Novɛmba 25, 2024
Insay PV plant, fayv kɔmyunikeshɔn link dɛn de ripɔtabl fɔ transmit ɔpreshɔnal data frɔm ɛvri invɛrta to di sɛntral monitarin sistɛm. If wan fayv link intarap, di monitarin sistem nɔ go ebul fɔ gɛt invɛrta data — we min se di PV plant ɔpreshɔn tim nɔ go ebul fɔ no us invɛrta gɛt prɔblɛm, wetin na di pawa autput, ɔ if efyushɔn na nɔmal.
Insay PV plant, fayv kɔmyunikeshɔn link dɛn de ripɔtabl fɔ transmit ɔpreshɔnal data frɔm ɛvri invɛrta to di sɛntral monitarin sistɛm. If wan fayv link intarap, di monitarin sistem nɔ go ebul fɔ gɛt invɛrta data — we min se di PV plant ɔpreshɔn tim nɔ go ebul fɔ no us invɛrta gɛt prɔblɛm, wetin na di pawa autput, ɔ if efyushɔn na nɔmal. Fɔ 100MW PV plant we gɛt pɔtɛnɛshɛl ɔndrɛd invɛrta, if ɔl di fayba link dɛn intarap, di ɔpreshɔn tim fɔ trɔbulshut invɛrta bay invɛrta, pan bɔku bɔku kɔst.
PV plant fayba link dεm de fes yunik envayroment chalenj dεm. Fɔs: ay ambiɛnt tɛmpracha — dɛn kin bil PV plant dɛn na opin eria, wit sɔm tɛmpracha na grɔn we pas 60°C, ɛn fayv kin mek dɛn ol kwik kwik wan we dɛn gɛt ay tɛmpracha. sεkכn: UV εksposhכn — di polyεsta bכfa layεr fכ di fayv de dכn כnda UV rεdyushכn, we de mek di fayv dεm de brok. Tɔd: animal chewing — kebul trench ɛn ovahɛd fayba na PV plant na fayn target fɔ rodɛnt. Fɔs: briz ɛn san — na dɛzat ɛn gobi PV plant, briz ɛn san kin abrayd di fayv ɔda sheath.
So, dɛn fɔ put PV plant fayba tɛst insay di rɛgyula mentenɛns plan. We dɛn de aksept nyu plant, tɛst ɛvri fayv link in transmit pawa, gɛt pawa, ɛn link lɔs. We yu de du savis, tɛst krichɔl link pawa ɛn lɔs ɛvri kwata. Afta fɔlt, yuz di rɛd layt sɔs fɔ fɛn di brek fɔs, dɔn yuz di OPM fɔ chɛk fɔ si if dɛn dɔn ripɛnt am.
Di PV sistem kɔmishɔn faz na wan impɔtant winda fɔ fayv tɛst. na dis stej, כl di fayv link dεm na nyu, εn di tεst data kin sεf lεk ‘hεlth bεslayn’ — dεn kin kכmpεr di fכs tεst risכlt dεm wit dis beslayn.
Di standad kɔmishɔn wokflɔ na lɛk dis. Step wan: fɔ pripia fɔ di tɛst bifo tɛm. Kɔnfɛm di OPM wɛvlɛnj档位 de mach di sistɛm in wɛvlɛnj (tipikli 1310nm ɔ 1550nm); inspɛkt fayv ɛnd-fes klin; konfam di adapt tayp mach di fayba intafeys. Step tu: transmit-sayd tɛst. Konekt di OPM to di fayba in transmit sayd (tipikli di autput fɔ wan switch ɔ optik mɔdyul) ɛn rid di transmit pawa. Step tri: risiv-sayd tɛst. Konekt di OPM to di fayba in risiv sayd (tipikli di input fɔ ɔda switch ɔ optik mɔdyul) ɛn rid di risiv pawa. Step 4: link lɔs kɔlkyulɛshɔn. Risiv pawa minus transmit pawa ikwal to link loss. Step fayv: rɛd layt verifyeshɔn. Switch to red layt mod ɛn inspɛkt di fayv pat fɔ brok. Step siks: rikodɔ ɔl di data, arkiv as di beslayn.
We dɛn de kɔmishɔn, wan step we izi fɔ fɔgɛt na fɔ tɛst ɔl di spay fayv dɛn. di fayv distribushכn fכm dεm na PV plant dεm tipikli gεt spay fayb dεm — dεn kin nכ aktiv fכs bכt dεn kin nid dεm insay di fכs tεm. If dɛn si se wan spay fayv dɔn brok we dɛn nid am leta, di kɔst fɔ sɔlv prɔblɛm go bɔku pas fɔ tɛst am naw.
Insay PV plant fil tɛst, sɔm opareshɔnal pɔynt dɛn kin rili impɔtant fɔ mek di wok we dɛn de du ɛn di akkuracy bɛtɛ. Fɔs: ‘klin bifo yu tɛst.’ Fayba εnd-fes dכst na di mכst kכmכn kכz fכ abnכmal tεst rεsults. Bifo ɛni tɛst, inspɛkt di ɛnd-fes wit magnifying lens; if i dɔti, klin wit fayv klin stik ɛn rɔm we nɔ gɛt wata. Dis simpul step de avɔyd bɔku bɔku misdiagnosis.
Sɛkɔn: ‘tɛst ɔl tu di fayv dɛn.’ insay fayv link, i kin bi se tu fayv dεm de — wan fכ transmit (Tx), wan fכ risiv (Rx). Link loss kin difrɛn bitwin di tu. We yu tɛst wan nɔmɔ ɛn disayd fɔ du sɔntin, dat kin mek yu nɔ gɛt prɔblɛm wit di ɔda wan. Di kɔrɛkt we fɔ du am na fɔ tɛst ɔl tu ɛn kɔmpia di difrɛns we de pan di lɔs. if di difrεns pas 3dB, wan fayv kin gεt bεnd, krכsh, כ tεrminεshכn ishu.
