DANSK DSF/IEC TS 63019 ED1 PDF

IEC TS 63019 provides a framework from which availability metrics of a PVPS can be derived 301 and reported. It describes how data are categorized and defines generic information 302 categories to which time can be assigned for a PVPS considering internal and external 303 conditions based on fraction of time, system health, and condition by specifying the following: 304 • Generic information categories of a PVPS considering availability and production 305 • Information category priority in order to discriminate between concurrent categories 306 • Entry and exit point for each information category in order to allocate designation of 307 time. 308 The PVPS is comprised of all PV modules, inverters, DC and AC collection systems, grid 309 interconnection equipment, the site, its infrastructure, and all functional service elements. 310 This is further explained in Sections 5.3 and 5.4. 311 Equations in this TS provide normative guidance for standardization. Beyond that, it is not the 312 intention of this TS to specify exactly how other undefined, time-based availability metrics 313 shall be calculated. The annexes should furthermore be regarded as examples and guiding 314 principles for developing methods for calculation and estimation of availability metrics, subject 315 to the knowledge and concurrence for use by the involved stakeholders. Estimates and 316 calculations will also have recommendations of how they are to be used as part of the 317 informative function. 318 It is not in the scope of this TS to determine the method of information acquisition. Relevant 319 IEC standards on data collection and information acquisition are included in the following 320 normative references. IEC 61724-1 has requirements and 61724-3 specifically identifies 321 measured data from Section 6.2.5 on this topic. 322 Availability metrics cannot be derived without important outage information. Questions may 323 require the PVPS operations to properly collect the requisite data such as what equipment or 324 portion of the plant is failing, how long, how often, and how much energy is being lost due to 325 that condition. Asset management questions include the source of the outage (i.e., whose 326 clock is it on? was the outage due to internal or external forces? what power and energy was 327 generated? and what was expected?).