JPS55114818A - Changeover system of initial pressure control in combined-cycle plant - Google Patents
Changeover system of initial pressure control in combined-cycle plantInfo
- Publication number
- JPS55114818A JPS55114818A JP2083879A JP2083879A JPS55114818A JP S55114818 A JPS55114818 A JP S55114818A JP 2083879 A JP2083879 A JP 2083879A JP 2083879 A JP2083879 A JP 2083879A JP S55114818 A JPS55114818 A JP S55114818A
- Authority
- JP
- Japan
- Prior art keywords
- changeover
- turbine
- ipr
- load
- bypass valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
PURPOSE: To enable a changeover operation without changes of the load or the main steam pressure when the changeover operation is performed into IPR (turbine initial pressure control), by using the full closing of a turbine bypass valve and the reaching to an objective load as a factor of the changeover start to IPR.
CONSTITUTION: In the combined-cycle plant, a generator 3 is driven by a gas turbine 2 simultaneously a steam is generated by an exhaust gas from the gas turbine 2 in a waste heat recovery boiler 7 and a steam turbine 13 is actuated by said steam. To perform a changeover operation of the control of a control valve 12 and IPR at the time of starting, between the reaching to an objective load and the full closing of a turbine bypass valve 17, whichever one comes to occur first, the earlier time of them is determined as the timing of the changeover start. For instance, when the both changeover factors are caused at the same time, IPR changeover operation and a load limiter upper limiting operation of the turbine bypass control resetting are successively performed. While for the full closing of the bypass valve to be caused earlier, an automatic operation of the initial pressure regulator, rising operation of a predetermined value of the turbine bypass valve and upper limit operation of the load limiter are successively performed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2083879A JPS55114818A (en) | 1979-02-26 | 1979-02-26 | Changeover system of initial pressure control in combined-cycle plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2083879A JPS55114818A (en) | 1979-02-26 | 1979-02-26 | Changeover system of initial pressure control in combined-cycle plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55114818A true JPS55114818A (en) | 1980-09-04 |
Family
ID=12038205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2083879A Pending JPS55114818A (en) | 1979-02-26 | 1979-02-26 | Changeover system of initial pressure control in combined-cycle plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55114818A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03267512A (en) * | 1990-03-19 | 1991-11-28 | Toshiba Corp | Steam turbine controller |
| KR20150076112A (en) * | 2013-12-26 | 2015-07-06 | 가부시끼가이샤 도시바 | Controlling apparatus and starting method |
-
1979
- 1979-02-26 JP JP2083879A patent/JPS55114818A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03267512A (en) * | 1990-03-19 | 1991-11-28 | Toshiba Corp | Steam turbine controller |
| KR20150076112A (en) * | 2013-12-26 | 2015-07-06 | 가부시끼가이샤 도시바 | Controlling apparatus and starting method |
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