The purpose of this European Standard is to provide a test procedure to evaluate the performance of islanding prevention measures used with utility-interconnected PV systems.<\/p>\n
This standard does not specify settings parameters (voltage and frequency trip magnitude and trip time) nor pass\/fail criteria, because the EN 50438 and\/or National standards and\/or grid codes should be taken into account for this purpose.<\/p>\n
This standard describes a guideline for testing the performance of automatic islanding prevention measures installed in or with single or multi-phase utility interactive PV inverters connected to the utility grid. The test procedure and criteria described are minimum requirements that will allow repeatability. Additional requirements or more stringent criteria may be specified if demonstrable risk can be shown. Inverters and other devices meeting the requirements of this standard are considered non-islanding as defined in CLC\/TS 61836.<\/p>\n
This standard may be applied to other types of utility-interconnected systems (e.g. inverter-based microturbine and fuel cells, induction and synchronous machines). However, technical review may be necessary for other than inverter-based PV systems.<\/p>\n
Alternative testing procedures to evaluate the performance of islanding prevention may be allowed by national standards and\/or grid codes.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 25<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 1 Scope and object 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | 4 Testing circuit Tables Table 1 \u2013 Parameters to be measured in real time <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 5 Testing equipment 5.1 Measuring instruments 5.2 DC power source Figure 1 \u2013 Test circuit for islanding detection function in a power conditioner (inverter) <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Table 2 \u2013 Specification of array simulator (test conditions) Table 3 \u2013 PV array test conditions <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | 5.3 AC power source 5.4 AC loads 6 Test for single or multi-phase inverter 6.1 Test procedure Table 4 \u2013 AC power source requirements <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Table 5 \u2013 Test conditions <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | 6.2 Pass\/fail criteria 7 Documentation Table 6 \u2013 Load imbalance (real, reactive load) for test condition A (EUT output = 100 %) Table 7 \u2013 Load imbalance (reactive load) for test condition B (EUT output = 50 % \u2013 66\u00a0%) and test condition C (EUT output = 25 % \u2013 33\u00a0%) <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Table 8 \u2013 Specification of the EUT provided by manufacturer (example) <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Table 9 \u2013 List of tested condition and run on time (example) <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Table 10 \u2013 Specification of testing equipment (example) <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Annex A (informative) Islanding as it applies to PV systems <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Annex B (informative) Test for independent islanding detection device (relay) Figure B.1 \u2013 Test circuit for independent islanding detection device (relay) <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Annex C (informative) Gate blocking signal <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Test procedure of islanding prevention measures for utility-interconnected photovoltaic inverters<\/b><\/p>\n |