摘要
火电厂仿真计算中涉及到水和水蒸气热力性质的计算一般采用查表法和拟合公式法,但查表法在有限的计算机硬件条件下计算速度较慢,难以实现火电厂动态仿真的实时性要求。对此,将IAPWS-IF97拟合公式用Visual C++6.0编程软件编制成动态链接库函数,用于仿真计算水和水蒸气的热力性质。与查表法相比,该方法计算速度有明显提高,可满足实时仿真要求。
In emulation of thermal power plant, the calculation of thermodynamic properties of water and steam is involved,in general,the looking - up table（LUP） method and fitting formula method are to be adopted. But, the speed of LUP method is slower under condition of limited hardwares of the computer,and being difficult to realize realtime emulation required in the dynamic emulation of power plant. For this reason, a dynamic link library（DLL） function has been worked out from IAPWS- IF 97 fitting formula by using Visual Cd-d-O. 6 programming software and being used for calculation the thermodynamic properties of water and steam. Compared with the looking - up table method,the com- puting speed of the latter method has been remarkably enhanced,and can satisfy the requirement of re- altime emulation.
出处
《热力发电》
CAS
北大核心
2009年第8期36-40,45,共6页
Thermal Power Generation
