27 Sep
The Philippine Distribution Code (PDC) has Power Quality (PQ) performance regulation for Distribution Utilities. In Section 3.2 of the PDC, it provides generalities and specific limitations for quality regulation. I have copied section 3.2.1.2 from the PDC for the purpose of this article, see below.
In this section, the PDC points to the identification of a [...]
18 Sep
When interconnecting wind power generation in a power system, planners interconnect a “negative” load. Wind power generation normally utilize induction generators which are capable of producing real power (watts) but not reactive power (vars) in contrast with synchronous generators.
In this case, reactive power support is needed for wind power generation to supply power to the [...]
26 Aug
Wind power supply has further implications on system reliability because of its variability and can impact power quality in its nature of power production since it uses power electronics for power control that can produce harmonics and with its variability which can result to unacceptable voltage variations and voltage flickers. Ilocos Norte Electric Cooperative [...]
25 Aug
Distribution Utilities (DUs) when planning for their distribution system, are faced with various options and constraints. One of the DUs’ process in system planning is choosing the right size of overhead distribution conductor for a given load, voltage level and expected load growth just to name a few. Most of the time, DUs have a [...]
31 Jul
Abstract
It has been a general practice by distribution utilities to parallel overhead distribution lines/feeders in a common right of way and the same pole as they terminate from a common substation. This paper studies the impact of modeling parallel overhead distribution lines. The modeling of this kind of circuits in the regulated status of electric [...]
2 Jul
Abstract— Distributed generation (DG) allocation problem is addressed utilizing fuzzy multi-objective optimization in this paper. It is shown that the methodology provides needed consideration for DG allocation and accounts for uncertainty using fuzzy set theory. Voltage drop reduction, short circuit capacity (SCC) augmentation, decrease operation cost and system losses reduction were considered as objectives for [...]
28 Jun
Power Quality (PQ) has become a major concern in electric power systems with the increased proliferation of computer electronic loads and power electronic devices in the power system, and more consumer interest in power delivery issues. Understanding PQ requires taking on the viewpoints of the electric utilities, consumers and operators of [...]
28 Jun
When the physicians of the power system (planners and operators) treat for resource inadequacy, congestion, instability and all the modern-day maladies of competitive power markets, their regimen may come with an increasingly common side effect – harmonics. The utilization of static var compensators (SVC), induction generators, source converters, underground and [...]
18 Apr
Rationale – Since distribution utilities (DUs) are regulated with their operational power quality (PQ) and system reliability, which accounts for System Average Interruption Frequency Index (SAIFI) and System Average Interruption Duration Index (SAIDI), it may be considered to utilize the historical data for DU planning in the context of probabilistic evaluation.
Concept Methodology-
1. Gather PQ and [...]
13 Apr
Voltage security in power system planning and operations is an important factor of grid and distribution codes in the Philippines. The power system, system components and customer devices respond to the magnitude of voltage in a manner that would impact its operation. Power system interruption cascades when voltage collapse is experienced. Generators [...]
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