{"id":245607,"date":"2024-10-19T16:09:18","date_gmt":"2024-10-19T16:09:18","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-61724-12017-tc\/"},"modified":"2024-10-25T11:09:48","modified_gmt":"2024-10-25T11:09:48","slug":"bs-en-61724-12017-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-61724-12017-tc\/","title":{"rendered":"BS EN 61724-1:2017 – TC"},"content":{"rendered":"

IEC 61724-1:2017 outlines equipment, methods, and terminology for performance monitoring and analysis of photovoltaic (PV) systems. It addresses sensors, installation, and accuracy for monitoring equipment in addition to measured parameter data acquisition and quality checks, calculated parameters, and performance metrics. In addition, it serves as a basis for other standards which rely upon the data collected.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
76<\/td>\nundefined <\/td>\n<\/tr>\n
81<\/td>\nCONTENTS <\/td>\n<\/tr>\n
84<\/td>\nFOREWORD <\/td>\n<\/tr>\n
86<\/td>\nINTRODUCTION
Figures
Figure 1 \u2013 Possible elements of PV systems <\/td>\n<\/tr>\n
88<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
89<\/td>\n3 Terms and definitions <\/td>\n<\/tr>\n
92<\/td>\n4 Monitoring system classification
5 General
5.1 Measurement uncertainty
Tables
Table 1 \u2013 Monitoring system classifications and suggested applications <\/td>\n<\/tr>\n
93<\/td>\n5.2 Calibration
5.3 Repeated elements
5.4 Power consumption
5.5 Documentation
5.6 Inspection <\/td>\n<\/tr>\n
94<\/td>\n6 Data acquisition timing and reporting
6.1 Sampling, recording, and reporting
Figure 2 \u2013 Sampling, recording, and reporting <\/td>\n<\/tr>\n
95<\/td>\n6.2 Timestamps
7 Measured parameters
7.1 General requirements
Table 2 \u2013 Sampling and recording interval requirements <\/td>\n<\/tr>\n
97<\/td>\nTable 3 \u2013 Measured parameters and requirements for each monitoring system class <\/td>\n<\/tr>\n
99<\/td>\n7.2 Irradiance
7.2.1 On-site irradiance measurement
Table 4 \u2013 Relation between system size (AC) and number of sensors for specific sensors referenced in Table 3 <\/td>\n<\/tr>\n
100<\/td>\nTable 5 \u2013 Sensor choices and requirements for in-plane and global irradiance <\/td>\n<\/tr>\n
101<\/td>\nTable 6 \u2013 Irradiance sensor alignment accuracy <\/td>\n<\/tr>\n
102<\/td>\nTable 7 \u2013 Irradiance sensor maintenance requirements <\/td>\n<\/tr>\n
104<\/td>\n7.2.2 Satellite remote sensing of irradiance <\/td>\n<\/tr>\n
105<\/td>\n7.3 Environmental factors
7.3.1 PV module temperature
Table 8 \u2013 PV module temperature sensor maintenance requirements <\/td>\n<\/tr>\n
106<\/td>\n7.3.2 Ambient air temperature
7.3.3 Wind speed and direction
Table 9 \u2013 Ambient air temperature sensor maintenance requirements <\/td>\n<\/tr>\n
107<\/td>\n7.3.4 Soiling ratio
Table 10 \u2013 Wind sensor maintenance requirements <\/td>\n<\/tr>\n
109<\/td>\n7.3.5 Rainfall
7.3.6 Snow
7.3.7 Humidity <\/td>\n<\/tr>\n
110<\/td>\n7.4 Tracker system
7.4.1 Single-axis trackers
7.4.2 Dual-axis trackers for >20x systems
7.5 Electrical measurements <\/td>\n<\/tr>\n
111<\/td>\n7.6 External system requirements
8 Data processing and quality check
8.1 Daylight hours
Table 11 \u2013 Inverter-level electrical measurement requirements
Table 12 \u2013 Plant-level AC electrical output measurement requirements <\/td>\n<\/tr>\n
112<\/td>\n8.2 Quality check
8.2.1 Removing invalid readings
8.2.2 Treatment of missing data
9 Calculated parameters
9.1 Overview <\/td>\n<\/tr>\n
113<\/td>\n9.2 Summations
9.3 Irradiation
Table 13 \u2013 Calculated parameters <\/td>\n<\/tr>\n
114<\/td>\n9.4 Electrical energy
9.4.1 General
9.4.2 DC output energy
9.4.3 AC output energy
9.5 Array power rating
9.5.1 DC power rating
9.5.2 AC power rating
9.6 Yields
9.6.1 General <\/td>\n<\/tr>\n
115<\/td>\n9.6.2 PV array energy yield
9.6.3 Final system yield
9.6.4 Reference yield
9.7 Yield losses
9.7.1 General
9.7.2 Array capture loss
9.7.3 Balance of systems (BOS) loss <\/td>\n<\/tr>\n
116<\/td>\n9.8 Efficiencies
9.8.1 Array (DC) efficiency
9.8.2 System (AC) efficiency
9.8.3 BOS efficiency
10 Performance metrics
10.1 Overview <\/td>\n<\/tr>\n
117<\/td>\n10.2 Summations
10.3 Performance ratios
10.3.1 Performance ratio
Table 14 \u2013 Performance metrics <\/td>\n<\/tr>\n
118<\/td>\n10.3.2 Temperature-corrected performance ratios <\/td>\n<\/tr>\n
119<\/td>\n10.4 Performance indices <\/td>\n<\/tr>\n
120<\/td>\n11 Data filtering
11.1 Use of available data
11.2 Filtering data to specific conditions
11.3 Reduced inverter, grid, or load availability <\/td>\n<\/tr>\n
121<\/td>\nAnnex A (informative)Sampling interval
A.1 General considerations
A.2 Time constants
A.3 Aliasing error <\/td>\n<\/tr>\n
122<\/td>\nA.4 Example <\/td>\n<\/tr>\n
123<\/td>\nAnnex B (informative)Module backsheet temperature sensor selection and attachment
B.1 Objective
B.2 Sensor and material selection
B.2.1 Optimal sensor types
B.2.2 Optimal tapes
B.2.3 Cyanoacrylate adhesives and backsheet integrity <\/td>\n<\/tr>\n
124<\/td>\nB.3 Sensor attachment method
B.3.1 Permanent versus temporary
B.3.2 Attachment location
B.3.3 Sensor attachment <\/td>\n<\/tr>\n
125<\/td>\nFigure B.1 \u2013 Sensor attachment, permanent
Figure B.2 \u2013 Sensor attachment, temporary
Figure B.3 \u2013 Sensor element wire strain relief <\/td>\n<\/tr>\n
127<\/td>\nAnnex C (informative)Derate factors <\/td>\n<\/tr>\n
128<\/td>\nAnnex D (normative)Systems with local loads, storage, or auxiliary sources
D.1 System types
Figure D.1 \u2013 Energy flow between possible elements of different PV system types <\/td>\n<\/tr>\n
129<\/td>\nTable D.1 \u2013 Elements of different PV system types <\/td>\n<\/tr>\n
130<\/td>\nD.2 Parameters and formulas
Table D.2 \u2013 Parameters and equations for different system types <\/td>\n<\/tr>\n
136<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Tracked Changes. Photovoltaic system performance – Monitoring<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n138<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":245612,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-245607","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/245607","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/245612"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=245607"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=245607"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=245607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}