JPH1030546A - Automated system for regulating pondage type hydraulic power plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automated system which can prevent water from overflowing at a regulating pondage type hydraulic power plant for daily adjustment (short time) and can conduct highly efficient operation and control. SOLUTION: This automated system for a regulating pondage type hydraulic power plant makes a power generating plan schedule based on an estimated flow and compares it with a generating operating schedule which is already registered and operated by conducting inflow amount estimated processing for flowing in a periodical cycle, putting inflow amount estimation into practice, and starting power generating plan processing. When a difference is more than its allowable deviation, the power generating plan schedule is registered as a power generating operating schedule, and operation control command processing for a generator is conducted according to the registered operating schedule. It is thus possible to conduct rapid and highly efficient water system operation for a severely changeable natural flow automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regulating pond type hydroelectric power plant automation system for controlling a regulating pond type hydroelectric power plant by constituting a computer system.

2. Description of the Related Art In the conventional power generation operation of a regulating pond type hydroelectric power plant, an inflow is predicted, a power generation is planned based on the prediction, and then power generation is controlled. However, in such a conventional technique, inflow estimation, which is an important factor for making a power generation plan, is performed prior to the power generation plan. This power generation plan is a few days before the use of power generation, for example,
Stand up the day before. Therefore, on the day when power generation is controlled, there is a large difference between the estimated inflow amount and the actual inflow amount. The cause of the large difference between the estimated inflow and the actual inflow is largely due to the difference in rainfall. If there was a large difference between the estimated inflow and the actual inflow, the power generation plan had to be re-established. For example, when there is a large difference between the estimated inflow and the actual inflow, the operator always grasped the situation of the inflow and, based on the judgment of the operator, rebuilt the power generation plan and operated it. .

According to the above-mentioned prior art, if a large difference occurs between the estimated inflow amount and the actual inflow amount, the power generation plan must be reestablished. Therefore, if there is a large difference between the estimated inflow volume and the actual inflow volume, the operator must always grasp the status of the inflow volume and, based on the operator's judgment, rebuild the power generation plan and perform the operation. did not become. SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic pond-type hydroelectric power generation system that prevents flooding of a pond-type hydroelectric power plant that performs day (short-term) adjustment, and that operates and controls the pond with high efficiency.

SUMMARY OF THE INVENTION An automatic pond type hydroelectric power plant control system for controlling a pond type hydroelectric power plant according to the present invention executes a process of estimating an inflow amount flowing at a fixed period to execute an inflow amount estimation. Starting the power generation planning process after executing the inflow estimation, and setting a power generation schedule based on the flow estimation, comparing the power generation operation schedule that has already been registered and operated, and the difference of the allowable deviation or more is found. In some cases, the method includes a step of registering a power generation plan schedule as a power generation operation schedule, and a step of executing a generator operation control command process according to the registered operation schedule. Power plant automation system.

Operation The inflow forecasting process is performed at regular intervals, a high-efficiency power generation plan is always established in consideration of various restrictions, and the power generation planning process is started after the execution of the inflow forecast. A power generation plan schedule is set based on the flow rate forecast, and the power generation operation schedules that have already been registered and operated are compared. If there is a difference that is equal to or greater than the allowable deviation, the power generation plan schedule is registered as the power generation operation schedule. By executing the operation control command processing of the generator in accordance with the registered operation schedule, the regulating pond type hydroelectric power plant is automated and operated.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram of an automation system for a regulating pond type hydroelectric power plant according to the present invention. A water level of a dam provided in the regulating pond is detected by a telemeter, and the data of the detected telemeter value (10) is used as a computer system for water system control (11).
To enter. In the water system control computer system (11), it is managed by software (12). This software (12) includes an inflow estimation (13), a power generation plan (14), and a generator control (15). The operation control command of the generator is issued by using the data obtained by the water system control computer system (11). FIG. 2 is a flowchart showing a process of the automated system of the regulating pond type hydroelectric power plant according to the present invention. The automated system of the regulating pond type hydroelectric power plant uses a telemeter or the like to obtain data such as dam water level and precipitation at a fixed period (ST1), and executes a process of estimating an inflow amount flowing at a fixed period to execute an inflow amount. An inflow estimation process (ST2) for executing a forecast, a power generation planning process (ST4) for starting a power generation planning process together with an inflow estimate (ST3) after the inflow estimation, and an inflow estimation. A generator control processing step of setting a power generation plan schedule, comparing the power generation operation schedule (ST5) that has already been registered and operated, and if there is a difference that is equal to or greater than the allowable deviation, registering the power generation plan schedule as the power generation operation schedule. (ST
6) and an operation control command processing step (ST7) for executing the operation control command processing of the generator according to the registered operation schedule. The operation of the automated system of the regulating pond type hydroelectric power plant is performed by using a telemeter or the like to obtain data such as dam water level and precipitation at a fixed period (ST1), and to execute a process of estimating an inflow amount flowing at a fixed period. A quantity prediction is executed (ST2). After the execution of the inflow estimation, the power generation planning process is started together with the inflow estimation (ST3) (ST4). Next, a power generation schedule is set based on the inflow estimation, and the power generation operation schedule (ST5) that has already been registered and operated is compared. Is registered (ST6). The operation control command processing of the generator is executed according to the registered operation schedule (ST7).

As described above, according to the present invention, it is possible to configure an automatic pond type hydroelectric power plant automatic system which can automatically and quickly perform a high-efficiency water system operation with respect to a natural flow which fluctuates greatly.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram illustrating the operation of the embodiment of the present invention.

[Explanation of symbols]

 10: Telemeter value such as dam water level, 11: Computer system for water system control, 12: Software, 13: Inflow estimation, 14: Power generation calculation, 15: Generator control, 16 ... Operation control command of the generator.

Claims (2)

[Claims] 1. A step of executing an inflow estimation process by executing an inflow estimation process that flows at a fixed period, a step of starting a power generation planning process after the execution of the inflow estimation, and setting a power generation schedule by the flow estimation. The power generation operation schedules that have already been registered and operated are compared, and if there is a difference exceeding the allowable deviation, the step of registering the power generation plan schedule as the power generation operation schedule and the step of registering the generator according to the registered operation schedule Executing an operation control command process. 2. The automated system for a regulating pond type hydroelectric power plant according to claim 1, further comprising: 2. The system according to claim 1, wherein the inflow estimation process, the power generation planning process, and the operation control command process are linked.