JPS614104U

JPS614104U - Power plant water pump turbine control device

Info

Publication number: JPS614104U
Application number: JP8430784U
Authority: JP
Inventors: 正道本野; 正直阿部
Original assignee: 株式会社日立製作所; 日立エンジニアリング株式会社
Priority date: 1984-06-08
Filing date: 1984-06-08
Publication date: 1986-01-11

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示すシステム構成図、第２
図は給水流量とヘッダ圧力及び給水ポンプ回転数の関係
を示すポンプ運転特性図、第３図はヘツダ圧力とポンプ
回転数との関葆を示す線図、第４図はヘッダ圧力と補正
ゲインの関係を示す線図である。１・・・給水ポンプタービン、２・・・給水ポンプ、３
・・・高圧加減弁、４・・・低圧加減弁、６・・・速度
検出−器、７・・・速度検出器、８・・・速度信号変換
器、９・・・速度信号変換器、２３・・・ヘッダ圧力検
出器、２４・・・脱気器、２６・・・比例積分補正ゲイ
ン発生部、５３・・・蒸気発生装置。Figure 1 is a system configuration diagram showing an embodiment of the present invention;
The figure is a pump operating characteristic diagram showing the relationship between water supply flow rate, header pressure, and water supply pump rotation speed, Figure 3 is a diagram showing the relationship between header pressure and pump rotation speed, and Figure 4 is a diagram showing the relationship between header pressure and correction gain. It is a line diagram showing a relationship. 1... Water supply pump turbine, 2... Water supply pump, 3
... High pressure regulating valve, 4... Low pressure regulating valve, 6... Speed detector, 7... Speed detector, 8... Speed signal converter, 9... Speed signal converter, 23... Header pressure detector, 24... Deaerator, 26... Proportional integral correction gain generation section, 53... Steam generator.

Claims

[Scope of utility model registration request]

Detecting the rotational speed of a feedwater pump turbine that operates a feedwater pump according to the steam pressure supplied from a steam generator, which serves as a driving source for a main steam turbine that drives a power generating structure;
This detected value is compared with a set value for the water supply pump turbine rotation speed that corresponds to the required value of the water supply flow rate for the steam generator to find the deviation, and the water supply pump turbine rotation speed is controlled to suppress this deviation. In a water supply pump turbine control system for a power plant that includes a control unit that outputs a signal and supplies water to a steam generator at a flow rate corresponding to the operation of the water supply pump, the control unit It has a gain correction setting section that generates a correction gain signal for the water supply pump turbine rotation speed control gain that corresponds to the water supply pressure to the equipment, and when the load of the power plant increases, the reference gain for the water supply pump turbine rotation speed control gain is generated. of,
A water pump turbine control device for a power plant, characterized in that by correcting with this correction gain, two-way control is performed without causing a delay in response to a requested command value of rotation speed due to nonlinear water pump characteristics.