JP2823371B2 - Power optimization management device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

 [Object of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power optimizing management apparatus for a power facility such as a private power generating facility.

[0002]

2. Description of the Related Art Conventionally, regarding optimal load distribution management of electric power and steam in a private power generation facility, electric power based on a linear programming method utilizing a steam consumption characteristic of a turbine, which is a linear characteristic, has been mainly used.
Either a method of obtaining the optimum load distribution of the steam amount or a method of obtaining an optimal solution by a non-linear programming method aiming at economical utilization mainly utilizing the valve point characteristics of the turbine, which is a non-linear characteristic. According to the linear programming, the power and the steam load are secured with good convergence in calculating the optimum solution, but the improvement of the power generation efficiency is ignored because the valve point characteristics are not used. In addition, the nonlinear programming method can improve power generation efficiency and improve the efficiency of power generation equipment operation.However, the method has poor optimal solution convergence, requires man-hours in software design and production, and requires valve point characteristics. Software maintenance that responds to changes is also structurally complex due to the use of non-linear programming, and as in the case of large-scale in-house power generation equipment with more than ten turbines,
It is meaningful to improve plant economic operation by nonlinear programming in a facility that pursues power generation efficiency even if it gets tired, but in the case of a small-scale private power generation facility with several turbines, the facility operation pattern is limited. However, the degree of effective use of nonlinear programming was low and there was a management problem.

[0003]

As described above, conventionally, in order to obtain an optimal solution of the power and steam load distribution in the private power generation facility, the degree of effective use of the nonlinear programming method is low and the steam consumption of the turbine is low. In the method using the linear programming based on the quantity characteristic, power generation efficiency was not pursued, and there was a problem in power generation equipment management.

[0004] It is an object of the present invention to provide a power optimization system capable of improving the degree of effective use of functions and improving the power generation operation efficiency by simplifying a technique for obtaining an optimal solution of power and steam load distribution. Another object of the present invention is to provide an activation management device.

[Configuration of the Invention]

[0006]

SUMMARY OF THE INVENTION The present invention provides a process data input / output management means for managing the input / output of power data and steam flow rate data, and a private power generation system based on the process data managed by the process data input / output management means. Power optimizing function executing means for optimally distributing generated power and generated steam of equipment, steam consumption characteristic managing means for managing steam consumption characteristics of a corresponding turbine, and valve point for managing valve point characteristics of a turbine The power optimization management device includes a characteristic management unit.

[0007]

In the power optimization management device of the present invention, the steam consumption characteristics and the valve point characteristics are managed, the power and the steam load are secured, the power generation efficiency is improved, and the power generation equipment is operated effectively. .

[0008]

Next, an embodiment of the present invention will be described. FIG. 1 shows a process data input / output management means 1 for managing input / output of electric power data and steam flow rate data, and the generated power and generated steam of a private power generation facility based on the process data managed by the process data input / output management means. Power optimizing function executing means 2 for optimal load distribution, and steam consumption characteristic managing means 3 for managing steam consumption characteristics of a corresponding turbine.
And a power optimization management device comprising a valve point characteristic management means 4 for managing valve point characteristics of the turbine. That is, in a device for managing the distribution of electric power and steam load of electric power having a private power generation facility and steam equipment, a process data input / output management means 1 for performing input / output management of process data such as electric power and steam flow rate, and a process data input / output management means. Based on the data managed by the output management means 1,
A power optimizing function executing means 2 for executing an optimal load distribution function such as power and steam flow rate of the power generation equipment, and a steam, which is a characteristic of a corresponding turbine, for the power optimizing function executing means 2 to solve an optimization problem. Steam consumption characteristic management means 3 for managing the consumption characteristic, and valve point characteristic management means 4 for managing the valve point characteristic which is also the characteristic of the turbine.
And a data display means 5 for displaying data of the power optimization function execution means 2, and data obtained by the process data input / output management means 1 and data processed by the power optimization function execution means 2 are stored. A power optimization management device comprising a data storage means 6 is shown.