Tɔd: ‘rɛkɔd di tɛmpracha we de nia di ples.’ di fayv we de lכs de dipεnd pan tεmprachכ — εvri 10°C chenj kin chenj di fayv we de lכs bay lεk 0.1dB/km. If yu nɔ rikodɔ ambiɛnt tɛmpracha we dɛn de tɛst, di analisis we de afta dat nɔ go ebul fɔ no if di chenj dɛn we de apin we di lɔs de sho se di fayv de ol ɔ di tɛmpracha de chenj.
Fɔs: ‘mak abnɔmal link dɛn.’ Afta yu dɔn tɛst, mak ɔl di link dɛn wit lɔs we pas 1.5× di dizayn valyu, tek foto di say dɛn we nɔmal, ɛn trak dɛn. Nɔ jɔs notis dɛn na pepa — ɔplod foto dɛn na di injinɛri manejmɛnt sistem fɔ mek shɔ se di data nɔ lɔs.
Fayv: ‘kɔmpia wan wan tɛm.’ Afta ɛni tɛst, kɔmpia di data we de naw wit di tɛst data we yu bin dɔn du trade. If wan link in lɔs dɔn go ɔp bad bad wan insay shɔt tɛm (we pas 3dB), i kin dɔn bɛnd, krɔs, ɔ tɛmnɛshɔn ol, ɛn dɛn fɔ arenj fɔ sɔlv prɔblɛm.
Siks: ‘tɛst spay fayv dɛn wan wan tɛm.’ di spay fayb dεm, pan כl we dεn nכ de wok naw, dεn fכ stil tεst εvri siks mכnt — fכ mek sכh se dεn rεdi we nid de.
Di ɔltimat prɔpɔzal fɔ fayv tɛst na fɔ gayd di opareshɔn disizhɔn dɛn. Test data nɔ gɛt ɛni valyu te dɛn kɔnvɔyt am to ɔpreshɔn akshɔn. So, fɔ klos di lɔp frɔm tɛst data to ɔpreshɔn disizhɔn na di kɔr fɔ wan fayv mentenɛns sistɛm.
Data-driven fayba mentenɛns inklud tri layers. Lay wan na ‘threshold alerts’ — we wan link in lɔs pas wan threshold we dɛn dɔn sɛt, di sistɛm kin ɔtomɛtik alert di ɔpreshɔn tim fɔ arenj fɔ sɔlv prɔblɛm. Lay tu na ‘trend analysis’ — bay we yu kɔmpia di histrikal data, no di link dɛn wit abnɔmal lɔs rayz rɛt ɛn schedule mentenɛns bifo tɛm. Lay tri na ‘prɛdiktiv mentenɛns’ — bay we yu fit di lɔs-vɛrs-taym kɔv, prɛdikt di link in layf we lɛf ɛn schedule riplesmɛnt bifo i fel.
Fɔ mek dɛn ebul fɔ du dɛn tri layers ya, dɛn nid fɔ gɛt kɔmplit fayv wɛlbɔdi arkiv. Ɛni link in arkiv inklud: link nɔmba, stat ɛn ɛnd ples, fayv tayp, wevlɛnj, dizayn lɔs, istri tɛst data (de, transmit pawa, risiv pawa, link lɔs, ambiɛnt tɛmpracha), anomaly rɛkɔd, ɛn rizɔlt autkam. Yuz profeshɔnal fayba tɛst mɛnejɛmɛnt softwe fɔ manej dis data — Excel fit smɔl skel (tɛn link), we profeshɔnal manejmɛnt softwe fit big skel (ɔndrɛd to tawzin link).
Fɔ PV injinɛri tim, establish fayv tɛst standad frɔm di biginin fɔ di prɔjek — nɔ wet te di prɔjek delivri to补课. Fayba wɛlbɔdi beslayn dɛn we dɛn dɔn mek di tɛm we dɛn de kɔmishɔn di sistɛm de wok as di rɛfrɛns standad fɔ di nɛks tɛn ia we dɛn de du di opareshɔn. If yu nɔ gɛt beslayn, di fiuja tɛst data kin lɔs in kɔmparativ minin.
Fɔ di wan dɛn we de bay, we yu de pik di ikwipmɛnt fɔ tɛst fayv, nɔ kɔmpia di fɔs prayz we dɛn bin de bay nɔmɔ. Tink bak fɔ lɔng tɛm yuz kɔst — inklud kalibreshɔn savis fi, adapt riplesmɛnt kɔst, bateri layf ɛn lɔng layf, ɛn manifakta tɛknikal sɔpɔt rispɔns spid. Wan divays we 20% smɔl bɔt we gɛt adapt dɛn we kin pwɛl izi wan we nid fɔ gɛt pat dɛn we de ovasi kin kɔst mɔ pan ɔl di ɔnaship.
fכ finish, di כltimat gol fכ fayv tεst nכto fכ mכsu di fayv lכs — na fכ mek di fayv nכ intarap di rכng mכment. Fɔ mek dɛn ebul fɔ du dis, tɛst data fɔ translet to ɔpreshɔn akshɔn, ɛn ɔpreshɔn akshɔn fɔ gɛt klia ɔna ɛn dedlayn. Na da tɛm de nɔmɔ fayv tɛst kin rili gi valyu. View the PV Test Instruments Collection
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