BSI PD IEC TR 61850-90-7:2023 – TC
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Tracked Changes. Communication networks and systems for power utility automation – Object models for power converters in distributed energy resources (DER) systems
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 193 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | 30481467 |
| 128 | A-30480207 |
| 129 | undefined |
| 131 | CONTENTS |
| 134 | FOREWORD |
| 136 | 1 Scope 2 Normative references 3 Terms, definitions, acronyms and abbreviated terms |
| 137 | 3.1 Terms and definitions |
| 139 | 3.2 Acronyms 3.3 Abbreviated terms |
| 140 | 4 Overview of power converter-based DER functions 4.1 General |
| 141 | 4.2 Power converter configurations and interactions |
| 143 | 4.3 Power converter methods Figures Figure 1 – DER management hierarchical interactions:autonomous, loosely-coupled, broadcast/multicast |
| 144 | 4.4 Power converter functions |
| 145 | 4.5 Differing DER architectures 4.5.1 Conceptual architecture: electrical coupling point (ECP) 4.5.2 Conceptual architecture: point of common coupling (PCC) |
| 146 | 4.5.3 Utility interactions directly with power converters or indirectly via a customer EMS 4.5.4 Communication profiles Figure 2 – Electrical Connection Points (ECP)and Point of Common Coupling (PCC) |
| 147 | 4.6 General sequence of information exchange interactions |
| 148 | 5 Concepts and constructs for managing power converter functions 5.1 Basic settings of power converters 5.1.1 Nameplate values versus basic settings 5.1.2 Power factor and power converter quadrants Tables Table 1 – Producer Reference Frame (PRF) conventions |
| 149 | Figure 3 – Producer and Consumer Reference Frame conventions |
| 150 | 5.1.3 Maximum watts, vars, and volt-amp settings Figure 4 – EEI power factor sign convention |
| 151 | 5.1.4 Active power ramp rate settings Figure 5 – Working areas for different modes |
| 152 | 5.1.5 Voltage phase and correction settings 5.1.6 Charging settings 5.1.7 Example of basic settings Figure 6 – Example of voltage offsets (VRefOfs)with respect to the reference voltage (VRef) |
| 153 | 5.1.8 Basic setting process 5.2 Modes for managing autonomous behaviour 5.2.1 Benefits of modes to manage DER at ECPs Table 2 – Example basic settings for a storage DER unit |
| 154 | 5.2.2 Modes using curves to describe behaviour Figure 7 – Example of modes associated with different ECPs |
| 155 | 5.2.3 Paired arrays to describe mode curves Figure 8 – Example of a volt-var mode curve |
| 156 | 5.2.4 Percentages as size-neutral parameters: voltage and var calculations 5.2.5 Hysteresis as values cycle within mode curves |
| 157 | 5.2.6 Low pass exponential time rate Figure 9 – Example of hysteresis in volt-var curves Figure 10 – Example of deadband in volt-var curves |
| 158 | 5.2.7 Ramp rates 5.2.8 Randomized response times Figure 11 – Local function block diagram Figure 12 – Time domain response of first order low pass filter |
| 159 | 5.2.9 Timeout period 5.2.10 Multiple curves for a mode 5.2.11 Multiple modes 5.2.12 Use of modes for loosely coupled, autonomous actions 5.3 Schedules for establishing time-based behaviour 5.3.1 Purpose of schedules |
| 160 | 5.3.2 Schedule components |
| 161 | 6 DER management functions for power converters 6.1 Immediate control functions for power converters 6.1.1 General Figure 13 – Interrelationships of schedule controllers,schedules, and schedule references |
| 162 | 6.1.2 Function INV1: connect / disconnect from grid 6.1.3 Function INV2: adjust maximum generation level up/down |
| 163 | 6.1.4 Function INV3: adjust power factor 6.1.5 Function INV4: request active power (charge or discharge storage) |
| 164 | 6.1.6 Function INV5: pricing signal for charge/discharge action |
| 165 | 6.2 Modes for volt-var management 6.2.1 VAr management modes using volt-var arrays |
| 166 | 6.2.2 Example setting volt-var mode VV11: available var support mode with no impact on watts Figure 14 – Volt-var mode VV11 – available vars mode |
| 167 | 6.2.3 Example setting volt-var mode VV12: maximum var support mode based on WMax |
| 168 | Figure 15 – Power converter mode VV12 – Maximum var support mode based on WMax |
| 169 | 6.2.4 Example setting volt-var mode VV13: static power converter mode based on settings Figure 16 – Power converter mode VV13 –Example: static var support mode based on VArMax |
| 170 | 6.2.5 Example setting volt-var mode VV14: passive mode with no var support 6.3 Modes for frequency-related behaviours 6.3.1 Frequency management modes |
| 171 | 6.3.2 Frequency-watt mode FW21: high frequency reduces active power Figure 17 – Frequency-watt mode curves |
| 172 | Figure 18 – Frequency-based active power reduction |
| 173 | 6.3.3 Frequency-watt mode FW22: constraining generating/charging by frequency Figure 19 – Frequency-based active power modification with the use of an array |
| 174 | Figure 20 – Example of a basic frequency-watt mode configuration |
| 175 | Figure 21 – Example array settings with hysteresis Figure 22 – Example of an asymmetrical hysteresis configuration |
| 176 | 6.4 Dynamic reactive current support during abnormally high or low voltage levels 6.4.1 Purpose of dynamic reactive current support 6.4.2 Dynamic reactive current support mode TV31: support during abnormally high or low voltage levels Figure 23 – Example array configuration for absorbed watts vs. frequency |
| 177 | Figure 24 – Basic concepts of the dynamic reactive current support function Figure 25 – Calculation of delta voltage over the filter time window |
| 178 | Figure 26 – Activation zones for dynamic reactive current support |
| 179 | Figure 27 – Alternative gradient behaviour, selected by ArGraMod Figure 28 – Settings to define a blocking zone |
| 180 | 6.5 Low/high voltage ride-through curves for “must disconnect” and “must remain connected” zones 6.5.1 Purpose of L/HVRT 6.5.2 “Must disconnect” (MD) and “must remain connected” (MRC) curves |
| 181 | Figure 29 – Must disconnect and must remain connected zones Figure 30 – Examples of “must remain connected” requirements for different regions |
| 182 | 6.6 Modes for watt-triggered behaviours 6.6.1 Watt-power factor mode WP41: feed-in power controls power factor 6.6.2 Alternative watt-power factor mode WP42: feed-in power controls power factor Figure 31 – Power factor controlled by feed-in power |
| 183 | 6.7 Modes for voltage-watt management 6.7.1 Voltage-watt mode VW51: voltage-watt management: generating by voltage 6.7.2 Voltage-watt mode VW52: voltage-watt management: charging by voltage Figure 32 – Example configuration curve for maximum watts vs. voltage |
| 184 | 6.8 Modes for behaviours triggered by non-power parameters 6.8.1 Temperature mode TMP 6.8.2 Pricing signal mode PS Figure 33 – Example configuration curve for maximum watts absorbed vs. voltage |
| 185 | 6.9 Setting and reporting functions 6.9.1 Purpose of setting and reporting functions 6.9.2 Establishing settings DS91: modify power converter-based DER settings 6.9.3 Event logging DS92: log alarms and events, retrieve logs |
| 187 | Table 3 – Events |
| 189 | 6.9.4 Reporting status DS93: selecting status points, establishing reporting mechanisms Table 4 – Examples of status points |
| 191 | Bibliography |
