A Hybrid Forecasting Model Based on EMD-GASVM-RBFNN for Power Grid Investment Demand

Table 1

Partitioning of grid investment demand influencing factors.

Type	Acting factors	Features
Short-term impact factors	Major policy changes, the international financial crisis and other uncertainties.	Most of them are emergent events, with strong uncertainty and randomness.
Medium-term impact factors	National five-year development plan, phased planning of power planning department, etc.	These factors have obvious periodic characteristics
Long-term impact factors	Safeguarding the country’s current level of economic and social development and serving the goal of long-term national planning	Such factors have the characteristics of long-term, tendency and stability.