JPH03270651A - Operation control system for fuel cell power plant - Google Patents

Abstract

PURPOSE:To efficiently control a plurality of FC plants interlocked to a system by a method wherein the operation and the control of the FC(fuel cell power generation) plants are allotted to respective FC plant levels and an operation control center level properly. CONSTITUTION:Information processing unit 7-i, installed in respective plants, produces information (ci) necessary for a center on the basis of the amounts (ai) of respective plants and past data for operation control, which are stored in a data base 7-i-c. On the other hand, the center produces information (ei) necessary in center level on the basis of the given information (ci) and data stored in a data base 8-c while one part of the information is displayed on a CRT console 8-d. Further, an operational command information generator 8-b produces an operational command signal (di) for respective FC plants while an operation signal generator 7-i-b receives it and produces a command signal (bi) for respective parts in the plant or the controllers of lower order.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Field of Industrial Application)] The present invention relates to a fuel cell power generation plant that is operated in connection with a grid (
The present invention relates to an FC plant (hereinafter referred to as an FC plant), and particularly to an operation management system for an FC plant that efficiently manages the operation of a plurality of FC plants.

(Prior Art) FC plants are known as plants that directly convert chemical energy contained in fuel into electrical energy. This FC plant outputs electrical energy by electrochemically reacting fuel gas and oxidant gas supplied to a fuel electrode. This type of plant is expected to be put into practical use as a highly efficient, pollution-free, and low-noise power generation plant. Furthermore, this plant has no efficiency loss due to scale, is highly efficient even on a small scale, and is excellent in load following, so its application as a distributed power source is particularly promising in the future.

FIG. 3 shows an example of a conventional configuration of an operation management system for a plurality of FC plants.

In the figure, 1 is a system where multiple FC plants are interconnected, 21 to 2-nJ are FC plants, 3-1 to 3-n are operation panels for each FC plant, and 4-1 to 4-n are operating He is an operator. Further, a1 to an are plant state quantities necessary for operation, and b1 to bn are plant operation signals necessary for operation.

In the example shown in FIG. 3, each of the FC plants 2-1 to 2-n is operated by an operator 4-1 to 4-n on the operation panel 3-n.
It is configured to be operated through 1 to 3-n.

However, with this type of configuration, an operator is required for each FC plant, which is a small-scale power generation facility that is distributed, so there is a drawback that an excessive number of personnel are required to operate the power generation facility. .

Further, FIG. 4 shows a second configuration example assumed for the operation management system of an FC plant. In this example,
1, 2-1~2-n, al~an, b1~b
n is the same as in Fig. 3, 5 is the central operation panel in the operation control center, and 6 is the operator of the operation control center. The configuration is such that the operation 146 is operated all at once by the central operation panel 5 installed there.

However, in the FC plant operation management system having such a configuration, a problem arises in that the management of each plant state and command operations to the plants are excessively concentrated on the operator 6. In addition, in such a centralized operation management system, each FC
There were drawbacks such as the inability to visit the plant to sufficiently investigate and manage the operating status of the plant.

(Problems to be Solved by the Invention) When operating and managing multiple FC plants connected to the grid as described above, there is an increase in the number of required operators when operating and managing at each plant level, and there is a need for centralized management at the center level. There were problems such as excessive concentration of management and operations.

The present invention was made to solve the above-mentioned problems, and by appropriately dividing the operation and management of FC plants between each FC plant level and the operation management center level, multiple FC plants connected to the grid can be 6 [Structure of the Invention] (Means for Solving the Problems) In order to overcome the above object, the fuel cell system of the present invention efficiently manages the FC plants of the present invention. The power generation plant operation management system has a center equipped with a means to issue operation commands such as operation mode and power generation output commands to each FC plant based on information sent from each FC plant.On the other hand, each FC plant , generates various information necessary for the above center based on the operating status of the plant,
It is characterized in that it is configured by providing a means for transmitting the information.

(Function) In the operation management system for the fuel cell power generation plant described above, each FC7 land manages the plant status at a lower level and generates information necessary for the center side, so the center side processes the information. The amount of information that must be sent from each plant side will be significantly reduced. In addition, in such a configuration, the detailed situation investigation of each FC plant can be carried out by the information processing equipment installed in each FC plant as necessary, and the overall management of multiple FC7 lands can be carried out by the processing equipment at the center. It's becoming possible.

