simcenter flotherm new features · 全新smart part: power controller...
TRANSCRIPT
Flotrend Corporation
CAE Department CFD Division
CAE Engineer Cynthia Yang
Simcenter FloTHERM New Features
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主題• Frequency Based Power Control
- 變頻控制功率
• Supply Chain
-ECMXL雙向支援
• Boundary Condition Independent Reduced Order Models
- 輸出簡化模型與高速運算(需購買License: BCI ROM+Thermal Netlist Extraction)
• Thermal Netlist Extraction
-輸出熱阻網路模型與電路耦合分析(需購買License: BCI ROM+Thermal Netlist Extraction)
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FloTHERM 2019.1支援系統
• Windows 10 x64
• Windows 7 x64
• Windows 8 x64
• Windows 8.1 x64
• Windows Server 2012 R2 x64
• Windows Server 2012 x64
• Windows Server 2016 x64
＊V2019.2起不再支援32位元系統
＊軟體下載連結:https://www.flotrend.com.tw/softwave/FloTHERM/2019/simcenter_flotherm_2019_1_win.zip
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Frequency Based Power Control變頻控制功率
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全新Smart Part: Power Controller
• 使用方式:定義多條不同頻率的功率vs溫度曲線並搭配溫度監控點，啟動暫態分析時，功率會隨溫度變化自動切換不同頻率曲線。
• 特色: 可搭配監控點溫度來回控制功率。
• 應用範例:智慧型手機之功率控制
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Power Controller應用範例-智慧型手機
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0
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0 5 10 15 20 25 30Po
wer
(W)
Time(sec.)
Power vs Time
0
0.5
1
1.5
2
2.5
3
0 5 10 15 20 25 30
Fre
qu
ency
(Hz)
Time(sec.)
Frequency vs Time
30
50
70
90
110
0 5 10 15 20 25 30
Tem
per
atu
re(d
egC
)
Time(sec.)
Temperature vs Time
Solve
Supply ChainECXML雙向支援
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ECXML雙向支援
• ECXML為FloTHERM與Icepak雙向溝通檔案格式
• FloTHERM 2019.1版本開始，開放import/export ECXML，無須額外license
• 未來ECXML將支援Import FloTHERMXT,FloEFD, STAR-CCM+
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Boundary Condition Independent Reduced Order Models輸出簡化模型與高速運算
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Reduced Order Modelling簡介
• 功能:使用ROM方式將極複雜模型輸出成矩陣格式，並搭配外部求解器可大幅減少求解時間，可暫態分析。
• 應用範例:IGBT多熱源分析
• 使用限制:只考慮熱傳導、無熱對流、無熱輻射(Conduction only、Radiation off)，只提供監控點溫度結果
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Reduced Order Model:
System of R equations
R much smaller and solves much
faster than N
Simcenter Flotherm Model:
System of N equations
ROM
EXTRACTION
ROM
Accurate Results
Reduced Order Modelling流程
• 流程:完成建模與網格設定→匯出BCI-ROM矩陣→匯入MATLAB或GNU Octave(open source)快速求解
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ROM
EXTRACTION
Reduced Order Modelling特色
• 面對非線性的功率變化，能更快速取得暫態計算結果
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HTCTOP = 10
HTCBOTTOM = 55
HTCCUTOUT1 = 2000
HTCCUTOUT2 = 500
Shanghai
Chicago
Shanghai to Chicago
Commercial Flight: 14h
40,000x Faster?
1.26 seconds!
Results within specified relative
error of Flotherm, and up to
40,000x faster!
P1 = A1 + B1sin(ω1t)
P2 = A2 + B2sin(ω2t)
P3 = A3 + B3sin(ω3t)
…
P9 = A9 + B9sin(ω9t)
Reduced Order Modelling範例-IGBT多熱源分析
• IGBT Example from Validation Report:
• 18 Heat Sources and 3 Ambients
• HTCs selected from Design of Experiments set.
• Powers turned on at t = 0 and system allowed to reach steady state for both Flotherm and BCI-ROM solutions.
• Using default BCI-ROM settings at a selected HTC set:
• Maximum Error: 0.151%
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Thermal Netlist Extraction輸出熱阻網路模型與電路耦合分析
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Thermal Netlist Extraction簡介
• 功能:利用ROM簡化模型輸出技術，將求解結果輸出成熱阻網路後，輸入至Mentor Eldo底下執行熱電耦合分析。
• 特色:溫度參數將參與電性分析，分析溫度對電路的影響。
• 應用範例:車用IC溫度可靠度測試，AEC-Q100規範
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THERMAL NETLIST ELECTRICAL NETLIST
ELECTROTHERMAL
ANALYSIS
Electrothermal Circuit Analysis
• 隨著車聯網的應用的發展，車電供應鏈也被須符合元件測試的標準規範，例如AEC-Q100(IC)、101(離散元件)、200(被動元件)，當中AEC-Q100與AEC-Q100H會針對元件的溫度可靠度測試及不同溫度等級之下測試溫度電性分析，可透過Thermal Netlist的穩態或暫態電性分析來實現。
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Thanks for your attention!!
勢流科技股份有限公司Flotrend Corporation
110台北市信義區忠孝東路五段550號13樓TEL: 02-27266269
FAX: 02-27266265
WEB: www.flotrend.com.tw
CFD Technical Support Mail Box: [email protected]
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