IEEE 1207 2004

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IEEE Guide for the Application of Turbine Governing Systems for Hydroelectric Generating Units

Published By	Publication Date	Number of Pages
IEEE	2004	130

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Description

New IEEE Standard – Inactive – Superseded. This guide is intended to complement IEEE Std 125-1988TM, providing application details and addressing the impact of plant and system features upon hydroelectric unit governing performance. It provides guidance for the design and application of hydroelectric turbine governing systems. There is a heightened awareness within the electric utility industry of the importance in the effective application of governing systems for dynamic stability. The need exists to provide guidance in the effective governing system application for a better understanding among users.

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PDF Pages	PDF Title
2	IEEE Guide for the Application of Turbine Governing Systems for Hydroelectric Generating Units
4	Introduction Notice to users
5	Participants
7	Contents
10	IEEE Guide for the Application of Turbine Governing Systems for Hydroelectric Generating Units 1. Overview 1.1 Scope 1.2 Purpose 2. References
11	3. Definitions 3.1 beta ratio: A measure of the efficiency of a hydraulic oil filter, defined for a specific par… 3.2 damping ratio: This ratio of a second-order closed-loop control system is defined by: 3.3 electrohydraulic governor (sometimes called an electric-hydraulic governor): A turbine govern…
12	3.4 governor control system: A feedback control system that controls the speed and power output o… 3.5 islanded operation: Operation of a generating unit that is interconnected with a relatively s… 3.6 isolated operation: Operation of a generating unit without being interconnected with other ge… 3.7 kidney loop filter: A hydraulic oil filtration system in which oil from the system’s sump tan… 3.8 mechanical-hydraulic governor: A turbine governing system that typically uses rotating weight… 3.9 turbine governing system: A control system that controls the operation of a prime mover. The … 4. Functions and characteristics 4.1 Servomotor position feedback
13	4.2 Servomotor position 4.3 Servomotor time
14	4.4 Cushioning time 4.5 Permanent speed droop and speed regulation
20	4.6 Governor speed deadband 4.7 Blade control deadband 4.8 Governor deadtime
21	4.9 Stability 4.10 Rated speed 4.11 Overspeed 4.12 Underspeed 4.13 Maximum momentary speed variation 4.14 Runaway speed
22	4.15 Rated head 4.16 Steady-state governing speed band 4.17 Steady-state governing load band 4.18 Speed 4.19 Speed reference
23	4.20 Speed deviation 4.21 Power output 4.22 Rated power output 4.23 Maximum power output 4.24 Governor controller
30	4.25 Stabilizing adjustments
31	4.26 Water inertia time
32	4.27 Mechanical inertia time
33	4.28 Impact upon stability 4.29 Automatic generation control
34	4.30 Efficiency optimization 5. Elements of the turbine governing system 5.1 Setpoint controller
37	5.2 Actuator
41	5.3 Controlled process
43	5.4 Shutdown control 5.5 System examples 5.6 System modifications 6. Equipment specifications 6.1 Cooperation of manufacturers
44	6.2 Governor equipment
47	6.3 Components or auxiliary devices
67	6.4 Types of turbine governing system installations
68	7. Performance specifications 7.1 Stability
73	7.2 Permanent speed droop and speed regulation 7.3 Deadband 7.4 Deadtime 7.5 Range of governor speed changer adjustment 7.6 Manual control
74	7.7 Turbine control servomotor time adjustment
76	7.8 Governor damping adjustments
77	8. Information to be provided by the manufacturer 8.1 Information to be provided at the time of submission of proposals 8.2 Drawings 8.3 Operation and maintenance manuals
78	9. Acceptance tests 9.1 Factory acceptance tests 9.2 Field acceptance tests
84	9.3 Performance auditing
85	10. Data to be furnished by the purchaser 10.1 Rated turbine output 10.2 Rated head 10.3 Rated speed 10.4 Rated discharge 10.5 Type of setpoint parameter
86	10.6 Ambient conditions 10.7 Seismic requirements 10.8 Surge tank dimensions and type 10.9 Water inertia time 10.10 Pressure regulator valve capacity under full head 10.11 Unit mechanical inertia
87	10.12 Station ac and dc voltages 10.13 Powerhouse drawings showing suggested location of equipment 10.14 Combined servomotor volume, stroke, and timing 10.15 Servomotor design operating pressure
88	10.16 Turbine control servomotor connection sizes 10.17 Servomotor travel direction to close 10.18 Minimum differential pressure required to close 10.19 Gate shaft or deflector shaft direction and angular travel to close 10.20 Required governor capacity 10.21 Turbine control servomotor time: opening and closing 10.22 Results of turbine model tests or index tests
89	10.23 Switchboard instrument specifications 10.24 Speed switch specifications 10.25 Brake actuating medium 10.26 Interface to purchaser equipment 10.27 Special design considerations 10.28 Required initial adjustments 10.29 Complete prototype turbine data
90	Annex A (informative) Bibliography
93	Annex B (informative) Impact of turbine design on governing performance
96	Annex C (informative) Examples of turbine governing systems
99	Annex D (informative) Experience gained from challenging applications
104	Annex E (informative) Governor simulations to demonstrate sensitivity of governor parameters on performance
112	Annex F (informative) Tuning of turbine governing systems
125	Annex G (informative) Verification of turbine governing system performance
128	Annex H (informative) Techniques for evaluating speed control performance of turbine governing systems

Additional information

Standard Title	IEEE Guide for the Application of Turbine Governing Systems for Hydroelectric Generating Units
Published Code	IEEE
Publication Date	2004
Pages Count	130

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