MCQs of Load Forecasting (Power System Operation and Control - 2180909)

Showing 11 to 20 out of 21 Questions

11.

Which of the following techniques is the basic for extrapolation?

12.

The correlation technique relates system load to

(a)	Various demographic factors
(b)	Economic factors
(c)	Both a and b
(d)	None of the above

13.

What is the disadvantage of correlation methods?

(a)	Required more past data for analysis
(b)	Required more data space
(c)	Less accuracy
(d)	Load forecasting for demographic and economic factors is difficult

14.

Which of the following equations is used to estimate the average term in the deterministic part of load?

15.

Which of the following equations is used to estimate the trend term in the deterministic part of load?

(a)	$\frac{N {\sum d_{d} (σ) σ}_{σ = 1}^{N} + {\sum d_{d} (σ)}_{σ = 1}^{N} {\sum σ}_{σ = 1}^{N}}{N {\sum σ^{2}}_{σ = 1}^{N} + {[{\sum σ}_{σ = 1}^{N}]}^{2}}$
(b)	$\frac{N {\sum d_{d} (σ) σ}_{σ = 1}^{N} + {\sum d_{d} (σ)}_{σ = 1}^{N} {\sum σ}_{σ = 1}^{N}}{N {\sum σ^{2}}_{σ = 1}^{N} + {[{\sum σ}_{σ = 1}^{N}]}^{2}}$
(c)	$\frac{N {\sum d_{d} (σ) σ}_{σ = 1}^{N} - {\sum d_{d} (σ)}_{σ = 1}^{N} {\sum σ}_{σ = 1}^{N}}{N {\sum σ^{2}}_{σ = 1}^{N} - {[{\sum σ}_{σ = 1}^{N}]}^{2}}$
(d)	None of above

16.

What is the limitation of estimation of average and trend term of deterministic part of load.

(a)	Required more space in computer
(b)	Required fast computer
(c)	Data processed may not be adequate for statistics calculation.
(d)	All of above

17.

Which of the following is the simplest form of stochastic time series model?

(a)	Generalize load modelling
(b)	Estimation of periodic components
(c)	Time Estimation
(d)	Auto-regressive model

18.

The n-th order auto-regressive model of sequence

d_{s} (σ)

can be expressed as

19.

Kalman filtering algorithm is widely used for

(a)	Short term or very short term load forecasting
(b)	Long term load forecasting
(c)	Medium load forecasting
(d)	Very long term load forecasting

20.

Limitation of Kalman and prediction techniques

(a)	Required large time to estimate
(b)	Depends on availability of required state variable model of the load data which is not available at starting
(c)	Require more space to data storage
(d)	All of above

Showing 11 to 20 out of 21 Questions