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eLibrary > PD IEC/TR 61850-7-510:2012 Communication networks and systems for power utility automation - Basic communication structure. Hydroelectric power plants. Modelling concepts and guidelines >

PD IEC/TR 61850-7-510:2012 Communication networks and systems for power utility automation - Basic communication structure. Hydroelectric power plants. Modelling concepts and guidelines, 2012

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PD IEC/TR 61850-7-510:2012 Communication networks and systems for power utility automation - Basic communication structure. Hydroelectric power plants. Modelling concepts and guidelines, 2012

30262049-VOR.pdf [Go to Page]
CONTENTS
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Overall communication structure in a hydropower plant [Go to Page]
3.1 Abstract communication structure
3.2 Communication network
3.3 Operational modes
3.4 Fundamental control strategies
3.5 Hydro power plant specific information
4 Structuring control systems [Go to Page]
4.1 Basic use of logical nodes
4.2 Logical device modelling
4.3 Example of application for an excitation system [Go to Page]
4.3.1 General
4.3.2 Voltage regulation example
4.3.3 PSS example
4.4 Example of application for a turbine governor system [Go to Page]
4.4.1 Conditions of this example
4.4.2 Signal hierarchy
4.4.3 Basic overview
4.4.4 Detailed description of used structure
4.5 Examples of how to reference a start / stop sequencer of a unit [Go to Page]
4.5.1 General
4.5.2 Unit sequences definition with IEC 61850
4.5.3 Start sequence from a state “stopped” to a state "speed no load not excited” (included in LD named “SEQ_SnlNexStr”)
4.5.4 Start sequence from state “speed no load not excited” to state “generation” (included in LD named “SEQ_SnlExcStr” and “SEQ_GenStr”)
4.5.5 Stop sequence from state “generator” to state “speed no load not excited” (included in LD named “SEQ_GridFaultStop”)
4.5.6 Shutdown sequence from state “generator” to state “stopped” (SEQ_NormalStop)
4.5.7 Quick shutdown sequence from state “generator” to state “stopped” (SEQ_QuickStop)
4.5.8 Emergency shutdown sequence from state “generator” to state “stopped” (SEQ_EmgStop)
5 Variable speed system example [Go to Page]
5.1 Example of block diagrams and logical nodes of variable speed pumped storage system
5.2 Example of application for an excitation system of variable speed pumped storage [Go to Page]
5.2.1 General
5.2.2 Automatic power regulator example
5.2.3 Power detector example
5.2.4 Gate pulse generator example
5.3 Example of governor system [Go to Page]
5.3.1 Guide vane opening function example
5.3.2 Guide vane controller example
5.3.3 Speed controller example
5.3.4 Optimum speed function example
5.4 Example of how to reference a start / stop sequencer for variable speed pumped storage system [Go to Page]
5.4.1 Unit sequences definition for conventional and variable speed pumped storage
5.4.2 Start sequence from a state "Stopped" to a state "Synchronous Condenser (SC) mode in pump direction"
5.4.3 Start sequence from a state "Synchronous Condenser (SC) mode in Pump direction" to a state "Pumping"
5.4.4 Mode Transition sequence from a state "Pumping" to a state "Synchronous Condenser (SC) mode in Pump direction"
5.4.5 Sequence from a state "pumping" to a state "stopped"
5.4.6 Emergency shutdown sequence from a state "pumping" to a state "stopped"
5.4.7 Shutdown sequence from a state "Synchronous Condenser (SC) mode in pump direction" to a state "stopped"
5.4.8 Emergency shutdown sequence from a state "Synchronous Condenser (SC) mode in pump direction" to a state "stopped"
6 Pump start priorities of a high pressure oil system [Go to Page]
6.1 Example of a pump start priority for high pressure oil system [Go to Page]
6.1.1 General
6.1.2 Sequence to manage a pump start priorities
6.1.3 Sequence to manage a pump
7 Addressing structures, examples of mapping [Go to Page]
7.1 Basic principles (IEC 61850-6)
7.2 Decentralised ICD file management
7.3 Centralised ICD file management
7.4 Power plant structure – ISO/TS 16952-10 (Reference Designation System – Power Plants) [Go to Page]
7.4.1 ISO/TS 16952-10 (Reference Designation System – Power Plants)
7.4.2 Example 1: Wicket gate indications
7.4.3 Example 2: 3 Phase Measurement
7.4.4 Example 3: Speed Controller
7.4.5 Example 4: Speed measurement with some thresholds
7.4.6 Example 5: Common turbine information
8 Examples of how to use various types of curves and curve shape descriptions
9 Examples of voltage matching function
Bibliography
Figures [Go to Page]
Figure 1 – Structure of a hydropower plant
Figure 2 – Simplified network of a hydropower plant
Figure 3 – Principles for the joint control function
Figure 4 – Water flow control of a turbine
Figure 5 – Pressurised oil systems with LD suffix and with LN prefix
Figure 6 – Examples of logical nodes used in an excitation system
Figure 7 – Example of logical devices of the regulation part of an excitation system
Figure 8 – AVR basic regulator
Figure 9 – Superimposed regulators, power factor regulator
Figure 10 – Superimposed regulators, over-excitation limiter
Figure 11 – Superimposed regulators, under-excitation limiter
Figure 12 – Superimposed regulators, follow up
Figure 13 – Power system stabilizer function
Figure 14 – Signal hierarchy
Figure 15 – Use of Logical Node HGOV
Figure 16 – Governor control
Figure 17 – Flow control
Figure 18 – Level control
Figure 19 – Speed control
Figure 20 – Limitations
Figure 21 – Actuator control
Figure 22 – Sequencer overview
Figure 23 – Typical block diagram in pumping operation
Figure 24 – Typical block diagram in generating operation
Figure 25 – Typical block diagram in synchronous condenser mode
Figure 26 – Automatic power regulator
Figure 27 – Power detector
Figure 28 – Gate pulse generator
Figure 29 – Guide vane opening function
Figure 30 – Guide vane controller
Figure 31 – Speed controller
Figure 32 – Optimum speed function
Figure 33 – Sequencer overview
Figure 34 – Graphical representation of the high pressure oil pumping unit
Figure 35 – Example of pump priority start logic sequence
Figure 36 – Example of pump start logic sequence
Figure 37 – Exchange of ICD files between system configurators
Figure 38 – Static Data exchange with vendor's configuration tool
Figure 39 – Tree structure of a system using RDS-PP
Figure 40 – Hydraulic correlation curve
Figure 41 – Turbine correlation curve
Figure 42 – Example of traditional voltage adjusting pulses
Figure 43 – Example of mapping of the pulse time in IEC 61850
Figure 44 – Example of an IEC 61850 voltage adjusting command
Tables [Go to Page]
Table 1 – IED within a simplified single unit power plant
Table 2 – Recommended LN prefixes
Table 3 – Logical device structure
Table 4 – Logical device names for functions
Table 5 – Typical sequences
Table 6 – Logical device names for sequence function groups
Table 7 – RDS-PP designation codes for Hydropower use [Go to Page]

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