, In Governor electric cabinet touch screen parameter setting window is manually entered and needs the governor modified, in head signal be hydroelectric power plant Key parameter, governor governor for calculating governor no-load opening, different governors be related to different control parameters and Control strategy, and governor head now manually sets the workload that value mode not only increases operations staff, is unfavorable for Automatic operating does not meet power station " unattended " service requirement, and there are risks: if head set value modification not in time or Accidentally modification parameter etc. will lead to the grid-connected failure of booting or the security risks such as unit is out of control, influence power network safety operation, simultaneously Timeliness, the accuracy of head modification more highlight Load Regulation quality and promotion generation schedule qualification rate effect.

Summary of the invention

To solve the problems mentioned above in the background art.The present invention provides a kind of turbine-generator units governor heads Adaptation function control system has the characteristics that automatic detection, automatic error-correcting, automatic switchover.

To achieve the above object, the invention provides the following technical scheme: a kind of turbine-generator units governor head is adaptive Answer function control system, including computer supervisory control system, level measuring screen, speed regulator system, A water level detecting group and the inspection of B water level Survey group, four water-level gauges built in the A water level detecting group, four water-level gauges built in the corresponding B water level detecting group, and it is described The signal transmission end of A water level detecting group and the B water level detecting group is connected with level measuring screen；

The level measuring screen and the speed regulator system are logical by AO hardware lines with the computer supervisory control system respectively News connection, and dam area LCU, host computer and each LCU for generator set built in the computer supervisory control system.

Preferably, four water levels built in the A water level detecting group are calculated as two throw-in type water-level gauges, a laser water level Meter and a ultrasonic water level gauge, before laser type water-level gauge cooperation throw-in type water-level gauge is mounted on trash rack；Ultrasonic water level gauge Cooperate the throw-in type water-level gauge number of being mounted on tailrace tunnel.

Preferably, four water levels built in the B water level detecting group are calculated as two throw-in type water-level gauges, a laser water level Meter and a ultrasonic water level gauge, before laser type water-level gauge cooperation throw-in type water-level gauge is mounted on trash rack；Ultrasonic water level gauge Cooperate the throw-in type water-level gauge number of being mounted on tailrace tunnel.

Preferably, pass through PLC connection between dam area LCU, host computer and each LCU for generator set.

Preferably, host computer is built-in for inputting the manual controller of numerical value.

Preferably, the speed regulator system is built-in for installing the modulator electric cabinet of modulator.

Compared with prior art, the beneficial effects of the present invention are:

1, the present invention realizes high water head, large sized unit, big storage capacity, high water-level amplitude power plant governor head by manually setting It sets to be changed into and issues automatically, adaptively (changed according to water levels of upstream and downstream and automatically adjusted)；

2, the present invention design improves head acquisition, head control, fault-tolerant three decision logics, guarantee system degree of regulation and Reliability；Realize governor head detect automatically, automatic error-correcting, automatic switching function, mitigation operation maintenance personnel workload, prevent people Situation generation for modification head not in time, inaccurate；

3, the present invention avoids power head and governor head deviation from causing dysregulation greatly or the grid-connected failure that is switched on Security risk can be applicable after implementation success in other same type hydroelectric power plants.

Detailed description of the invention

Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:

Fig. 1 is head adaptation function logic chart of the invention；

Fig. 2 is the head acquisition logic figure in the present invention；

1, computer supervisory control system；2, level measuring screen；3, speed regulator system；4, A water level detecting group；5, B water level detecting Group.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.