The per unit representation of the weight [[omega].sub.12] is utilized as the input signal for the loop filter (LF) of the APLL is derived as:
In APLL, the frequency and phase angle of the fundamental grid voltage is recursively updated by the loop filter (LF) and voltage controlled oscillator (VCO) this is the main difference between the ADALINE algorithm and the proposed APLL ,the frequency and phase angle signals utilized in the ADALINE weights updating process are assumed to be constant.
APLL has already begun handling apparel exports from Kenya, which is East Africa's key trading hub, and an increasingly attractive sourcing location.
Danny Goh, APLL's Vice President for South Asia, whose remit also includes Africa, said, "As our customers seek to leverage new and developing opportunities to expand their sourcing networks, APLL has been working closely with them to expand our own supply chain network management capabilities into new markets such as Kenya, which has very quickly become a sourcing location with great potential."