Fig.2. Tariff of selling electricity to upstream grid
The diesel generator fuel cost curve is assumed as a non-linear
quadratic function. Assuming an approximation technique of solution, it
is intended to piece wisely solve this non-linear function using 100
linear pieces. The coefficients of the cost function and minimum-maximum
power produced by diesel generator are shown in Table 2 [17- 19].
TABLE 2. COST FUNCTION AND MIN-MAX DIESEL GENERATOR POWER