BSI PD IEC/TS 62786:2017
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Distributed energy resources connection with the grid
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 28 |
IEC TS 62786:2017(E) provides principles and technical requirements for distributed energy resources (DERs) connected to the distribution network. It applies to the planning, design, operation and connection of DERs to distribution networks. It includes general requirements, connection scheme, choice of switchgear, normal operating range, immunity to disturbances, active power response to frequency deviation, reactive power response to voltage variations and voltage changes, EMC and power quality, interface protection, connection and start to generate electrical power, active power management, monitoring, control and communication, and conformance tests. This document specifies interface requirements for connection of generating plants with the distribution network operating at a nominal frequency of 50 Hz or 60 Hz. DERs include distributed generation and permanently connected electrical energy storage in the form of synchronous generators, asynchronous generators, converters, etc., connected to the medium voltage (MV) or low voltage (LV) distribution network.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | CONTENTS |
| 6 | FOREWORD |
| 8 | 1 Scope and object 2 Normative references 3 Terms and definitions |
| 12 | Figure 1 – Electricity generating plant connected to a distribution network (schematic view of switches) |
| 13 | 4 Requirements on generating plants 4.1 General |
| 14 | 4.2 Connection scheme 4.3 Choice of switchgear 4.3.1 General 4.3.2 Interface switch 4.4 Normal operating range 4.4.1 General 4.4.2 Operating frequency range |
| 15 | 4.4.3 Operating voltage range 4.5 Immunity to disturbances 4.5.1 General 4.5.2 Rate of change of frequency (ROCOF) immunity 4.5.3 Under voltage ride through (UVRT) requirements Tables Table 1 – Operating frequency requirements of DERs Table 2 – Operating voltage requirements of DERs |
| 16 | 4.5.4 Over voltage ride through (OVRT) requirements 4.6 Active power response to frequency deviation Figure 2 – Under voltage ride through capability requirements of DER |
| 17 | 4.7 Reactive power response to voltage variations and voltage changes 4.7.1 General 4.7.2 Reactive power control 4.7.3 Dynamic reactive power support capabilities 4.8 EMC and power quality 4.8.1 General |
| 18 | 4.8.2 Direct current (DC) injection 4.9 Interface protection |
| 19 | 4.10 Connection and start to generate electrical power 4.10.1 General 4.10.2 Connection of synchronous generators 4.10.3 Auto reclose of distribution lines Table 3 – Interface protection functions |
| 20 | 4.11 Active power management 4.12 Monitoring, control and communication 4.12.1 Monitoring and control 4.12.2 Communication 5 Conformance tests |
| 21 | Annex A (normative) Operating frequency range Table A.1 – Continuous operating frequency range Table A.2 – Limited operating frequency range |
| 22 | Annex B (normative) Operating voltage range Table B.1 – Continuous operating voltage range Table B.2 – Limited operating voltage range |
| 23 | Annex C (normative) Under voltage ride through capability of DERs Table C.1 – UVRT capability of DERs with an interface to the grid based on a synchronous generator Table C.2 – UVRT capability of DERs with an interface to the grid based on non-synchronous generators (eg. converters, DFIG, etc.) |
| 24 | Annex D (normative) Over voltage ride through parameters Table D.1 – Medium voltage OVRT requirements |
| 25 | Bibliography |