Next, FIG. 2 shows a power generation equipment system diagram.

The first boiler 11 and the second boiler 12 as boilers for generating steam in the turbine, the first turbine 13 and the second turbine 14 for taking in the steam generated from the boiler
And a power generator system including a first generator 15 generated by the first turbine 13 and a second generator 16 generated by the second turbine 14.

FIG. 3 shows a functional flow diagram.

First, an optimal solution is obtained by the linear programming 21 with reference to the process data of the power generation system, the power balance, the steam mass balance, the steam consumption characteristics of the first turbine 13 and the second turbine 14, and the like. Since this is not the final optimal solution, it is positioned as the primary optimal solution 22, and the optimal solution 23 of the first turbine 13 and the optimal solution 24 of the second turbine 14 are obtained. Here, when the No. 2 turbine 14 is positioned as a facility for pursuing power generation efficiency and the No. 1 turbine 13 is positioned as a facility for securing electric power and steam load, the No. 2 turbine 14 has a valve point characteristic based on the valve point characteristics of the No. 2 turbine 14. An optimum solution 25 for improving the power generation efficiency is obtained, and an optimum solution 26 for the first turbine 13 is obtained from the optimum solution 25 so that the electric power and the steam amount required for the load are satisfied. Here, it is confirmed that the power balance of the power generation system equipment, the steam mass balance, and the like are satisfied, and the power and steam optimal load distribution execution 27 is performed.

FIG. 4 shows the steam consumption characteristics of the first turbine 13 and the second turbine 14. The generator output 1P of the 1st generator 15 which is the 1T optimal solution 23 obtained by the primary optimal solution 22 and the main steam flow rate 1S of the 1st turbine 13 are defined as the power output of the 2nd generator 16 which is the 2T optimal solution 24. 2P and the main steam flow rate 25 of the No. 2 turbine 14, and the low pressure bleed steam flow rate LB1 and the medium pressure bleed steam flow MB of the No. 1 turbine 13
The steam consumption characteristic is assumed to be 1 as the low-pressure extracted steam flow rate LB2 and the medium-pressure extracted steam flow rate MB2 of the No. 2 turbine 14.

FIG. 5 shows valve point characteristics of the first turbine 13 and the second turbine 14. 2 based on the valve point characteristics of the No. 2 turbine 14 based on the No. 2 power output 2P
The 2T generator output 3P at the valve point and the 2nd turbine main steam flow rate 3542 at the valve point from the T optimal solution 25, and based on this, the 1T optimal solution 26 obtained from the change for compensating the power and steam load of the equipment Further, valve point characteristics as the first generator output OP and the first turbine main steam flow rate OS are shown.

[0015]

According to the present invention, it is possible to provide a power optimizing management apparatus which simplifies a method for obtaining an optimal power and steam load distribution solution, and which can improve power generation operation efficiency.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a power optimization management device according to an embodiment of the present invention.

FIG. 2 is a system explanatory diagram of a power generation facility.

FIG. 3 is an explanatory diagram of a function flow of the power optimization management device.

FIG. 4 is an explanatory diagram of a steam consumption characteristic.

FIG. 5 is an explanatory diagram of valve point characteristics.

[Explanation of symbols]

 1: Process data input / output management means 2: Power optimization function execution means 3: Steam consumption characteristic management means 4: Valve point characteristic management means

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F01K 13/02 F01D 17/24

Claims (1)

(57) [Claims] 1. Electric power and steam load in private power generation equipment
In order to obtain an optimal solution for the allocation, process data input / output management means for managing the input / output of power data and steam flow rate data, and power generation of the private power generation facility based on the process data managed by the process data input / output management means Power optimizing function executing means for optimally distributing power and generated steam, steam consumption characteristic managing means for managing steam consumption characteristics of a corresponding turbine, and valve point characteristic management for managing valve point characteristics of the turbine And a power optimization management device.