<Example> An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an example of the overall configuration of an operation management system for a fuel cell power generation plant according to the present invention, and elements corresponding to those in FIGS. 3 and 4 are designated by the same reference numerals. In FIG. 1, 7-1 to 7-n are information processing devices installed in each FC7 runt, and 8 is an information processing device and operation panel installed in the center for operation management. The figure uses the first FC plant 2-i as an example.
An example of the internal configuration of the information processing device 7-i and the information processing device 8 of the center is shown. In the information processing device 7-i in FIG. 2, 7-i-a is information C to the center.
8 generator, 7-i-b is an operation signal generator for the plant, 7-i-c is a database storing past data necessary for information processing of the iFC plant, 7-i-
d is a CRT console for FC7 runt. Also, in 8 of this figure, 8-a is information C from each FC plant.
8-b is an operation command information generator for each FC plant; 28-C is a database necessary for comprehensive operation management of each FC plant; 8-d is a CRT for operator 6; It's a console.

In this embodiment, the information processing device 7-1 installed in each plant
is the operating state quantity a of each plant and the database 7-
The information C required for the center is generated from past operation management data stored in the i-c.

On the other hand, at the center, based on the given information C and the data stored in the database 8-C, the center generates the necessary information e and sends some of it to the CRT console 8-C.
In addition, in 8-b, the above information e and CFI are displayed.
Based on the command information f input by the operator 6 as necessary based on the T consource 8-d, an operation command signal d is generated to each FC plant, and the 7-+-b receives it and further sends a command signal to each part of the plant or lower order. This configuration generates a command signal b to the controller. It should be noted that the CRT console 7-i-d is used when unique status investigation or operation is required at the level of an individual FC plant. Here, the information C1 includes, for example, efficiency information such as representative state quantities 9 of the plant such as power generation efficiency and thermal efficiency of each part, maintenance information such as replacement timing and inspection timing of the Il device, and plant diagnostic information. The information d corresponds to, for example, an operation mode command such as start/stop, or a power generation output command.

In the FC plant operation management system with such a configuration, information that can be processed at the plant level is processed by the processing devices 7-1 to 7-n, and the information C1 sent from each FC plant to the center and the information C1 sent from the center to each FC are processed by the processing devices 7-1 to 7-n. The command information d1 to the plant can be significantly reduced compared to the conventional example (for example, the conventional example shown in FIG. 4).

Through this configuration, the center and each FC
At the same time, the amount of information required by the CCC Ref is reduced, and at the same time, the information processing load on the center side and the operator's load are reduced, allowing a large number of FC plants to be successfully operated and managed by a small number of people. I can do it. In addition, it is possible to perform centralized management at the center, and at the same time, by using the CRT console 7-i-d of the FC plant example, work such as status investigation and operation management at the FC plant level can be performed. Flexible operational management can be achieved because the system can also perform various operations.

[Effects of the Invention] As explained above, according to the present invention, each FC plant generates information necessary for the center from its own level state,
The structure is configured so that upper-level command signals are transmitted from the center to each FC plant, so hierarchical processing of information processing at each FC7'' land and information processing at the center level is performed, and multiple FC plants It becomes possible to operate and manage the plant efficiently and flexibly.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of the overall configuration of an operation management system for a fuel cell power generation plant according to the present invention, and FIG.
FIGS. 3 and 4 are block diagrams showing first and second examples of conventional configurations of conventional fuel cell power generation plant operation management systems. 1...Systems 2-1 to 2-n to which FC plants are interconnected
...FC plant 3-1 to 3-n...Operation panel 4-1 to 4-n...FC plant operator 5...Center central operation panel 6...Center operator 7- 1 to 7-n... Information processing device 8... Information processing device and operation panel

Claims (1)

[Claims] In an operation management system that has multiple fuel cell power generation plants connected to the grid and a center that operates and manages these fuel cell power generation plants, each fuel cell power generation plant is operated based on information sent from each fuel cell power generation plant. A means for generating operation commands such as mode and power generation output;
An operation management system for a fuel cell power generation plant, comprising means for generating various information required by the center based on the operating state of each fuel cell power generation plant, and means for transmitting the information.